Verition Fund Management’s Amphastar Pharmaceuticals AMPH Stock Holding History

Verition Fund Management’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
2026 Q1	$364K	Buy	+18,597	New	+$455K	﹤0.01%	1703
2025 Q1	–	Sell	-6,338	Closed	-$235K	–	3306
2024 Q4	$235K	Buy	6,338 +1,176	+23%	+$53.8K	﹤0.01%	2902
2024 Q3	$251K	Sell	5,162 -1,349	-21%	-$59.2K	﹤0.01%	2747
2024 Q2	$260K	Buy	+6,511	New	+$270K	﹤0.01%	2435
2023 Q4	–	Sell	-8,597	Closed	-$395K	–	2311
2023 Q3	$395K	Buy	8,597 +3,052	+55%	+$166K	﹤0.01%	1573
2023 Q2	$319K	Buy	+5,545	New	+$246K	﹤0.01%	1520
2017 Q1	–	Sell	-12,299	Closed	-$227K	–	1152
2016 Q4	$227K	Buy	+12,299	New	+$239K	0.02%	980

Other funds holding AMPH

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

TD Asset Management Toronto, Ontario, Canada $123B AUM 34.51% 1-Year Est. Return

Fuller & Thaler Asset Management San Mateo, California $29.7B AUM 43.33% 1-Year Est. Return

Marshall Wace London, United Kingdom $100B AUM 35.1% 1-Year Est. Return

American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

BTW

Boston Trust Walden Boston, Massachusetts $12.2B AUM 12.45% 1-Year Est. Return

Verition Fund Management's AMPH Position: Q1 2026 in Review

Verition Fund Management opened a new position in Amphastar Pharmaceuticals (AMPH) in Q1 2026: 18,597 shares worth $364K. The stake represents ﹤0.01% of the portfolio and ranks #1703 among its holdings. This is a return to the name: Verition Fund Management previously reported a position in AMPH as recently as Q4 2024.

Verition Fund Management first reported a position in AMPH in Q4 2016 and has held it in 7 quarters since. The position peaked at $395K in Q3 2023. 215 funds tracked by Wall St. Rank hold AMPH as of Q1 2026.

Verition Fund Management held 18,597 shares of Amphastar Pharmaceuticals worth $364K as of Q1 2026.
Amphastar Pharmaceuticals was a new Verition Fund Management position in Q1 2026.
Amphastar Pharmaceuticals made up ﹤0.01% of Verition Fund Management's portfolio in Q1 2026, its #1703 holding.
Verition Fund Management first reported a position in Amphastar Pharmaceuticals in Q4 2016 and has held it in 7 quarters since.
Verition Fund Management's Amphastar Pharmaceuticals position peaked at $395K in Q3 2023.
215 funds tracked by Wall St. Rank held Amphastar Pharmaceuticals as of Q1 2026.

Based on Verition Fund Management's 13F filing for Q1 2026, filed 15 May 2026.