Apexigen, Inc. SEC EDGAR Filings (CIK 0001814140)

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

Industry
Pharmaceutical Preparations (Office Of Life Sciences)
Business address
900 Industrial Road, Suite C, San Carlos, CA, 94070
State of incorporation
DE
Fiscal year end
31 December
Former names
Brookline Capital Acquisition Corp. (to 01 Aug 2022)
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Apexigen, Inc. has filed 202 SEC EDGAR filings since 17 Jul 2020

Latest Filings

Recent SEC filings for Apexigen, Inc. including 15-12G, 4, 3/A and more.

Form type Document Filing Description Filing date Reporting date File number(s)
15-12G Open 15-12G document View SEC filing for 15-12G 15-12G 05 Sep 2023 001-39488
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 25 Aug 2023 23 Aug 2023
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 25 Aug 2023 23 Aug 2023
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 25 Aug 2023 23 Aug 2023
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 25 Aug 2023 23 Aug 2023
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 25 Aug 2023 23 Aug 2023
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 25 Aug 2023 23 Aug 2023
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 25 Aug 2023 23 Aug 2023
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 25 Aug 2023 23 Aug 2023
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 25 Aug 2023 23 Aug 2023
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 25 Aug 2023 23 Aug 2023
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 25 Aug 2023 23 Aug 2023
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 25 Aug 2023 23 Aug 2023
3/A Open 3/A document View SEC filing for 3/A FORM 3/A SUBMISSION 24 Aug 2023 29 Jul 2022
S-8 POS Open S-8 POS document View SEC filing for S-8 POS S-8 POS 23 Aug 2023 333-267765
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 23 Aug 2023 23 Aug 2023 001-39488
25-NSE Open 25-NSE document View SEC filing for 25-NSE 23 Aug 2023 001-39488
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 22 Aug 2023 22 Aug 2023 001-39488
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 18 Aug 2023 15 Aug 2023 001-39488
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFA14A 16 Aug 2023 001-39488
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 15 Aug 2023 15 Aug 2023 001-39488
425 Open 425 document View SEC filing for 425 425 11 Aug 2023 001-39488
425 Open 425 document View SEC filing for 425 425 11 Aug 2023 001-39488
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 10 Aug 2023 30 Jun 2023 001-39488
425 Open 425 document View SEC filing for 425 425 30 Jun 2023 001-39488
DEFM14A Open DEFM14A document View SEC filing for DEFM14A FORM DEFM14A 30 Jun 2023 001-39488
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 23 Jun 2023 15 Jun 2023
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 23 Jun 2023 15 Jun 2023
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 23 Jun 2023 15 Jun 2023
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 23 Jun 2023 15 Jun 2023
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 23 Jun 2023 15 Jun 2023
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 25 May 2023 23 May 2023
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 25 May 2023 23 May 2023
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 25 May 2023 23 May 2023
425 Open 425 document View SEC filing for 425 425 25 May 2023 001-39488
425 Open 425 document View SEC filing for 425 425 24 May 2023 001-39488
425 Open 425 document View SEC filing for 425 425 24 May 2023 001-39488
425 Open 425 document View SEC filing for 425 425 24 May 2023
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 24 May 2023 23 May 2023 001-39488
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 23 May 2023 26 Jan 2023
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 15 May 2023 31 Mar 2023 001-39488
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 12 Apr 2023 11 Apr 2023 001-39488
424B3 Open 424B3 document View SEC filing for 424B3 424B3 10 Apr 2023 333-266847
424B3 Open 424B3 document View SEC filing for 424B3 424B3 10 Apr 2023 333-266846
EFFECT Open EFFECT document View SEC filing for EFFECT 07 Apr 2023 333-266847
EFFECT Open EFFECT document View SEC filing for EFFECT 07 Apr 2023 333-266846
