Compass Therapeutics, Inc. SEC EDGAR Filings (CIK 0001738021)

SEC EDGAR filings, ownership reports, and insider transactions for Compass Therapeutics, Inc..

Symbol
CMPX on Nasdaq
Industry
Biological Products, (No Disgnostic Substances) (Office Of Life Sciences)
Business address
80 Guest Street, Boston, MA, 02135
State of incorporation
DE
Fiscal year end
31 December
Former names
Olivia Ventures, Inc. (to 08 Jun 2020)
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Compass Therapeutics, Inc. has filed 330 SEC EDGAR filings since 30 May 2018

Latest Filings

Recent SEC filings for Compass Therapeutics, Inc. including 4, EFFECT, 8-K and more.

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open 4 document View SEC filing for 4 12 Jan 2026 09 Jan 2026
EFFECT Open EFFECT document View SEC filing for EFFECT 07 Jan 2026 333-292491
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 06 Jan 2026 06 Jan 2026 001-39696
4 Open 4 document View SEC filing for 4 05 Jan 2026 02 Jan 2026
4 Open 4 document View SEC filing for 4 05 Jan 2026 02 Jan 2026
4 Open 4 document View SEC filing for 4 05 Jan 2026 02 Jan 2026
4 Open 4 document View SEC filing for 4 05 Jan 2026 02 Jan 2026
4 Open 4 document View SEC filing for 4 05 Jan 2026 02 Jan 2026
4 Open 4 document View SEC filing for 4 05 Jan 2026 02 Jan 2026
4 Open 4 document View SEC filing for 4 05 Jan 2026 02 Jan 2026
4 Open 4 document View SEC filing for 4 05 Jan 2026 02 Jan 2026
4 Open 4 document View SEC filing for 4 05 Jan 2026 02 Jan 2026
4 Open 4 document View SEC filing for 4 05 Jan 2026 02 Jan 2026
4 Open 4 document View SEC filing for 4 05 Jan 2026 02 Jan 2026
4 Open 4 document View SEC filing for 4 05 Jan 2026 02 Jan 2026
3 Open 3 document View SEC filing for 3 05 Jan 2026 02 Jan 2026
3 Open 3 document View SEC filing for 3 05 Jan 2026 02 Jan 2026
DEL AM Open DEL AM document View SEC filing for DEL AM DEL AM 31 Dec 2025 333-292491
S-3 Open S-3 document | Open XBRL data View SEC filing for S-3 S-3 30 Dec 2025 333-292491
4 Open 4 document View SEC filing for 4 18 Nov 2025 16 Nov 2025
SCHEDULE 13G Open SCHEDULE 13G document View SEC filing for SCHEDULE 13G 14 Nov 2025 005-90878
SCHEDULE 13G/A Open SCHEDULE 13G/A document View SEC filing for SCHEDULE 13G/A 14 Nov 2025 005-90878
SCHEDULE 13G/A Open SCHEDULE 13G/A document View SEC filing for SCHEDULE 13G/A 14 Nov 2025 005-90878
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 05 Nov 2025 30 Sep 2025 001-39696
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 05 Nov 2025 05 Nov 2025 001-39696
SCHEDULE 13G Open SCHEDULE 13G document View SEC filing for SCHEDULE 13G 29 Oct 2025 005-90878
SCHEDULE 13G/A Open SCHEDULE 13G/A document View SEC filing for SCHEDULE 13G/A 21 Aug 2025 005-90878
SCHEDULE 13D/A Open SCHEDULE 13D/A document View SEC filing for SCHEDULE 13D/A 18 Aug 2025 005-90878
SCHEDULE 13D/A Open SCHEDULE 13D/A document View SEC filing for SCHEDULE 13D/A 15 Aug 2025 005-90878
SCHEDULE 13G/A Open SCHEDULE 13G/A document View SEC filing for SCHEDULE 13G/A 14 Aug 2025 005-90878
SCHEDULE 13G/A Open SCHEDULE 13G/A document View SEC filing for SCHEDULE 13G/A 14 Aug 2025 005-90878
SCHEDULE 13G/A Open SCHEDULE 13G/A document View SEC filing for SCHEDULE 13G/A 14 Aug 2025 005-90878
SCHEDULE 13G Open SCHEDULE 13G document View SEC filing for SCHEDULE 13G 13 Aug 2025 005-90878
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 13 Aug 2025 12 Aug 2025 001-39696
