Zhihu Inc.

Symbol
ZH on NYSE, ZHIHF on OTC
Business address
18 Xueqing Road, Haidian District, Beijing, China, 100083
State of incorporation
Cayman Islands
Fiscal year end
31 December
Zhihu Inc. has filed 256 SEC EDGAR filings since 11 Jan 2021

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
6-K Open Document Open Filing FORM 6-K 25 Nov 2025 25 Nov 2025 001-40253
SCHEDULE 13D/A Open Document Open Filing 21 Nov 2025 005-92889
6-K Open Document Open Filing FORM 6-K 10 Nov 2025 10 Nov 2025 001-40253
SCHEDULE 13G Open Document Open Filing 05 Nov 2025 005-92889
6-K Open Document Open Filing FORM 6-K 30 Oct 2025 30 Oct 2025 001-40253
6-K Open Document Open Filing FORM 6-K 17 Oct 2025 17 Oct 2025 001-40253
6-K Open Document Open Filing FORM 6-K 14 Oct 2025 14 Oct 2025 001-40253
6-K Open Document Open Filing FORM 6-K 30 Sep 2025 30 Sep 2025 001-40253
6-K Open Document Open Filing FORM 6-K 29 Sep 2025 29 Sep 2025 001-40253
SCHEDULE 13D/A Open Document Open Filing 19 Sep 2025 005-92889
6-K Open Document Open Filing FORM 6-K 10 Sep 2025 10 Sep 2025 001-40253
6-K Open Document Open Filing FORM 6-K 08 Sep 2025 08 Sep 2025 001-40253
6-K Open Document Open Filing FORM 6-K 27 Aug 2025 27 Aug 2025 001-40253
6-K Open Document Open Filing FORM 6-K 14 Aug 2025 14 Aug 2025 001-40253
6-K Open Document Open Filing FORM 6-K 30 Jul 2025 30 Jul 2025 001-40253
6-K Open Document Open Filing FORM 6-K 11 Jul 2025 11 Jul 2025 001-40253
6-K Open Document Open Filing FORM 6-K 08 Jul 2025 08 Jul 2025 001-40253
6-K Open Document Open Filing FORM 6-K 25 Jun 2025 25 Jun 2025 001-40253
144 Open Document Open Filing 11 Jun 2025 001-40253
6-K Open Document Open Filing FORM 6-K 11 Jun 2025 11 Jun 2025 001-40253
SCHEDULE 13D/A Open Document Open Filing 03 Jun 2025 005-92889
6-K Open Document Open Filing FORM 6-K 29 May 2025 29 May 2025 001-40253
6-K Open Document Open Filing FORM 6-K 27 May 2025 27 May 2025 001-40253
6-K Open Document Open Filing FORM 6-K 13 May 2025 13 May 2025 001-40253
6-K Open Document Open Filing FORM 6-K 12 May 2025 12 May 2025 001-40253
6-K Open Document Open Filing FORM 6-K 08 May 2025 08 May 2025 001-40253
6-K Open Document Open Filing FORM 6-K 15 Apr 2025 15 Apr 2025 001-40253
20-F Open Document | Data Open Filing 20-F 15 Apr 2025 31 Dec 2024 001-40253
6-K Open Document Open Filing FORM 6-K 14 Apr 2025 14 Apr 2025 001-40253
6-K Open Document Open Filing FORM 6-K 11 Apr 2025 11 Apr 2025 001-40253
SCHEDULE 13D/A Open Document Open Filing 07 Apr 2025 005-92889
6-K Open Document Open Filing FORM 6-K 26 Mar 2025 26 Mar 2025 001-40253
SCHEDULE 13D Open Document Open Filing 20 Mar 2025 005-92889
6-K Open Document Open Filing FORM 6-K 07 Mar 2025 07 Mar 2025 001-40253
6-K Open Document Open Filing FORM 6-K 27 Feb 2025 27 Feb 2025 001-40253
SCHEDULE 13G/A Open Document Open Filing 14 Feb 2025 005-92889
6-K Open Document Open Filing FORM 6-K 07 Feb 2025 07 Feb 2025 001-40253
6-K Open Document Open Filing FORM 6-K 10 Jan 2025 10 Jan 2025 001-40253
6-K Open Document Open Filing FORM 6-K 09 Dec 2024 09 Dec 2024 001-40253
