ALX ONCOLOGY HOLDINGS INC SEC EDGAR Filings (CIK 0001810182)

SEC EDGAR filings, ownership reports, and insider transactions for ALX ONCOLOGY HOLDINGS INC.

Symbol
ALXO on Nasdaq
Industry
Pharmaceutical Preparations (Office Of Life Sciences)
Business address
323 Allerton Avenue, South San Francisco, CA, 94080
State of incorporation
DE
Fiscal year end
31 December
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ALX ONCOLOGY HOLDINGS INC has filed 395 SEC EDGAR filings since 05 May 2020

Latest Filings

Recent SEC filings for ALX ONCOLOGY HOLDINGS INC including 10-K, 4, 3 and more.

Form type Document Filing Description Filing date Reporting date File number(s)
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 09 Mar 2026 31 Dec 2025 001-39386
4 Open 4 document View SEC filing for 4 4 05 Mar 2026 03 Mar 2026
3 Open 3 document View SEC filing for 3 3 05 Mar 2026 25 Feb 2026
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 27 Feb 2026 27 Feb 2026 001-39386
4 Open 4 document View SEC filing for 4 4 20 Feb 2026 18 Feb 2026
4 Open 4 document View SEC filing for 4 4 19 Feb 2026 17 Feb 2026
SCHEDULE 13G Open SCHEDULE 13G document View SEC filing for SCHEDULE 13G 09 Feb 2026 005-91585
SCHEDULE 13G Open SCHEDULE 13G document View SEC filing for SCHEDULE 13G 06 Feb 2026 005-91585
SCHEDULE 13D/A Open SCHEDULE 13D/A document View SEC filing for SCHEDULE 13D/A 04 Feb 2026 005-91585
4 Open 4 document View SEC filing for 4 04 Feb 2026 02 Feb 2026
424B5 Open 424B5 document View SEC filing for 424B5 424B5 30 Jan 2026 333-285620
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 30 Jan 2026 30 Jan 2026 001-39386
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 30 Jan 2026 30 Jan 2026 001-39386
4 Open 4 document View SEC filing for 4 4 28 Jan 2026 26 Jan 2026
4 Open 4 document View SEC filing for 4 4 28 Jan 2026 26 Jan 2026
4 Open 4 document View SEC filing for 4 4 28 Jan 2026 26 Jan 2026
S-8 Open S-8 document | Open XBRL data View SEC filing for S-8 S-8 21 Jan 2026 333-292860
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 21 Jan 2026 21 Jan 2026 001-39386
4 Open 4 document View SEC filing for 4 4 21 Jan 2026 20 Jan 2026
4 Open 4 document View SEC filing for 4 4 21 Jan 2026 20 Jan 2026
4 Open 4 document View SEC filing for 4 4 21 Jan 2026 20 Jan 2026
4 Open 4 document View SEC filing for 4 4 21 Jan 2026 20 Jan 2026
4 Open 4 document View SEC filing for 4 4 21 Jan 2026 20 Jan 2026
4 Open 4 document View SEC filing for 4 4 21 Jan 2026 20 Jan 2026
4 Open 4 document View SEC filing for 4 4 07 Jan 2026 06 Jan 2026
SCHEDULE 13G/A Open SCHEDULE 13G/A document View SEC filing for SCHEDULE 13G/A 14 Nov 2025 005-91585
SCHEDULE 13G/A Open SCHEDULE 13G/A document View SEC filing for SCHEDULE 13G/A 14 Nov 2025 005-91585
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 07 Nov 2025 30 Sep 2025 001-39386
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 07 Nov 2025 07 Nov 2025 001-39386
SCHEDULE 13G/A Open SCHEDULE 13G/A document View SEC filing for SCHEDULE 13G/A 22 Oct 2025 005-91585
4 Open 4 document View SEC filing for 4 4 16 Oct 2025 14 Oct 2025
4 Open 4 document View SEC filing for 4 4 16 Oct 2025 14 Oct 2025
4 Open 4 document View SEC filing for 4 4 16 Oct 2025 14 Oct 2025
SCHEDULE 13G Open SCHEDULE 13G document View SEC filing for SCHEDULE 13G 08 Oct 2025 005-91585
4 Open 4 document View SEC filing for 4 4 19 Sep 2025 17 Sep 2025
4 Open 4 document View SEC filing for 4 4 18 Sep 2025 16 Sep 2025
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 12 Sep 2025 11 Sep 2025 001-39386
4 Open 4 document View SEC filing for 4 4 20 Aug 2025 18 Aug 2025
4 Open 4 document View SEC filing for 4 4 19 Aug 2025 15 Aug 2025
4 Open 4 document View SEC filing for 4 4 19 Aug 2025 15 Aug 2025
SCHEDULE 13G/A Open SCHEDULE 13G/A document View SEC filing for SCHEDULE 13G/A 14 Aug 2025 005-91585
4 Open 4 document View SEC filing for 4 4 13 Aug 2025 12 Aug 2025
3 Open 3 document View SEC filing for 3 3 13 Aug 2025 12 Aug 2025
