CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM

Pension

Position in AMPH — Amphastar Pharmaceuticals, Inc.

CIK 1081019 WEST SACRAMENTO, CA

Back to AMPH Full portfolio

Position in AMPH

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

Position Value

$554,377

-$404,293 QoQ

Shares Held

28,299

-20.9% QoQ

Ownership

0.064%

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")%

Common Shares in AMPH Over Time

Shares Held

Position Value (USD)

Position in Drug Manufacturers - Specialty & Generic

Healthcare · as of Mar 31, 2026

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM holds $251,575,501 across 39 Drug Manufacturers - Specialty & Generic names. AMPH ranks #25 (0.2% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	ZTS	Zoetis Inc.	704,179	$83,240,999
2	TEVA	Teva Pharmaceutical Industries Ltd	1,244,744	$37,491,689
3	UTHR	UNITED THERAPEUTICS Corp	59,844	$35,486,295
4	VTRS	Viatris Inc	1,348,165	$18,213,709
5	NBIX	Neurocrine Biosciences Inc	132,643	$17,474,388
6	ELAN	Elanco Animal Health Inc	576,936	$13,806,078
7	ALKS	Alkermes plc.	183,795	$6,498,991
8	LNTH	Lantheus Holdings, Inc.	78,207	$5,932,000

All Filings in AMPH

Export CSV

25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$554,377	28,299	-20.9%	Shares	Sole	2026-05-18
2025-12-31	$958,670	35,798	-0.2%	Shares	Sole	2026-02-17
2025-09-30	$956,175	35,879	+0.0%	Shares	Sole	2025-11-14
2025-06-30	$823,735	35,877	-1.4%	Shares	Sole	2025-08-14
2025-03-31	$1,054,337	36,369	0.0%	Shares	Sole	2025-05-15
2024-12-31	$1,350,380	36,369	-1.6%	Shares	Sole	2025-03-18
2024-09-30	$1,793,862	36,964	-3.0%	Shares	Sole	2025-04-04
2024-06-30	$1,524,680	38,117	-0.4%	Shares	Sole	2025-04-08
2024-03-31	$1,680,391	38,269	-7.0%	Shares	Sole	2024-05-16
2023-12-31	$2,545,436	41,155	-3.2%	Shares	Sole	2024-02-13
2023-09-30	$1,955,632	42,523	-8.7%	Shares	Sole	2023-11-14
2023-06-30	$2,676,033	46,564	-3.4%	Shares	Sole	2023-08-21
2023-03-31	$1,808,100	48,216	-2.4%	Shares	Sole	2023-05-09
2022-12-31	$1,384,440	49,409	+0.8%	Shares	Sole	2023-02-14
2022-09-30	$1,377,574	49,024	-1.5%	Shares	Sole	2022-11-21
2022-06-30	$1,730,837	49,751	+2.9%	Shares	Sole	2022-08-15
2022-03-31	$1,736,411	48,368	-7.7%	Shares	Sole	2022-05-16
2021-12-31	$1,220,954	52,424	+3.1%	Shares	Sole	2022-02-15
2021-09-30	$966,962	50,866	-0.5%	Shares	Sole	2021-11-15
2021-06-30	$1,030,196	51,101	-7.0%	Shares	Sole	2021-08-16
2021-03-31	$1,006,592	54,945	-0.4%	Shares	Sole	2021-05-18
2020-12-31	$1,108,925	55,143	0.0%	Shares	Sole	2021-02-16
2020-09-30	$1,033,931	55,143	+1.8%	Shares	Sole	2020-11-17
2020-06-30	$1,217,174	54,193	0.0%	Shares	Sole	2020-08-17
2020-03-31	$804,224	54,193	—	Shares	Sole	2020-05-13
No filing history on record for this holder in this stock.