6-K Open Document Open Filing FORM 6-K 26 Nov 2024 26 Nov 2024 001-40253
SC 13D/A Open Document Open Filing SC 13D/A 13 Nov 2024 005-92889
SC 13D/A Open Document Open Filing SC 13D/A 13 Nov 2024 005-92889
SC 13D/A Open Document Open Filing FORM SC 13D/A 12 Nov 2024 005-92889
6-K Open Document Open Filing FORM 6-K 12 Nov 2024 12 Nov 2024 001-40253
144 Open Document Open Filing 08 Nov 2024 001-40253
6-K Open Document Open Filing FORM 6-K 08 Nov 2024 08 Nov 2024 001-40253
6-K Open Document Open Filing FORM 6-K 30 Oct 2024 30 Oct 2024 001-40253
SC TO-I/A Open Document Open Filing SC TO-I/A 30 Oct 2024 005-92889
6-K Open Document Open Filing FORM 6-K 29 Oct 2024 29 Oct 2024 001-40253
6-K Open Document Open Filing FORM 6-K 23 Oct 2024 23 Oct 2024 001-40253
SC TO-I/A Open Document Open Filing SC TO-I/A 23 Oct 2024 005-92889
6-K Open Document Open Filing FORM 6-K 18 Oct 2024 18 Oct 2024 001-40253
6-K Open Document Open Filing FORM 6-K 16 Oct 2024 16 Oct 2024 001-40253
SC TO-I/A Open Document Open Filing SC TO-I/A 16 Oct 2024 005-92889
6-K Open Document Open Filing FORM 6-K 15 Oct 2024 15 Oct 2024 001-40253
6-K Open Document Open Filing FORM 6-K 30 Sep 2024 30 Sep 2024 001-40253
6-K Open Document Open Filing FORM 6-K 10 Sep 2024 10 Sep 2024 001-40253
6-K Open Document Open Filing FORM 6-K 09 Sep 2024 09 Sep 2024 001-40253
SC TO-I Open Document Open Filing SC TO-I 09 Sep 2024 005-92889
6-K Open Document Open Filing FORM 6-K 06 Sep 2024 06 Sep 2024 001-40253
6-K Open Document Open Filing FORM 6-K 05 Sep 2024 05 Sep 2024 001-40253
6-K Open Document Open Filing FORM 6-K 03 Sep 2024 03 Sep 2024 001-40253
6-K Open Document Open Filing FORM 6-K 27 Aug 2024 27 Aug 2024 001-40253
6-K Open Document Open Filing FORM 6-K 23 Aug 2024 23 Aug 2024 001-40253
6-K Open Document Open Filing FORM 6-K 12 Aug 2024 12 Aug 2024 001-40253
6-K Open Document Open Filing FORM 6-K 09 Aug 2024 09 Aug 2024 001-40253
SC TO-C Open Document Open Filing SC TO-C 09 Aug 2024 005-92889
6-K Open Document Open Filing FORM 6-K 06 Aug 2024 06 Aug 2024 001-40253
6-K Open Document Open Filing FORM 6-K 01 Aug 2024 01 Aug 2024 001-40253
6-K Open Document Open Filing FORM 6-K 23 Jul 2024 23 Jul 2024 001-40253
6-K Open Document Open Filing FORM 6-K 19 Jul 2024 19 Jul 2024 001-40253
SC TO-C Open Document Open Filing SC TO-C 19 Jul 2024 005-92889
6-K Open Document Open Filing FORM 6-K 12 Jul 2024 12 Jul 2024 001-40253
6-K Open Document Open Filing FORM 6-K 08 Jul 2024 08 Jul 2024 001-40253
6-K Open Document Open Filing FORM 6-K 02 Jul 2024 02 Jul 2024 001-40253
6-K Open Document Open Filing FORM 6-K 26 Jun 2024 26 Jun 2024 001-40253
6-K Open Document Open Filing FORM 6-K 12 Jun 2024 12 Jun 2024 001-40253
6-K Open Document Open Filing FORM 6-K 11 Jun 2024 11 Jun 2024 001-40253
6-K Open Document Open Filing FORM 6-K 05 Jun 2024 05 Jun 2024 001-40253
6-K Open Document Open Filing FORM 6-K 05 Jun 2024 05 Jun 2024 001-40253
6-K Open Document Open Filing FORM 6-K 30 May 2024 30 May 2024 001-40253
6-K Open Document Open Filing FORM 6-K 28 May 2024 28 May 2024 001-40253
