Company: ARWR
Filing Date: 2025-11-25
Form Type: 10-K
Source: 0000879407-25-000029
Chunk: 98

Company: ARROWHEAD PHARMACEUTICALS, INC.
Filing Date: 2025-11-25
Form: 10-K
Item: Item 1A
Chunk 98
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 without infringing on third-party rights. However, if granted marketing approval, we are currently aware of certain patent rights held by third parties that, if found to be valid and enforceable, could be alleged to render one or more of our drug products or candidates infringing. For example, as the Company previously reported in Form 8-K filed on September 12, 2025, Ionis Pharmaceuticals, Inc. (“Ionis”) filed a complaint for patent infringement against the Company in the United States District Court for the Central District of California alleging patent infringement of United States Patent No. 9,593,333 (“the ’333 patent”) (the "Ionis Claim"), which may impact our planned commercialization of REDEMPLO. See also “Our ability to protect our patents and other proprietary rights is uncertain, exposing us to the possible loss of competitive advantage.” If the Ionis Claim or any potential future claim by another party is successful, we may be required to pay substantial damages, be forced to abandon any affected drug product and/or product candidates and/or seek a license from the patent holder. In addition, the Ionis Claim and any future patent infringement claims brought against us, whether or not successful, may cause us to incur significant expenses and divert the attention of our management and key personnel from other business concerns. These could negatively affect our results of operations and prospects. We cannot be certain that patents owned or licensed by us will not be challenged, potentially successfully, by others.

In addition, if our products and/or product candidates are found to infringe the intellectual property rights of third parties, these third parties may assert infringement claims against our customers, licensees and other parties with whom we have business relationships, and we may be required to indemnify those parties for any damages they suffer as a result of these claims. The claims may require us to initiate or defend protracted and costly litigation on behalf of customers, licensees, and other parties regardless of the merits of these claims. If any of these claims succeed, we may be forced to pay damages on behalf of those parties or may be required to obtain licenses for the products they use. If we cannot obtain all necessary licenses on commercially reasonable terms, we may be unable to continue selling such products.

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We license patent rights from third-party owners and we rely on such owners to obtain, maintain and enforce the patents underlying such licenses.

We are a party to a number of licenses that give us rights to third-party intellectual property that is necessary or useful for our business. We also