Vanguard Personalized Indexing Management, LLC

Position in ARWR — Arrowhead Pharmaceuticals, Inc.

CIK 1767306 OAKLAND, CA

Position in ARWR

as of Jun 30, 2026 · filed Aug 11, 2026 Compact

Position Value

$1,168,527

+$401,706 QoQ

Shares Held

14,336

+17.2% QoQ

Ownership

0.010%

of shares outstanding

% of Portfolio

0.01%

of 13F equity value

Holder Rank

#230

of 497 holders

Holding Since

Dec 2021

12 quarters on record

Voting authority Sole 65% Shared 0% None 35%

Healthcare · as of Jun 30, 2026

Vanguard Personalized Indexing Management, LLC holds $97,369,192 across 138 Biotechnology names. ARWR ranks #19 (1.2% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	VRTX	Vertex Pharmaceuticals Inc / Ma	43,151	$21,434,396
2	REGN	Regeneron Pharmaceuticals, Inc.	11,712	$7,302,900
3	INCY	Incyte Corp	34,556	$3,917,268
4	ARGX	Argenx SE	4,103	$3,806,640
5	ALNY	Alnylam Pharmaceuticals, Inc.	11,436	$3,442,579
6	RVMD	Revolution Medicines, Inc.	17,697	$3,314,294
7	MRNA	Moderna, Inc.	43,679	$3,058,840
8	HALO	Halozyme Therapeutics, Inc.	30,414	$2,380,503

12 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$1,168,527	14,336	+17.2%	Shares	Sole	2026-08-11
2026-03-31	$766,821	12,230	+33.6%	Shares	Sole	2026-05-14
2025-12-31	$607,734	9,154	+10.0%	Shares	Sole	2026-02-13
2025-09-30	$287,129	8,325	-16.9%	Shares	Sole	2025-10-31
2024-09-30	$193,951	10,013	-21.5%	Shares	Sole	2024-11-12
2024-06-30	$331,398	12,751	+23.2%	Shares	Sole	2024-08-12
2024-03-31	$295,895	10,346	+2.6%	Shares	Sole	2024-05-09
2023-12-31	$308,601	10,085	+29.4%	Shares	Sole	2024-02-08
2023-06-30	$278,005	7,796	+54.7%	Shares	Sole	2023-07-28
2022-12-31	$204,381	5,039	-57.0%	Shares	Sole	2023-02-10
2022-03-31	$539,094	11,722	+5.3%	Shares	Sole	2022-05-16
2021-12-31	$738,117	11,133	—	Shares	Sole	2022-02-23
No filing history on record for this holder in this stock.