6-K Open Document Open Filing FORM 6-K 13 May 2024 13 May 2024 001-40253
6-K Open Document Open Filing FORM 6-K 08 May 2024 08 May 2024 001-40253
6-K Open Document Open Filing FORM 6-K 26 Apr 2024 26 Apr 2024 001-40253
F-6 POS Open Document Open Filing 26 Apr 2024 333-254493
6-K Open Document Open Filing FORM 6-K 26 Apr 2024 26 Apr 2024 001-40253
20-F Open Document | Data Open Filing FORM 20-F 26 Apr 2024 31 Dec 2023 001-40253
6-K Open Document Open Filing FORM 6-K 15 Apr 2024 15 Apr 2024 001-40253
6-K Open Document Open Filing FORM 6-K 08 Apr 2024 08 Apr 2024 001-40253
6-K Open Document Open Filing FORM 6-K 26 Mar 2024 26 Mar 2024 001-40253
6-K Open Document Open Filing FORM 6-K 13 Mar 2024 13 Mar 2024 001-40253
6-K Open Document Open Filing FORM 6-K 11 Mar 2024 11 Mar 2024 001-40253
SC 13D/A Open Document Open Filing SC 13D/A 20 Feb 2024 005-92889
6-K Open Document Open Filing FORM 6-K 20 Feb 2024 20 Feb 2024 001-40253
6-K Open Document Open Filing FORM 6-K 09 Feb 2024 09 Feb 2024 001-40253
SC 13G/A Open Document Open Filing FORM SC 13G/A 08 Feb 2024 005-92889
6-K Open Document Open Filing FORM 6-K 05 Feb 2024 05 Feb 2024 001-40253
SC 13D/A Open Document Open Filing FORM SC 13D/A 01 Feb 2024 005-92889
6-K Open Document Open Filing FORM 6-K 29 Jan 2024 29 Jan 2024 001-40253
SC 13G/A Open Document Open Filing SC 13G/A 22 Jan 2024 005-92889
6-K Open Document Open Filing FORM 6-K 22 Jan 2024 22 Jan 2024 001-40253
6-K Open Document Open Filing FORM 6-K 18 Jan 2024 18 Jan 2024 001-40253
6-K Open Document Open Filing FORM 6-K 16 Jan 2024 16 Jan 2024 001-40253
6-K Open Document Open Filing FORM 6-K 08 Jan 2024 08 Jan 2024 001-40253
6-K Open Document Open Filing FORM 6-K 02 Jan 2024 02 Jan 2024 001-40253
6-K Open Document Open Filing FORM 6-K 29 Dec 2023 29 Dec 2023 001-40253
6-K Open Document Open Filing FORM 6-K 27 Dec 2023 27 Dec 2023 001-40253
6-K Open Document Open Filing FORM 6-K 21 Dec 2023 21 Dec 2023 001-40253
6-K Open Document Open Filing FORM 6-K 18 Dec 2023 18 Dec 2023 001-40253
6-K Open Document Open Filing FORM 6-K 11 Dec 2023 11 Dec 2023 001-40253
6-K Open Document Open Filing FORM 6-K 04 Dec 2023 04 Dec 2023 001-40253
6-K Open Document Open Filing FORM 6-K 29 Nov 2023 29 Nov 2023 001-40253
6-K Open Document Open Filing FORM 6-K 27 Nov 2023 27 Nov 2023 001-40253
6-K Open Document Open Filing FORM 6-K 20 Nov 2023 20 Nov 2023 001-40253
6-K Open Document Open Filing FORM 6-K 17 Nov 2023 17 Nov 2023 001-40253
6-K Open Document Open Filing FORM 6-K 13 Nov 2023 13 Nov 2023 001-40253
6-K Open Document Open Filing FORM 6-K 07 Nov 2023 07 Nov 2023 001-40253
6-K Open Document Open Filing FORM 6-K 06 Nov 2023 06 Nov 2023 001-40253
6-K Open Document Open Filing FORM 6-K 30 Oct 2023 30 Oct 2023 001-40253
6-K Open Document Open Filing FORM 6-K 27 Oct 2023 27 Oct 2023 001-40253
6-K Open Document Open Filing FORM 6-K 25 Oct 2023 25 Oct 2023 001-40253
6-K Open Document Open Filing FORM 6-K 16 Oct 2023 16 Oct 2023 001-40253
6-K Open Document Open Filing FORM 6-K 10 Oct 2023 10 Oct 2023 001-40253
