ROYCE & ASSOCIATES LP

Position in AMPH — Amphastar Pharmaceuticals, Inc.

CIK 906304 New York, NY

Position in AMPH

as of Jun 30, 2026 · filed Aug 14, 2026 Compact

Position Value

$5,948,216

-$2,008,752 QoQ

Shares Held

294,758

-27.4% QoQ

Ownership

0.693%

of shares outstanding

% of Portfolio

0.05%

of 13F equity value

Holder Rank

#23

of 208 holders

Holding Since

Dec 2021

13 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Healthcare · as of Jun 30, 2026

ROYCE & ASSOCIATES LP holds $49,989,480 across 12 Drug Manufacturers - Specialty & Generic names. AMPH ranks #4 (11.9% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	COLL	Collegium Pharmaceutical, Inc	332,065	$12,020,753
2	TKNO	Alpha Teknova, Inc.	1,661,395	$9,436,723
3	HROW	Harrow, Inc.	154,587	$6,565,309
4	AMPH	Amphastar Pharmaceuticals, Inc. This page	294,758	$5,948,216
5	XERS	Xeris Biopharma Holdings, Inc.	461,153	$3,652,331
6	ALKS	Alkermes plc.	58,072	$3,042,972
7	ALVO	Alvotech	558,144	$2,059,551
8	SIGA	Siga Technologies Inc	551,010	$2,005,676

13 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$5,948,216	294,758	-27.4%	Shares	Sole	2026-08-14
2026-03-31	$7,956,968	406,175	+15.3%	Shares	Sole	2026-05-12
2025-12-31	$9,434,513	352,297	-3.8%	Shares	Sole	2026-02-09
2025-09-30	$9,762,481	366,322	+29.4%	Shares	Sole	2025-11-12
2025-06-30	$6,501,973	283,187	+14.3%	Shares	Sole	2025-08-11
2025-03-31	$7,185,403	247,858	+2684.3%	Shares	Sole	2025-05-06
2024-12-31	$330,531	8,902	-1.9%	Shares	Sole	2025-02-10
2024-09-30	$440,458	9,076	0.0%	Shares	Sole	2024-11-06
2024-06-30	$363,040	9,076	-59.3%	Shares	Sole	2024-08-13
2023-03-31	$836,812	22,315	+64.7%	Shares	Sole	2023-05-23
2022-06-30	$471,265	13,546	-35.2%	Shares	Sole	2022-08-04
2022-03-31	$750,310	20,900	+4.5%	Shares	Sole	2022-05-05
2021-12-31	$465,939	20,006	—	Shares	Sole	2022-02-07
No filing history on record for this holder in this stock.