GSE SYSTEMS INC SEC EDGAR Filings (CIK 0000944480)

SEC EDGAR filings, ownership reports, and insider transactions for GSE SYSTEMS INC.

Industry
Services Prepackaged Software (Office Of Technology)
Business address
6940 Columbia Gateway Drive, Suite 470, Columbia, MD, 21046-3308
State of incorporation
DE
Fiscal year end
31 December
⭐ Add to watchlist ⭐
Get insider transactions for this issuer
GSE SYSTEMS INC has filed 1,306 SEC EDGAR filings since 14 Feb 1996

Latest Filings

Recent SEC filings for GSE SYSTEMS INC including SCHEDULE 13G/A, SC 13G/A, EFFECT and more.

Form type Document Filing Description Filing date Reporting date File number(s)
SCHEDULE 13G/A Open SCHEDULE 13G/A document View SEC filing for SCHEDULE 13G/A 14 Feb 2025 005-45371
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 14 Nov 2024 005-45371
EFFECT Open EFFECT document View SEC filing for EFFECT 13 Nov 2024 333-276128
EFFECT Open EFFECT document View SEC filing for EFFECT 13 Nov 2024 333-264114
15-12G Open 15-12G document View SEC filing for 15-12G 15-12G 13 Nov 2024 001-14785
POS AM Open POS AM document View SEC filing for POS AM POS AM 08 Nov 2024 333-276128
POS AM Open POS AM document View SEC filing for POS AM POS AM 08 Nov 2024 333-264114
S-8 POS Open S-8 POS document View SEC filing for S-8 POS S-8 POS 08 Nov 2024 333-212241
S-8 POS Open S-8 POS document View SEC filing for S-8 POS S-8 POS 08 Nov 2024 333-183427
S-8 POS Open S-8 POS document View SEC filing for S-8 POS S-8 POS 08 Nov 2024 333-150249
S-8 POS Open S-8 POS document View SEC filing for S-8 POS S-8 POS 08 Nov 2024 333-138702
S-8 POS Open S-8 POS document View SEC filing for S-8 POS S-8 POS 08 Nov 2024 333-08805
25-NSE Open 25-NSE document View SEC filing for 25-NSE 01 Nov 2024 001-14785
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 01 Nov 2024 31 Oct 2024 001-14785
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 29 Oct 2024 29 Oct 2024 001-14785
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFA14A 25 Oct 2024 001-14785
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 25 Oct 2024 25 Oct 2024 001-14785
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFA 14A 23 Oct 2024 001-14785
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 23 Oct 2024 23 Oct 2024 001-14785
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFA 14A 22 Oct 2024 001-14785
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 22 Oct 2024 22 Oct 2024 001-14785
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFA 14A 21 Oct 2024 001-14785
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 21 Oct 2024 18 Oct 2024 001-14785
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFA14A 18 Oct 2024 001-14785
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 18 Oct 2024 14 Oct 2024 001-14785
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFA14A 16 Oct 2024 001-14785
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 16 Oct 2024 16 Oct 2024 001-14785
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFA14A 15 Oct 2024 001-14785
SC 13D Open SC 13D document View SEC filing for SC 13D SCHEDULE 13D 11 Oct 2024 005-45371
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEF14A 08 Oct 2024 001-14785
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 08 Oct 2024 02 Oct 2024 001-14785
4 Open 4 document View SEC filing for 4 02 Oct 2024 30 Sep 2024
4 Open 4 document View SEC filing for 4 02 Oct 2024 30 Sep 2024
4 Open 4 document View SEC filing for 4 02 Oct 2024 30 Sep 2024
4 Open 4 document View SEC filing for 4 02 Oct 2024 30 Sep 2024
DEFM14A Open DEFM14A document View SEC filing for DEFM14A DEFM14A 18 Sep 2024 001-14785
DEFM14A Open DEFM14A document View SEC filing for DEFM14A DEFM14A 16 Sep 2024 001-14785
PREM14A Open PREM14A document View SEC filing for PREM14A PREM14A 04 Sep 2024 04 Sep 2024 001-14785
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 14 Aug 2024 30 Jun 2024 001-14785
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 14 Aug 2024 14 Aug 2024 001-14785
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A AMENDMENT NO. 1 TO SCHEDULE 13G 09 Aug 2024 005-45371
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 08 Aug 2024 07 Aug 2024 001-14785
4 Open 4 document View SEC filing for 4 05 Aug 2024 22 Jul 2024
8-K Open 8-K document View SEC filing for 8-K RAVI KHANNA EMPLOYMENT AGREEMENT 26 Jul 2024 22 Jul 2024 001-14785
144 Open 144 document View SEC filing for 144 03 Jul 2024 001-14785
4 Open 4 document View SEC filing for 4 02 Jul 2024 30 Jun 2024
4 Open 4 document View SEC filing for 4 02 Jul 2024 30 Jun 2024
4 Open 4 document View SEC filing for 4 02 Jul 2024 30 Jun 2024
4 Open 4 document View SEC filing for 4 02 Jul 2024 30 Jun 2024
8-K Open 8-K document View SEC filing for 8-K FORM 8-K GSE SYSTEMS 2024 ANNUAL MEETING RESULTS 02 Jul 2024 01 Jul 2024 001-14785
DEFA14A Open DEFA14A document View SEC filing for DEFA14A GSE SYSTEMS, INC 2024 PROXY CARD 29 May 2024 001-14785
DEF 14A Open DEF 14A document View SEC filing for DEF 14A GSE SYSTEMS, INC. 2024 DEFINITIVE PROXY 24 May 2024 01 Jul 2024 001-14785
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 15 May 2024 31 Mar 2024 001-14785
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 15 May 2024 15 May 2024 001-14785
8-K Open 8-K document View SEC filing for 8-K GSE SYSTEMS, INC FORM 8-K APPOINTMENT OF DAMIAN DELONGCHAMP AS CHIEF OPERATING O 14 May 2024 08 May 2024 001-14785
PRE 14A Open PRE 14A document View SEC filing for PRE 14A GSE PRELIMINARY PROXY STATEMENT 13 May 2024 13 May 2024 001-14785
SC 13D Open SC 13D document View SEC filing for SC 13D LOUDERMILK SCHEDULE 13D 06 May 2024 005-45371
8-K Open 8-K document View SEC filing for 8-K GSE SYSTEMS, INC. FORM 8-K 30 Apr 2024 24 Apr 2024 001-14785
10-K/A Open 10-K/A document View SEC filing for 10-K/A GSE SYSTEMS FORM 10-K/A 04-29-2024 29 Apr 2024 29 Apr 2024 001-14785
SC 13G Open SC 13G document View SEC filing for SC 13G SCHEDULE 13G 05 Apr 2024 005-45371
10-K/A Open 10-K/A document | Open XBRL data View SEC filing for 10-K/A 10-K/A 02 Apr 2024 31 Dec 2023 001-14785
4 Open 4 document View SEC filing for 4 02 Apr 2024 31 Mar 2024
4 Open 4 document View SEC filing for 4 02 Apr 2024 31 Mar 2024
4 Open 4 document View SEC filing for 4 02 Apr 2024 31 Mar 2024
4 Open 4 document View SEC filing for 4 02 Apr 2024 31 Mar 2024
4 Open 4 document View SEC filing for 4 02 Apr 2024 31 Mar 2024
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 02 Apr 2024 31 Dec 2023 001-14785
NT 10-K Open NT 10-K document View SEC filing for NT 10-K NT 10-K 02 Apr 2024 31 Dec 2023 001-14785
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 01 Apr 2024 01 Apr 2024 001-14785
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 14 Feb 2024 005-45371
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 13 Feb 2024 005-45371
8-K Open 8-K document View SEC filing for 8-K GSE SYSTEMS, INC. - FORM 8-K LIND NOTE AMENDMENTS FEB. 2024 13 Feb 2024 12 Feb 2024 001-14785
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SC 13G/A 09 Feb 2024 005-45371
4 Open 4 document View SEC filing for 4 03 Jan 2024 31 Dec 2023
4 Open 4 document View SEC filing for 4 03 Jan 2024 31 Dec 2023
4 Open 4 document View SEC filing for 4 03 Jan 2024 31 Dec 2023
4 Open 4 document View SEC filing for 4 03 Jan 2024 31 Dec 2023
4 Open 4 document View SEC filing for 4 03 Jan 2024 31 Dec 2023
EFFECT Open EFFECT document View SEC filing for EFFECT 29 Dec 2023 333-276128
CORRESP Open CORRESP document View SEC filing for CORRESP 28 Dec 2023
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 21 Dec 2023
S-3/A Open S-3/A document View SEC filing for S-3/A S-3/A 20 Dec 2023 333-276128
S-3 Open S-3 document View SEC filing for S-3 S-3 19 Dec 2023 333-276128
8-K Open 8-K document View SEC filing for 8-K GSE SYSTEMS, INC. UNREGISTERED SALE OF SECURITIES 18 Dec 2023 18 Dec 2023 001-14785
SC 13G Open SC 13G document View SEC filing for SC 13G 12 Dec 2023 005-45371
8-K Open 8-K document View SEC filing for 8-K GSE FORM 8-K ITEM 3.02. UNREGISTERED SALE OF SECURITIES. 06 Dec 2023 06 Dec 2023 001-14785
RW Open RW document View SEC filing for RW GSE SYSTEMS, INC. - REQUEST FOR WITHDRAWAL - FORM RW 01 Dec 2023 333-275791
S-3 Open S-3 document View SEC filing for S-3 POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-3 REGISTRATION STATEMENT NO. 333-264114 30 Nov 2023 333-275791
4 Open 4 document View SEC filing for 4 27 Nov 2023 20 Nov 2023
8-K Open 8-K document View SEC filing for 8-K NASDAQ STAFF DETERMINATION - REQUIREMENT CURED 17 Nov 2023 17 Nov 2023 001-14785
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 14 Nov 2023 30 Sep 2023 001-14785
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 14 Nov 2023 14 Nov 2023 001-14785
8-K Open 8-K document View SEC filing for 8-K NASDAQ DELISTING NOTICE AND APPEAL 03 Nov 2023 03 Nov 2023 001-14785
8-K Open 8-K document View SEC filing for 8-K REVERSE STOCK SPLIT 26 Oct 2023 25 Oct 2023 001-14785
8-K Open 8-K document View SEC filing for 8-K 06 Oct 2023 06 Oct 2023 001-14785
4 Open 4 document View SEC filing for 4 03 Oct 2023 30 Sep 2023
4 Open 4 document View SEC filing for 4 03 Oct 2023 30 Sep 2023
4 Open 4 document View SEC filing for 4 03 Oct 2023 30 Sep 2023
4 Open 4 document View SEC filing for 4 03 Oct 2023 30 Sep 2023
4 Open 4 document View SEC filing for 4 03 Oct 2023 30 Sep 2023
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 16 Aug 2023 30 Jun 2023 001-14785