424B5 Open 424B5 document View SEC filing for 424B5 424B5 13 Aug 2025 333-281891
SCHEDULE 13G/A Open SCHEDULE 13G/A document View SEC filing for SCHEDULE 13G/A 12 Aug 2025 005-90878
424B5 Open 424B5 document View SEC filing for 424B5 424B5 12 Aug 2025 333-281891
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 11 Aug 2025 30 Jun 2025 001-39696
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 11 Aug 2025 11 Aug 2025 001-39696
SCHEDULE 13G/A Open SCHEDULE 13G/A document View SEC filing for SCHEDULE 13G/A 16 Jul 2025 005-90878
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 12 Jun 2025 11 Jun 2025 001-39696
4 Open 4 document View SEC filing for 4 27 May 2025 27 May 2025
SCHEDULE 13G/A Open SCHEDULE 13G/A document View SEC filing for SCHEDULE 13G/A 15 May 2025 005-90878
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 08 May 2025 31 Mar 2025 001-39696
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 08 May 2025 08 May 2025 001-39696
DEFA14A Open DEFA14A document View SEC filing for DEFA14A FORM DEFA14A 29 Apr 2025 001-39696
ARS Open ARS document View SEC filing for ARS FORM ARS 29 Apr 2025 31 Dec 2024 001-39696
DEF 14A Open DEF 14A document View SEC filing for DEF 14A DEF 14A 29 Apr 2025 11 Jun 2025 001-39696
4 Open 4 document View SEC filing for 4 11 Apr 2025 09 Apr 2025
4 Open 4 document View SEC filing for 4 11 Apr 2025 09 Apr 2025
SCHEDULE 13D/A Open SCHEDULE 13D/A document View SEC filing for SCHEDULE 13D/A 11 Apr 2025 005-90878
144 Open 144 document View SEC filing for 144 09 Apr 2025 001-39696
144 Open 144 document View SEC filing for 144 09 Apr 2025 001-39696
4 Open 4 document View SEC filing for 4 08 Apr 2025 07 Apr 2025
4 Open 4 document View SEC filing for 4 08 Apr 2025 07 Apr 2025
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 01 Apr 2025 01 Apr 2025 001-39696
S-8 Open S-8 document View SEC filing for S-8 S-8 27 Mar 2025 333-286148
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K FORM 10-K 27 Feb 2025 31 Dec 2024 001-39696
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 27 Feb 2025 27 Feb 2025 001-39696
SCHEDULE 13G Open SCHEDULE 13G document View SEC filing for SCHEDULE 13G 14 Feb 2025 005-90878
4 Open 4 document View SEC filing for 4 13 Feb 2025 11 Feb 2025
4 Open 4 document View SEC filing for 4 13 Feb 2025 11 Feb 2025
4 Open 4 document View SEC filing for 4 13 Feb 2025 11 Feb 2025
4 Open 4 document View SEC filing for 4 13 Feb 2025 11 Feb 2025
4 Open 4 document View SEC filing for 4 13 Feb 2025 11 Feb 2025
4 Open 4 document View SEC filing for 4 13 Feb 2025 11 Feb 2025
4 Open 4 document View SEC filing for 4 13 Feb 2025 11 Feb 2025
4 Open 4 document View SEC filing for 4 13 Feb 2025 11 Feb 2025
4 Open 4 document View SEC filing for 4 13 Feb 2025 11 Feb 2025
4 Open 4 document View SEC filing for 4 13 Feb 2025 11 Feb 2025
SCHEDULE 13G/A Open SCHEDULE 13G/A document View SEC filing for SCHEDULE 13G/A 12 Feb 2025 005-90878
4 Open 4 document View SEC filing for 4 11 Feb 2025 08 Feb 2025
SCHEDULE 13G Open SCHEDULE 13G document View SEC filing for SCHEDULE 13G 04 Feb 2025 005-90878
SCHEDULE 13G Open SCHEDULE 13G document View SEC filing for SCHEDULE 13G 16 Jan 2025 005-90878
4 Open 4 document View SEC filing for 4 13 Jan 2025 09 Jan 2025
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 08 Jan 2025 08 Jan 2025 001-39696
4 Open 4 document View SEC filing for 4 10 Dec 2024 09 Dec 2024
3 Open 3 document View SEC filing for 3 10 Dec 2024 09 Dec 2024
