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ARROWHEAD PHARMACEUTICALS, INC.

For the period ended Mar 31, 2026. Filed May 7, 2026.

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About this filing

A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Mar 31, 2026 · Filed May 7, 2026

ARWR$58.16+1.2%Stored close · as of Nov 6, 2026
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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 10-Q

(Mark One)

xQUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended March 31, 2026

oTRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from to

Commission file number 001-38042

ARROWHEAD PHARMACEUTICALS, INC.

(Exact name of registrant as specified in its charter)

Delaware46-0408024
(State or other jurisdiction of incorporation or organization)(I.R.S. Employer Identification No.)

177 E. Colorado Blvd, Suite 700

Pasadena, California 91105

(626)304-3400

(Address and telephone number of principal executive offices)

Former name, former address, and former fiscal year, if changed since last report: N/A

Securities registered pursuant to Section 12(b) of the Exchange Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered
Common Stock, par value $0.001 per shareARWRThe Nasdaq Global Select Market

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes x Noo

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes x Noo

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large Accelerated FilerxAccelerated Filero
Non-Accelerated FileroSmaller Reporting Companyo
Emerging Growth Companyo

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yeso Nox

The number of shares of the registrant’s common stock outstanding as of May 1, 2026 was 140,857,021.

Page(s)
PART I — FINANCIAL INFORMATION
ITEM 1. FINANCIAL STATEMENTS1
Consolidated Balance Sheets1
Consolidated Statements of Operations and Comprehensive (Loss) Income2
Consolidated Statements of Stockholders’ Equity3
Consolidated Statements of Cash Flows4
Notes to Consolidated Financial Statements5
ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS32
ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK41
ITEM 4. CONTROLS AND PROCEDURES41
PART II — OTHER INFORMATION43
ITEM 1. LEGAL PROCEEDINGS43
ITEM 1A. RISK FACTORS43
ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS43
ITEM 3. DEFAULTS UPON SENIOR SECURITIES43
ITEM 4. MINE SAFETY DISCLOSURES43
ITEM 5. OTHER INFORMATION43
ITEM 6. EXHIBITS44
SIGNATURE45
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