NT 10-Q Open NT 10-Q document View SEC filing for NT 10-Q NT 10-Q 15 Aug 2023 30 Jun 2023 001-14785
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 14 Aug 2023 14 Aug 2023 001-14785
8-K Open 8-K document View SEC filing for 8-K GSE LOUDERMILK AGREEMENT 28 Jul 2023 28 Jul 2023 001-14785
4 Open 4 document View SEC filing for 4 05 Jul 2023 30 Jun 2023
4 Open 4 document View SEC filing for 4 05 Jul 2023 30 Jun 2023
4 Open 4 document View SEC filing for 4 05 Jul 2023 30 Jun 2023
4 Open 4 document View SEC filing for 4 05 Jul 2023 30 Jun 2023
8-K Open 8-K document View SEC filing for 8-K FORM 8-K GSE LIND 2003 TRANSACTION 26 Jun 2023 26 Jun 2023 001-14785
4 Open 4 document View SEC filing for 4 14 Jun 2023 12 Jun 2023
4 Open 4 document View SEC filing for 4 14 Jun 2023 12 Jun 2023
4 Open 4 document View SEC filing for 4 14 Jun 2023 12 Jun 2023
8-K Open 8-K document View SEC filing for 8-K GSE SYSTEMS, INC. 2023 ANNUAL MEETING RESULTS 13 Jun 2023 12 Jun 2023 001-14785
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 15 May 2023 31 Mar 2023 001-14785
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 15 May 2023 15 May 2023 001-14785
8-K Open 8-K document View SEC filing for 8-K GSE SYSTEMS, INC FORM 8-K DEPARTURE OF DIRECTORS OR CERTAIN OFFICERS 08 May 2023 07 May 2023 001-14785
8-K Open 8-K document View SEC filing for 8-K GSE SYSTEMS FORM 8-K NASDAQ EXTENSION GRANT 04 May 2023 04 May 2023 001-14785
DEFA14A Open DEFA14A document View SEC filing for DEFA14A GSE SYSTEMS, INC. 2023 ANNUAL MEETING NOTICE 02 May 2023 001-14785
DEF 14A Open DEF 14A document View SEC filing for DEF 14A GSE DEFINITIVE PROXY STATEMENT 02 May 2023 02 May 2023 001-14785
8-K Open 8-K document View SEC filing for 8-K GVP FORM 8-K (NEW ORDERS) 25 Apr 2023 25 Apr 2023 001-14785
PRE 14A Open PRE 14A document View SEC filing for PRE 14A GSE PRELIMINARY PROXY STATEMENT 2023 17 Apr 2023 17 Apr 2023 001-14785
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 17 Apr 2023 31 Dec 2022 001-14785
4 Open 4 document View SEC filing for 4 07 Apr 2023 05 Apr 2023
4 Open 4 document View SEC filing for 4 07 Apr 2023 05 Apr 2023
4 Open 4 document View SEC filing for 4 07 Apr 2023 05 Apr 2023
4 Open 4 document View SEC filing for 4 07 Apr 2023 05 Apr 2023
4 Open 4 document View SEC filing for 4 07 Apr 2023 05 Apr 2023
4 Open 4 document View SEC filing for 4 07 Apr 2023 05 Apr 2023
4 Open 4 document View SEC filing for 4 04 Apr 2023 31 Mar 2023
4 Open 4 document View SEC filing for 4 04 Apr 2023 31 Mar 2023
4 Open 4 document View SEC filing for 4 04 Apr 2023 31 Mar 2023
4 Open 4 document View SEC filing for 4 04 Apr 2023 31 Mar 2023
4 Open 4 document View SEC filing for 4 04 Apr 2023 31 Mar 2023
4 Open 4 document View SEC filing for 4 04 Apr 2023 31 Mar 2023
NT 10-K Open NT 10-K document View SEC filing for NT 10-K NT 10-K 03 Apr 2023 31 Dec 2022 001-14785
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 30 Mar 2023 30 Mar 2023 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 21 Mar 2023 17 Mar 2023
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 14 Feb 2023 005-45371
8-K Open 8-K document View SEC filing for 8-K FORM 8-K RENEWED 5-YEAR CONTRACT 18 Jan 2023 18 Jan 2023 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 04 Jan 2023 31 Dec 2022
4 Open 4 document View SEC filing for 4 FORM 4 04 Jan 2023 31 Dec 2022
4 Open 4 document View SEC filing for 4 FORM 4 04 Jan 2023 31 Dec 2022
4 Open 4 document View SEC filing for 4 FORM 4 04 Jan 2023 31 Dec 2022
4 Open 4 document View SEC filing for 4 FORM 4 04 Jan 2023 31 Dec 2022
4 Open 4 document View SEC filing for 4 FORM 4 04 Jan 2023 31 Dec 2022
4 Open 4 document View SEC filing for 4 FORM 4 15 Dec 2022 14 Dec 2022
4 Open 4 document View SEC filing for 4 FORM 4 28 Nov 2022 23 Nov 2022
4 Open 4 document View SEC filing for 4 FORM 4 22 Nov 2022 18 Nov 2022
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 14 Nov 2022 30 Sep 2022 001-14785
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 14 Nov 2022 14 Nov 2022 001-14785
8-K Open 8-K document View SEC filing for 8-K FORM 8-K GSE SYSTEMS, INC DELISTING NOTICE 08 Nov 2022 08 Nov 2022 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 04 Oct 2022 30 Sep 2022
4 Open 4 document View SEC filing for 4 FORM 4 04 Oct 2022 30 Sep 2022
4 Open 4 document View SEC filing for 4 FORM 4 04 Oct 2022 30 Sep 2022
4 Open 4 document View SEC filing for 4 FORM 4 04 Oct 2022 30 Sep 2022
4 Open 4 document View SEC filing for 4 FORM 4 04 Oct 2022 30 Sep 2022
4 Open 4 document View SEC filing for 4 FORM 4 04 Oct 2022 30 Sep 2022
4 Open 4 document View SEC filing for 4 FORM 4 14 Sep 2022 14 Sep 2022
8-K Open 8-K document View SEC filing for 8-K GSE INVESTOR PRESENTATION 09-2022 12 Sep 2022 12 Sep 2022 001-14785
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 15 Aug 2022 30 Jun 2022 001-14785
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 15 Aug 2022 15 Aug 2022 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 05 Jul 2022 30 Jun 2022
4 Open 4 document View SEC filing for 4 FORM 4 01 Jul 2022 30 Jun 2022
4 Open 4 document View SEC filing for 4 FORM 4 01 Jul 2022 30 Jun 2022
4 Open 4 document View SEC filing for 4 FORM 4 01 Jul 2022 30 Jun 2022
4 Open 4 document View SEC filing for 4 FORM 4 01 Jul 2022 30 Jun 2022
4 Open 4 document View SEC filing for 4 FORM 4 01 Jul 2022 30 Jun 2022
4 Open 4 document View SEC filing for 4 FORM 4 01 Jul 2022 30 Jun 2022
8-K Open 8-K document View SEC filing for 8-K GSE SYSTEMS INC - FORM 8-K FOR 2022 ANNUAL MEETING 17 Jun 2022 17 Jun 2022 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 16 Jun 2022 14 Jun 2022
4 Open 4 document View SEC filing for 4 FORM 4 16 Jun 2022 14 Jun 2022
4 Open 4 document View SEC filing for 4 FORM 4 16 Jun 2022 14 Jun 2022
4 Open 4 document View SEC filing for 4 FORM 4 16 Jun 2022 14 Jun 2022
4 Open 4 document View SEC filing for 4 FORM 4 16 Jun 2022 14 Jun 2022
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFA 14A PROXY SUPPLEMENT 01 Jun 2022 001-14785
8-K Open 8-K document View SEC filing for 8-K FORM 8-K DHG MERGER 01 Jun 2022 01 Jun 2022 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 26 May 2022 24 May 2022
EFFECT Open EFFECT document View SEC filing for EFFECT 25 May 2022 333-264114
CORRESP Open CORRESP document View SEC filing for CORRESP 24 May 2022
CORRESP Open CORRESP document View SEC filing for CORRESP 24 May 2022
S-3/A Open S-3/A document View SEC filing for S-3/A GSE FORM S-3/A 24 May 2022 333-264114
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 16 May 2022 31 Mar 2022 001-14785
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 16 May 2022 16 May 2022 001-14785
DEFA14A Open DEFA14A document View SEC filing for DEFA14A GSE SYSTEMS PROXY NOTICE 02 May 2022 001-14785
DEF 14A Open DEF 14A document View SEC filing for DEF 14A GSE DEFINITIVE PROXY STATEMENT 2022 02 May 2022 02 May 2022 001-14785
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 11 Apr 2022
4 Open 4 document View SEC filing for 4 FORM 4 06 Apr 2022 05 Apr 2022
4 Open 4 document View SEC filing for 4 FORM 4 06 Apr 2022 05 Apr 2022
4 Open 4 document View SEC filing for 4 FORM 4 06 Apr 2022 05 Apr 2022
4 Open 4 document View SEC filing for 4 FORM 4 06 Apr 2022 05 Apr 2022
4 Open 4 document View SEC filing for 4 FORM 4 06 Apr 2022 05 Apr 2022
4 Open 4 document View SEC filing for 4 FORM 4 06 Apr 2022 05 Apr 2022
S-3 Open S-3 document View SEC filing for S-3 GSE SYSTEMS INC - FORM S-3 04 Apr 2022 333-264114
8-K Open 8-K document View SEC filing for 8-K FORM 8-K INVESTOR PRESENTATION 04 Apr 2022 04 Apr 2022 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 01 Apr 2022 31 Mar 2022
4 Open 4 document View SEC filing for 4 FORM 4 01 Apr 2022 31 Mar 2022
4 Open 4 document View SEC filing for 4 FORM 4 01 Apr 2022 31 Mar 2022
4 Open 4 document View SEC filing for 4 FORM 4 01 Apr 2022 31 Mar 2022
4 Open 4 document View SEC filing for 4 FORM 4 01 Apr 2022 31 Mar 2022
4 Open 4 document View SEC filing for 4 FORM 4 01 Apr 2022 31 Mar 2022
4 Open 4 document View SEC filing for 4 FORM 4 01 Apr 2022 31 Mar 2022
8-K/A Open 8-K/A document | Open XBRL data View SEC filing for 8-K/A 8-K/A 01 Apr 2022 31 Mar 2022 001-14785
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 31 Mar 2022 31 Dec 2021 001-14785
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 31 Mar 2022 31 Mar 2022 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 22 Mar 2022 18 Mar 2022
4 Open 4 document View SEC filing for 4 FORM 4 22 Mar 2022 18 Mar 2022
4 Open 4 document View SEC filing for 4 FORM 4 16 Mar 2022 15 Mar 2022
3 Open 3 document View SEC filing for 3 FORM 3 11 Mar 2022 28 Feb 2022
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 01 Mar 2022 28 Feb 2022 001-14785
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 28 Feb 2022 28 Feb 2022 001-14785
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 14 Feb 2022 005-45371
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A FORM SC 13G/A 09 Feb 2022 005-45371
4 Open 4 document View SEC filing for 4 FORM 4 04 Jan 2022 31 Dec 2021
4 Open 4 document View SEC filing for 4 FORM 4 04 Jan 2022 31 Dec 2021
4 Open 4 document View SEC filing for 4 FORM 4 04 Jan 2022 31 Dec 2021
4 Open 4 document View SEC filing for 4 FORM 4 04 Jan 2022 31 Dec 2021
4 Open 4 document View SEC filing for 4 FORM 4 04 Jan 2022 31 Dec 2021
4 Open 4 document View SEC filing for 4 FORM 4 04 Jan 2022 31 Dec 2021