3 Open 3 document View SEC filing for 3 10 Dec 2024 09 Dec 2024
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 10 Dec 2024 09 Dec 2024 001-39696
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A JANUS CLOSEOUT 14 Nov 2024 005-90878
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 12 Nov 2024 30 Sep 2024 001-39696
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 12 Nov 2024 12 Nov 2024 001-39696
EFFECT Open EFFECT document View SEC filing for EFFECT 06 Sep 2024 333-281891
CORRESP Open CORRESP document View SEC filing for CORRESP 04 Sep 2024
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 03 Sep 2024 333-281891
S-3 Open S-3 document View SEC filing for S-3 S-3 30 Aug 2024 333-281891
4 Open 4 document View SEC filing for 4 14 Aug 2024 13 Aug 2024
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 12 Aug 2024 30 Jun 2024 001-39696
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 12 Aug 2024 12 Aug 2024 001-39696
3 Open 3 document View SEC filing for 3 09 Aug 2024 01 Aug 2024
SC 13G Open SC 13G document View SEC filing for SC 13G SC 13G 02 Aug 2024 005-90878
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 17 Jun 2024 13 Jun 2024 001-39696
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFINITIVE ADDITIONAL MATERIALS 29 May 2024 001-39696
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 28 May 2024 28 May 2024 001-39696
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 13 May 2024 31 Mar 2024 001-39696
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 13 May 2024 13 May 2024 001-39696
ARS Open ARS document View SEC filing for ARS ARS 29 Apr 2024 31 Dec 2023 001-39696
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFA14A 29 Apr 2024 001-39696
DEF 14A Open DEF 14A document View SEC filing for DEF 14A DEF 14A 29 Apr 2024 13 Jun 2024 001-39696
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 25 Apr 2024 25 Apr 2024 001-39696
SC 13D/A Open SC 13D/A document View SEC filing for SC 13D/A AMENDMENT NO. 4 22 Mar 2024 005-90878
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K FORM 10-K 21 Mar 2024 31 Dec 2023 001-39696
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 21 Mar 2024 21 Mar 2024 001-39696
4 Open 4 document View SEC filing for 4 11 Mar 2024 08 Mar 2024
4 Open 4 document View SEC filing for 4 14 Feb 2024 09 Feb 2024
4 Open 4 document View SEC filing for 4 14 Feb 2024 09 Feb 2024
4 Open 4 document View SEC filing for 4 14 Feb 2024 09 Feb 2024
4 Open 4 document View SEC filing for 4 14 Feb 2024 09 Feb 2024
4 Open 4 document View SEC filing for 4 14 Feb 2024 09 Feb 2024
4 Open 4 document View SEC filing for 4 09 Feb 2024 08 Feb 2024
4 Open 4 document View SEC filing for 4 09 Feb 2024 08 Feb 2024
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 09 Feb 2024 005-90878
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A COMPASS THERAPEUTICS, INC. 07 Feb 2024 005-90878
SC 13G Open SC 13G document View SEC filing for SC 13G JANUS HENDERSON GROUP PLC OWNS 6.00% OF COMPASS THERAPEUTICS, INC. 01 Feb 2024 005-90878
4 Open 4 document View SEC filing for 4 10 Jan 2024 09 Jan 2024
4 Open 4 document View SEC filing for 4 10 Jan 2024 09 Jan 2024
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 09 Jan 2024 08 Jan 2024 001-39696
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 05 Jan 2024 05 Jan 2024 001-39696
SC 13G Open SC 13G document View SEC filing for SC 13G COMPASS THERAPEUTICS, INC. 27 Nov 2023 005-90878
