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Royce & Associates’s Amphastar Pharmaceuticals AMPH Stock Holding History

Royce & Associates’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 		$7.96M Buy
406,175
+53,878
+15% +$1.32M 0.08% 388
2025
Q4 		$9.43M Sell
352,297
-14,025
-4% -$361K 0.1% 327
2025
Q3 		$9.76M Buy
366,322
+83,135
+29% +$2.15M 0.1% 307
2025
Q2 		$6.5M Buy
283,187
+35,329
+14% +$877K 0.07% 409
2025
Q1 		$7.19M Buy
247,858
+238,956
+2,684% +$7.63M 0.08% 375
2024
Q4 		$331K Sell
8,902
-174
-2% -$7.96K ﹤0.01% 784
2024
Q3 		$440K Hold
9,076
– – ﹤0.01% 807
2024
Q2 		$363K Buy
+9,076
New +$376K ﹤0.01% 813
2023
Q2 		– Sell
-22,315
Closed -$837K – 915
2023
Q1 		$837K Buy
+22,315
New +$732K 0.01% 787
2022
Q3 		– Sell
-13,546
Closed -$471K – 933
2022
Q2 		$471K Sell
13,546
-7,354
-35% -$262K ﹤0.01% 840
2022
Q1 		$750K Buy
20,900
+894
+4% +$25.4K 0.01% 836
2021
Q4 		$466K Buy
+20,006
New +$409K ﹤0.01% 899

Other funds holding AMPH

BlackRock
BlackRock New York $5.7T AUM 30.48% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
State Street
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
TD Asset Management Toronto, Ontario, Canada $123B AUM 34.51% 1-Year Est. Return
Fuller & Thaler Asset Management
Fuller & Thaler Asset Management San Mateo, California $29.7B AUM 43.33% 1-Year Est. Return
Marshall Wace
Marshall Wace London, United Kingdom $93.4B AUM 35.1% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return
Geode Capital Management
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