4 Open 4 document View SEC filing for 4 FORM 4 04 Jan 2022 31 Dec 2021
4 Open 4 document View SEC filing for 4 FORM 4 22 Nov 2021 18 Nov 2021
4 Open 4 document View SEC filing for 4 FORM 4 18 Nov 2021 16 Nov 2021
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 15 Nov 2021 30 Sep 2021 001-14785
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 15 Nov 2021 15 Nov 2021 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 04 Oct 2021 30 Sep 2021
4 Open 4 document View SEC filing for 4 FORM 4 01 Oct 2021 30 Sep 2021
4 Open 4 document View SEC filing for 4 FORM 4 01 Oct 2021 30 Sep 2021
4 Open 4 document View SEC filing for 4 FORM 4 01 Oct 2021 30 Sep 2021
4 Open 4 document View SEC filing for 4 FORM 4 01 Oct 2021 30 Sep 2021
8-K Open 8-K document View SEC filing for 8-K FORM 8-K GSE SYSTEMS IR PRESENTATION 9-20-2021 20 Sep 2021 20 Sep 2021 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 13 Sep 2021 09 Sep 2021
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 16 Aug 2021 30 Jun 2021 001-14785
8-K Open 8-K document View SEC filing for 8-K 8-K 16 Aug 2021 16 Aug 2021 001-14785
8-K Open 8-K document View SEC filing for 8-K 8-K 06 Aug 2021 04 Aug 2021 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 02 Jul 2021 30 Jun 2021
4 Open 4 document View SEC filing for 4 FORM 4 02 Jul 2021 30 Jun 2021
4 Open 4 document View SEC filing for 4 FORM 4 02 Jul 2021 30 Jun 2021
4 Open 4 document View SEC filing for 4 FORM 4 02 Jul 2021 30 Jun 2021
4 Open 4 document View SEC filing for 4 FORM 4 02 Jul 2021 30 Jun 2021
4 Open 4 document View SEC filing for 4 FORM 4 02 Jul 2021 30 Jun 2021
4 Open 4 document View SEC filing for 4 FORM 4 25 Jun 2021 23 Jun 2021
4 Open 4 document View SEC filing for 4 FORM 4 25 Jun 2021 23 Jun 2021
4 Open 4 document View SEC filing for 4 FORM 4 25 Jun 2021 23 Jun 2021
4 Open 4 document View SEC filing for 4 FORM 4 25 Jun 2021 23 Jun 2021
4 Open 4 document View SEC filing for 4 FORM 4 25 Jun 2021 23 Jun 2021
4 Open 4 document View SEC filing for 4 FORM 4 25 Jun 2021 23 Jun 2021
4 Open 4 document View SEC filing for 4 FORM 4 25 Jun 2021 23 Jun 2021
4 Open 4 document View SEC filing for 4 FORM 4 22 Jun 2021 18 Jun 2021
4 Open 4 document View SEC filing for 4 FORM 4 22 Jun 2021 18 Jun 2021
4 Open 4 document View SEC filing for 4 FORM 4 22 Jun 2021 18 Jun 2021
4 Open 4 document View SEC filing for 4 FORM 4 22 Jun 2021 18 Jun 2021
4 Open 4 document View SEC filing for 4 FORM 4 22 Jun 2021 18 Jun 2021
4 Open 4 document View SEC filing for 4 FORM 4 16 Jun 2021 14 Jun 2021
4 Open 4 document View SEC filing for 4 FORM 4 16 Jun 2021 14 Jun 2021
4 Open 4 document View SEC filing for 4 FORM 4 16 Jun 2021 14 Jun 2021
8-K Open 8-K document View SEC filing for 8-K FORM 8-K GSE SYSTEMS, INC 2021 ANNUAL MEETING RESULTS 15 Jun 2021 15 Jun 2021 001-14785
8-K Open 8-K document View SEC filing for 8-K GSE SYSTEMS INVESTOR PRESENTATION 05-19-2021 19 May 2021 19 May 2021 001-14785
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 17 May 2021 31 Mar 2021 001-14785
8-K Open 8-K document View SEC filing for 8-K 8-K 17 May 2021 17 May 2021 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 11 May 2021 11 May 2021
DEFA14A Open DEFA14A document View SEC filing for DEFA14A GSE SYSTEMS FORM DEFA14A - PROXY NOTICE 30 Apr 2021 001-14785
DEF 14A Open DEF 14A document View SEC filing for DEF 14A GSE DEFINITIVE PROXY STATEMENT 043021 30 Apr 2021 30 Apr 2021 001-14785
8-K Open 8-K document View SEC filing for 8-K FORM 8-K GSE SYSTEMS 50TH ANNIVERSARY 14 Apr 2021 14 Apr 2021 001-14785
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 13 Apr 2021 31 Dec 2020 001-14785
8-K Open 8-K document View SEC filing for 8-K CITIZEN'S BANK NINTH AMENDMENT AND REAFFIRMATION AGREEMENT 02 Apr 2021 02 Apr 2021 001-14785
8-K Open 8-K document View SEC filing for 8-K 8-K 31 Mar 2021 31 Dec 2020 001-14785
NT 10-K Open NT 10-K document View SEC filing for NT 10-K NT 10-K FY20 12B-25 NOTIFICATION OF LATE FILING 31 Mar 2021 31 Mar 2021 001-14785
3 Open 3 document View SEC filing for 3 FORM 3 15 Mar 2021 12 Mar 2021
3 Open 3 document View SEC filing for 3 FORM 3 15 Mar 2021 12 Mar 2021
8-K Open 8-K document View SEC filing for 8-K J. BARNIE BEASLEY DEPARTURE 26 Feb 2021 26 Feb 2021 001-14785
8-K Open 8-K document View SEC filing for 8-K FORM 8-K GVP INVESTOR RELATIONS PRESENTATION 24 Feb 2021 23 Feb 2021 001-14785
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 16 Feb 2021 005-45371
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A FORM SC 13G/A 09 Feb 2021 005-45371
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 05 Feb 2021 005-45371
4 Open 4 document View SEC filing for 4 FORM 4 04 Jan 2021 31 Dec 2020
4 Open 4 document View SEC filing for 4 FORM 4 04 Jan 2021 31 Dec 2020
4 Open 4 document View SEC filing for 4 FORM 4 10 Dec 2020 09 Dec 2020
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q GSE SYSTEMS INC FORM 10-Q Q2 2020 16 Nov 2020 30 Sep 2020 001-14785
8-K Open 8-K document View SEC filing for 8-K 8-K 16 Nov 2020 30 Sep 2020 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 02 Oct 2020 30 Sep 2020
4 Open 4 document View SEC filing for 4 FORM 4 02 Oct 2020 30 Sep 2020
8-K Open 8-K document View SEC filing for 8-K FORM 8-K DEPARTURE OF DIRECTORS OR CERTAIN OFFICERS 25 Sep 2020 21 Sep 2020 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 11 Sep 2020 10 Sep 2020
4 Open 4 document View SEC filing for 4 FORM 4 11 Sep 2020 11 Sep 2020
4 Open 4 document View SEC filing for 4 FORM 4 10 Sep 2020 09 Sep 2020
8-K Open 8-K document View SEC filing for 8-K FORM 8-K - EIGHTH AMENDMENT CITIZENS AGREEMENT 03 Sep 2020 28 Aug 2020 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 02 Sep 2020 31 Aug 2020
4 Open 4 document View SEC filing for 4 FORM 4 01 Sep 2020 31 Aug 2020
4 Open 4 document View SEC filing for 4 FORM 4 01 Sep 2020 31 Aug 2020
4 Open 4 document View SEC filing for 4 FORM 4 01 Sep 2020 31 Aug 2020
4 Open 4 document View SEC filing for 4 FORM 4 01 Sep 2020 31 Aug 2020
3 Open 3 document View SEC filing for 3 FORM 3 31 Aug 2020 31 Aug 2020
8-K Open 8-K document View SEC filing for 8-K FORM 8-K GSE SYSTEMS 2020 ANNUAL SHAREHOLDERS MEETING RESULTS 31 Aug 2020 31 Aug 2020 001-14785
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q GSE SYSTEMS INC FORM 10-Q Q2 2020 20 Aug 2020 30 Jun 2020 001-14785
8-K Open 8-K document View SEC filing for 8-K 8-K 19 Aug 2020 30 Jun 2020 001-14785
NT 10-Q Open NT 10-Q document View SEC filing for NT 10-Q FORM 12B-25 NOTIFICATION OF LATE FILING 2Q20 14 Aug 2020 14 Aug 2020 001-14785
DEF 14A Open DEF 14A document View SEC filing for DEF 14A GSE DEFINITIVE PROXY STATEMENT 07-24-2020 24 Jul 2020 24 Jul 2020 001-14785
8-K Open 8-K document View SEC filing for 8-K GSE SYSTEMS FORM 8-K 07-24-20 CHANGES IN REGISTRANT'S CERTIFYING ACCOUNTANT 24 Jul 2020 23 Jul 2020 001-14785
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q GSE SYSTEMS INC FORM 10-Q Q1 2020 23 Jul 2020 31 Mar 2020 001-14785
8-K Open 8-K document View SEC filing for 8-K 8-K 22 Jul 2020 31 Mar 2020 001-14785
8-K Open 8-K document View SEC filing for 8-K FORM 8-K - GSE SYSTEMS INC 07-10-20 10 Jul 2020 08 Jul 2020 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 07 Jul 2020 30 Jun 2020
4 Open 4 document View SEC filing for 4 FORM 4 07 Jul 2020 30 Jun 2020
NT 10-Q Open NT 10-Q document View SEC filing for NT 10-Q FORM 12B-25 FORM 10-Q PERIOD ENDED MARCH 31, 2020 29 Jun 2020 29 Jun 2020 001-14785
8-K/A Open 8-K/A document View SEC filing for 8-K/A 8-K 16 Jun 2020 31 Dec 2019 001-14785
8-K Open 8-K document View SEC filing for 8-K FORM 8-K NASDAQ MATTER CLOSED 15 Jun 2020 12 Jun 2020 001-14785
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K GSE SYSTEMS, INC. - 2018 - 10-K 11 Jun 2020 31 Dec 2019 001-14785
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 05 Jun 2020 01 Jun 2020 001-14785
8-K Open 8-K document View SEC filing for 8-K GSE SYSTEMS, INC FORM 8-K ITEM 8.01 OTHER EVENTS - FORM 10-K FILING 29 May 2020 29 May 2020 001-14785
8-K Open 8-K document View SEC filing for 8-K FORM 8-K GSE SYSTEMS DEPARTURE OF DIRECTORS & OTHER EVENTS 22 May 2020 19 May 2020 001-14785
8-K Open 8-K document View SEC filing for 8-K GSE SYSTEMS FORM 8-K 10-Q EXTENSION RE COVID AND FULLER DEPARTURE 15 May 2020 12 May 2020 001-14785
NT 10-K Open NT 10-K document View SEC filing for NT 10-K NT 10-K FY19 12B-25 NOTIFICATION OF LATE FILING 14 May 2020 14 May 2020 001-14785
8-K Open 8-K document View SEC filing for 8-K FORM 8-K GSE SYSTEMS INC PPP LOAN 04-30-2020 30 Apr 2020 24 Apr 2020 001-14785
8-K Open 8-K document View SEC filing for 8-K FORM 8-K - GSE SYSTEMS INC. FORM DEF14A EXTENSION 29 Apr 2020 29 Apr 2020 001-14785
8-K Open 8-K document View SEC filing for 8-K FORM 8-K CITIZENS BANK SEVENTH AMENDMENT AND REAFFIRMATION AGREEMENT 17 Apr 2020 17 Apr 2020 001-14785
8-K/A Open 8-K/A document View SEC filing for 8-K/A FORM 8-K/A GSE SYSTEMS INC 10-K FILING DATE 15 Apr 2020 30 Mar 2020 001-14785
8-K Open 8-K document View SEC filing for 8-K 8-K 14 Apr 2020 31 Dec 2019 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 02 Apr 2020 31 Mar 2020
4 Open 4 document View SEC filing for 4 FORM 4 02 Apr 2020 31 Mar 2020
8-K Open 8-K document View SEC filing for 8-K FORM 8-K GSE SYSTEMS 10-K EXTENSION RE COVID-19 30 Mar 2020 30 Mar 2020 001-14785
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SCHEDULE 13G HOLDINGS REPORT AMENDMENT 14 Feb 2020 005-45371
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 14 Feb 2020 005-45371