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 12 Aug 2025 30 Jun 2025 001-39386
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 12 Aug 2025 12 Aug 2025 001-39386
4 Open 4 document View SEC filing for 4 4 08 Jul 2025 07 Jul 2025
4 Open 4 document View SEC filing for 4 4 01 Jul 2025 30 Jun 2025
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 12 Jun 2025 11 Jun 2025 001-39386
SCHEDULE 13G/A Open SCHEDULE 13G/A document View SEC filing for SCHEDULE 13G/A 15 May 2025 005-91585
SCHEDULE 13G/A Open SCHEDULE 13G/A document View SEC filing for SCHEDULE 13G/A 15 May 2025 005-91585
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 08 May 2025 31 Mar 2025 001-39386
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 08 May 2025 08 May 2025 001-39386
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 25 Apr 2025 23 Apr 2025 001-39386
EFFECT Open EFFECT document View SEC filing for EFFECT 24 Apr 2025 333-285620
CORRESP Open CORRESP document View SEC filing for CORRESP 23 Apr 2025
ARS Open ARS document View SEC filing for ARS ARS 21 Apr 2025 31 Dec 2024 001-39386
DEF 14A Open DEF 14A document | Open XBRL data View SEC filing for DEF 14A DEF 14A 21 Apr 2025 21 Apr 2025 001-39386
4 Open 4 document View SEC filing for 4 15 Apr 2025 11 Apr 2025
4 Open 4 document View SEC filing for 4 15 Apr 2025 11 Apr 2025
4 Open 4 document View SEC filing for 4 15 Apr 2025 11 Apr 2025
4 Open 4 document View SEC filing for 4 15 Apr 2025 11 Apr 2025
4 Open 4 document View SEC filing for 4 18 Mar 2025 14 Mar 2025
4 Open 4 document View SEC filing for 4 18 Mar 2025 14 Mar 2025
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 11 Mar 2025 333-285620
S-3 Open S-3 document View SEC filing for S-3 S-3 06 Mar 2025 333-285620
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 06 Mar 2025 31 Dec 2024 001-39386
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 06 Mar 2025 06 Mar 2025 001-39386
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 05 Mar 2025 28 Feb 2025 001-39386
4 Open 4 document View SEC filing for 4 21 Feb 2025 19 Feb 2025
4 Open 4 document View SEC filing for 4 21 Feb 2025 19 Feb 2025
4 Open 4 document View SEC filing for 4 21 Feb 2025 19 Feb 2025
SCHEDULE 13G/A Open SCHEDULE 13G/A document View SEC filing for SCHEDULE 13G/A 14 Feb 2025 005-91585
4 Open 4 document View SEC filing for 4 23 Jan 2025 21 Jan 2025
4 Open 4 document View SEC filing for 4 23 Jan 2025 21 Jan 2025
4 Open 4 document View SEC filing for 4 23 Jan 2025 21 Jan 2025
4 Open 4 document View SEC filing for 4 23 Jan 2025 21 Jan 2025
3 Open 3 document View SEC filing for 3 23 Jan 2025 21 Jan 2025
4 Open 4 document View SEC filing for 4 23 Jan 2025 21 Jan 2025
3 Open 3 document View SEC filing for 3 23 Jan 2025 21 Jan 2025
4 Open 4 document View SEC filing for 4 23 Jan 2025 21 Jan 2025
3 Open 3 document View SEC filing for 3 23 Jan 2025 21 Jan 2025
4 Open 4 document View SEC filing for 4 23 Jan 2025 21 Jan 2025
4 Open 4 document View SEC filing for 4 23 Jan 2025 21 Jan 2025
4 Open 4 document View SEC filing for 4 23 Jan 2025 21 Jan 2025
4 Open 4 document View SEC filing for 4 23 Jan 2025 21 Jan 2025
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 22 Jan 2025 16 Jan 2025 001-39386
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 17 Jan 2025 16 Jan 2025 001-39386
S-8 Open S-8 document View SEC filing for S-8 S-8 17 Jan 2025 333-284348
4 Open 4 document View SEC filing for 4 08 Jan 2025 06 Jan 2025
4 Open 4 document View SEC filing for 4 02 Jan 2025 30 Dec 2024
4 Open 4 document View SEC filing for 4 02 Jan 2025 30 Dec 2024
SC TO-I/A Open SC TO-I/A document View SEC filing for SC TO-I/A SC TO-I/A 31 Dec 2024 005-91585
SCHEDULE 13G Open SCHEDULE 13G document View SEC filing for SCHEDULE 13G 27 Dec 2024 005-91585
SCHEDULE 13G/A Open SCHEDULE 13G/A document View SEC filing for SCHEDULE 13G/A 06 Dec 2024 005-91585
4 Open 4 document View SEC filing for 4 04 Dec 2024 02 Dec 2024