4 Open 4 document View SEC filing for 4 21 Nov 2023 17 Nov 2023
4 Open 4 document View SEC filing for 4 21 Nov 2023 17 Nov 2023
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 09 Nov 2023 30 Sep 2023 001-39696
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 09 Nov 2023 09 Nov 2023 001-39696
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 03 Aug 2023 30 Jun 2023 001-39696
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 03 Aug 2023 03 Aug 2023 001-39696
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 15 Jun 2023 15 Jun 2023 001-39696
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 04 May 2023 31 Mar 2023 001-39696
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 04 May 2023 04 May 2023 001-39696
ARS Open ARS document View SEC filing for ARS ARS 27 Apr 2023 31 Dec 2022 001-39696
DEFA14A Open DEFA14A document View SEC filing for DEFA14A FORM DEFA14A 27 Apr 2023 001-39696
DEF 14A Open DEF 14A document View SEC filing for DEF 14A DEF 14A 27 Apr 2023 15 Jun 2023 001-39696
4 Open 4 document View SEC filing for 4 24 Apr 2023 21 Apr 2023
3 Open 3 document View SEC filing for 3 24 Apr 2023 21 Apr 2023
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 24 Apr 2023 21 Apr 2023 001-39696
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K FORM 10-K 15 Mar 2023 31 Dec 2022 001-39696
4 Open 4 document View SEC filing for 4 10 Mar 2023 10 Mar 2023
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 10 Mar 2023 10 Mar 2023 001-39696
4 Open 4 document View SEC filing for 4 27 Feb 2023 27 Feb 2023
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 24 Feb 2023 20 Feb 2023 001-39696
4 Open 4 document View SEC filing for 4 15 Feb 2023 15 Feb 2023
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 14 Feb 2023 005-90878
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SC 13G/A 13 Feb 2023 005-90878
4 Open 4 document View SEC filing for 4 10 Feb 2023 08 Feb 2023
3 Open 3 document View SEC filing for 3 10 Feb 2023 08 Feb 2023
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 10 Feb 2023 08 Feb 2023 001-39696
4 Open 4 document View SEC filing for 4 09 Feb 2023 08 Feb 2023
4 Open 4 document View SEC filing for 4 09 Feb 2023 08 Feb 2023
4 Open 4 document View SEC filing for 4 09 Feb 2023 08 Feb 2023
4 Open 4 document View SEC filing for 4 09 Feb 2023 08 Feb 2023
4 Open 4 document View SEC filing for 4 09 Feb 2023 08 Feb 2023
4 Open 4 document View SEC filing for 4 09 Feb 2023 08 Feb 2023
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 09 Feb 2023 005-90878
4 Open 4 document View SEC filing for 4 31 Jan 2023 31 Jan 2023
424B3 Open 424B3 document View SEC filing for 424B3 FORM 424B3 24 Jan 2023 333-268652
4 Open 4 document View SEC filing for 4 24 Jan 2023 24 Jan 2023
EFFECT Open EFFECT document View SEC filing for EFFECT 20 Jan 2023 333-268652
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 19 Jan 2023 19 Jan 2023 001-39696
CORRESP Open CORRESP document View SEC filing for CORRESP 19 Jan 2023
CORRESP Open CORRESP document View SEC filing for CORRESP 17 Jan 2023
CORRESP Open CORRESP document View SEC filing for CORRESP 13 Jan 2023
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 07 Dec 2022
S-3 Open S-3 document View SEC filing for S-3 FORM S-3 02 Dec 2022 333-268652
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 29 Nov 2022 29 Nov 2022 001-39696