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SC 13G/A 13 Feb 2020 005-45371
SC 13G Open SC 13G document View SEC filing for SC 13G FORM SC 13G 11 Feb 2020 005-45371
8-K Open 8-K document View SEC filing for 8-K CITIZENS BANK AGREEMENT 08 Jan 2020 07 Jan 2020 001-14785
8-K Open 8-K document View SEC filing for 8-K FORM 8-K SETTLEMENT AND RELEASE AGREEMENT 06 Jan 2020 06 Jan 2020 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 03 Jan 2020 31 Dec 2019
4 Open 4 document View SEC filing for 4 FORM 4 03 Jan 2020 31 Dec 2019
4 Open 4 document View SEC filing for 4 FORM 4 03 Jan 2020 31 Dec 2019
8-K Open 8-K document View SEC filing for 8-K FORM 8-K O'CONNOR ELECTED TO GSE BOARD 20 Dec 2019 17 Dec 2019 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 19 Dec 2019 17 Dec 2019
3 Open 3 document View SEC filing for 3 FORM 3 19 Dec 2019 17 Dec 2019
3/A Open 3/A document View SEC filing for 3/A AMENDED INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES 11 Dec 2019 19 Nov 2019
10-Q/A Open 10-Q/A document View SEC filing for 10-Q/A 10-Q/A 10 Dec 2019 30 Sep 2019 001-14785
3 Open 3 document View SEC filing for 3 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES 29 Nov 2019 19 Nov 2019
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q GSE SYSTEMS INC FORM 10-Q Q3 2019 19 Nov 2019 30 Sep 2019 001-14785
8-K Open 8-K document View SEC filing for 8-K 8-K 19 Nov 2019 19 Nov 2019 001-14785
NT 10-Q Open NT 10-Q document View SEC filing for NT 10-Q NT 10-Q 14 Nov 2019 13 Nov 2019 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 01 Oct 2019 30 Sep 2019
4 Open 4 document View SEC filing for 4 FORM 4 01 Oct 2019 30 Sep 2019
4 Open 4 document View SEC filing for 4 FORM 4 01 Oct 2019 30 Sep 2019
4 Open 4 document View SEC filing for 4 FORM 4 01 Oct 2019 30 Sep 2019
8-K Open 8-K document View SEC filing for 8-K GVP INVESTOR PRESENTATION SEPTEMBER 24, 2019 24 Sep 2019 24 Sep 2019 001-14785
RW Open RW document View SEC filing for RW GSE SYSTEMS-WITHDRAWAL LETTER FOR S-3 19 Sep 2019 333-233286
8-K Open 8-K document View SEC filing for 8-K DEPARTURE OF DIRECTORS OR CERTAIN OFFICERS, REGULATION FD DISCLOSURE 19 Sep 2019 18 Sep 2019 001-14785
S-3 Open S-3 document View SEC filing for S-3 S-3 15 Aug 2019 333-233286
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q GSE SYSTEMS INC FORM 10-Q Q2 2019 14 Aug 2019 30 Jun 2019 001-14785
8-K Open 8-K document View SEC filing for 8-K FORM 8-K - Q2 2019 - EARNINGS RELEASE 14 Aug 2019 30 Jun 2019 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 02 Jul 2019 30 Jun 2019
4 Open 4 document View SEC filing for 4 FORM 4 02 Jul 2019 30 Jun 2019
4 Open 4 document View SEC filing for 4 FORM 4 02 Jul 2019 30 Jun 2019
4 Open 4 document View SEC filing for 4 FORM 4 02 Jul 2019 30 Jun 2019
8-K Open 8-K document View SEC filing for 8-K CITIZEN'S BANK AMENDMENT AND REAFFIRMATION AGREEMENT 01 Jul 2019 28 Jun 2019 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 12 Jun 2019 11 Jun 2019
4 Open 4 document View SEC filing for 4 FORM 4 12 Jun 2019 11 Jun 2019
4 Open 4 document View SEC filing for 4 FORM 4 12 Jun 2019 11 Jun 2019
4 Open 4 document View SEC filing for 4 FORM 4 12 Jun 2019 11 Jun 2019
8-K Open 8-K document View SEC filing for 8-K FORM 8-K RESULTS GSE SYSTEMS 2019 ANNUAL SHAREHOLDERS MEETING 11 Jun 2019 11 Jun 2019 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 07 Jun 2019 05 Jun 2019
DEFA14A Open DEFA14A document View SEC filing for DEFA14A GSE DEFINITIVE ADDITIONAL MATERIALS FOR PROXY STATEMENT 2019-05-31 31 May 2019 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 22 May 2019 20 May 2019
4 Open 4 document View SEC filing for 4 FORM 4 17 May 2019 15 May 2019
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q GSE SYSTEMS INC FORM 10-Q Q1 2019 15 May 2019 31 Mar 2019 001-14785
8-K Open 8-K document View SEC filing for 8-K FORM 8-K - Q1 2019 EARNINGS RELEASE 15 May 2019 31 Mar 2019 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 10 May 2019 08 May 2019
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SC 13G/A 08 May 2019 005-45371
8-K/A Open 8-K/A document View SEC filing for 8-K/A FORM 8-K/A - AMENDMENTS TO 8-K FILED ON FEBRUARY 19, 2019 01 May 2019 19 Feb 2019 001-14785
DEFA14A Open DEFA14A document View SEC filing for DEFA14A GSE SYSTEMS 2019 PROXY NOTICE 30 Apr 2019 001-14785
DEF 14A Open DEF 14A document View SEC filing for DEF 14A GSE SYSTEMS, INC. 2019 PROXY STATEMENT 30 Apr 2019 30 Apr 2019 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 02 Apr 2019 31 Mar 2019
4 Open 4 document View SEC filing for 4 FORM 4 02 Apr 2019 31 Mar 2019
4 Open 4 document View SEC filing for 4 FORM 4 02 Apr 2019 31 Mar 2019
4 Open 4 document View SEC filing for 4 FORM 4 02 Apr 2019 31 Mar 2019
4 Open 4 document View SEC filing for 4 FORM 4 02 Apr 2019 31 Mar 2019
4 Open 4 document View SEC filing for 4 FORM 4 02 Apr 2019 31 Mar 2019
4 Open 4 document View SEC filing for 4 FORM 4 02 Apr 2019 31 Mar 2019
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K GSE SYSTEMS, INC. - 2018 - 10-K 28 Mar 2019 31 Dec 2018 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 20 Mar 2019 15 Mar 2019
8-K Open 8-K document View SEC filing for 8-K GVP - CORPORATE PRESENTATION - MARCH 2019 18 Mar 2019 18 Mar 2019 001-14785
8-K Open 8-K document View SEC filing for 8-K FORM 8-K: EARNINGS RELEASE - FY 2018 14 Mar 2019 31 Dec 2018 001-14785
8-K Open 8-K document View SEC filing for 8-K GSE SYSTEMS ACQUIRES DP ENGINEERING 19 Feb 2019 19 Feb 2019 001-14785
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SC 13G/A 14 Feb 2019 005-45371
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SC 13G/A 14 Feb 2019 005-45371
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SCHEDULE 13G HOLDINGS REPORT AMENDMENT 14 Feb 2019 005-45371
4 Open 4 document View SEC filing for 4 FORM 4 08 Feb 2019 07 Feb 2019
4 Open 4 document View SEC filing for 4 FORM 4 08 Feb 2019 07 Feb 2019
4 Open 4 document View SEC filing for 4 FORM 4 08 Feb 2019 07 Feb 2019
4 Open 4 document View SEC filing for 4 FORM 4 08 Feb 2019 07 Feb 2019
4 Open 4 document View SEC filing for 4 FORM 4 11 Jan 2019 11 Jan 2019
4 Open 4 document View SEC filing for 4 FORM 4 11 Jan 2019 11 Jan 2019
4 Open 4 document View SEC filing for 4 FORM 4 11 Jan 2019 11 Jan 2019
8-K Open 8-K document View SEC filing for 8-K AMENDMENTS TO CERTAIN AGREEMENTS WITH EXECUTIVE OFFICERS 11 Jan 2019 11 Jan 2019 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 03 Jan 2019 31 Dec 2018
4 Open 4 document View SEC filing for 4 FORM 4 03 Jan 2019 01 Jan 2019
4 Open 4 document View SEC filing for 4 FORM 4 03 Jan 2019 31 Dec 2018
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q GSE SYSTEMS INC FORM 10-Q Q3 2018 14 Nov 2018 30 Sep 2018 001-14785
8-K Open 8-K document View SEC filing for 8-K FORM 8-K - Q3 2018 - EARNINGS RELEASE 14 Nov 2018 30 Sep 2018 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 02 Oct 2018 30 Sep 2018
4 Open 4 document View SEC filing for 4 FORM 4 02 Oct 2018 30 Sep 2018
4 Open 4 document View SEC filing for 4 FORM 4 02 Oct 2018 30 Sep 2018
4 Open 4 document View SEC filing for 4 FORM 4 02 Oct 2018 30 Sep 2018
4 Open 4 document View SEC filing for 4 FORM 4 02 Oct 2018 30 Sep 2018
4 Open 4 document View SEC filing for 4 FORM 4 02 Oct 2018 30 Sep 2018
4 Open 4 document View SEC filing for 4 FORM 4 14 Sep 2018 13 Sep 2018
8-K Open 8-K document View SEC filing for 8-K GVP - CORPORATE PRESENTATION - AUGUST 2018 28 Aug 2018 27 Aug 2018 001-14785
8-K Open 8-K document View SEC filing for 8-K FORM 8-K GSE SYSTEMS 2Q18 EARNINGS CALL TRANSCRIPT 17 Aug 2018 17 Aug 2018 001-14785
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q GSE SYSTEMS INC FORM 10-Q Q2 2018 14 Aug 2018 30 Jun 2018 001-14785
8-K Open 8-K document View SEC filing for 8-K FORM 8-K - Q2 2018 - EARNINGS RELEASE 14 Aug 2018 30 Jun 2018 001-14785
8-K/A Open 8-K/A document View SEC filing for 8-K/A FORM 8-K/A - AMENDMENTS TO 8-K FILED ON MAY 14, 2018 24 Jul 2018 11 May 2018 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 02 Jul 2018 30 Jun 2018
4 Open 4 document View SEC filing for 4 FORM 4 02 Jul 2018 30 Jun 2018
4 Open 4 document View SEC filing for 4 FORM 4 02 Jul 2018 30 Jun 2018
4 Open 4 document View SEC filing for 4 FORM 4 02 Jul 2018 30 Jun 2018
4 Open 4 document View SEC filing for 4 FORM 4 02 Jul 2018 30 Jun 2018
4 Open 4 document View SEC filing for 4 FORM 4 02 Jul 2018 30 Jun 2018
8-K Open 8-K document View SEC filing for 8-K GSE SYSTEMS INC 2018 ANNUAL MEETING RESULTS, AMENDMENTS TO ARTICLES OF INC, IR P 15 Jun 2018 12 Jun 2018 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 13 Jun 2018 12 Jun 2018
3 Open 3 document View SEC filing for 3 FORM 3 13 Jun 2018 12 Jun 2018
4 Open 4 document View SEC filing for 4 FORM 4 13 Jun 2018 12 Jun 2018
4 Open 4 document View SEC filing for 4 FORM 4 13 Jun 2018 12 Jun 2018
4 Open 4 document View SEC filing for 4 FORM 4 13 Jun 2018 12 Jun 2018
DEFA14A Open DEFA14A document View SEC filing for DEFA14A 2018 PROXY CARD 11 Jun 2018 001-14785
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q GSE SYSTEMS INC FORM 10-Q Q1 2018 15 May 2018 31 Mar 2018 001-14785
8-K Open 8-K document View SEC filing for 8-K FORM 8-K - Q1 2018 EARNINGS RELEASE 15 May 2018 31 Mar 2018 001-14785
8-K Open 8-K document View SEC filing for 8-K GSE SYSTEMS, INC. TRUE NORTH AND CREDIT AGREEMENTS 14 May 2018 14 May 2018 001-14785
