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ARROWHEAD PHARMACEUTICALS, INC.

For the period ended Sep 30, 2025. Filed Nov 25, 2025.

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A company's yearly report to the SEC, with audited financial statements. It is the fullest account a company gives of its business, its finances and the risks it sees.

FY2025 · Filed Nov 25, 2025

ARWR$49.24-15.3%Stored close · as of Nov 9, 2026

Extracted filing text, with the paragraph anchors used by the comparison.

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Contents

ITEM 9B. OTHER INFORMATION

(b)Trading Plans

During the fiscal quarter ended September 30, 2025, the following directors and officers (as defined in Exchange Act Rule 16a-1(f)) adopted certain trading plans intended to satisfy Rule 10b5-1(c):

NameTitleAdoption or Termination DatePlan End DateShares Vesting and Subject to Sell-To-Cover (1)Other Shares Being Sold (Subject to Certain Conditions)
Adeoye OlukotunBoard Member09/04/202512/24/2025n/a10,000
Christopher AnzalonePresident and Chief Executive Officer09/19/202512/24/202650,000n/a
Daniel ApelChief Financial Officer09/16/202504/30/202625,000n/a
James HamiltonChief Medical Officer, Head of R&D09/03/202501/16/202672,500n/a
Mauro FerrariBoard Member09/25/202512/31/2025n/a7,530
Patrick O'BrienChief Operating Officer & General Counsel09/03/202501/07/202677,50020,000
Victoria VakienerBoard Member09/03/202512/31/2025n/a10,040
William WaddillBoard Member09/03/202512/31/2025n/a8,367

(1) This column indicates the total number of shares vesting, but the 10b5-1 Plan provides for the sale of only those shares necessary to satisfy payment of applicable withholding taxes.

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The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.