4 Open 4 document View SEC filing for 4 25 Nov 2022 22 Nov 2022
4 Open 4 document View SEC filing for 4 22 Nov 2022 18 Nov 2022
SC 13D Open SC 13D document View SEC filing for SC 13D SC 13D 14 Nov 2022 005-90878
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 10 Nov 2022 04 Nov 2022
4 Open 4 document View SEC filing for 4 10 Nov 2022 08 Nov 2022
4 Open 4 document View SEC filing for 4 10 Nov 2022 08 Nov 2022
SC 13D/A Open SC 13D/A document View SEC filing for SC 13D/A AMENDMENT NO. 3 10 Nov 2022 005-90878
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 09 Nov 2022 30 Sep 2022 001-39696
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 02 Nov 2022 02 Nov 2022 001-39696
4 Open 4 document View SEC filing for 4 28 Sep 2022 28 Sep 2022
4 Open 4 document View SEC filing for 4 27 Sep 2022 26 Sep 2022
4 Open 4 document View SEC filing for 4 08 Sep 2022 07 Sep 2022
4 Open 4 document View SEC filing for 4 01 Sep 2022 01 Sep 2022
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 19 Aug 2022 17 Aug 2022 001-39696
4 Open 4 document View SEC filing for 4 17 Aug 2022 17 Aug 2022
4 Open 4 document View SEC filing for 4 10 Aug 2022 10 Aug 2022
4 Open 4 document View SEC filing for 4 02 Aug 2022 01 Aug 2022
424B5 Open 424B5 document View SEC filing for 424B5 424B5 01 Aug 2022 333-257821
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 01 Aug 2022 22 Jul 2022 001-39696
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 01 Aug 2022 30 Jun 2022 001-39696
4 Open 4 document View SEC filing for 4 21 Jun 2022 21 Jun 2022
4 Open 4 document View SEC filing for 4 17 Jun 2022 16 Jun 2022
4 Open 4 document View SEC filing for 4 13 Jun 2022 13 Jun 2022
4 Open 4 document View SEC filing for 4 07 Jun 2022 06 Jun 2022
4 Open 4 document View SEC filing for 4 01 Jun 2022 01 Jun 2022
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 31 May 2022 31 May 2022 001-39696
4 Open 4 document View SEC filing for 4 26 May 2022 26 May 2022
4 Open 4 document View SEC filing for 4 24 May 2022 23 May 2022
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFA14A 18 May 2022 001-39696
4 Open 4 document View SEC filing for 4 17 May 2022 17 May 2022
4 Open 4 document View SEC filing for 4 13 May 2022 11 May 2022
4 Open 4 document View SEC filing for 4 13 May 2022 11 May 2022
4 Open 4 document View SEC filing for 4 10 May 2022 06 May 2022
4 Open 4 document View SEC filing for 4 10 May 2022 06 May 2022
4 Open 4 document View SEC filing for 4 10 May 2022 10 May 2022
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 09 May 2022 31 Mar 2022 001-39696
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 04 May 2022 04 May 2022 001-39696
4 Open 4 document View SEC filing for 4 28 Apr 2022 26 Apr 2022
3 Open 3 document View SEC filing for 3 28 Apr 2022 26 Apr 2022
DEF 14A Open DEF 14A document View SEC filing for DEF 14A DEF 14A 28 Apr 2022 24 May 2022 001-39696
4 Open 4 document View SEC filing for 4 28 Apr 2022 26 Apr 2022
3 Open 3 document View SEC filing for 3 28 Apr 2022 26 Apr 2022
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 26 Apr 2022 22 Apr 2022 001-39696
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 18 Mar 2022 31 Dec 2021 001-39696
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 25 Feb 2022 22 Feb 2022 001-39696
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 23 Feb 2022 18 Feb 2022
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 23 Feb 2022 18 Feb 2022
