Centiva Capital’s Amphastar Pharmaceuticals AMPH Stock Holding History

Centiva Capital’s Portfolio AMPH Stock Details AMPH Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q3	–	Sell	-24,161	Closed	-$555K	–	1075
2025 Q2	$555K	Buy	+24,161	New	+$600K	0.01%	910
2025 Q1	–	Sell	-9,803	Closed	-$364K	–	1523
2024 Q4	$364K	Buy	9,803 +3,338	+52%	+$153K	0.01%	1022
2024 Q3	$314K	Sell	6,465 -17,110	-73%	-$751K	0.01%	1544
2024 Q2	$943K	Buy	+23,575	New	+$977K	0.02%	812
2023 Q3	–	Sell	-11,189	Closed	-$643K	–	1698
2023 Q2	$643K	Buy	11,189 +5,845	+109%	+$259K	0.01%	713
2023 Q1	$200K	Buy	+5,344	New	+$175K	﹤0.01%	1240

Other funds holding AMPH

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

TD Asset Management Toronto, Ontario, Canada $115B AUM 41.58% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Fuller & Thaler Asset Management San Mateo, California $36.7B AUM 74.15% 1-Year Est. Return

BTW

Boston Trust Walden Boston, Massachusetts $13.1B AUM 24.63% 1-Year Est. Return

EIP

Epoch Investment Partners New York $17.6B AUM 34.17% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Marshall Wace London, United Kingdom $127B AUM 46.06% 1-Year Est. Return

Centiva Capital's AMPH Position: Q3 2025 in Review

Centiva Capital sold out of Amphastar Pharmaceuticals (AMPH) in Q3 2025, closing a stake of 24,161 shares — an estimated $555K sold.

Centiva Capital first reported a position in AMPH in Q1 2023 and held it in 6 quarters. The position peaked at $943K in Q2 2024. 243 funds tracked by Wall St. Rank hold AMPH as of Q3 2025.

Centiva Capital reported no remaining Amphastar Pharmaceuticals position as of Q3 2025 after selling out during the quarter.
Centiva Capital sold 24,161 Amphastar Pharmaceuticals shares in Q3 2025, an estimated $555K.
Centiva Capital first reported a position in Amphastar Pharmaceuticals in Q1 2023 and held it in 6 quarters.
Centiva Capital's Amphastar Pharmaceuticals position peaked at $943K in Q2 2024.
243 funds tracked by Wall St. Rank held Amphastar Pharmaceuticals as of Q3 2025.

Based on Centiva Capital's 13F filing for Q3 2025, filed 14 Nov 2025.