4 Open 4 document View SEC filing for 4 04 Dec 2024 02 Dec 2024
4 Open 4 document View SEC filing for 4 04 Dec 2024 02 Dec 2024
SC TO-I Open SC TO-I document View SEC filing for SC TO-I SC TO-I 02 Dec 2024 005-91585
4 Open 4 document View SEC filing for 4 19 Nov 2024 18 Nov 2024
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A AMENDMENT NO. 2 14 Nov 2024 005-91585
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A AMENDMENT NO. 1 TO SCHEDULE 13G 14 Nov 2024 005-91585
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 14 Nov 2024 005-91585
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 14 Nov 2024 08 Nov 2024 001-39386
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 12 Nov 2024 005-91585
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 07 Nov 2024 30 Sep 2024 001-39386
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 07 Nov 2024 05 Nov 2024 001-39386
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 10 Oct 2024 005-91585
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 04 Oct 2024 30 Sep 2024 001-39386
SC 13G Open SC 13G document View SEC filing for SC 13G 22 Aug 2024 005-91585
4 Open 4 document View SEC filing for 4 16 Aug 2024 14 Aug 2024
4 Open 4 document View SEC filing for 4 16 Aug 2024 14 Aug 2024
4 Open 4 document View SEC filing for 4 16 Aug 2024 14 Aug 2024
4 Open 4 document View SEC filing for 4 16 Aug 2024 14 Aug 2024
4 Open 4 document View SEC filing for 4 16 Aug 2024 14 Aug 2024
SC 13G Open SC 13G document View SEC filing for SC 13G 13 Aug 2024 005-91585
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 12 Aug 2024 30 Jun 2024 001-39386
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 08 Aug 2024 08 Aug 2024 001-39386
4 Open 4 document View SEC filing for 4 07 Aug 2024 05 Aug 2024
3 Open 3 document View SEC filing for 3 07 Aug 2024 05 Aug 2024
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 06 Aug 2024 05 Aug 2024 001-39386
4 Open 4 document View SEC filing for 4 15 Jul 2024 11 Jul 2024
144 Open 144 document View SEC filing for 144 11 Jul 2024 001-39386
4 Open 4 document View SEC filing for 4 09 Jul 2024 05 Jul 2024
4 Open 4 document View SEC filing for 4 03 Jul 2024 01 Jul 2024
4 Open 4 document View SEC filing for 4 03 Jul 2024 01 Jul 2024
4 Open 4 document View SEC filing for 4 03 Jul 2024 01 Jul 2024
4 Open 4 document View SEC filing for 4 02 Jul 2024 28 Jun 2024
4/A Open 4/A document View SEC filing for 4/A 24 Jun 2024 13 Jun 2024
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 17 Jun 2024 12 Jun 2024 001-39386
4 Open 4 document View SEC filing for 4 17 Jun 2024 13 Jun 2024
4 Open 4 document View SEC filing for 4 14 Jun 2024 13 Jun 2024
4 Open 4 document View SEC filing for 4 14 Jun 2024 13 Jun 2024
4 Open 4 document View SEC filing for 4 14 Jun 2024 13 Jun 2024
4 Open 4 document View SEC filing for 4 06 Jun 2024 04 Jun 2024
144 Open 144 document View SEC filing for 144 04 Jun 2024 001-39386
4 Open 4 document View SEC filing for 4 15 May 2024 13 May 2024
144 Open 144 document View SEC filing for 144 13 May 2024 001-39386
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 09 May 2024 31 Mar 2024 001-39386
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 09 May 2024 09 May 2024 001-39386
4 Open 4 document View SEC filing for 4 08 May 2024 06 May 2024
144 Open 144 document View SEC filing for 144 06 May 2024 001-39386
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFA14A 02 May 2024 001-39386
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 02 May 2024 28 Apr 2024 001-39386
ARS Open ARS document View SEC filing for ARS ARS 23 Apr 2024 31 Dec 2023 001-39386
DEF 14A Open DEF 14A document View SEC filing for DEF 14A DEF 14A 22 Apr 2024 12 Jun 2024 001-39386
4 Open 4 document View SEC filing for 4 18 Apr 2024 16 Apr 2024
144 Open 144 document View SEC filing for 144 16 Apr 2024 001-39386
4 Open 4 document View SEC filing for 4 05 Apr 2024 04 Apr 2024
144 Open 144 document View SEC filing for 144 04 Apr 2024 001-39386