DEFA14A Open DEFA14A document View SEC filing for DEFA14A GSE SYSTEMS 2018 PROXY NOTICE 30 Apr 2018 001-14785
DEF 14A Open DEF 14A document View SEC filing for DEF 14A GSE SYSTEMS, INC. 2018 PROXY STATEMENT 30 Apr 2018 30 Apr 2018 001-14785
CERT Open CERT document View SEC filing for CERT 27 Apr 2018 001-14785
25 Open 25 document View SEC filing for 25 NOTIFICATION OF REMOVAL FROM LISTING AND/OR REGISTRATION UNDER SECTION 12(B) 27 Apr 2018 001-14785
8-A12B Open 8-A12B document View SEC filing for 8-A12B FORM 8-A GSE SYSTEMS, INC. NASDAQ REGISTRATION 12(B) 27 Apr 2018 001-14785
8-K Open 8-K document View SEC filing for 8-K GSE SYSTEMS, INC. TO BEGIN TRADING ON NASDAQ CAPITAL MARKET 19 Apr 2018 19 Apr 2018 001-14785
PRE 14A Open PRE 14A document View SEC filing for PRE 14A GSE SYSTEMS, INC. PRELIMINARY PROXY STATEMENT 16 Apr 2018 12 Jun 2018 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 02 Apr 2018 31 Mar 2018
4 Open 4 document View SEC filing for 4 FORM 4 02 Apr 2018 31 Mar 2018
4 Open 4 document View SEC filing for 4 FORM 4 02 Apr 2018 31 Mar 2018
4 Open 4 document View SEC filing for 4 FORM 4 02 Apr 2018 31 Mar 2018
4 Open 4 document View SEC filing for 4 FORM 4 02 Apr 2018 31 Mar 2018
4 Open 4 document View SEC filing for 4 FORM 4 02 Apr 2018 31 Mar 2018
4 Open 4 document View SEC filing for 4 FORM 4 02 Apr 2018 31 Mar 2018
8-K Open 8-K document View SEC filing for 8-K GSE SYSTEMS, INC. FORM 8-K QUINN AND LEWIS DEPARTURE 23 Mar 2018 23 Mar 2018 001-14785
3 Open 3 document View SEC filing for 3 FORM 3 23 Mar 2018 20 Mar 2018
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K GSE SYSTEMS, INC. - 2017 - 10-K 16 Mar 2018 31 Dec 2017 001-14785
8-K Open 8-K document View SEC filing for 8-K FORM 8-K: EARNINGS RELEASE - FY 2017 15 Mar 2018 31 Dec 2017 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 02 Mar 2018 28 Feb 2018
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 14 Feb 2018 005-45371
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 13G/A 13 Feb 2018 005-45371
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SC 13G/A 13 Feb 2018 005-45371
4 Open 4 document View SEC filing for 4 FORM 4 03 Jan 2018 31 Dec 2017
4 Open 4 document View SEC filing for 4 FORM 4 03 Jan 2018 31 Dec 2017
4 Open 4 document View SEC filing for 4 FORM 4 03 Jan 2018 31 Dec 2017
4 Open 4 document View SEC filing for 4 FORM 4 03 Jan 2018 31 Dec 2017
4 Open 4 document View SEC filing for 4 FORM 4 03 Jan 2018 31 Dec 2017
4 Open 4 document View SEC filing for 4 FORM 4 03 Jan 2018 31 Dec 2017
4 Open 4 document View SEC filing for 4 FORM 4 03 Jan 2018 01 Jan 2018
4 Open 4 document View SEC filing for 4 FORM 4 03 Jan 2018 01 Jan 2018
8-K Open 8-K document View SEC filing for 8-K INTERNATIONAL RESTRUCTURING 27 Dec 2017 27 Dec 2017 001-14785
8-K/A Open 8-K/A document View SEC filing for 8-K/A 30 Nov 2017 20 Sep 2017 001-14785
8-K Open 8-K document View SEC filing for 8-K FORM 8-K GVP UPDATED INVESTOR PRESENTATION DATED NOVEMBER 29, 2017 29 Nov 2017 29 Nov 2017 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 16 Nov 2017 15 Nov 2017
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q GSE SYSTEMS INC FORM 10-Q 1Q17 14 Nov 2017 30 Sep 2017 001-14785
8-K Open 8-K document View SEC filing for 8-K EARNINGS RELEASE - Q3 2017 14 Nov 2017 30 Sep 2017 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 02 Oct 2017 30 Sep 2017
4 Open 4 document View SEC filing for 4 FORM 4 02 Oct 2017 30 Sep 2017
4 Open 4 document View SEC filing for 4 FORM 4 02 Oct 2017 30 Sep 2017
4 Open 4 document View SEC filing for 4 FORM 4 02 Oct 2017 30 Sep 2017
4 Open 4 document View SEC filing for 4 FORM 4 02 Oct 2017 30 Sep 2017
4 Open 4 document View SEC filing for 4 FORM 4 02 Oct 2017 30 Sep 2017
8-K Open 8-K document View SEC filing for 8-K ENTRY INTO A MATERIAL DEFINITIVE AGREEMENT 20 Sep 2017 20 Sep 2017 001-14785
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q GSE SYSTEMS INC FORM 10-Q 1Q17 14 Aug 2017 30 Jun 2017 001-14785
8-K Open 8-K document View SEC filing for 8-K EARNINGS RELEASE - Q2 2017 14 Aug 2017 30 Jun 2017 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 05 Jul 2017 30 Jun 2017
4 Open 4 document View SEC filing for 4 FORM 4 05 Jul 2017 30 Jun 2017
4 Open 4 document View SEC filing for 4 FORM 4 05 Jul 2017 30 Jun 2017
4 Open 4 document View SEC filing for 4 FORM 4 05 Jul 2017 30 Jun 2017
4 Open 4 document View SEC filing for 4 FORM 4 05 Jul 2017 30 Jun 2017
8-K Open 8-K document View SEC filing for 8-K GSE FORM 8-K RESULTS OF ANNUAL MEETING 06-12-2017 16 Jun 2017 12 Jun 2017 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 14 Jun 2017 12 Jun 2017
3 Open 3 document View SEC filing for 3 FORM 3 14 Jun 2017 12 Jun 2017
4 Open 4 document View SEC filing for 4 FORM 4 14 Jun 2017 12 Jun 2017
4 Open 4 document View SEC filing for 4 FORM 4 14 Jun 2017 12 Jun 2017
4 Open 4 document View SEC filing for 4 FORM 4 13 Jun 2017 12 Jun 2017
4 Open 4 document View SEC filing for 4 FORM 4 13 Jun 2017 12 Jun 2017
4 Open 4 document View SEC filing for 4 FORM 4 13 Jun 2017 12 Jun 2017
4 Open 4 document View SEC filing for 4 FORM 4 09 Jun 2017 07 Jun 2017
4 Open 4 document View SEC filing for 4 FORM 4 07 Jun 2017 07 Jun 2017
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q GSE SYSTEMS INC FORM 10-Q 1Q17 15 May 2017 31 Mar 2017 001-14785
8-K Open 8-K document View SEC filing for 8-K GSE SYSTEMS FORM 8-K 1Q17 RESULTS OF OPERATIONS 15 May 2017 15 May 2017 001-14785
DEFA14A Open DEFA14A document View SEC filing for DEFA14A GSE SYSTEMS, INC 2017 PROXY NOTICE 25 Apr 2017 001-14785
DEF 14A Open DEF 14A document View SEC filing for DEF 14A GSE SYSTEMS 2017 PROXY STATEMENT 25 Apr 2017 21 Apr 2017 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 04 Apr 2017 31 Mar 2017
4 Open 4 document View SEC filing for 4 FORM 4 04 Apr 2017 31 Mar 2017
4 Open 4 document View SEC filing for 4 FORM 4 04 Apr 2017 31 Mar 2017
4 Open 4 document View SEC filing for 4 FORM 4 04 Apr 2017 31 Mar 2017
4 Open 4 document View SEC filing for 4 FORM 4 04 Apr 2017 31 Mar 2017
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A AMENDMENT NO. 6 TO SCHEDULE 13G 31 Mar 2017 005-45371
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K GSE SYSTEMS, INC. - 2015 - 10-K 28 Mar 2017 31 Dec 2016 001-14785
8-K Open 8-K document View SEC filing for 8-K FORM 8-K GVP INVESTOR PRESENTATION MARCH 14, 2017 13 Mar 2017 13 Mar 2017 001-14785
8-K Open 8-K document View SEC filing for 8-K GVP FORM 8-K FY16 EARNINGS 09 Mar 2017 09 Mar 2017 001-14785
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SC 13G/A 27 Feb 2017 005-45371
SC 13G Open SC 13G document View SEC filing for SC 13G 14 Feb 2017 005-45371
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SCHEDULE 13G/A 10 Feb 2017 005-45371
4 Open 4 document View SEC filing for 4 FORM 4 25 Jan 2017 23 Jan 2017
4 Open 4 document View SEC filing for 4 FORM 4 25 Jan 2017 23 Jan 2017
4 Open 4 document View SEC filing for 4 FORM 4 25 Jan 2017 23 Jan 2017
4 Open 4 document View SEC filing for 4 FORM 4 25 Jan 2017 23 Jan 2017
4 Open 4 document View SEC filing for 4 FORM 4 25 Jan 2017 23 Jan 2017
4 Open 4 document View SEC filing for 4 FORM 4 25 Jan 2017 23 Jan 2017
4 Open 4 document View SEC filing for 4 FORM 4 04 Jan 2017 01 Jan 2017
4 Open 4 document View SEC filing for 4 FORM 4 04 Jan 2017 01 Jan 2017
4 Open 4 document View SEC filing for 4 FORM 4 04 Jan 2017 01 Jan 2017
4 Open 4 document View SEC filing for 4 FORM 4 04 Jan 2017 01 Jan 2017
4 Open 4 document View SEC filing for 4 FORM 4 04 Jan 2017 01 Jan 2017
4 Open 4 document View SEC filing for 4 FORM 4 04 Jan 2017 01 Jan 2017
4 Open 4 document View SEC filing for 4 FORM 4 04 Jan 2017 01 Jan 2017
4 Open 4 document View SEC filing for 4 FORM 4 04 Jan 2017 01 Jan 2017
4 Open 4 document View SEC filing for 4 FORM 4 04 Jan 2017 31 Dec 2016
8-K Open 8-K document View SEC filing for 8-K GSE SYSTEMS NEW CREDIT FACILITY FORM 8-K 04 Jan 2017 04 Jan 2017 001-14785
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 03 Jan 2017
CORRESP Open CORRESP document View SEC filing for CORRESP 22 Dec 2016
4 Open 4 document View SEC filing for 4 FORM 4 14 Dec 2016 12 Dec 2016
8-K Open 8-K document View SEC filing for 8-K GSE SYSTEMS, INC. FORM 8-K DEPARTURE OF DIRECTORS OR CERTAIN OFFICERS; ELECTION 14 Dec 2016 08 Dec 2016 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 13 Dec 2016 13 Dec 2016
4 Open 4 document View SEC filing for 4 FORM 4 12 Dec 2016 08 Dec 2016
4 Open 4 document View SEC filing for 4 FORM 4 12 Dec 2016 08 Dec 2016
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 08 Dec 2016
8-K Open 8-K document View SEC filing for 8-K GVP FORM 8-K 3Q16 FINANCIAL RESULTS PRESS RELEASE 16 Nov 2016 16 Nov 2016 001-14785
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q GSE SYSTEMS INC FORM 10-Q 1Q16 14 Nov 2016 30 Sep 2016 001-14785
SC 13G Open SC 13G document View SEC filing for SC 13G SCHEDULE 13G 27 Oct 2016 005-45371
4 Open 4 document View SEC filing for 4 FORM 4 04 Oct 2016 30 Sep 2016
4 Open 4 document View SEC filing for 4 FORM 4 21 Sep 2016 19 Sep 2016
4 Open 4 document View SEC filing for 4 FORM 4 21 Sep 2016 19 Sep 2016
4 Open 4 document View SEC filing for 4 FORM 4 21 Sep 2016 19 Sep 2016
4 Open 4 document View SEC filing for 4 FORM 4 21 Sep 2016 19 Sep 2016
4 Open 4 document View SEC filing for 4 FORM 4 21 Sep 2016 19 Sep 2016
4 Open 4 document View SEC filing for 4 FORM 4 21 Sep 2016 19 Sep 2016
