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ARWR Institutional Ownership & 13F Holders | SmartMoneyDB

ARWRARROWHEAD PHARMACEUTICALS IN

COM · CUSIP 04280A100

Smart Money Ownership

Of the 14 tracked institutions holding ARWR, 7 have a 3-year clone track record — 6 of them beat the S&P. Average holder's clone alpha: +5.7pt. It's a gauge of who owns the name, not just how many.

$65.0M · 0.1% of book

ARWR (ARROWHEAD PHARMACEUTICALS IN) Institutional Ownership Summary

Among the 14 tracked institutional investors we monitor, ARWR (ARROWHEAD PHARMACEUTICALS IN) is held with a combined value of $3.37B across 52,904,042 shares. The largest holder is BlackRock, Inc. with a position worth $1.14B (0.02% of their portfolio). RENAISSANCE TECHNOLOGIES LLC opened a new position in the most recent quarter. 7 funds increased their holdings. 6 funds reduced their position.

Total Institutional Value

$3.37B

Total Shares Held

52,904,042

Institutional Holders

% of Shares Outstanding

37.6%

of 140.86M shares · SEC 2026-05-01

Days to Cover

2.2-28.2%

8.43M shares short · FINRA 2026-06-30

Tracked 13F institutions hold 37.6% of ARWR's shares outstanding. This is a floor: 13F filings arrive on a ~45-day lag and we track only a subset of institutional filers, so true institutional ownership is higher. Shares-outstanding is the latest SEC cover-page figure (as of 2026-05-01), not a live float.

This Quarter's Biggest Movers

Ranked by estimated dollars moved (share change × implied price). 13F data lags up to 45 days.

Biggest Buyers

RENAISSANCE TECHNOLOGIES LLCNew position~$65.0M FMR LLC+11% shares~$46.6M PRICE T ROWE ASSOCIATES INC /MD/+24% shares~$12.8M STATE STREET CORP+1% shares~$5.6M Bridgewater Associates, LP+59% shares~$2.2M

13F Institutional Holders

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BAKER BROS. ADVISORS LP

0.72% of book-8.4%

$124.95M

Fisher Asset Management, LLC

0.02% of book-15.1%

$69.82M

PRICE T ROWE ASSOCIATES INC /MD/

0.01% of book+24.4%

$65.44M

RENAISSANCE TECHNOLOGIES LLC

0.10% of bookNew

$64.99M

AQR CAPITAL MANAGEMENT LLC

#	Fund	Value↓	Shares	Portfolio %	Change
1	BlackRock, Inc.	$1.14B	18,161,519	0.02%	-14.8%
2	VANGUARD GROUP INC	$1.02B	15,293,121	0.01%	-4.6%
3	FMR LLC	$455.62M	7,266,652	0.02%	+11.4%
4	STATE STREET CORP	$407.31M	6,496,130	0.01%	+1.4%
5	BAKER BROS. ADVISORS LP	$124.95M	1,992,783	0.72%	-8.4%
6	Fisher Asset Management, LLC	$69.82M	1,113,568	0.02%	-15.1%
7	PRICE T ROWE ASSOCIATES INC /MD/	$65.44M	1,043,732	0.01%	+24.4%
8	RENAISSANCE TECHNOLOGIES LLC	$64.99M	1,036,495	0.10%	New
9	AQR CAPITAL MANAGEMENT LLC	$10.33M	167,210	0.00%	+13.5%
10	CITADEL ADVISORS LLC	$6.16M	98,194	0.00%	-79.3%

Frequently Asked Questions

Which institutional investors own the most ARWR stock?

As of the latest SEC 13F filings, BlackRock, Inc. is the largest institutional holder of ARWR with a position worth $1.14B, representing 0.02% of their portfolio. In total, 14 institutional investors hold ARWR with a combined value of $3.37B.

Are hedge funds buying or selling ARWR?

In the most recent quarter, 1 fund opened a new position in ARWR. Additionally, 7 increased their holdings and 6 reduced their positions.

What percentage of ARWR is owned by institutional investors?

Institutional investors hold $3.37B worth of ARWR stock across 14 positions. The largest institutional holder is BlackRock, Inc. with $1.14B in holdings.

What is a 13F filing and why does it matter for ARWR?

A 13F filing is a quarterly report required by the SEC from institutional investment managers with over $100 million in assets. It discloses their holdings in U.S. equities. For ARWR, these filings reveal which major funds are accumulating or reducing positions, providing insights into institutional sentiment.

Track ARWR institutional moves

Get notified when hedge funds change their ARWR positions.