Qube Research & Technologies (QRT)
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Qube Research & Technologies (QRT)’s Amphastar Pharmaceuticals AMPH Stock Holding History

Qube Research & Technologies (QRT)’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 		– Sell
-111,439
Closed -$2.98M – 3512
2025
Q4 		$2.98M Sell
111,439
-129,773
-54% -$3.34M ﹤0.01% 2054
2025
Q3 		$6.43M Sell
241,212
-228,280
-49% -$5.89M 0.01% 1603
2025
Q2 		$10.8M Buy
469,492
+210,511
+81% +$5.22M 0.02% 1242
2025
Q1 		$7.51M Buy
258,981
+143,689
+125% +$4.59M 0.01% 1306
2024
Q4 		$4.28M Sell
115,292
-1,386
-1% -$63.4K 0.01% 1567
2024
Q3 		$5.66M Sell
116,678
-89,541
-43% -$3.93M 0.01% 1325
2024
Q2 		$8.25M Buy
206,219
+80,384
+64% +$3.33M 0.02% 1013
2024
Q1 		$5.53M Buy
125,835
+70,431
+127% +$3.64M 0.01% 1178
2023
Q4 		$3.43M Sell
55,404
-46,920
-46% -$2.46M 0.01% 1245
2023
Q3 		$4.71M Buy
102,324
+96,167
+1,562% +$5.25M 0.01% 959
2023
Q2 		$354K Buy
+6,157
New +$273K ﹤0.01% 1617
2023
Q1 		– Sell
-61,271
Closed -$1.72M – 2510
2022
Q4 		$1.72M Sell
61,271
-20,521
-25% -$596K 0.01% 1004
2022
Q3 		$2.3M Buy
81,792
+22,559
+38% +$737K 0.01% 872
2022
Q2 		$2.06M Buy
59,233
+10,409
+21% +$371K 0.02% 793
2022
Q1 		$1.75M Buy
+48,824
New +$1.38M 0.02% 865

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