CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM

Pension

Position in ADPT — Adaptive Biotechnologies Corp

CIK 1081019 WEST SACRAMENTO, CA

Position in ADPT

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

Position Value

$1,993,973

+$177,107 QoQ

Shares Held

143,658

+28.4% QoQ

Ownership

0.090%

of shares outstanding

% of Portfolio

0.00%

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 $916,588,968 across 29 Diagnostics & Research names. ADPT ranks #21 (0.2% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	TMO	Thermo Fisher Scientific Inc.	571,811	$281,062,260
2	DHR	Danaher Corp /De/	973,686	$184,610,865
3	IDXX	Idexx Laboratories Inc /De	122,654	$68,918,056
4	A	Agilent Technologies, Inc.	438,607	$49,992,425
5	WAT	Waters Corp /De/	154,059	$45,878,770
6	IQV	Iqvia Holdings Inc.	261,431	$44,584,442
7	NTRA	Natera, Inc.	197,815	$39,561,021
8	MTD	Mettler Toledo International Inc/	30,547	$38,525,876

25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$1,993,973	143,658	+28.4%	Shares	Sole	2026-05-18
2025-12-31	$1,816,866	111,876	+13.8%	Shares	Sole	2026-02-17
2025-09-30	$1,470,986	98,328	+0.0%	Shares	Sole	2025-11-14
2025-06-30	$1,145,439	98,321	+1.0%	Shares	Sole	2025-08-14
2025-03-31	$723,592	97,388	0.0%	Shares	Sole	2025-05-15
2024-12-31	$583,841	97,388	+1060.5%	Shares	Sole	2025-03-18
2024-09-30	$42,967	8,392	0.0%	Shares	Sole	2025-04-04
2024-06-30	$30,379	8,392	-91.8%	Shares	Sole	2025-04-08
2024-03-31	$328,928	102,470	-5.9%	Shares	Sole	2024-05-16
2023-12-31	$533,423	108,862	-4.8%	Shares	Sole	2024-02-13
2023-09-30	$623,022	114,316	-9.3%	Shares	Sole	2023-11-14
2023-06-30	$845,392	125,990	-2.6%	Shares	Sole	2023-08-21
2023-03-31	$1,142,566	129,396	-1.5%	Shares	Sole	2023-05-09
2022-12-31	$1,003,689	131,373	+1.3%	Shares	Sole	2023-02-14
2022-09-30	$923,442	129,697	-1.6%	Shares	Sole	2022-11-21
2022-06-30	$1,066,488	131,828	+5.5%	Shares	Sole	2022-08-15
2022-03-31	$1,734,250	124,946	-8.7%	Shares	Sole	2022-05-16
2021-12-31	$3,839,337	136,826	-19.2%	Shares	Sole	2022-02-15
2021-09-30	$5,757,668	169,393	-10.4%	Shares	Sole	2021-11-15
2021-06-30	$7,720,497	188,950	+38.4%	Shares	Sole	2021-08-16
2021-03-31	$5,497,664	136,554	-0.6%	Shares	Sole	2021-05-18
2020-12-31	$8,123,515	137,384	+2.2%	Shares	Sole	2021-02-16
2020-09-30	$6,538,303	134,450	+9.8%	Shares	Sole	2020-11-17
2020-06-30	$5,924,227	122,452	+8.7%	Shares	Sole	2020-08-17
2020-03-31	$3,128,555	112,619	—	Shares	Sole	2020-05-13
No filing history on record for this holder in this stock.