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 23 Feb 2022 18 Feb 2022
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 23 Feb 2022 18 Feb 2022
4/A Open 4/A document View SEC filing for 4/A FORM 4/A SUBMISSION 23 Feb 2022 18 Feb 2022
4/A Open 4/A document View SEC filing for 4/A FORM 4/A SUBMISSION 23 Feb 2022 18 Feb 2022
4/A Open 4/A document View SEC filing for 4/A FORM 4/A SUBMISSION 23 Feb 2022 18 Feb 2022
4 Open 4 document View SEC filing for 4 18 Feb 2022 17 Feb 2022
4 Open 4 document View SEC filing for 4 18 Feb 2022 17 Feb 2022
4 Open 4 document View SEC filing for 4 18 Feb 2022 17 Feb 2022
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 15 Feb 2022 005-90878
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 09 Feb 2022 005-90878
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 20 Jan 2022 20 Jan 2022 001-39696
SC 13G Open SC 13G document View SEC filing for SC 13G 30 Dec 2021 005-90878
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 21 Dec 2021 20 Dec 2021 001-39696
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 17 Dec 2021 005-90878
424B5 Open 424B5 document View SEC filing for 424B5 424B5 15 Dec 2021 333-257821
424B5 Open 424B5 document View SEC filing for 424B5 424B5 15 Dec 2021 333-257821
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 18 Nov 2021 16 Nov 2021
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 18 Nov 2021 16 Nov 2021
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 12 Nov 2021 30 Sep 2021 001-39696
SC 13G Open SC 13G document View SEC filing for SC 13G SC 13G 12 Nov 2021 005-90878
SC 13D/A Open SC 13D/A document View SEC filing for SC 13D/A AMENDMENT NO. 2 09 Nov 2021 005-90878
4 Open 4 document View SEC filing for 4 08 Nov 2021 04 Nov 2021
4 Open 4 document View SEC filing for 4 08 Nov 2021 04 Nov 2021
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 03 Nov 2021 01 Nov 2021 001-39696
424B5 Open 424B5 document View SEC filing for 424B5 424B5 03 Nov 2021 333-257821
CERT Open CERT document View SEC filing for CERT 01 Nov 2021 001-39696
424B5 Open 424B5 document View SEC filing for 424B5 424B5 01 Nov 2021 333-257821
8-A12B Open 8-A12B document View SEC filing for 8-A12B 8-A12B 01 Nov 2021 001-39696
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 01 Nov 2021 01 Nov 2021 001-39696
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 08 Oct 2021 08 Oct 2021 001-39696
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 16 Aug 2021 30 Jun 2021 001-39696
8-K/A Open 8-K/A document | Open XBRL data View SEC filing for 8-K/A 8-K/A 05 Aug 2021 25 Jun 2021 001-39696
EFFECT Open EFFECT document View SEC filing for EFFECT 20 Jul 2021 333-257821
CORRESP Open CORRESP document View SEC filing for CORRESP 16 Jul 2021
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 15 Jul 2021
SC 13D/A Open SC 13D/A document View SEC filing for SC 13D/A AMENDMENT NO. 1 14 Jul 2021 005-90878
S-3 Open S-3 document View SEC filing for S-3 S-3 09 Jul 2021 333-257821
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 30 Jun 2021 25 Jun 2021 001-39696
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 29 Jun 2021 25 Jun 2021
3 Open 3 document View SEC filing for 3 PRIMARY DOCUMENT 29 Jun 2021 25 Jun 2021
8-K Open 8-K document View SEC filing for 8-K 8-K 04 Jun 2021 03 Jun 2021 001-39696
8-K Open 8-K document View SEC filing for 8-K 8-K 13 May 2021 13 May 2021 001-39696
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 05 May 2021 03 May 2021