4 Open 4 document View SEC filing for 4 18 Mar 2024 14 Mar 2024
S-8 Open S-8 document View SEC filing for S-8 S-8 08 Mar 2024 333-277765
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 07 Mar 2024 31 Dec 2023 001-39386
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 07 Mar 2024 07 Mar 2024 001-39386
4 Open 4 document View SEC filing for 4 16 Feb 2024 14 Feb 2024
4 Open 4 document View SEC filing for 4 16 Feb 2024 14 Feb 2024
4 Open 4 document View SEC filing for 4 16 Feb 2024 14 Feb 2024
4 Open 4 document View SEC filing for 4 16 Feb 2024 14 Feb 2024
4 Open 4 document View SEC filing for 4 16 Feb 2024 14 Feb 2024
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A AMENDMENT NO. 1 14 Feb 2024 005-91585
SC 13D/A Open SC 13D/A document View SEC filing for SC 13D/A SC 13D/A 14 Feb 2024 005-91585
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SC 13G/A 14 Feb 2024 005-91585
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 09 Feb 2024 005-91585
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 05 Jan 2024 04 Jan 2024
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 03 Jan 2024 29 Dec 2023
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 03 Jan 2024 29 Dec 2023
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 03 Jan 2024 29 Dec 2023
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 03 Jan 2024 29 Dec 2023
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 26 Dec 2023 22 Dec 2023 001-39386
SC 13D/A Open SC 13D/A document View SEC filing for SC 13D/A SC 13D/A 20 Dec 2023 005-91585
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 13 Nov 2023 30 Sep 2023 001-39386
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 13 Nov 2023 13 Nov 2023 001-39386
SC 13G Open SC 13G document View SEC filing for SC 13G SC 13G 16 Oct 2023 005-91585
SC 13G Open SC 13G document View SEC filing for SC 13G 13 Oct 2023 005-91585
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 06 Oct 2023 04 Oct 2023 001-39386
424B5 Open 424B5 document View SEC filing for 424B5 424B5 06 Oct 2023 333-263863
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 04 Oct 2023 04 Oct 2023 001-39386
424B5 Open 424B5 document View SEC filing for 424B5 424B5 04 Oct 2023 333-263863
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 04 Oct 2023 03 Oct 2023 001-39386
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 12 Sep 2023 08 Sep 2023
EFFECT Open EFFECT document View SEC filing for EFFECT 08 Sep 2023 333-274314
424B3 Open 424B3 document View SEC filing for 424B3 424B3 08 Sep 2023 333-274314
CORRESP Open CORRESP document View SEC filing for CORRESP 07 Sep 2023
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 06 Sep 2023
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 06 Sep 2023 01 Sep 2023 001-39386
S-3 Open S-3 document View SEC filing for S-3 S-3 01 Sep 2023 333-274314
424B5 Open 424B5 document View SEC filing for 424B5 424B5 25 Aug 2023 333-263863
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 10 Aug 2023 30 Jun 2023 001-39386
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 10 Aug 2023 10 Aug 2023 001-39386
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 27 Jul 2023 25 Jul 2023
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 27 Jul 2023 25 Jul 2023
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 27 Jul 2023 25 Jul 2023
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 27 Jul 2023 25 Jul 2023
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 07 Jul 2023 06 Jul 2023
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 05 Jul 2023 30 Jun 2023
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 05 Jul 2023 30 Jun 2023
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 05 Jul 2023 30 Jun 2023
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 05 Jul 2023 30 Jun 2023
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 22 Jun 2023 20 Jun 2023
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 22 Jun 2023 20 Jun 2023
