Company Analysis

Arrowhead Pharmaceuticals, Inc. (ARWR)

Nasdaq: ARWR · Pharmaceutical Preparations · Pasadena, CA · filing with the SEC since 1998
Grade4.7
◀ Past 5.5● Present 4.8▶ Future 4.0
1 est.

Filings

267 filings since 2017 beside 379 insider forms · Large accelerated filer · read from EDGAR on Nov 13, 2026
Due nextLarge accelerated filer
10-Q Quarterly report for the quarter ending Dec 31, 2026Large accelerated filers have 40 days after the quarter ends; quarter ends are taken to the month end. by Feb 9, 2027
10-K Annual report for the fiscal year ending Sep 30, 2027Large accelerated filers have 60 days after the fiscal year ends. by Nov 29, 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 43 days after the quarter ended. The proxy statement was last filed Jan 27, 2026.

Filings a yearinsider forms included
71615250698810062
20192020202120222023202420252026

2026 counts to Nov 13, 2026.

Officer or director change (8-K item 5.02): 7 times in the last 36 months, the newest Jun 16, 2026.Auditor change (8-K item 4.01): 1 time in the last 36 months, the newest Dec 5, 2023.
Insider forms 379

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 12, 2026 10-K Annual report Sep 30, 2026
Nov 12, 2026 8-K items 2.02, 9.01 Results released · Current report
Nov 5, 2026 SCHEDULE 13G/A Large holder update, amended
Nov 4, 2026 8-K items 1.01, 2.03 Major agreement signed; New debt or obligation taken on · Current report
Aug 14, 2026 SCHEDULE 13G/A Large holder update, amended
Aug 4, 2026 8-K items 2.02, 9.01 Results released · Current report
Aug 4, 2026 10-Q Quarterly report Jun 30, 2026
Jul 31, 2026 SCHEDULE 13G/A Large holder update, amended
Jul 27, 2026 SCHEDULE 13G/A Large holder update, amended
Jun 16, 2026 8-K items 5.02, 9.01 Officer or director change · Current report Jun 12, 2026
May 7, 2026 S-8 Employee stock plan registration
May 7, 2026 10-Q Quarterly report Mar 31, 2026
May 7, 2026 8-K items 2.02, 9.01 Results released · Current report
May 6, 2026 SCHEDULE 13G Large holder notice
Apr 29, 2026 SCHEDULE 13G Large holder notice
Apr 28, 2026 SCHEDULE 13G Large holder notice
Apr 24, 2026 SCHEDULE 13G/A Large holder update, amended
Mar 26, 2026 SCHEDULE 13G/A Large holder update, amended
Mar 20, 2026 8-K items 5.07, 9.01 Shareholder vote · Current report Mar 19, 2026
Feb 5, 2026 10-Q Quarterly report Dec 31, 2025
Feb 5, 2026 8-K items 2.02, 9.01 Results released · Current report
Jan 27, 2026 ARS Annual report to shareholders Jan 26, 2026
Jan 27, 2026 DEFA14A Extra proxy material
Jan 27, 2026 DEF 14A Proxy statement Jan 26, 2026
Jan 21, 2026 SCHEDULE 13G/A Large holder update, amended
Jan 12, 2026 8-K items 1.01, 2.03, 9.01 Major agreement signed; New debt or obligation taken on · Current report
Jan 9, 2026 8-K items 1.01, 8.01, 9.01 Major agreement signed; Other event · Current report Jan 7, 2026
Jan 9, 2026 424B5 Shelf offering
Jan 9, 2026 424B5 Shelf offering
Jan 8, 2026 305B2 Form 305B2
Jan 8, 2026 FWP Offering communication
Jan 8, 2026 FWP Offering communication
Jan 7, 2026 424B5 Shelf offering
Jan 7, 2026 424B5 Shelf offering
Jan 6, 2026 8-K items 7.01, 8.01, 9.01 Investor disclosure (Regulation FD); Other event · Current report
Dec 11, 2025 S-3ASR Shelf registration
Nov 25, 2025 10-K Annual report Sep 30, 2025
Nov 25, 2025 8-K items 2.02, 9.01 Results released · Current report
Nov 18, 2025 8-K items 8.01, 9.01 Other event · Current report
Oct 10, 2025 10-K/A Annual report, amended Sep 30, 2024
40 of 267 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 ARWR · research, not advice