POS AM Open POS AM document View SEC filing for POS AM POS AM 04 Apr 2023 333-266846
POS AM Open POS AM document View SEC filing for POS AM POS AM 04 Apr 2023 333-266847
EFFECT Open EFFECT document View SEC filing for EFFECT 21 Mar 2023 333-269912
424B3 Open 424B3 document View SEC filing for 424B3 424B3 21 Mar 2023 333-269912
CORRESP Open CORRESP document View SEC filing for CORRESP 20 Mar 2023
S-1/A Open S-1/A document View SEC filing for S-1/A S-1/A 17 Mar 2023 333-269912
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 27 Feb 2023 23 Feb 2023 001-39488
S-1 Open S-1 document | Open XBRL data View SEC filing for S-1 S-1 22 Feb 2023 333-269912
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 22 Feb 2023 31 Dec 2022 001-39488
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 14 Feb 2023 13 Feb 2023 001-39488
D Open D document View SEC filing for D 14 Feb 2023 021-473368
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SC 13G/A 13 Feb 2023 005-92133
SC 13G Open SC 13G document View SEC filing for SC 13G SC 13G 13 Feb 2023 005-92133
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 01 Feb 2023 31 Jan 2023 001-39488
424B3 Open 424B3 document View SEC filing for 424B3 424B3 30 Jan 2023 333-266847
424B3 Open 424B3 document View SEC filing for 424B3 424B3 30 Jan 2023 333-266846
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A APEXIGEN, INC. 26 Jan 2023 005-92133
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 25 Jan 2023 23 Jan 2023 001-39488
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 19 Dec 2022 15 Dec 2022
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 19 Dec 2022 15 Dec 2022
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 19 Dec 2022 15 Dec 2022
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 19 Dec 2022 15 Dec 2022
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 19 Dec 2022 15 Dec 2022
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 14 Nov 2022 30 Sep 2022 001-39488
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 14 Nov 2022 08 Nov 2022 001-39488
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 11 Oct 2022 07 Oct 2022
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 11 Oct 2022 07 Oct 2022
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 11 Oct 2022 07 Oct 2022
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 11 Oct 2022 07 Oct 2022
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 11 Oct 2022 07 Oct 2022
S-8 Open S-8 document View SEC filing for S-8 S-8 07 Oct 2022 333-267765
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 03 Oct 2022 29 Sep 2022
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 03 Oct 2022 29 Sep 2022
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 03 Oct 2022 29 Sep 2022
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 03 Oct 2022 29 Sep 2022
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 03 Oct 2022 29 Sep 2022
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 03 Oct 2022 29 Sep 2022
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 03 Oct 2022 29 Sep 2022
EFFECT Open EFFECT document View SEC filing for EFFECT 09 Sep 2022 333-266847
EFFECT Open EFFECT document View SEC filing for EFFECT 09 Sep 2022 333-266846
424B3 Open 424B3 document View SEC filing for 424B3 424B3 09 Sep 2022 333-266847
424B3 Open 424B3 document View SEC filing for 424B3 424B3 09 Sep 2022 333-266846
CORRESP Open CORRESP document View SEC filing for CORRESP 08 Sep 2022
CORRESP Open CORRESP document View SEC filing for CORRESP 08 Sep 2022
CORRESP Open CORRESP document View SEC filing for CORRESP 01 Sep 2022
CORRESP Open CORRESP document View SEC filing for CORRESP 01 Sep 2022
S-1/A Open S-1/A document | Open XBRL data View SEC filing for S-1/A S-1/A 01 Sep 2022 333-266846
S-1/A Open S-1/A document | Open XBRL data View SEC filing for S-1/A S-1/A 01 Sep 2022 333-266847
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 29 Aug 2022
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 29 Aug 2022
8-K/A Open 8-K/A document | Open XBRL data View SEC filing for 8-K/A 8-K/A 18 Aug 2022 29 Jul 2022 001-39488
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 18 Aug 2022 30 Jun 2022 001-39488
NT 10-Q Open NT 10-Q document View SEC filing for NT 10-Q NT 10-Q 15 Aug 2022 30 Jun 2022 001-39488
S-1 Open S-1 document View SEC filing for S-1 S-1 12 Aug 2022 333-266847