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 22 Jun 2023 20 Jun 2023
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 22 Jun 2023 20 Jun 2023
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 22 Jun 2023 20 Jun 2023
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 22 Jun 2023 20 Jun 2023
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 20 Jun 2023 16 Jun 2023 001-39386
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 13 Jun 2023 09 Jun 2023
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 11 May 2023 31 Mar 2023 001-39386
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 11 May 2023 11 May 2023 001-39386
ARS Open ARS document View SEC filing for ARS ARS 24 Apr 2023 31 Dec 2022 001-39386
DEF 14A Open DEF 14A document View SEC filing for DEF 14A DEF 14A 24 Apr 2023 16 Jun 2023 001-39386
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 13 Mar 2023 10 Mar 2023 001-39386
S-8 Open S-8 document View SEC filing for S-8 S-8 09 Mar 2023 333-270424
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 09 Mar 2023 31 Dec 2022 001-39386
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 09 Mar 2023 09 Mar 2023 001-39386
SC 13G Open SC 13G document View SEC filing for SC 13G SCHEDULE 13G 14 Feb 2023 005-91585
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 09 Feb 2023 005-91585
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 03 Jan 2023 29 Dec 2022
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 03 Jan 2023 29 Dec 2022
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 03 Jan 2023 29 Dec 2022
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 03 Jan 2023 29 Dec 2022
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 20 Dec 2022 16 Dec 2022
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 29 Nov 2022 28 Nov 2022
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 29 Nov 2022 28 Nov 2022
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 29 Nov 2022 28 Nov 2022 001-39386
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 08 Nov 2022 30 Sep 2022 001-39386
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 08 Nov 2022 08 Nov 2022 001-39386
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 31 Oct 2022 27 Oct 2022 001-39386
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 10 Aug 2022 005-91585
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 09 Aug 2022 05 Aug 2022
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 09 Aug 2022 05 Aug 2022
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 09 Aug 2022 05 Aug 2022
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 09 Aug 2022 05 Aug 2022
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 08 Aug 2022 30 Jun 2022 001-39386
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 08 Aug 2022 08 Aug 2022 001-39386
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 16 Jun 2022 15 Jun 2022
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 16 Jun 2022 15 Jun 2022
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 16 Jun 2022 15 Jun 2022
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 16 Jun 2022 15 Jun 2022
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 16 Jun 2022 15 Jun 2022
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 16 Jun 2022 14 Jun 2022 001-39386
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SEC SCHEDULE 13G 10 Jun 2022 005-91585
EFFECT Open EFFECT document View SEC filing for EFFECT 31 May 2022 333-258812
POS AM Open POS AM document View SEC filing for POS AM POS AM 27 May 2022 333-258812
EFFECT Open EFFECT document View SEC filing for EFFECT 25 May 2022 333-263863
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 S-3/A 13 May 2022 333-263863
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 09 May 2022 31 Mar 2022 001-39386
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 09 May 2022 09 May 2022 001-39386
DEF 14A Open DEF 14A document View SEC filing for DEF 14A DEF 14A 22 Apr 2022 14 Jun 2022 001-39386
