CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM

Pension

Position in RYTM — Rhythm Pharmaceuticals, Inc.

CIK 1081019 WEST SACRAMENTO, CA

Position in RYTM

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

Position Value

$5,723,147

-$7,453 QoQ

Shares Held

65,806

+22.9% QoQ

Ownership

0.096%

of shares outstanding

% of Portfolio

0.01%

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 $884,195,299 across 222 Biotechnology names. RYTM ranks #27 (0.6% 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

25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$5,723,147	65,806	+22.9%	Shares	Sole	2026-05-18
2025-12-31	$5,730,600	53,537	+9.4%	Shares	Sole	2026-02-17
2025-09-30	$4,941,844	48,934	+14.0%	Shares	Sole	2025-11-14
2025-06-30	$2,711,925	42,917	+0.5%	Shares	Sole	2025-08-14
2025-03-31	$2,262,931	42,721	-1.9%	Shares	Sole	2025-05-15
2024-12-31	$2,436,977	43,533	-0.9%	Shares	Sole	2025-03-18
2024-09-30	$2,300,759	43,916	-1.9%	Shares	Sole	2025-04-04
2024-06-30	$1,837,722	44,757	-6.5%	Shares	Sole	2025-04-08
2024-03-31	$2,075,247	47,894	-2.3%	Shares	Sole	2024-05-16
2023-12-31	$2,252,392	48,997	-4.9%	Shares	Sole	2024-02-13
2023-09-30	$1,181,416	51,534	-9.6%	Shares	Sole	2023-11-14
2023-06-30	$940,408	57,029	+8.8%	Shares	Sole	2023-08-21
2023-03-31	$935,208	52,422	+48.5%	Shares	Sole	2023-05-09
2022-12-31	$1,028,110	35,306	+8.6%	Shares	Sole	2023-02-14
2022-09-30	$796,740	32,520	+1.8%	Shares	Sole	2022-11-21
2022-06-30	$132,575	31,946	-34.3%	Shares	Sole	2022-08-15
2022-03-31	$560,459	48,651	-9.0%	Shares	Sole	2022-05-16
2021-12-31	$533,820	53,489	+1.9%	Shares	Sole	2022-02-15
2021-09-30	$685,545	52,492	-13.6%	Shares	Sole	2021-11-15
2021-06-30	$1,189,269	60,739	+5.7%	Shares	Sole	2021-08-16
2021-03-31	$1,222,705	57,485	+13.4%	Shares	Sole	2021-05-18
2020-12-31	$1,506,865	50,685	0.0%	Shares	Sole	2021-02-16
2020-09-30	$1,098,343	50,685	0.0%	Shares	Sole	2020-11-17
2020-06-30	$1,130,275	50,685	+11.9%	Shares	Sole	2020-08-17
2020-03-31	$689,283	45,288	—	Shares	Sole	2020-05-13
No filing history on record for this holder in this stock.