CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM

Pension

Position in REGN — Regeneron Pharmaceuticals, Inc.

CIK 1081019 WEST SACRAMENTO, CA

Position in REGN

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

Position Value

$119,141,860

-$3,338,471 QoQ

Shares Held

154,201

-2.8% QoQ

Ownership

0.147%

of shares outstanding

% of Portfolio

0.13%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Healthcare · as of Mar 31, 2026

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM holds $883,936,485 across 222 Biotechnology names. REGN ranks #2 (13.5% 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. This page	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

25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$119,141,860	154,201	-2.8%	Shares	Sole	2026-05-18
2025-12-31	$122,480,331	158,680	-2.6%	Shares	Sole	2026-02-17
2025-09-30	$91,557,235	162,835	-0.8%	Shares	Sole	2025-11-14
2025-06-30	$86,164,575	164,123	-1.2%	Shares	Sole	2025-08-14
2025-03-31	$105,343,066	166,096	-1.1%	Shares	Sole	2025-05-15
2024-12-31	$119,592,371	167,889	-3.0%	Shares	Sole	2025-03-18
2024-09-30	$182,016,949	173,145	-0.3%	Shares	Sole	2025-04-04
2024-06-30	$182,592,288	173,727	+0.4%	Shares	Sole	2025-04-08
2024-03-31	$166,557,932	173,049	+1.0%	Shares	Sole	2024-05-16
2023-12-31	$150,539,784	171,401	+0.4%	Shares	Sole	2024-02-13
2023-09-30	$140,512,190	170,740	-3.3%	Shares	Sole	2023-11-14
2023-06-30	$126,865,422	176,560	-1.8%	Shares	Sole	2023-08-21
2023-03-31	$147,669,710	179,719	-1.0%	Shares	Sole	2023-05-09
2022-12-31	$130,985,788	181,549	+0.9%	Shares	Sole	2023-02-14
2022-09-30	$123,907,046	179,870	-0.1%	Shares	Sole	2022-11-21
2022-06-30	$106,474,335	180,120	+1.6%	Shares	Sole	2022-08-15
2022-03-31	$123,799,833	177,257	-4.6%	Shares	Sole	2022-05-16
2021-12-31	$117,328,206	185,787	+4.8%	Shares	Sole	2022-02-15
2021-09-30	$107,262,708	177,241	+0.6%	Shares	Sole	2021-11-15
2021-06-30	$98,451,611	176,266	-5.3%	Shares	Sole	2021-08-16
2021-03-31	$88,052,773	186,103	+0.6%	Shares	Sole	2021-05-18
2020-12-31	$89,381,147	185,012	+2.5%	Shares	Sole	2021-02-16
2020-09-30	$101,085,632	180,581	+3.1%	Shares	Sole	2020-11-17
2020-06-30	$109,244,770	175,170	+20.2%	Shares	Sole	2020-08-17
2020-03-31	$71,152,642	145,718	—	Shares	Sole	2020-05-13
No filing history on record for this holder in this stock.