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 14 Apr 2022 11 Apr 2022
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 14 Apr 2022 11 Apr 2022
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 12 Apr 2022 11 Apr 2022 001-39386
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 29 Mar 2022
S-3 Open S-3 document View SEC filing for S-3 S-3 25 Mar 2022 333-263863
S-8 Open S-8 document View SEC filing for S-8 S-8 28 Feb 2022 333-263090
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 28 Feb 2022 31 Dec 2021 001-39386
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K Q4'21 8-K/PR 28 Feb 2022 28 Feb 2022 001-39386
SC 13G Open SC 13G document View SEC filing for SC 13G 09 Feb 2022 005-91585
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 08 Feb 2022 07 Feb 2022
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 07 Feb 2022 03 Feb 2022
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SEC SCHEDULE 13G 04 Feb 2022 005-91585
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 01 Feb 2022 28 Jan 2022
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 17 Dec 2021 17 Dec 2021 001-39386
424B5 Open 424B5 document View SEC filing for 424B5 424B5 17 Dec 2021 333-258812
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 16 Dec 2021 15 Dec 2021
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 15 Dec 2021 13 Dec 2021
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 15 Dec 2021 13 Dec 2021
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 10 Dec 2021 08 Dec 2021
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 10 Dec 2021 08 Dec 2021
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 23 Nov 2021 22 Nov 2021
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q Q3'21 10-Q 12 Nov 2021 30 Sep 2021 001-39386
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K Q3'21 8-K 12 Nov 2021 11 Nov 2021 001-39386
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 20 Oct 2021 19 Oct 2021
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 20 Oct 2021 19 Oct 2021
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 19 Oct 2021 18 Oct 2021
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 12 Oct 2021 11 Oct 2021
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K SCALMIBIO ACQUISITION 07 Oct 2021 04 Oct 2021 001-39386
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 21 Sep 2021 20 Sep 2021
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 17 Sep 2021 16 Sep 2021
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 13 Sep 2021 10 Sep 2021
SC 13G Open SC 13G document View SEC filing for SC 13G SEC SCHEDULE 13G 10 Sep 2021 005-91585
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 27 Aug 2021 26 Aug 2021 001-39386
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 24 Aug 2021 23 Aug 2021
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 20 Aug 2021 19 Aug 2021
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 18 Aug 2021 17 Aug 2021
S-3ASR Open S-3ASR document View SEC filing for S-3ASR S-3ASR 13 Aug 2021 333-258812
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 12 Aug 2021 30 Jun 2021 001-39386
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 12 Aug 2021 12 Aug 2021 001-39386
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 11 Aug 2021 10 Aug 2021
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 03 Aug 2021 30 Jul 2021
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 03 Aug 2021 30 Jul 2021
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 03 Aug 2021 30 Jul 2021
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 03 Aug 2021 30 Jul 2021
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 20 Jul 2021 19 Jul 2021
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 14 Jul 2021 12 Jul 2021
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 22 Jun 2021 21 Jun 2021
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 15 Jun 2021 11 Jun 2021
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 15 Jun 2021 11 Jun 2021
