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ARROWHEAD PHARMACEUTICALS, INC.

For the period ended Sep 10, 2025. Filed Sep 11, 2025.

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About this filing

A notice of a major event between regular reports, such as results, a deal or a change of executives. It is often the first formal record of the news.

Sep 10, 2025 · Filed Sep 11, 2025

ARWR$58.16+1.2%Stored close · as of Nov 6, 2026
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Forward-Looking Statements

This Current Report on Form 8-K contains forward-looking statements within the meaning of the "safe harbor" provisions of the Private Securities Litigation Reform Act of 1995. Any statements contained in this report except for historical information may be deemed to be forward-looking statements. Without limiting the generality of the foregoing, words such as “may,” “will,” “expect,” “believe,” “anticipate,” “hope,” “intend,” “plan,” “project,” “could,” “estimate,” “continue,” “target,” “forecast” or “continue” or the negative of these words or other variations thereof or comparable terminology are intended to identify such forward-looking statements. These forward-looking statements include, but are not limited to, statements about our planned commercialization of investigational plozasiran and beliefs and expectations regarding the merit of the Ionis letter, the validity and enforceability of the ‘333 Patent, the Company’s patent portfolio, and the Company’s claims and lawsuit against the Defendant. These statements are based upon our current expectations and speak only as of the date hereof. Our actual results or outcomes may differ materially and adversely from those expressed in any forward-looking statements as a result of numerous factors and uncertainties, including the risks and uncertainties described in our most recent Annual Report on Form 10-K, subsequent Quarterly Reports on Form 10-Q and other documents filed with the Securities and Exchange Commission from time to time. We assume no obligation to update or revise forward-looking statements to reflect new events or circumstances.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits

Exhibit No.Description
99.1Complaint for Declaratory Judgment dated September 10, 2025
99.2Press Release, dated September 11, 2025.
104Cover Page Interactive Data File (the cover page tags are embedded within the Inline XBRL document).
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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.