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Steven Cohen’s Amphastar Pharmaceuticals AMPH Stock Holding History

Steven Cohen’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 		$1.11M Buy
+54,964
New +$1.11M ﹤0.01% 2771
2025
Q1 		– Sell
-9,200
Closed -$342K – 2010
2024
Q4 		$342K Sell
9,200
-29,617
-76% -$1.35M ﹤0.01% 1759
2024
Q3 		$1.88M Sell
38,817
-197,019
-84% -$8.65M ﹤0.01% 1215
2024
Q2 		$9.43M Sell
235,836
-26,564
-10% -$1.1M 0.02% 638
2024
Q1 		$11.5M Buy
+262,400
New +$13.6M 0.03% 665
2023
Q4 		– Sell
-1,283
Closed -$59K – 2128
2023
Q3 		$59K Buy
+1,283
New +$70K ﹤0.01% 2089
2023
Q2 		– Sell
-65,418
Closed -$2.45M – 2140
2023
Q1 		$2.45M Buy
+65,418
New +$2.14M 0.01% 939
2019
Q3 		– Sell
-162,286
Closed -$3.43M – 1118
2019
Q2 		$3.43M Buy
+162,286
New +$3.39M 0.02% 582
2018
Q2 		– Sell
-65,000
Closed -$1.22M – 960
2018
Q1 		$1.22M Sell
65,000
-29,820
-31% -$561K 0.01% 800
2017
Q4 		$1.82M Buy
+94,820
New +$1.77M 0.01% 752
2017
Q3 		– Sell
-175,000
Closed -$3.13M – 863
2017
Q2 		$3.13M Buy
+175,000
New +$2.78M 0.02% 573

Other funds holding AMPH

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
Marshall Wace
Marshall Wace London, United Kingdom $127B AUM 46.06% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Fuller & Thaler Asset Management
Fuller & Thaler Asset Management San Mateo, California $36.7B AUM 74.15% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Steven Cohen's AMPH Position: Q2 2026 in Review

Steven Cohen opened a new position in Amphastar Pharmaceuticals (AMPH) in Q2 2026: 54,964 shares worth $1.11M. The stake represents ﹤0.01% of the portfolio and ranks #2771 among its holdings. This is a return to the name: Steven Cohen previously reported a position in AMPH as recently as Q4 2024.

Steven Cohen first reported a position in AMPH in Q2 2017 and has held it in 11 quarters since. The position peaked at $11.5M in Q1 2024. 209 funds tracked by Wall St. Rank hold AMPH as of Q2 2026.

  • Steven Cohen held 54,964 shares of Amphastar Pharmaceuticals worth $1.11M as of Q2 2026.
  • Amphastar Pharmaceuticals was a new Steven Cohen position in Q2 2026.
  • Amphastar Pharmaceuticals made up ﹤0.01% of Steven Cohen's portfolio in Q2 2026, its #2771 holding.
  • Steven Cohen first reported a position in Amphastar Pharmaceuticals in Q2 2017 and has held it in 11 quarters since.
  • Steven Cohen's Amphastar Pharmaceuticals position peaked at $11.5M in Q1 2024.
  • 209 funds tracked by Wall St. Rank held Amphastar Pharmaceuticals as of Q2 2026.

Based on Point72 Asset Management's 13F filing for Q2 2026, filed 14 Aug 2026.