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 05 May 2021 03 May 2021
424B3 Open 424B3 document View SEC filing for 424B3 424B3 30 Apr 2021 333-244353
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 30 Apr 2021 31 Mar 2021 001-39696
DEF 14A Open DEF 14A document View SEC filing for DEF 14A DEF 14A 29 Apr 2021 03 Jun 2021 001-39696
8-K Open 8-K document View SEC filing for 8-K 8-K 19 Apr 2021 14 Apr 2021 001-39696
424B3 Open 424B3 document View SEC filing for 424B3 424B3 11 Mar 2021 333-244353
EFFECT Open EFFECT document View SEC filing for EFFECT 08 Mar 2021 333-244353
POS AM Open POS AM document View SEC filing for POS AM POS AM 05 Mar 2021 333-244353
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 05 Mar 2021 31 Dec 2020 001-39696
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 01 Mar 2021 09 Feb 2021
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 01 Mar 2021 09 Feb 2021
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 08 Feb 2021 005-90878
S-8 Open S-8 document View SEC filing for S-8 FORM S-8 14 Jan 2021 333-252103
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 23 Dec 2020 22 Dec 2020
8-K Open 8-K document View SEC filing for 8-K 8-K 17 Dec 2020 12 Dec 2020 001-39696
RW Open RW document View SEC filing for RW REGISTRATION WITHDRAWAL 13 Nov 2020 333-249536
CERT Open CERT document View SEC filing for CERT 8A CERT 12 Nov 2020 001-39696
8-A12B Open 8-A12B document View SEC filing for 8-A12B 8-A12B 10 Nov 2020 001-39696
424B3 Open 424B3 document View SEC filing for 424B3 424B3 09 Nov 2020 333-244353
S-1/A Open S-1/A document | Open XBRL data View SEC filing for S-1/A S-1/A 09 Nov 2020 333-249536
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 09 Nov 2020 30 Sep 2020 000-55939
S-1 Open S-1 document | Open XBRL data View SEC filing for S-1 S-1 19 Oct 2020 333-249536
EFFECT Open EFFECT document View SEC filing for EFFECT 25 Sep 2020 333-244353
424B3 Open 424B3 document View SEC filing for 424B3 424B3 25 Sep 2020 333-244353
CORRESP Open CORRESP document View SEC filing for CORRESP 23 Sep 2020
DRS Open DRS document View SEC filing for DRS 23 Sep 2020 377-03585
S-1/A Open S-1/A document | Open XBRL data View SEC filing for S-1/A S-1/A 18 Sep 2020 333-244353
8-K Open 8-K document View SEC filing for 8-K 8-K 15 Sep 2020 10 Sep 2020 000-55939
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 14 Sep 2020 10 Sep 2020
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 14 Sep 2020 10 Sep 2020
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 14 Aug 2020
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 13 Aug 2020 30 Jun 2020 000-55939
S-1 Open S-1 document View SEC filing for S-1 S-1 11 Aug 2020 333-244353
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 11 Aug 2020
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 10 Aug 2020 06 Aug 2020
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 10 Aug 2020 06 Aug 2020
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 10 Aug 2020 06 Aug 2020
SC 13G Open SC 13G document View SEC filing for SC 13G 10 Aug 2020 005-90878
CORRESP Open CORRESP document View SEC filing for CORRESP 31 Jul 2020
8-K/A Open 8-K/A document View SEC filing for 8-K/A AMENDMENT NO. 1 TO FORM 8-K 31 Jul 2020 17 Jun 2020 000-55939
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 17 Jul 2020
D Open D document View SEC filing for D 01 Jul 2020 021-370115