S-1 Open S-1 document View SEC filing for S-1 S-1 12 Aug 2022 333-266846
SC 13G Open SC 13G document View SEC filing for SC 13G 11 Aug 2022 005-92133
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 08 Aug 2022 29 Jul 2022
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 08 Aug 2022 29 Jul 2022
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 08 Aug 2022 29 Jul 2022
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 08 Aug 2022 29 Jul 2022
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 08 Aug 2022 29 Jul 2022
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 08 Aug 2022 29 Jul 2022
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 08 Aug 2022 29 Jul 2022
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 08 Aug 2022 29 Jul 2022
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 08 Aug 2022 29 Jul 2022
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 08 Aug 2022 29 Jul 2022
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 08 Aug 2022 29 Jul 2022
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 08 Aug 2022 29 Jul 2022
SC 13G Open SC 13G document View SEC filing for SC 13G SCHEDULE 13G 08 Aug 2022 005-92133
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 04 Aug 2022 29 Jul 2022 001-39488
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SCHEDULE 13G 01 Aug 2022 005-92133
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 01 Aug 2022 29 Jul 2022 001-39488
25-NSE Open 25-NSE document View SEC filing for 25-NSE 01 Aug 2022 333-246287
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 28 Jul 2022 27 Jul 2022 001-39488
425 Open 425 document View SEC filing for 425 425 18 Jul 2022 001-39488
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 18 Jul 2022 18 Jul 2022 001-39488
425 Open 425 document View SEC filing for 425 425 11 Jul 2022 001-39488
424B3 Open 424B3 document View SEC filing for 424B3 424B3 06 Jul 2022 333-264222
EFFECT Open EFFECT document View SEC filing for EFFECT 05 Jul 2022 333-264222
CORRESP Open CORRESP document View SEC filing for CORRESP 01 Jul 2022
CORRESP Open CORRESP document View SEC filing for CORRESP 30 Jun 2022
S-4/A Open S-4/A document View SEC filing for S-4/A S-4/A 30 Jun 2022 333-264222
425 Open 425 document View SEC filing for 425 425 30 Jun 2022 001-39488
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 30 Jun 2022 29 Jun 2022 001-39488
425 Open 425 document View SEC filing for 425 425 29 Jun 2022 001-39488
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 29 Jun 2022
CORRESP Open CORRESP document View SEC filing for CORRESP 27 Jun 2022
S-4/A Open S-4/A document View SEC filing for S-4/A S-4/A 27 Jun 2022 333-264222
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 27 Jun 2022 26 Jun 2022 001-39488
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 22 Jun 2022
425 Open 425 document View SEC filing for 425 425 15 Jun 2022 001-39488
CORRESP Open CORRESP document View SEC filing for CORRESP 14 Jun 2022
S-4/A Open S-4/A document View SEC filing for S-4/A S-4/A 14 Jun 2022 333-264222
425 Open 425 document View SEC filing for 425 425 08 Jun 2022 001-39488
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 08 Jun 2022
425 Open 425 document View SEC filing for 425 425 03 Jun 2022 001-39488
425 Open 425 document View SEC filing for 425 425 02 Jun 2022 001-39488
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 02 Jun 2022 02 Jun 2022 001-39488
S-4/A Open S-4/A document | Open XBRL data View SEC filing for S-4/A S-4/A 24 May 2022 333-264222
CORRESP Open CORRESP document View SEC filing for CORRESP 23 May 2022
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 23 May 2022 31 Mar 2022 001-39488
425 Open 425 document View SEC filing for 425 425 19 May 2022 001-39488
NT 10-Q Open NT 10-Q document View SEC filing for NT 10-Q NT 10-Q 16 May 2022 31 Mar 2022 001-39488
425 Open 425 document View SEC filing for 425 425 16 May 2022 001-39488
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 10 May 2022
425 Open 425 document View SEC filing for 425 425 09 May 2022 001-39488
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 03 May 2022 02 May 2022 001-39488
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 26 Apr 2022 26 Apr 2022 001-39488
425 Open 425 document View SEC filing for 425 425 22 Apr 2022 001-39488
SC 13G Open SC 13G document View SEC filing for SC 13G SCHEDULE 13G 13 Apr 2022 005-92133