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 15 Jun 2021 11 Jun 2021
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 15 Jun 2021 11 Jun 2021
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 15 Jun 2021 11 Jun 2021
8-K Open 8-K document View SEC filing for 8-K 8-K 15 Jun 2021 10 Jun 2021 001-39386
SC 13D/A Open SC 13D/A document View SEC filing for SC 13D/A 15 Jun 2021 005-91585
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 14 Jun 2021 10 Jun 2021
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 20 May 2021 19 May 2021
4/A Open 4/A document View SEC filing for 4/A FORM 4/A SUBMISSION 19 May 2021 03 May 2021
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 17 May 2021 31 Mar 2021 001-39386
8-K Open 8-K document View SEC filing for 8-K 8-K 17 May 2021 17 May 2021 001-39386
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 11 May 2021 10 May 2021
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
8-K Open 8-K document View SEC filing for 8-K 8-K 04 May 2021 03 May 2021 001-39386
DEF 14A Open DEF 14A document View SEC filing for DEF 14A DEFINITIVE PROXY STATEMENT 29 Apr 2021 10 Jun 2021 001-39386
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 21 Apr 2021 19 Apr 2021
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 13 Apr 2021 12 Apr 2021
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 26 Mar 2021 25 Mar 2021
8-K Open 8-K document View SEC filing for 8-K 8-K PAO RESIGNATION 25 Mar 2021 22 Mar 2021 001-39386
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 24 Mar 2021 22 Mar 2021
S-8 Open S-8 document View SEC filing for S-8 S-8 18 Mar 2021 333-254459
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 18 Mar 2021 31 Dec 2020 001-39386
8-K Open 8-K document View SEC filing for 8-K 8-K 18 Mar 2021 18 Mar 2021 001-39386
8-K Open 8-K document View SEC filing for 8-K 8-K 15 Mar 2021 11 Mar 2021 001-39386
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 12 Mar 2021 10 Mar 2021
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 29 Jan 2021 28 Jan 2021
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 28 Jan 2021 26 Jan 2021
8-K Open 8-K document View SEC filing for 8-K 8-K 23 Dec 2020 22 Dec 2020 001-39386
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 15 Dec 2020 14 Dec 2020
424B4 Open 424B4 document View SEC filing for 424B4 424B4 11 Dec 2020 333-251171
EFFECT Open EFFECT document View SEC filing for EFFECT 09 Dec 2020 333-251171
S-1MEF Open S-1MEF document View SEC filing for S-1MEF S-1MEF 09 Dec 2020 333-251248
CORRESP Open CORRESP document View SEC filing for CORRESP 07 Dec 2020
CORRESP Open CORRESP document View SEC filing for CORRESP 07 Dec 2020
S-1 Open S-1 document | Open XBRL data View SEC filing for S-1 S-1 07 Dec 2020 333-251171
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 25 Nov 2020
DRS Open DRS document View SEC filing for DRS 24 Nov 2020 377-03819
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 12 Nov 2020 30 Sep 2020 001-39386
8-K Open 8-K document View SEC filing for 8-K 8-K 12 Nov 2020 12 Nov 2020 001-39386
SC 13D Open SC 13D document View SEC filing for SC 13D 01 Oct 2020 005-91585
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 27 Aug 2020 30 Jun 2020 001-39386
8-K Open 8-K document View SEC filing for 8-K 8-K 27 Aug 2020 27 Aug 2020 001-39386
SC 13D Open SC 13D document View SEC filing for SC 13D 26 Aug 2020 005-91585
SC 13D Open SC 13D document View SEC filing for SC 13D SC 13D 31 Jul 2020 005-91585
SC 13G Open SC 13G document View SEC filing for SC 13G SCHEDULE 13G 29 Jul 2020 005-91585
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 22 Jul 2020 21 Jul 2020
3/A Open 3/A document View SEC filing for 3/A FORM 3/A SUBMISSION 22 Jul 2020 16 Jul 2020
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 21 Jul 2020 21 Jul 2020
4 Open 4 document View SEC filing for 4 21 Jul 2020 21 Jul 2020
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 21 Jul 2020 21 Jul 2020