4 Open 4 document View SEC filing for 4 FORM 4 21 Sep 2016 19 Sep 2016
4 Open 4 document View SEC filing for 4 FORM 4 21 Sep 2016 19 Sep 2016
4 Open 4 document View SEC filing for 4 FORM 4 21 Sep 2016 19 Sep 2016
3 Open 3 document View SEC filing for 3 FORM 3 21 Sep 2016 14 Sep 2016
4/A Open 4/A document View SEC filing for 4/A FORM 4/A 21 Sep 2016 02 Sep 2016
4 Open 4 document View SEC filing for 4 FORM 4 20 Sep 2016 02 Sep 2016
8-K Open 8-K document View SEC filing for 8-K AMENDMENTS TO ARTICLES OF INCORPORATION OR BYLAWS; CHANGE IN FISCAL YEAR. 16 Sep 2016 16 Sep 2016 001-14785
8-K Open 8-K document View SEC filing for 8-K FORM 8-K GVP INVESTOR PRESENTATION SEPTEMBER 15, 2016 15 Sep 2016 13 Sep 2016 001-14785
8-K Open 8-K document View SEC filing for 8-K FORM 8-K APPOINTMENT OF CERTAIN DIRECTORS OR OFFICERS 15 Sep 2016 14 Sep 2016 001-14785
4/A Open 4/A document View SEC filing for 4/A FORM 4/A 02 Sep 2016 30 Jun 2016
8-K Open 8-K document View SEC filing for 8-K FORM 8-K SORRELLS AGREEMENT 19 Aug 2016 17 Aug 2016 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 17 Aug 2016 15 Aug 2016
8-K Open 8-K document View SEC filing for 8-K GVP FORM 8-K 2Q16 EARNINGS 15 Aug 2016 15 Aug 2016 001-14785
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q GSE SYSTEMS INC FORM 10-Q 1Q16 15 Aug 2016 30 Jun 2016 001-14785
3 Open 3 document View SEC filing for 3 FORM 3 08 Aug 2016 08 Aug 2016
8-K Open 8-K document View SEC filing for 8-K FORM 8-K APPOINTMENT OF CERTAIN DIRECTORS OR OFFICERS 08 Aug 2016 08 Aug 2016 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 05 Jul 2016 01 Jul 2016
3 Open 3 document View SEC filing for 3 FORM 3 05 Jul 2016 01 Jul 2016
8-K Open 8-K document View SEC filing for 8-K DEPARTURE OF DIRECTORS OR CERTAIN OFFICERS; ELECTION OF DIRECTORS; APPOINTMENT O 05 Jul 2016 05 Jul 2016 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 01 Jul 2016 01 Jul 2016
4 Open 4 document View SEC filing for 4 FORM 4 01 Jul 2016 01 Jul 2016
4 Open 4 document View SEC filing for 4 FORM 4 01 Jul 2016 01 Jul 2016
4 Open 4 document View SEC filing for 4 FORM 4 01 Jul 2016 01 Jul 2016
4 Open 4 document View SEC filing for 4 FORM 4 01 Jul 2016 01 Jul 2016
4 Open 4 document View SEC filing for 4 FORM 4 01 Jul 2016 01 Jul 2016
4 Open 4 document View SEC filing for 4 FORM 4 01 Jul 2016 01 Jul 2016
4 Open 4 document View SEC filing for 4 FORM 4 01 Jul 2016 01 Jul 2016
8-K Open 8-K document View SEC filing for 8-K DEPARTURE OF DIRECTORS OR CERTAIN OFFICERS; ELECTION OF DIRECTORS; APPOINTMENT O 01 Jul 2016 01 Jul 2016 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 30 Jun 2016 30 Jun 2016
S-8 Open S-8 document View SEC filing for S-8 GSE SYSTEMS 2016 REGISTRATION STATEMENT ADDITIONAL SHARES FOR 1995 PLAN 24 Jun 2016 333-212241
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K GSE SYSTEMS JOINS RUSSELL MICROCAP INDEX 16 Jun 2016 16 Jun 2016 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 15 Jun 2016 14 Jun 2016
8-K Open 8-K document View SEC filing for 8-K FORM 8-K RESULTS OF GSE SYSTEMS, INC. 2016 ANNUAL SHAREHOLDERS MEETING 10 Jun 2016 07 Jun 2016 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 01 Jun 2016 27 May 2016
4/A Open 4/A document View SEC filing for 4/A FORM 4/A 27 May 2016 25 May 2016
4 Open 4 document View SEC filing for 4 FORM 4 27 May 2016 31 Mar 2016
DEFA14A Open DEFA14A document View SEC filing for DEFA14A SUPPLEMENT TO THE PROXY STATEMENT FOR THE ANNUAL MEETING OF STOCKHOLDERS TO BE H 27 May 2016 001-14785
4/A Open 4/A document View SEC filing for 4/A FORM 4/A 27 May 2016 27 May 2016
4/A Open 4/A document View SEC filing for 4/A FORM 4/A 27 May 2016 23 May 2016
4 Open 4 document View SEC filing for 4 FORM 4 26 May 2016 25 May 2016
4 Open 4 document View SEC filing for 4 FORM 4 26 May 2016 24 May 2016
4 Open 4 document View SEC filing for 4 FORM 4 25 May 2016 23 May 2016
4 Open 4 document View SEC filing for 4 FORM 4 23 May 2016 20 May 2016
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K GSE SYSTEMS FORM 8-K 1Q16 RESULTS OF OPERATIONS 16 May 2016 16 May 2016 001-14785
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q GSE SYSTEMS INC FORM 10-Q 1Q16 16 May 2016 31 Mar 2016 001-14785
DEFA14A Open DEFA14A document View SEC filing for DEFA14A GSE SYSTEMS 2016 DEFA14A 27 Apr 2016 001-14785
DEF 14A Open DEF 14A document View SEC filing for DEF 14A GSE SYSTEMS 2016 PROXY STATEMENT 27 Apr 2016 31 Dec 2015 001-14785
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K GSE SYSTEMS, INC. - 2015 - 10-K 25 Mar 2016 31 Dec 2015 001-14785
3 Open 3 document View SEC filing for 3 FORM 3 24 Mar 2016 22 Mar 2016
4 Open 4 document View SEC filing for 4 FORM 4 22 Mar 2016 21 Mar 2016
3 Open 3 document View SEC filing for 3 FORM 3 22 Mar 2016 21 Mar 2016
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K GVP FORM 8-K PRESS RELEASE 22 Mar 2016 22 Mar 2016 001-14785
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K GVP FORM 8-K CONTRACT PRESS RELEASE 17 Mar 2016 17 Mar 2016 001-14785
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K GSE SYSTEMS, INC. 12-21-2015 FINANCIAL RESULTS PRESS RELEASE 15 Mar 2016 15 Mar 2016 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 03 Mar 2016 01 Mar 2016
4 Open 4 document View SEC filing for 4 FORM 4 03 Mar 2016 01 Mar 2016
4 Open 4 document View SEC filing for 4 FORM 4 03 Mar 2016 01 Mar 2016
4 Open 4 document View SEC filing for 4 FORM 4 03 Mar 2016 01 Mar 2016
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SC 13G/A NO.5 10 Feb 2016 005-45371
4 Open 4 document View SEC filing for 4 FORM 4 05 Feb 2016 01 Feb 2016
3 Open 3 document View SEC filing for 3 FORM 3 05 Feb 2016 01 Feb 2016
8-K Open 8-K document View SEC filing for 8-K GVP LOUDERMILK - FORM 8-K 012816 28 Jan 2016 28 Jan 2016 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 26 Jan 2016 22 Jan 2016
SC 13D/A Open SC 13D/A document View SEC filing for SC 13D/A SCHEDULE 13D AMENDMENT NO. 1 26 Jan 2016 005-45371
SC 13D Open SC 13D document View SEC filing for SC 13D SC 13D 17 Dec 2015 005-45371
4 Open 4 document View SEC filing for 4 FORM 4 16 Dec 2015 14 Dec 2015
4 Open 4 document View SEC filing for 4 FORM 4 16 Dec 2015 14 Dec 2015
4 Open 4 document View SEC filing for 4 FORM 4 14 Dec 2015 11 Dec 2015
4/A Open 4/A document View SEC filing for 4/A FORM 4/A 14 Dec 2015 02 Dec 2015
4/A Open 4/A document View SEC filing for 4/A FORM 4/A 14 Dec 2015 02 Dec 2015
4/A Open 4/A document View SEC filing for 4/A FORM 4/A 14 Dec 2015 20 Nov 2015
4/A Open 4/A document View SEC filing for 4/A FORM 4/A 14 Dec 2015 20 Nov 2015
4/A Open 4/A document View SEC filing for 4/A FORM 4/A 14 Dec 2015 25 Nov 2015
4 Open 4 document View SEC filing for 4 FORM 4 04 Dec 2015 02 Dec 2015
4 Open 4 document View SEC filing for 4 FORM 4 04 Dec 2015 02 Dec 2015
3 Open 3 document View SEC filing for 3 FORM 3 04 Dec 2015 03 Jun 2015
4 Open 4 document View SEC filing for 4 FORM 4 03 Dec 2015 01 Dec 2015
3 Open 3 document View SEC filing for 3 FORM 3 03 Dec 2015 01 Dec 2015
4 Open 4 document View SEC filing for 4 FORM 4 30 Nov 2015 25 Nov 2015
4 Open 4 document View SEC filing for 4 FORM 4 24 Nov 2015 20 Nov 2015
4 Open 4 document View SEC filing for 4 FORM 4 24 Nov 2015 20 Nov 2015
SC 13D/A Open SC 13D/A document View SEC filing for SC 13D/A SC 13D/A 24 Nov 2015 005-45371
4 Open 4 document View SEC filing for 4 FORM 4 19 Nov 2015 17 Nov 2015
8-K Open 8-K document View SEC filing for 8-K GSE SYSTEMS FORM 8-K 3Q15 FINANCIAL RESULTS 12 Nov 2015 12 Nov 2015 001-14785
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q GSE SYSTEMS INC FORM 10-Q 3Q15 12 Nov 2015 30 Sep 2015 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 06 Nov 2015 30 Oct 2015
4 Open 4 document View SEC filing for 4 FORM 4 06 Nov 2015 30 Oct 2015
8-K Open 8-K document View SEC filing for 8-K DEPARTURE OF DIRECTORS OR CERTAIN OFFICERS 04 Nov 2015 04 Nov 2015 001-14785
8-K Open 8-K document View SEC filing for 8-K GVP FORM 8-K DEPARTURE OF DIRECTORS OR CERTAIN OFFICERS 01 Oct 2015 01 Oct 2015 001-14785
8-K Open 8-K document View SEC filing for 8-K FORM 8-K GVP RESTRUCTURING 28 Sep 2015 22 Sep 2015 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 25 Aug 2015 25 Aug 2015
8-K Open 8-K document View SEC filing for 8-K GVP SORRELLS - FORM 8-K 082515 25 Aug 2015 25 Aug 2015 001-14785
8-K Open 8-K document View SEC filing for 8-K GSE SYSTEMS FORM 8-K 2Q15 FINANCIAL RESULTS 13 Aug 2015 13 Aug 2015 001-14785
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q GSE SYSTEMS INC FORM 10-Q 2Q15 13 Aug 2015 30 Jun 2015 001-14785
3 Open 3 document View SEC filing for 3 FORM 3 06 Aug 2015 03 Aug 2015
4 Open 4 document View SEC filing for 4 FORM 4 05 Aug 2015 03 Aug 2015
8-K Open 8-K document View SEC filing for 8-K FORM 8-K APPOINTMENT OF KYLE LOUDERMILK 31 Jul 2015 31 Jul 2015 001-14785
8-K Open 8-K document View SEC filing for 8-K GSE 060315 FORM 8-K RESULTS OF ANNUAL SHAREHOLDERS MEETING 08 Jun 2015 03 Jun 2015 001-14785
SC 13D/A Open SC 13D/A document View SEC filing for SC 13D/A SC 13D/A 27 May 2015 005-45371
8-K Open 8-K document View SEC filing for 8-K 14 May 2015 14 May 2015 001-14785
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q GSE SYSTEMS INC FORM 10-Q 1Q15 14 May 2015 31 Mar 2015 001-14785
DEF 14A Open DEF 14A document View SEC filing for DEF 14A GSE SYSTEMS 2015 PROXY STATEMENT 22 Apr 2015 31 Dec 2014 001-14785
8-K Open 8-K document View SEC filing for 8-K 13 Apr 2015 13 Apr 2015 001-14785
