Man Group’s Amphastar Pharmaceuticals AMPH Stock Holding History

Man Group’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 Q2	$350K	Sell	17,342 -19,932	-53%	-$402K	﹤0.01%	2135
2026 Q1	$730K	Buy	37,274 +23,123	+163%	+$566K	﹤0.01%	1936
2025 Q4	$379K	Sell	14,151 -18,234	-56%	-$470K	﹤0.01%	1960
2025 Q3	$863K	Buy	32,385 +12,085	+60%	+$312K	﹤0.01%	1716
2025 Q2	$466K	Sell	20,300 -17,937	-47%	-$445K	﹤0.01%	1853
2025 Q1	$1.11M	Buy	38,237 +16,412	+75%	+$524K	﹤0.01%	1561
2024 Q4	$810K	Buy	+21,825	New	+$998K	﹤0.01%	1542
2024 Q3	–	Sell	-8,776	Closed	-$351K	–	1956
2024 Q2	$351K	Buy	+8,776	New	+$364K	﹤0.01%	1757
2018 Q4	–	Sell	-18,451	Closed	-$355K	–	1900
2018 Q3	$355K	Buy	18,451 +6,556	+55%	+$117K	﹤0.01%	1907
2018 Q2	$182K	Buy	+11,895	New	+$208K	﹤0.01%	2027

Other funds holding AMPH

BlackRock New York $6.73T AUM 46.02% 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

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return

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

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

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

D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Man Group's AMPH Position: Q2 2026 in Review

Man Group reduced its Amphastar Pharmaceuticals (AMPH) stake by 53% in Q2 2026, selling an estimated $402K and leaving 17,342 shares worth $350K. The position accounts for ﹤0.01% of the portfolio, ranked #2135.

Man Group first reported a position in AMPH in Q2 2018 and has held it in 10 quarters since. The position peaked at $1.11M in Q1 2025. 210 funds tracked by Wall St. Rank hold AMPH as of Q2 2026.

Man Group held 17,342 shares of Amphastar Pharmaceuticals worth $350K as of Q2 2026.
Man Group sold 19,932 Amphastar Pharmaceuticals shares in Q2 2026, an estimated $402K.
Amphastar Pharmaceuticals made up ﹤0.01% of Man Group's portfolio in Q2 2026, its #2135 holding.
Man Group first reported a position in Amphastar Pharmaceuticals in Q2 2018 and has held it in 10 quarters since.
Man Group's Amphastar Pharmaceuticals position peaked at $1.11M in Q1 2025.
210 funds tracked by Wall St. Rank held Amphastar Pharmaceuticals as of Q2 2026.

Based on Man Group's 13F filing for Q2 2026, filed 14 Aug 2026.