Fuller & Thaler Asset Management
AMPH icon

Fuller & Thaler Asset Management’s Amphastar Pharmaceuticals AMPH Stock Holding History

Fuller & Thaler Asset 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
Q2 		$19.2M Sell
949,238
-445,901
-32% -$8.99M 0.05% 300
2026
Q1 		$27.3M Buy
1,395,139
+676
+0% +$16.5K 0.09% 259
2025
Q4 		$37.3M Buy
1,394,463
+40,536
+3% +$1.04M 0.13% 223
2025
Q3 		$36.1M Buy
1,353,927
+90,155
+7% +$2.33M 0.12% 227
2025
Q2 		$29M Buy
1,263,772
+174
+0% +$4.32K 0.11% 231
2025
Q1 		$36.6M Buy
1,263,598
+130,672
+12% +$4.17M 0.14% 209
2024
Q4 		$42.1M Sell
1,132,926
-127,841
-10% -$5.85M 0.16% 201
2024
Q3 		$61.2M Sell
1,260,767
-12,051
-0.9% -$529K 0.24% 143
2024
Q2 		$50.9M Sell
1,272,818
-1,360
-0.1% -$56.4K 0.22% 144
2024
Q1 		$55.9M Buy
1,274,178
+1,161
+0.1% +$60K 0.24% 133
2023
Q4 		$78.7M Sell
1,273,017
-2,197
-0.2% -$115K 0.4% 96
2023
Q3 		$58.6M Sell
1,275,214
-4,281
-0.3% -$234K 0.34% 102
2023
Q2 		$73.5M Buy
1,279,495
+467,801
+58% +$20.7M 0.42% 87
2023
Q1 		$30.4M Buy
811,694
+311,629
+62% +$10.2M 0.18% 153
2022
Q4 		$14M Sell
500,065
-215,116
-30% -$6.25M 0.09% 185
2022
Q3 		$20.1M Sell
715,181
-11,335
-2% -$370K 0.14% 158
2022
Q2 		$25.3M Buy
726,516
+111,661
+18% +$3.98M 0.17% 158
2022
Q1 		$22.1M Buy
614,855
+3,393
+0.6% +$96.2K 0.13% 173
2021
Q4 		$14.2M Buy
611,462
+210,362
+52% +$4.3M 0.08% 201
2021
Q3 		$7.63M Buy
401,100
+1,655
+0.4% +$32.4K 0.05% 242
2021
Q2 		$8.05M Buy
399,445
+1,495
+0.4% +$28.2K 0.05% 240
2021
Q1 		$7.29M Sell
397,950
-148,394
-27% -$2.76M 0.05% 238
2020
Q4 		$11M Sell
546,344
-271,171
-33% -$5.28M 0.1% 190
2020
Q3 		$15.3M Buy
817,515
+2,386
+0.3% +$48K 0.19% 132
2020
Q2 		$18.3M Buy
+815,129
New +$14.9M 0.24% 115

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
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
LSV Asset Management
LSV Asset Management Chicago, Illinois $55.1B AUM 45.38% 1-Year Est. Return

Fuller & Thaler Asset Management's AMPH Position: Q2 2026 in Review

Fuller & Thaler Asset Management reduced its Amphastar Pharmaceuticals (AMPH) stake by 32% in Q2 2026, selling an estimated $8.99M and leaving 949,238 shares worth $19.2M. The position accounts for 0.05% of the portfolio, ranked #300.

Fuller & Thaler Asset Management first reported a position in AMPH in Q2 2020 and has held it in 25 quarters since. The position peaked at $78.7M in Q4 2023. 210 funds tracked by Wall St. Rank hold AMPH as of Q2 2026.

  • Fuller & Thaler Asset Management held 949,238 shares of Amphastar Pharmaceuticals worth $19.2M as of Q2 2026.
  • Fuller & Thaler Asset Management sold 445,901 Amphastar Pharmaceuticals shares in Q2 2026, an estimated $8.99M.
  • Amphastar Pharmaceuticals made up 0.05% of Fuller & Thaler Asset Management's portfolio in Q2 2026, its #300 holding.
  • Fuller & Thaler Asset Management first reported a position in Amphastar Pharmaceuticals in Q2 2020 and has held it in 25 quarters since.
  • Fuller & Thaler Asset Management's Amphastar Pharmaceuticals position peaked at $78.7M in Q4 2023.
  • 210 funds tracked by Wall St. Rank held Amphastar Pharmaceuticals as of Q2 2026.

Based on Fuller & Thaler Asset Management's 13F filing for Q2 2026, filed 12 Aug 2026.