Company Analysis

Annexon, Inc. (ANNX)

Nasdaq: ANNX · Pharmaceutical Preparations · Brisbane, CA · filing with the SEC since 2011
Grade5.6
◀ Past 5.2● Present 5.6▶ Future 5.8
6 est.

Filings

273 filings since 2017 beside 250 insider forms · Non-accelerated filer and smaller reporting company · read from EDGAR on Nov 13, 2026
Due nextNon-accelerated filer and smaller reporting company
10-K Annual report for the fiscal year ending Dec 31, 2026Non-accelerated filers and smaller reporting companies have 90 days after the fiscal year ends. by Mar 31, 2027
10-Q Quarterly report for the quarter ending Mar 31, 2027Non-accelerated filers and smaller reporting companies have 45 days after the quarter ends; quarter ends are taken to the month end. by May 15, 2027

A deadline is the latest date the SEC's rules allow for its filer category. It is not a forecast of the day the company files. Last time, the results release (8-K item 2.02) came 40 days after the quarter ended. The proxy statement was last filed Apr 27, 2026.

Filings a yearinsider forms included
8585870661097875
20192020202120222023202420252026

2026 counts to Nov 13, 2026.

Officer or director change (8-K item 5.02): 3 times in the last 36 months, the newest Aug 10, 2026.SEC letters: 4 in the last 36 months, the newest Aug 13, 2024.
Insider forms 250

Insider forms (3, 4, 5 and 144) are counted each year but not listed here; the people and their trades are on the Ownership tab.

FiledFormWhat it is, in plain wordsPeriodAsk
Nov 9, 2026 10-Q Quarterly report Sep 30, 2026
Nov 9, 2026 8-K items 2.02, 9.01 Results released · Current report
Nov 5, 2026 SCHEDULE 13G/A Large holder update, amended
Aug 12, 2026 10-Q Quarterly report Jun 30, 2026
Aug 12, 2026 8-K items 2.02, 8.01, 9.01 Results released; Other event · Current report
Aug 10, 2026 8-K items 5.02, 7.01, 9.01 Officer or director change; Investor disclosure (Regulation FD) · Current report
Aug 7, 2026 SCHEDULE 13G Large holder notice
Aug 6, 2026 8-K items 8.01, 9.01 Other event · Current report
Jul 30, 2026 8-K items 1.01, 2.03, 8.01, 9.01 Major agreement signed; New debt or obligation taken on; Other event · Current report
Jul 27, 2026 SCHEDULE 13G/A Large holder update, amended
Jul 8, 2026 SCHEDULE 13G/A Large holder update, amended
Jul 8, 2026 SCHEDULE 13G/A Large holder update, amended
Jun 12, 2026 8-K item 5.07 Shareholder vote · Current report Jun 11, 2026
May 15, 2026 SCHEDULE 13G/A Large holder update, amended
May 7, 2026 10-Q Quarterly report Mar 31, 2026
May 7, 2026 8-K items 2.02, 9.01 Results released · Current report
Apr 27, 2026 ARS Annual report to shareholders Dec 31, 2025
Apr 27, 2026 DEFA14A Extra proxy material
Apr 27, 2026 DEF 14A Proxy statement Jun 11, 2026
Apr 16, 2026 PRE 14A Preliminary proxy statement Jun 11, 2026
Mar 31, 2026 S-3ASR Shelf registration
Mar 31, 2026 S-8 Employee stock plan registration
Mar 30, 2026 10-K Annual report Dec 31, 2025
Mar 30, 2026 8-K items 2.02, 9.01 Results released · Current report
Mar 26, 2026 SCHEDULE 13G/A Large holder update, amended
Feb 17, 2026 8-K item 5.02 Officer or director change · Current report Feb 12, 2026
Feb 17, 2026 SCHEDULE 13G/A Large holder update, amended
Feb 5, 2026 SCHEDULE 13G/A Large holder update, amended
Jan 21, 2026 SCHEDULE 13G/A Large holder update, amended
Jan 14, 2026 8-K items 7.01, 9.01 Investor disclosure (Regulation FD) · Current report
Jan 12, 2026 8-K items 8.01, 9.01 Other event · Current report
Nov 21, 2025 SCHEDULE 13D/A Activist holder update, amended
Nov 14, 2025 8-K items 1.01, 8.01, 9.01 Major agreement signed; Other event · Current report Nov 12, 2025
Nov 13, 2025 424B5 Shelf offering
Nov 12, 2025 424B5 Shelf offering
Nov 10, 2025 10-Q Quarterly report Sep 30, 2025
Nov 10, 2025 8-K items 2.02, 9.01 Results released · Current report
Nov 5, 2025 SCHEDULE 13G/A Large holder update, amended
Oct 30, 2025 SCHEDULE 13G Large holder notice
Aug 14, 2025 10-Q Quarterly report Jun 30, 2025
40 of 273 shown

Every row opens the filing on EDGAR. The plain words are the site's own for each form and each 8-K item; the complete history, insider forms included, is on EDGAR.

SI Assistanton ANNX · research, not advice