S-4 Open S-4 document View SEC filing for S-4 FORM S-4 11 Apr 2022 333-264222
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K FORM 10-K 07 Apr 2022 31 Dec 2021 001-39488
NT 10-K Open NT 10-K document View SEC filing for NT 10-K NT 10-K 31 Mar 2022 31 Mar 2022 001-39488
DEF 14A Open DEF 14A document View SEC filing for DEF 14A DEF 14A 28 Mar 2022 26 Apr 2022 001-39488
PRE 14A Open PRE 14A document View SEC filing for PRE 14A PRE 14A 18 Mar 2022 26 Apr 2022 001-39488
425 Open 425 document View SEC filing for 425 425 18 Mar 2022 001-39488
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 18 Mar 2022 18 Mar 2022 001-39488
425 Open 425 document View SEC filing for 425 425 18 Mar 2022 001-39488
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 18 Mar 2022 18 Mar 2022 001-39488
SC 13G Open SC 13G document View SEC filing for SC 13G SCHEDULE 13G 14 Feb 2022 005-92133
SC 13G Open SC 13G document View SEC filing for SC 13G BROOKLINE CAPITAL ACQUISITION CORP. 04 Feb 2022 005-92133
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 15 Dec 2021 30 Nov 2021 001-39488
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 09 Dec 2021 30 Sep 2021 001-39488
8-K/A Open 8-K/A document | Open XBRL data View SEC filing for 8-K/A 8-K/A 24 Nov 2021 23 Nov 2021 001-39488
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 24 Nov 2021 22 Nov 2021 001-39488
NT 10-Q Open NT 10-Q document View SEC filing for NT 10-Q NT 10-Q 15 Nov 2021 30 Sep 2021 001-39488
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 16 Aug 2021 30 Jun 2021 001-39488
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 07 Jun 2021 31 Mar 2021 001-39488
8-K Open 8-K document View SEC filing for 8-K 8-K 04 Jun 2021 28 May 2021 001-39488
NT 10-Q Open NT 10-Q document View SEC filing for NT 10-Q NT 10-Q 17 May 2021 31 Mar 2021 001-39488
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 10 Mar 2021 005-92133
8-K Open 8-K document View SEC filing for 8-K CURRENT REPORT 18 Feb 2021 18 Feb 2021 001-39488
4 Open 4 document View SEC filing for 4 OWNERSHIP DOCUMENT 16 Feb 2021 11 Feb 2021
SC 13D Open SC 13D document View SEC filing for SC 13D SCHEDULE 13D 12 Feb 2021 005-92133
SC 13G Open SC 13G document View SEC filing for SC 13G 10 Feb 2021 005-92133
3 Open 3 document View SEC filing for 3 PRIMARY DOCUMENT 09 Feb 2021 29 Jan 2021
8-K Open 8-K document View SEC filing for 8-K CURRENT REPORT 08 Feb 2021 02 Feb 2021 001-39488
4 Open 4 document View SEC filing for 4 04 Feb 2021 02 Feb 2021
8-K Open 8-K document View SEC filing for 8-K CURRENT REPORT 02 Feb 2021 28 Jan 2021 001-39488
424B4 Open 424B4 document View SEC filing for 424B4 29 Jan 2021 333-246287
EFFECT Open EFFECT document View SEC filing for EFFECT 28 Jan 2021 333-246287
3 Open 3 document View SEC filing for 3 OWNERSHIP DOCUMENT 28 Jan 2021 28 Jan 2021
3 Open 3 document View SEC filing for 3 OWNERSHIP DOCUMENT 28 Jan 2021 28 Jan 2021
3 Open 3 document View SEC filing for 3 28 Jan 2021 28 Jan 2021
3 Open 3 document View SEC filing for 3 OWNERSHIP DOCUMENT 28 Jan 2021 28 Jan 2021
3 Open 3 document View SEC filing for 3 28 Jan 2021 28 Jan 2021
3 Open 3 document View SEC filing for 3 28 Jan 2021 28 Jan 2021
3 Open 3 document View SEC filing for 3 OWNERSHIP DOCUMENT 28 Jan 2021 28 Jan 2021
8-A12B/A Open 8-A12B/A document View SEC filing for 8-A12B/A AMENDMENT NO. 1 TO FORM 8-A12B 27 Jan 2021 001-39488
CERT Open CERT document View SEC filing for CERT 25 Jan 2021 001-39488
S-1/A Open S-1/A document View SEC filing for S-1/A AMENDMENT NO. 3 TO FORM S-1 07 Jan 2021 333-246287
8-A12B Open 8-A12B document View SEC filing for 8-A12B REGISTRATION OF CERTAIN CLASSES OF SECURITIES 03 Sep 2020 001-39488
S-1/A Open S-1/A document View SEC filing for S-1/A REGISTRATION STATEMENT 26 Aug 2020 333-246287
S-1/A Open S-1/A document View SEC filing for S-1/A AMENDMENT NO. 1 TO FORM S-1 24 Aug 2020 333-246287
S-1 Open S-1 document View SEC filing for S-1 REGISTRATION STATEMENT 14 Aug 2020 333-246287
DRS Open DRS document View SEC filing for DRS 17 Jul 2020 377-03301

About this filer

Apexigen, Inc. files with the SEC under CIK 0001814140. This page aggregates EDGAR filings and related ownership activity.

Industry: Pharmaceutical Preparations.

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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