Arrowhead Pharmaceuticals, Inc. (ARWR) Institutional Ownership & Insider Trading

499 institutions reported holding Arrowhead Pharmaceuticals, Inc. shares in 13F filings for the quarter ended 2026-06-30, according to EquiReason's reading of their SEC filings. 65 insider trades on Form 4 since 2025-10-01.

Source: SEC EDGAR filings · figures as of 2026-06-30 · read by EquiReason

ARWRArrowhead Pharmaceuticals, Inc.Follow ARWR — free

Biotechnology · Healthcare

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Market cap: 8.2B
P/E TTM: —
Dividend yield: —
52-week: —
Next earnings: 23 Nov, in 30 days

Institutions · all 13F filers

quarter to 30 Jun 2026 · filers in both quarters

499 institutions held 84.6% of the shares. Across filers that reported both quarters, shares held changed -4.2%.

Largest moves, shares (millions)

Institutional flow by quarter

net shares added or trimmed, millions · filers in both quarters

Quarter	Holders	Shares held, M	Change	Increased	New	Decreased	Closed
Jun 26	499	120	-4.2%	137	110	143	48
Mar 26	430	121	+7.9%	160	87	101	54
Dec 25	396	116	+2.1%	116	101	104	22
Sep 25	296	112	+7.3%	91	56	71	34
Jun 25	278	106	+0.4%	88	50	74	33
Mar 25	259	103	+6.1%	83	38	74	45
Dec 24	270	100	-0.1%	81	29	76	36
Sep 24	266	96	-2.1%	82	27	80	30

Arrowhead Pharmaceuticals, Inc. — questions

Who owns Arrowhead Pharmaceuticals, Inc. stock?: 499 institutions reported Arrowhead Pharmaceuticals, Inc. shares in 13F filings for the quarter ended 2026-06-30. The largest: BlackRock, Inc. (10.5%), Avoro Capital Advisors LLC (8.0%), FMR LLC (5.7%).
Are Arrowhead Pharmaceuticals, Inc. insiders buying or selling?: 65 insider trades on Form 4 since 2025-10-01; the full list, with dates, people and plan status, is on this page.

Every figure on this page comes from Arrowhead Pharmaceuticals, Inc.'s own SEC filings — see them on SEC EDGAR. Price data is licensed and shown only inside the product.

How these figures are read: methodology · EquiReason.

Important information. Figures on this page are taken from filings submitted to the U.S. Securities and Exchange Commission (SEC) and processed automatically by EquiReason. They may contain errors, omissions or delays, and EquiReason makes no representation or warranty as to their accuracy, completeness or timeliness. Always verify figures against the original filing on SEC EDGAR before relying on them.

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