Asset Management One
AMPH icon

Asset Management One’s Amphastar Pharmaceuticals AMPH Stock Holding History

Asset Management One’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
Q1 		– Sell
-1,297
Closed -$49K – 968
2024
Q4 		$49K Sell
1,297
-312
-19% -$14.3K ﹤0.01% 938
2024
Q3 		$78.1K Buy
+1,609
New +$70.6K ﹤0.01% 917
2023
Q2 		– Sell
-151
Closed -$5.66K – 999
2023
Q1 		$5.66K Sell
151
-235
-61% -$7.7K ﹤0.01% 999
2022
Q4 		$10.9K Buy
+386
New +$11.2K ﹤0.01% 993
2016
Q4 		– Sell
-36,126
Closed -$685K – 1008
2016
Q3 		$685K Buy
+36,126
New +$656K 0.01% 962

Other funds holding AMPH

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
TD Asset Management
TD Asset Management Toronto, Ontario, Canada $115B AUM 41.58% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Fuller & Thaler Asset Management
Fuller & Thaler Asset Management San Mateo, California $36.7B AUM 74.15% 1-Year Est. Return
EIP
Epoch Investment Partners New York $17.6B AUM 34.17% 1-Year Est. Return
BTW
Boston Trust Walden Boston, Massachusetts $13.1B AUM 24.63% 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

Asset Management One's AMPH Position: Q1 2025 in Review

Asset Management One sold out of Amphastar Pharmaceuticals (AMPH) in Q1 2025, closing a stake of 1,297 shares — an estimated $49K sold.

Asset Management One first reported a position in AMPH in Q3 2016 and held it in 5 quarters. The position peaked at $685K in Q3 2016. 241 funds tracked by Wall St. Rank hold AMPH as of Q1 2025.

  • Asset Management One reported no remaining Amphastar Pharmaceuticals position as of Q1 2025 after selling out during the quarter.
  • Asset Management One sold 1,297 Amphastar Pharmaceuticals shares in Q1 2025, an estimated $49K.
  • Asset Management One first reported a position in Amphastar Pharmaceuticals in Q3 2016 and held it in 5 quarters.
  • Asset Management One's Amphastar Pharmaceuticals position peaked at $685K in Q3 2016.
  • 241 funds tracked by Wall St. Rank held Amphastar Pharmaceuticals as of Q1 2025.

Based on Asset Management One's 13F filing for Q1 2025, filed 23 Apr 2025.