6-K Open Document Open Filing FORM 6-K 03 Oct 2023 03 Oct 2023 001-40253
6-K Open Document Open Filing FORM 6-K 26 Sep 2023 26 Sep 2023 001-40253
6-K Open Document Open Filing FORM 6-K 25 Sep 2023 25 Sep 2023 001-40253
6-K Open Document Open Filing FORM 6-K 11 Sep 2023 11 Sep 2023 001-40253
UPLOAD Open Document Open Filing 08 Sep 2023
CORRESP Open Document Open Filing 31 Aug 2023
6-K Open Document Open Filing FORM 6-K 28 Aug 2023 28 Aug 2023 001-40253
6-K Open Document Open Filing FORM 6-K 23 Aug 2023 23 Aug 2023 001-40253
6-K Open Document Open Filing FORM 6-K 21 Aug 2023 21 Aug 2023 001-40253
UPLOAD Open Document Open Filing 17 Aug 2023
6-K Open Document Open Filing FORM 6-K 14 Aug 2023 14 Aug 2023 001-40253
6-K Open Document Open Filing FORM 6-K 11 Aug 2023 11 Aug 2023 001-40253
6-K Open Document Open Filing FORM 6-K 07 Aug 2023 07 Aug 2023 001-40253
6-K Open Document Open Filing FORM 6-K 31 Jul 2023 31 Jul 2023 001-40253
6-K Open Document Open Filing FORM 6-K 24 Jul 2023 24 Jul 2023 001-40253
6-K Open Document Open Filing FORM 6-K 17 Jul 2023 17 Jul 2023 001-40253
6-K Open Document Open Filing FORM 6-K 10 Jul 2023 10 Jul 2023 001-40253
6-K Open Document Open Filing FORM 6-K 03 Jul 2023 03 Jul 2023 001-40253
6-K Open Document Open Filing FORM 6-K 30 Jun 2023 30 Jun 2023 001-40253
6-K Open Document Open Filing FORM 6-K 26 Jun 2023 26 Jun 2023 001-40253
6-K Open Document Open Filing FORM 6-K 20 Jun 2023 20 Jun 2023 001-40253
6-K Open Document Open Filing FORM 6-K 12 Jun 2023 12 Jun 2023 001-40253
6-K Open Document Open Filing FORM 6-K 05 Jun 2023 05 Jun 2023 001-40253
6-K Open Document Open Filing FORM 6-K 02 Jun 2023 02 Jun 2023 001-40253
6-K Open Document Open Filing FORM 6-K 24 May 2023 24 May 2023 001-40253
6-K Open Document Open Filing FORM 6-K 24 May 2023 24 May 2023 001-40253
6-K Open Document Open Filing FORM 6-K 15 May 2023 15 May 2023 001-40253
6-K Open Document Open Filing FORM 6-K 12 May 2023 12 May 2023 001-40253
6-K Open Document Open Filing FORM 6-K 08 May 2023 08 May 2023 001-40253
6-K Open Document Open Filing FORM 6-K 02 May 2023 02 May 2023 001-40253
6-K Open Document Open Filing FORM 6-K 28 Apr 2023 28 Apr 2023 001-40253
6-K Open Document Open Filing FORM 6-K 28 Apr 2023 28 Apr 2023 001-40253
20-F Open Document | Data Open Filing FORM 20-F 28 Apr 2023 31 Dec 2022 001-40253
6-K Open Document Open Filing FORM 6-K 24 Apr 2023 24 Apr 2023 001-40253
6-K Open Document Open Filing FORM 6-K 17 Apr 2023 17 Apr 2023 001-40253
6-K Open Document Open Filing FORM 6-K 11 Apr 2023 11 Apr 2023 001-40253
6-K Open Document Open Filing FORM 6-K 03 Apr 2023 03 Apr 2023 001-40253
6-K Open Document Open Filing FORM 6-K 22 Mar 2023 22 Mar 2023 001-40253
6-K Open Document Open Filing FORM 6-K 10 Mar 2023 10 Mar 2023 001-40253
6-K Open Document Open Filing FORM 6-K 09 Mar 2023 09 Mar 2023 001-40253
6-K Open Document Open Filing FORM 6-K 06 Mar 2023 06 Mar 2023 001-40253
SC 13G/A Open Document Open Filing FORM SC 13G/A 14 Feb 2023 005-92889