8-K Open 8-K document View SEC filing for 8-K GSE 12-31-2014 EARNINGS AND EMPLOYMENT AGREEMENTS 19 Mar 2015 18 Mar 2015 001-14785
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K GSE SYSTEMS, INC. - 2014 - 10-K 19 Mar 2015 31 Dec 2014 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 04 Mar 2015 02 Mar 2015
4 Open 4 document View SEC filing for 4 FORM 4 04 Mar 2015 02 Mar 2015
4 Open 4 document View SEC filing for 4 FORM 4 04 Mar 2015 02 Mar 2015
4 Open 4 document View SEC filing for 4 FORM 4 04 Mar 2015 02 Mar 2015
4 Open 4 document View SEC filing for 4 FORM 4 04 Mar 2015 02 Mar 2015
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SCHEDULE 13G AMENDMENT NO. 4 17 Feb 2015 005-45371
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SC 13G/A 09 Feb 2015 005-45371
8-K Open 8-K document View SEC filing for 8-K AMENDMENTS TO ARTICLES OF INCORPORATION OR BYLAWS; CHANGE IN FISCAL YEAR 04 Feb 2015 04 Feb 2015 001-14785
SC 13G Open SC 13G document View SEC filing for SC 13G NONE 30 Jan 2015 005-45371
8-K/A Open 8-K/A document View SEC filing for 8-K/A FORM 8-K/A 29 Jan 2015 14 Nov 2014 001-14785
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A MARK LEONARD SCHEDULE 13G AMENDMENT NO 1 06 Jan 2015 005-45371
SC 13D Open SC 13D document View SEC filing for SC 13D SC 13D 30 Dec 2014 005-45371
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SC 13G/A 03 Dec 2014 005-45371
8-K Open 8-K document View SEC filing for 8-K GSE SYSTEMS FORM 8-K 3Q14 17 Nov 2014 14 Nov 2014 001-14785
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q GSE SYSTEMS INC FORM 10-Q 2Q14 14 Nov 2014 30 Sep 2014 001-14785
SC 13G Open SC 13G document View SEC filing for SC 13G SCHEDULE 13G - MARK LEONARD 18 Aug 2014 005-45371
8-K Open 8-K document View SEC filing for 8-K GSE SYSTEMS FORM 8-K 2Q14 RESULTS PRESS RELEASE 15 Aug 2014 15 Aug 2014 001-14785
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q GSE SYSTEMS INC FORM 10-Q 2Q14 14 Aug 2014 30 Jun 2014 001-14785
SC 13G Open SC 13G document View SEC filing for SC 13G SC 13G 23 Jul 2014 005-45371
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A JULY 11, 2014 11 Jul 2014 005-45371
SC 13G Open SC 13G document View SEC filing for SC 13G NONE 11 Jul 2014 005-45371
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 1Q14 PRESS RELEASE 15 May 2014 31 Mar 2014 001-14785
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q GSE SYSTEMS INC FORM 10-Q 1Q14 15 May 2014 31 Mar 2014 001-14785
DEF 14A Open DEF 14A document View SEC filing for DEF 14A GSE SYSTEMS 2014 PROXY STATEMENT 29 Apr 2014 31 Dec 2013 001-14785
8-K Open 8-K document View SEC filing for 8-K GSE SYSTEMS FORM 8-K 26 Mar 2014 26 Mar 2014 001-14785
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 26 Mar 2014 31 Dec 2013 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 12 Mar 2014 03 Mar 2014
4 Open 4 document View SEC filing for 4 FORM 4 12 Mar 2014 03 Mar 2014
4 Open 4 document View SEC filing for 4 FORM 4 12 Mar 2014 03 Mar 2014
4 Open 4 document View SEC filing for 4 FORM 4 12 Mar 2014 03 Mar 2014
4 Open 4 document View SEC filing for 4 FORM 4 12 Mar 2014 03 Mar 2014
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SCHEDULE 13G AMENDMENT NO. 3 14 Feb 2014 005-45371
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A FORM SC 13G/A 12 Feb 2014 005-45371
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A FEBRUARY 4, 2014 06 Feb 2014 005-45371
8-K Open 8-K document View SEC filing for 8-K GSE FORM 8-K 3Q13 PRESS RELEASE 14 Nov 2013 30 Sep 2013 001-14785
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q GSE SYSTEMS FORM 10-Q 3Q13 14 Nov 2013 30 Sep 2013 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 11 Sep 2013 06 Sep 2013
8-K Open 8-K document View SEC filing for 8-K GSE SYSTEMS FORM 8-K 2Q13 RESULTS PRESS RELEASE 14 Aug 2013 09 Aug 2013 001-14785
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q GSE SYSTEMS FORM 10-Q 2Q13 14 Aug 2013 09 Aug 2013 001-14785
8-K Open 8-K document View SEC filing for 8-K FORM 8-K GSE ANNUAL MEETING RESULTS 13 Jun 2013 12 Jun 2013 001-14785
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 1Q13 15 May 2013 31 Mar 2013 001-14785
8-K Open 8-K document View SEC filing for 8-K FORM 8-K GVP 1Q2013 14 May 2013 31 Mar 2013 001-14785
DEF 14A Open DEF 14A document View SEC filing for DEF 14A GSE SYSTEMS 2013 PROXY STATEMENT 30 Apr 2013 30 Apr 2013 001-14785
8-K Open 8-K document View SEC filing for 8-K GSE FORM 8-K 23 Apr 2013 17 Apr 2013 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 29 Mar 2013 07 Mar 2013
4 Open 4 document View SEC filing for 4 FORM 4 18 Mar 2013 14 Mar 2013
4 Open 4 document View SEC filing for 4 FORM 4 14 Mar 2013 07 Mar 2013
4 Open 4 document View SEC filing for 4 FORM 4 14 Mar 2013 07 Mar 2013
4 Open 4 document View SEC filing for 4 FORM 4 14 Mar 2013 07 Mar 2013
4 Open 4 document View SEC filing for 4 FORM 4 14 Mar 2013 07 Mar 2013
4 Open 4 document View SEC filing for 4 FORM 4 14 Mar 2013 07 Mar 2013
8-K Open 8-K document View SEC filing for 8-K FORM 8-K GSE SYSTEMS FY12 RESULTS OF OPERATIONS 11 Mar 2013 11 Mar 2013 001-14785
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K GSE SYSTEMS 2012 FORM 10-K 11 Mar 2013 31 Dec 2012 001-14785
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A GVP_123112 13 Feb 2013 005-45371
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SCHEDULE 13G/A 08 Feb 2013 005-45371
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SC 13G/A 06 Feb 2013 005-45371
SC 13G Open SC 13G document View SEC filing for SC 13G JANUARY 14, 2013 14 Jan 2013 005-45371
3 Open 3 document View SEC filing for 3 FORM 3 02 Jan 2013 01 Jan 2013
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 27 Dec 2012 20 Dec 2012 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 20 Dec 2012 14 Dec 2012
4 Open 4 document View SEC filing for 4 FORM 4 20 Dec 2012 14 Dec 2012
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 3Q12 FINANCIAL RESULTS 14 Nov 2012 30 Sep 2012 001-14785
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 3Q12 14 Nov 2012 30 Sep 2012 001-14785
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 04 Oct 2012
CORRESP Open CORRESP document View SEC filing for CORRESP 21 Sep 2012
4 Open 4 document View SEC filing for 4 FORM 4 18 Sep 2012 13 Sep 2012
4 Open 4 document View SEC filing for 4 FORM 4 13 Sep 2012 11 Sep 2012
4 Open 4 document View SEC filing for 4 FORM 4 10 Sep 2012 06 Sep 2012
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 07 Sep 2012
4 Open 4 document View SEC filing for 4 FORM 4 29 Aug 2012 27 Aug 2012
4 Open 4 document View SEC filing for 4 FORM 4 29 Aug 2012 28 Aug 2012
S-8 Open S-8 document View SEC filing for S-8 GSE SYSTEMS S-8 REGISTRATION STATEMENT 20 Aug 2012 333-183427
8-K Open 8-K document View SEC filing for 8-K GSE SYSTEMS FORM 8-K 2Q12 EARNINGS PRESS RELEASE 13 Aug 2012 13 Aug 2012 001-14785
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q GSE SYSTEMS FORM 10-Q 2Q12 13 Aug 2012 30 Jun 2012 001-14785
SC 13G Open SC 13G document View SEC filing for SC 13G SCHEDULE 13G 26 Jun 2012 005-45371
8-K Open 8-K document View SEC filing for 8-K FORM 8-K GSE SHAREHOLDERS MEETING RESULTS 15 Jun 2012 15 Jun 2012 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 21 May 2012 17 May 2012
4 Open 4 document View SEC filing for 4 FORM 4 21 May 2012 17 May 2012
4 Open 4 document View SEC filing for 4 FORM 4 21 May 2012 17 May 2012
4 Open 4 document View SEC filing for 4 FORM 4 21 May 2012 17 May 2012
4 Open 4 document View SEC filing for 4 FORM 4 21 May 2012 17 May 2012
4 Open 4 document View SEC filing for 4 FORM 4 21 May 2012 17 May 2012
SC 13D/A Open SC 13D/A document View SEC filing for SC 13D/A SC 13D/A 18 May 2012 005-45371
4 Open 4 document View SEC filing for 4 MAIN DOCUMENT DESCRIPTION 17 May 2012 15 May 2012
8-K Open 8-K document View SEC filing for 8-K GVP FORM 8-K 1Q12 EARNINGS 15 May 2012 15 May 2012 001-14785
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q GSE SYSTEMS FORM 10-Q 1Q12 15 May 2012 09 May 2012 001-14785
4 Open 4 document View SEC filing for 4 MAIN DOCUMENT DESCRIPTION 14 May 2012 10 May 2012
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A GVP 04302012 A2 09 May 2012 005-45371
DEFR14A Open DEFR14A document View SEC filing for DEFR14A GSE 2012 REVISED PROXY STATEMENT 04 May 2012 001-14785
DEF 14A Open DEF 14A document View SEC filing for DEF 14A GSE 2012 PROXY STATEMENT 30 Apr 2012 30 Apr 2012 001-14785
3 Open 3 document View SEC filing for 3 MAIN DOCUMENT DESCRIPTION 25 Apr 2012 16 Apr 2012
SC 13D/A Open SC 13D/A document View SEC filing for SC 13D/A SC 13D/A 20 Apr 2012 005-45371
4/A Open 4/A document View SEC filing for 4/A PRIMARY DOCUMENT 19 Apr 2012 15 Mar 2012
SC 13D/A Open SC 13D/A document View SEC filing for SC 13D/A SCHEDULE 13D/A 19 Apr 2012 005-45371
5/A Open 5/A document View SEC filing for 5/A PRIMARY DOCUMENT 30 Mar 2012 31 Dec 2011
5 Open 5 document View SEC filing for 5 PRIMARY DOCUMENT 30 Mar 2012 31 Dec 2011
5 Open 5 document View SEC filing for 5 PRIMARY DOCUMENT 30 Mar 2012 31 Dec 2010
5 Open 5 document View SEC filing for 5 PRIMARY DOCUMENT 30 Mar 2012 31 Dec 2009
5 Open 5 document View SEC filing for 5 PRIMARY DOCUMENT 30 Mar 2012 31 Dec 2008
5 Open 5 document View SEC filing for 5 PRIMARY DOCUMENT 30 Mar 2012 31 Dec 2007
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 27 Mar 2012 15 Mar 2012
SC 13G Open SC 13G document View SEC filing for SC 13G SCHEDULE 13G 19 Mar 2012 005-45371
