CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM

Pension

Position in ARWR — Arrowhead Pharmaceuticals, Inc.

CIK 1081019 WEST SACRAMENTO, CA

Position in ARWR

as of Mar 31, 2026 · filed May 18, 2026 Compact

Position Value

$9,048,425

+$1,189,708 QoQ

Shares Held

144,313

+21.9% QoQ

Ownership

0.102%

of shares outstanding

% of Portfolio

0.01%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

22 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Healthcare · as of Mar 31, 2026

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM holds $855,427,423 across 222 Biotechnology names. ARWR ranks #16 (1.1% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	VRTX	Vertex Pharmaceuticals Inc / Ma	373,481	$166,774,205
2	REGN	Regeneron Pharmaceuticals, Inc.	154,201	$119,141,860
3	ALNY	Alnylam Pharmaceuticals, Inc.	196,863	$65,136,060
4	INSM	INSMED Inc	303,182	$49,576,320
5	RPRX	Royalty Pharma plc	759,042	$36,411,244
6	INCY	Incyte Corp	241,287	$22,709,932
7	MRNA	Moderna, Inc.	407,190	$20,685,252
8	RVMD	Revolution Medicines, Inc.	165,277	$16,073,188

22 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$9,048,425	144,313	+21.9%	Shares	Sole	2026-05-18
2025-12-31	$7,858,717	118,372	+13.8%	Shares	Sole	2026-02-17
2025-09-30	$3,586,339	103,982	+0.0%	Shares	Sole	2025-11-14
2025-06-30	$1,642,820	103,976	+1.3%	Shares	Sole	2025-08-14
2025-03-31	$1,308,079	102,675	-16.2%	Shares	Sole	2025-05-15
2024-03-31	$3,503,099	122,486	+14.1%	Shares	Sole	2024-05-16
2023-12-31	$3,284,910	107,350	-4.3%	Shares	Sole	2024-02-13
2023-09-30	$3,013,013	112,133	-10.0%	Shares	Sole	2023-11-14
2023-06-30	$4,444,840	124,645	-1.7%	Shares	Sole	2023-08-21
2023-03-31	$3,219,856	126,766	-1.5%	Shares	Sole	2023-05-09
2022-12-31	$5,221,451	128,734	+1.3%	Shares	Sole	2023-02-14
2022-09-30	$4,199,960	127,079	-1.7%	Shares	Sole	2022-11-21
2022-06-30	$4,553,744	129,331	+0.5%	Shares	Sole	2022-08-15
2022-03-31	$5,918,591	128,693	-7.4%	Shares	Sole	2022-05-16
2021-12-31	$9,216,164	139,007	+2.4%	Shares	Sole	2022-02-15
2021-09-30	$8,476,433	135,775	-2.8%	Shares	Sole	2021-11-15
2021-06-30	$11,569,374	139,693	-9.5%	Shares	Sole	2021-08-16
2021-03-31	$10,238,927	154,410	+1.7%	Shares	Sole	2021-05-18
2020-12-31	$11,649,378	151,823	-0.1%	Shares	Sole	2021-02-16
2020-09-30	$6,541,718	151,921	+0.4%	Shares	Sole	2020-11-17
2020-06-30	$6,536,720	151,348	-0.5%	Shares	Sole	2020-08-17
2020-03-31	$4,377,643	152,160	—	Shares	Sole	2020-05-13
No filing history on record for this holder in this stock.