SC 13G/A Open Document Open Filing SC 13G/A 09 Feb 2023 005-92889
SC 13G/A Open Document Open Filing SC 13G/A 08 Feb 2023 005-92889
6-K Open Document Open Filing FORM 6-K 06 Feb 2023 06 Feb 2023 001-40253
SC 13G/A Open Document Open Filing SC 13G/A 31 Jan 2023 005-92889
6-K Open Document Open Filing FORM 6-K 20 Jan 2023 20 Jan 2023 001-40253
6-K Open Document Open Filing FORM 6-K 09 Jan 2023 09 Jan 2023 001-40253
6-K Open Document Open Filing FORM 6-K 03 Jan 2023 03 Jan 2023 001-40253
6-K Open Document Open Filing FORM 6-K 12 Dec 2022 12 Dec 2022 001-40253
6-K Open Document Open Filing FORM 6-K 30 Nov 2022 30 Nov 2022 001-40253
6-K Open Document Open Filing FORM 6-K 21 Nov 2022 21 Nov 2022 001-40253
6-K Open Document Open Filing FORM 6-K 15 Nov 2022 15 Nov 2022 001-40253
6-K Open Document Open Filing FORM 6-K 14 Nov 2022 14 Nov 2022 001-40253
6-K Open Document Open Filing FORM 6-K 08 Nov 2022 08 Nov 2022 001-40253
6-K Open Document Open Filing FORM 6-K 01 Nov 2022 01 Nov 2022 001-40253
6-K Open Document Open Filing FORM 6-K 31 Oct 2022 31 Oct 2022 001-40253
6-K Open Document Open Filing FORM 6-K 25 Oct 2022 25 Oct 2022 001-40253
6-K Open Document Open Filing FORM 6-K 17 Oct 2022 17 Oct 2022 001-40253
6-K Open Document Open Filing FORM 6-K 11 Oct 2022 11 Oct 2022 001-40253
6-K Open Document Open Filing FORM 6-K 03 Oct 2022 03 Oct 2022 001-40253
6-K Open Document Open Filing FORM 6-K 26 Sep 2022 26 Sep 2022 001-40253
6-K Open Document Open Filing FORM 6-K 23 Sep 2022 23 Sep 2022 001-40253
6-K Open Document Open Filing FORM 6-K 19 Sep 2022 19 Sep 2022 001-40253
6-K Open Document Open Filing FORM 6-K 13 Sep 2022 13 Sep 2022 001-40253
6-K Open Document Open Filing FORM 6-K 30 Aug 2022 30 Aug 2022 001-40253
6-K Open Document Open Filing FORM 6-K 25 Aug 2022 25 Aug 2022 001-40253
6-K Open Document Open Filing FORM 6-K 18 Aug 2022 18 Aug 2022 001-40253
6-K Open Document Open Filing FORM 6-K 08 Aug 2022 08 Aug 2022 001-40253
6-K Open Document Open Filing FORM 6-K 01 Aug 2022 01 Aug 2022 001-40253
6-K Open Document Open Filing FORM 6-K 25 Jul 2022 25 Jul 2022 001-40253
6-K Open Document Open Filing FORM 6-K 18 Jul 2022 18 Jul 2022 001-40253
6-K Open Document Open Filing FORM 6-K 11 Jul 2022 11 Jul 2022 001-40253
6-K Open Document Open Filing FORM 6-K 06 Jul 2022 06 Jul 2022 001-40253
6-K Open Document Open Filing FORM 6-K 30 Jun 2022 30 Jun 2022 001-40253
6-K Open Document Open Filing FORM 6-K 28 Jun 2022 28 Jun 2022 001-40253
6-K Open Document Open Filing FORM 6-K 27 Jun 2022 27 Jun 2022 001-40253
6-K Open Document Open Filing FORM 6-K 24 Jun 2022 24 Jun 2022 001-40253
6-K Open Document Open Filing FORM 6-K 23 Jun 2022 23 Jun 2022 001-40253
6-K Open Document Open Filing FORM 6-K 22 Jun 2022 22 Jun 2022 001-40253
6-K Open Document Open Filing FORM 6-K 13 Jun 2022 13 Jun 2022 001-40253
6-K Open Document Open Filing FORM 6-K 07 Jun 2022 07 Jun 2022 001-40253
S-8 Open Document Open Filing FORM S-8 07 Jun 2022 333-265451
6-K Open Document Open Filing FORM 6-K 25 May 2022 25 May 2022 001-40253