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 21 Jul 2020 21 Jul 2020
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 21 Jul 2020 21 Jul 2020
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 21 Jul 2020 21 Jul 2020
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 21 Jul 2020 21 Jul 2020
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 21 Jul 2020 21 Jul 2020
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 21 Jul 2020 21 Jul 2020
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 21 Jul 2020 21 Jul 2020
8-K Open 8-K document View SEC filing for 8-K 8-K 21 Jul 2020 21 Jul 2020 001-39386
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 17 Jul 2020 16 Jul 2020
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 17 Jul 2020 16 Jul 2020
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 17 Jul 2020 16 Jul 2020
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 17 Jul 2020 16 Jul 2020
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 17 Jul 2020 16 Jul 2020
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 17 Jul 2020 16 Jul 2020
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 17 Jul 2020 16 Jul 2020
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 17 Jul 2020 16 Jul 2020
4 Open 4 document View SEC filing for 4 FORM 4 SUBMISSION 17 Jul 2020 16 Jul 2020
S-8 Open S-8 document View SEC filing for S-8 S-8 17 Jul 2020 333-239927
424B4 Open 424B4 document View SEC filing for 424B4 424B4 17 Jul 2020 333-239490
EFFECT Open EFFECT document View SEC filing for EFFECT 16 Jul 2020 333-239490
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 16 Jul 2020 16 Jul 2020
S-1MEF Open S-1MEF document View SEC filing for S-1MEF S-1MEF 16 Jul 2020 333-239895
3 Open 3 document View SEC filing for 3 16 Jul 2020 16 Jul 2020
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 16 Jul 2020 16 Jul 2020
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 16 Jul 2020 16 Jul 2020
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 16 Jul 2020 16 Jul 2020
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 16 Jul 2020 16 Jul 2020
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 16 Jul 2020 16 Jul 2020
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 16 Jul 2020 16 Jul 2020
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 16 Jul 2020 16 Jul 2020
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 16 Jul 2020 16 Jul 2020
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 16 Jul 2020 16 Jul 2020
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 16 Jul 2020 16 Jul 2020
3 Open 3 document View SEC filing for 3 FORM 3 SUBMISSION 16 Jul 2020 16 Jul 2020
CERT Open CERT document View SEC filing for CERT 16 Jul 2020 001-39386
CORRESP Open CORRESP document View SEC filing for CORRESP 14 Jul 2020
CORRESP Open CORRESP document View SEC filing for CORRESP 14 Jul 2020
8-A12B Open 8-A12B document View SEC filing for 8-A12B 8-A12B 13 Jul 2020 001-39386
S-1/A Open S-1/A document View SEC filing for S-1/A AMENDMENT NO. 1 TO FORM S-1 13 Jul 2020 333-239490
CORRESP Open CORRESP document View SEC filing for CORRESP 02 Jul 2020
CORRESP Open CORRESP document View SEC filing for CORRESP 26 Jun 2020
S-1 Open S-1 document View SEC filing for S-1 FORM S-1 26 Jun 2020 333-239490
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 24 Jun 2020
DRSLTR Open DRSLTR document View SEC filing for DRSLTR 12 Jun 2020
DRS/A Open DRS/A document View SEC filing for DRS/A 12 Jun 2020 377-03152
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 02 Jun 2020
DRSLTR Open DRSLTR document View SEC filing for DRSLTR 05 May 2020
DRS Open DRS document View SEC filing for DRS 05 May 2020 377-03152

About this filer

ALX ONCOLOGY HOLDINGS INC files with the SEC under CIK 0001810182. 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.
How often is this page updated?
Updates follow new EDGAR submissions and periodic data refreshes.

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