D Open D document View SEC filing for D 01 Jul 2020 021-370112
SC 13G Open SC 13G document View SEC filing for SC 13G SCH 13G 29 Jun 2020 005-90878
SC 13D Open SC 13D document View SEC filing for SC 13D SCHEDULE 13D 29 Jun 2020 005-90878
SC 13G Open SC 13G document View SEC filing for SC 13G 29 Jun 2020 005-90878
3 Open 3 document View SEC filing for 3 PRIMARY DOCUMENT 29 Jun 2020 17 Jun 2020
SC 13D Open SC 13D document View SEC filing for SC 13D SCHEDULE 13D 26 Jun 2020 005-90878
SC 13D Open SC 13D document View SEC filing for SC 13D SCHEDULE 13D 26 Jun 2020 005-90878
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 23 Jun 2020 19 Jun 2020
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4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 23 Jun 2020 19 Jun 2020
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 23 Jun 2020 19 Jun 2020
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 23 Jun 2020 19 Jun 2020
3 Open 3 document View SEC filing for 3 OWNERSHIP DOCUMENT 23 Jun 2020 17 Jun 2020
3 Open 3 document View SEC filing for 3 OWNERSHIP DOCUMENT 23 Jun 2020 17 Jun 2020
3 Open 3 document View SEC filing for 3 OWNERSHIP DOCUMENT 23 Jun 2020 17 Jun 2020
3 Open 3 document View SEC filing for 3 OWNERSHIP DOCUMENT 23 Jun 2020 17 Jun 2020
3 Open 3 document View SEC filing for 3 OWNERSHIP DOCUMENT 23 Jun 2020 17 Jun 2020
3 Open 3 document View SEC filing for 3 OWNERSHIP DOCUMENT 23 Jun 2020 17 Jun 2020
3 Open 3 document View SEC filing for 3 OWNERSHIP DOCUMENT 23 Jun 2020 17 Jun 2020
8-K Open 8-K document View SEC filing for 8-K CURRENT REPORT 23 Jun 2020 17 Jun 2020 000-55939
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K ANNUAL REPORT 08 Jun 2020 31 Mar 2020 000-55939
SC 14F1/A Open SC 14F1/A document View SEC filing for SC 14F1/A FORM SC 14F1/A 28 May 2020 005-90878
SC 14F1 Open SC 14F1 document View SEC filing for SC 14F1 SCHEDULE 14F-1 27 May 2020 005-90878
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q QUARTERLY REPORT 14 Feb 2020 31 Dec 2019 000-55939
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q QUARTERLY REPORT 13 Nov 2019 30 Sep 2019 000-55939
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q QUARTERLY REPORT 13 Aug 2019 30 Jun 2019 000-55939
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K ANNUAL REPORT 01 Jul 2019 31 Mar 2019 000-55939
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q QUARTERLY REPORT 14 Feb 2019 31 Dec 2018 000-55939
SC 13G Open SC 13G document View SEC filing for SC 13G SCHEDULE 13G 13 Feb 2019 005-90878
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q QUARTERLY REPORT 14 Nov 2018 30 Sep 2018 000-55939
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q QUARTERLY REPORT 14 Aug 2018 30 Jun 2018 000-55939
3 Open 3 document View SEC filing for 3 30 Jul 2018 29 Jul 2018
3 Open 3 document View SEC filing for 3 30 Jul 2018 29 Jul 2018
10-12G Open 10-12G document View SEC filing for 10-12G GENERAL FORM FOR REGISTRATION OF SECURITIES 30 May 2018 000-55939

About this filer

Compass Therapeutics, Inc. files with the SEC under CIK 0001738021. This page aggregates EDGAR filings and related ownership activity.

Industry: Biological Products, (No Disgnostic Substances).

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.
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Updates follow new EDGAR submissions and periodic data refreshes.

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