6-K Open Document Open Filing FORM 6-K 23 May 2022 23 May 2022 001-40253
6-K Open Document Open Filing FORM 6-K 19 May 2022 19 May 2022 001-40253
6-K Open Document Open Filing FORM 6-K 17 May 2022 17 May 2022 001-40253
SC 13D Open Document Open Filing SC 13D 16 May 2022 005-92889
6-K Open Document Open Filing FORM 6-K 13 May 2022 13 May 2022 001-40253
6-K Open Document Open Filing FORM 6-K 10 May 2022 10 May 2022 001-40253
6-K Open Document Open Filing FORM 6-K 02 May 2022 02 May 2022 001-40253
6-K Open Document Open Filing FORM 6-K 29 Apr 2022 29 Apr 2022 001-40253
SC 13D Open Document Open Filing SC 13D 20 Apr 2022 005-92889
424B5 Open Document Open Filing 424B5 14 Apr 2022 333-264200
6-K Open Document Open Filing FORM 6-K 14 Apr 2022 14 Apr 2022 001-40253
6-K Open Document Open Filing FORM 6-K 13 Apr 2022 13 Apr 2022 001-40253
6-K Open Document Open Filing FORM 6-K 08 Apr 2022 08 Apr 2022 001-40253
424B5 Open Document Open Filing 424B5 08 Apr 2022 333-264200
F-3ASR Open Document Open Filing FORM F-3ASR 08 Apr 2022 333-264200
20-F Open Document | Data Open Filing FORM 20-F 08 Apr 2022 31 Dec 2021 001-40253
6-K Open Document Open Filing 6-K 08 Apr 2022 08 Apr 2022 001-40253
SC 13G Open Document Open Filing SCHEDULE 13G 28 Mar 2022 005-92889
6-K Open Document Open Filing FORM 6-K 14 Mar 2022 14 Mar 2022 001-40253
SC 13G Open Document Open Filing SC 13G 17 Feb 2022 005-92889
SC 13G Open Document Open Filing SC 13G 14 Feb 2022 005-92889
SC 13G Open Document Open Filing FORM SC 13G/A 14 Feb 2022 005-92889
SC 13G Open Document Open Filing SC 13G 11 Feb 2022 005-92889
SC 13G Open Document Open Filing SCHEDULE 13G 09 Feb 2022 005-92889
6-K Open Document Open Filing FORM 6-K 22 Nov 2021 22 Nov 2021 001-40253
SC 13D Open Document Open Filing FORM SC 13D 30 Sep 2021 005-92889
6-K Open Document Open Filing FORM 6-K 16 Aug 2021 16 Aug 2021 001-40253
S-8 Open Document Open Filing FORM S-8 17 May 2021 333-256178
6-K Open Document Open Filing FORM 6-K 17 May 2021 17 May 2021 001-40253
424B4 Open Document Open Filing 424(B)(4) 26 Mar 2021 333-253910
EFFECT Open Document Open Filing 25 Mar 2021 333-253910
EFFECT Open Document Open Filing 25 Mar 2021 333-254493
CORRESP Open Document Open Filing 23 Mar 2021
CORRESP Open Document Open Filing 23 Mar 2021
F-1/A Open Document Open Filing AMENDMENT NO.2 TO FORM F-1 23 Mar 2021 333-253910
CERT Open Document Open Filing NYSE CERTIFICATION 23 Mar 2021 001-40253
F-6 Open Document Open Filing FORM F-6 19 Mar 2021 333-254493
CORRESP Open Document Open Filing 19 Mar 2021
F-1/A Open Document Open Filing AMENDMENT NO. 1 TO FORM F-1 19 Mar 2021 333-253910
8-A12B Open Document Open Filing FORM 8-A 19 Mar 2021 001-40253
CORRESP Open Document Open Filing 05 Mar 2021
F-1 Open Document Open Filing FORM F-1 05 Mar 2021 333-253910
UPLOAD Open Document Open Filing 02 Mar 2021
DRSLTR Open Document Open Filing 10 Feb 2021
DRS/A Open Document Open Filing 10 Feb 2021 377-04011
UPLOAD Open Document Open Filing 05 Feb 2021
DRSLTR Open Document Open Filing 11 Jan 2021
DRS Open Document Open Filing 11 Jan 2021 377-04011