SC 13D Open SC 13D document View SEC filing for SC 13D SC 13D 14 Mar 2012 005-45371
3 Open 3 document View SEC filing for 3 FORM 3 14 Mar 2012 06 Mar 2012
8-K Open 8-K document View SEC filing for 8-K FORM 8-K SORRELLS BOD APPOINTMENT 09 Mar 2012 09 Mar 2012 001-14785
8-K Open 8-K document View SEC filing for 8-K GSE SYSTEMS FORM 8-K FY11 EARNINGS PRESS RELEASE 08 Mar 2012 08 Mar 2012 001-14785
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K GSE SYSTEMS 2011 FORM 10-K 08 Mar 2012 21 Feb 2012 001-14785
8-K Open 8-K document View SEC filing for 8-K FORM 8-K MICHAEL FELDMAN RESIGNATION 29 Feb 2012 29 Feb 2012 001-14785
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A GVP 123111 14 Feb 2012 005-45371
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A AMENDMENT NO. 1 TO SCHEDULE 13G 14 Feb 2012 005-45371
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SC 13G/A 13 Feb 2012 005-45371
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 10 Feb 2012 005-45371
8-K Open 8-K document View SEC filing for 8-K PEDERSEN RESIGNATION 06 Jan 2012 06 Jan 2012 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 01 Dec 2011 29 Nov 2011
8-K Open 8-K document View SEC filing for 8-K FORM 8-K SUSQUEHANNA BANK AGREEMENT 29 Nov 2011 29 Nov 2011 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 15 Nov 2011 11 Nov 2011
4 Open 4 document View SEC filing for 4 FORM 4 15 Nov 2011 11 Nov 2011
4 Open 4 document View SEC filing for 4 FORM 4 15 Nov 2011 11 Nov 2011
4 Open 4 document View SEC filing for 4 FORM 4 15 Nov 2011 11 Nov 2011
4 Open 4 document View SEC filing for 4 FORM 4 15 Nov 2011 11 Nov 2011
4 Open 4 document View SEC filing for 4 FORM 4 15 Nov 2011 11 Nov 2011
4 Open 4 document View SEC filing for 4 FORM 4 15 Nov 2011 11 Nov 2011
8-K Open 8-K document View SEC filing for 8-K FORM 8-K STOCK OPTION AWARDS 15 Nov 2011 15 Nov 2011 001-14785
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q GSE SYSTEMS 3Q11 09 Nov 2011 30 Sep 2011 001-14785
8-K Open 8-K document View SEC filing for 8-K GSE SYSTEMS FORM 8-K 3Q11 FINANCIAL RESULTS 09 Nov 2011 30 Sep 2011 001-14785
3 Open 3 document View SEC filing for 3 FORM 3 04 Nov 2011 17 Oct 2011
4 Open 4 document View SEC filing for 4 FORM 4 11 Oct 2011 18 Aug 2011
4 Open 4 document View SEC filing for 4 FORM 4 07 Oct 2011 18 Aug 2011
4 Open 4 document View SEC filing for 4 FORM 4 07 Oct 2011 18 Aug 2011
4 Open 4 document View SEC filing for 4 FORM 4 07 Oct 2011 18 Aug 2011
4 Open 4 document View SEC filing for 4 FORM 4 07 Oct 2011 18 Aug 2011
4 Open 4 document View SEC filing for 4 FORM 4 07 Oct 2011 18 Aug 2011
4 Open 4 document View SEC filing for 4 FORM 4 07 Oct 2011 18 Aug 2011
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 2Q11 09 Aug 2011 30 Jun 2011 001-14785
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 2Q11 FINANCIAL RESULTS 09 Aug 2011 30 Jun 2011 001-14785
8-K Open 8-K document View SEC filing for 8-K FORM 8-K SUBMISSION OF MATTERS TO VOTE 16 Jun 2011 16 Jun 2011 001-14785
8-K Open 8-K document View SEC filing for 8-K FORM 8-K LONG TERM INCENTIVE PLAN 01 Jun 2011 01 Jun 2011 001-14785
8-K Open 8-K document View SEC filing for 8-K GSE FORM 8-K 1Q11 PRESS RELEASE 10 May 2011 31 Mar 2011 001-14785
10-Q Open 10-Q document View SEC filing for 10-Q GSE FORM 10-Q 1Q11 10 May 2011 31 Mar 2011 001-14785
SC 13G Open SC 13G document View SEC filing for SC 13G SCHEDULE 13G 05 May 2011 005-45371
DEF 14A Open DEF 14A document View SEC filing for DEF 14A GSE 2011 PROXY STATEMENT 29 Apr 2011 29 Apr 2011 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 29 Apr 2011 28 Oct 2010
8-K/A Open 8-K/A document View SEC filing for 8-K/A FORM 8-K/A ENVISION FINANCIALS 21 Mar 2011 21 Mar 2011 001-14785
8-A12B Open 8-A12B document View SEC filing for 8-A12B SECURITIES REGISTRATION 21 Mar 2011 001-14785
8-K Open 8-K document View SEC filing for 8-K FORM 8-K STOCKHOLDERS RIGHTS 21 Mar 2011 21 Mar 2011 001-14785
8-K Open 8-K document View SEC filing for 8-K GSE FY10 EARNINGS PRESS RELEASE 14 Mar 2011 14 Mar 2011 001-14785
10-K Open 10-K document View SEC filing for 10-K GSE FORM 10K FY10 14 Mar 2011 14 Mar 2011 001-14785
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 14 Feb 2011 005-45371
SC 13G Open SC 13G document View SEC filing for SC 13G SC 13G 11 Feb 2011 005-45371
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 11 Feb 2011 005-45371
3 Open 3 document View SEC filing for 3 FORM 3 10 Feb 2011 03 Feb 2011
8-K Open 8-K document View SEC filing for 8-K GSE FORM 8-K EMPLOYMENT AGREEMENTS 09 Feb 2011 09 Feb 2011 001-14785
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 09 Feb 2011 005-45371
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A BROWN ADVISORY HOLDINGS INCORPORATED 11 Jan 2011 005-45371
8-K Open 8-K document View SEC filing for 8-K GSE SYSTEMS FORM 8-K ENVISION SYSTEMS 10 Jan 2011 10 Jan 2011 001-14785
SC 13G Open SC 13G document View SEC filing for SC 13G GSE 123110 10 Jan 2011 005-45371
8-K Open 8-K document View SEC filing for 8-K FORM 8-K GSE SYSTEMS 3Q10 09 Nov 2010 08 Nov 2010 001-14785
10-Q Open 10-Q document View SEC filing for 10-Q GSE SYSTEMS FORM 10-Q 3Q10 09 Nov 2010 09 Nov 2010 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 01 Nov 2010 28 Oct 2010
4 Open 4 document View SEC filing for 4 FORM 4 01 Nov 2010 28 Oct 2010
4 Open 4 document View SEC filing for 4 FORM 4 01 Nov 2010 28 Oct 2010
4 Open 4 document View SEC filing for 4 FORM 4 01 Nov 2010 28 Oct 2010
4 Open 4 document View SEC filing for 4 FORM 4 01 Nov 2010 28 Oct 2010
8-K Open 8-K document View SEC filing for 8-K GSE ANNOUNCES EBERLE CEO 01 Nov 2010 01 Nov 2010 001-14785
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 10 Aug 2010 005-45371
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 2Q10 PRESS RELEASE 09 Aug 2010 09 Aug 2010 001-14785
10-Q Open 10-Q document View SEC filing for 10-Q GSE SYSTEMS FORM 10-Q 2Q10 09 Aug 2010 04 Aug 2010 001-14785
8-K/A Open 8-K/A document View SEC filing for 8-K/A FORM 8-K/A TAS FINANCIALS 09 Jul 2010 30 Jun 2010 001-14785
10-K/A Open 10-K/A document View SEC filing for 10-K/A FORM 10-K/A 063010 30 Jun 2010 30 Jun 2010 001-14785
4 Open 4 document View SEC filing for 4 FORM 4 17 Jun 2010 11 Jun 2010
4 Open 4 document View SEC filing for 4 FORM 4 17 Jun 2010 15 Jun 2010
4 Open 4 document View SEC filing for 4 FORM 4 16 Jun 2010 15 Jun 2010
4 Open 4 document View SEC filing for 4 FORM 4 16 Jun 2010 14 Jun 2010
4 Open 4 document View SEC filing for 4 FORM 4 15 Jun 2010 11 Jun 2010
8-K Open 8-K document View SEC filing for 8-K FORM 8-K SUBMISSION OF MATTERS TO VOTE 14 Jun 2010 09 Jun 2010 001-14785
3 Open 3 document View SEC filing for 3 FORM 3 09 Jun 2010 01 Jun 2010
4 Open 4 document View SEC filing for 4 FORM 4 08 Jun 2010 04 Jun 2010
4 Open 4 document View SEC filing for 4 FORM 4 04 Jun 2010 02 Jun 2010
4 Open 4 document View SEC filing for 4 FORM 4 04 Jun 2010 02 Jun 2010
4 Open 4 document View SEC filing for 4 FORM 4 26 May 2010 21 May 2010
4 Open 4 document View SEC filing for 4 FORM 4 25 May 2010 21 May 2010
4 Open 4 document View SEC filing for 4 FORM 4 25 May 2010 21 May 2010
4 Open 4 document View SEC filing for 4 FORM 4 25 May 2010 21 May 2010
4 Open 4 document View SEC filing for 4 FORM 4 25 May 2010 21 May 2010
4 Open 4 document View SEC filing for 4 FORM 4 25 May 2010 21 May 2010
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 1Q10 PRESS RELEASE 10 May 2010 10 May 2010 001-14785
10-Q Open 10-Q document View SEC filing for 10-Q FORM 10-Q 1Q10 10 May 2010 31 Mar 2010 001-14785
DEF 14A Open DEF 14A document View SEC filing for DEF 14A DEF 14A 2010 GSE SYSTEMS PROXY STATEMENT 30 Apr 2010 30 Apr 2010 001-14785
8-K Open 8-K document View SEC filing for 8-K FORM 8-K GSE SYSTEMS ACQUIRES TAS HOLDINGS LTD 30 Apr 2010 29 Apr 2010 001-14785
8-K Open 8-K document View SEC filing for 8-K FORM 8-K ENTRY INTO A MATERIAL AGREEMENT 30 Apr 2010 30 Apr 2010 001-14785
8-K Open 8-K document View SEC filing for 8-K BOA EXTENSION 02 Apr 2010 29 Mar 2010 001-14785
8-K Open 8-K document View SEC filing for 8-K FORM-8K-FY09 YEAR END 11 Mar 2010 31 Dec 2009 001-14785
10-K Open 10-K document View SEC filing for 10-K FORM 10-K FY09 11 Mar 2010 31 Dec 2009 001-14785
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A GSE 123109 17 Feb 2010 005-45371
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A GSE SYSTEMS 16 Feb 2010 005-45371
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 16 Feb 2010 005-45371
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 12 Feb 2010 005-45371
SC 13G Open SC 13G document View SEC filing for SC 13G 12 Feb 2010 005-45371
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 09 Feb 2010 005-45371
SC 13G Open SC 13G document View SEC filing for SC 13G SCHEDULE 13G 25 Jan 2010 005-45371
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 22 Jan 2010 005-45371

About this filer

GSE SYSTEMS INC files with the SEC under CIK 0000944480. This page aggregates EDGAR filings and related ownership activity.

Industry: Services Prepackaged Software.

See insider transactions for this issuer.

FAQ

What is a CIK?
A Central Index Key (CIK) is a unique identifier assigned by the SEC to each filer.
Why are some filings missing?
New filings appear as the SEC updates EDGAR, and older records can vary by availability.
How often is this page updated?
Updates follow new EDGAR submissions and periodic data refreshes.

Related pages