WG
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Winton Group’s Amphastar Pharmaceuticals AMPH Stock Holding History

Winton Group’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
2024
Q4 		– Sell
-23,915
Closed -$1.16M – 603
2024
Q3 		$1.16M Buy
23,915
+1,681
+8% +$73.8K 0.08% 213
2024
Q2 		$889K Buy
22,234
+1,653
+8% +$68.5K 0.06% 340
2024
Q1 		$904K Buy
20,581
+12,514
+155% +$646K 0.06% 322
2023
Q4 		$499K Sell
8,067
-168
-2% -$8.82K 0.04% 316
2023
Q3 		$379K Sell
8,235
-1,624
-16% -$88.6K 0.03% 430
2023
Q2 		$567K Sell
9,859
-15,928
-62% -$706K 0.05% 272
2023
Q1 		$967K Sell
25,787
-5,831
-18% -$191K 0.06% 459
2022
Q4 		$886K Buy
31,618
+5,265
+20% +$153K 0.06% 450
2022
Q3 		$741K Sell
26,353
-3,288
-11% -$107K 0.05% 516
2022
Q2 		$1.03M Buy
29,641
+12,920
+77% +$461K 0.05% 478
2022
Q1 		$600K Sell
16,721
-19,574
-54% -$555K 0.03% 629
2021
Q4 		$845K Sell
36,295
-22,031
-38% -$450K 0.05% 516
2021
Q3 		$1.11M Buy
58,326
+4,574
+9% +$89.6K 0.06% 450
2021
Q2 		$1.08M Buy
53,752
+3,986
+8% +$75.1K 0.06% 487
2021
Q1 		$912K Buy
49,766
+2,581
+5% +$48K 0.05% 524
2020
Q4 		$949K Sell
47,185
-50,070
-51% -$974K 0.07% 431
2020
Q3 		$1.82M Sell
97,255
-101,065
-51% -$2.03M 0.06% 570
2020
Q2 		$4.45M Buy
198,320
+115,918
+141% +$2.12M 0.11% 266
2020
Q1 		$1.22M Sell
82,402
-10,276
-11% -$179K 0.03% 720
2019
Q4 		$1.79M Buy
92,678
+76,954
+489% +$1.48M 0.03% 837
2019
Q3 		$312K Buy
+15,724
New +$328K ﹤0.01% 1265
2019
Q2 		– Sell
-11,781
Closed -$241K – 1121
2019
Q1 		$241K Buy
+11,781
New +$264K ﹤0.01% 893

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 $3.38T AUM 44.17% 1-Year Est. Return
Neuberger Berman Group
Neuberger Berman Group New York $150B AUM 40.08% 1-Year Est. Return
Pacer Advisors
Pacer Advisors Malvern, Pennsylvania $39.3B AUM 27.96% 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

Winton Group's AMPH Position: Q4 2024 in Review

Winton Group sold out of Amphastar Pharmaceuticals (AMPH) in Q4 2024, closing a stake of 23,915 shares — an estimated $1.16M sold.

Winton Group first reported a position in AMPH in Q1 2019 and held it in 22 quarters. The position peaked at $4.45M in Q2 2020. 263 funds tracked by Wall St. Rank hold AMPH as of Q4 2024.

  • Winton Group reported no remaining Amphastar Pharmaceuticals position as of Q4 2024 after selling out during the quarter.
  • Winton Group sold 23,915 Amphastar Pharmaceuticals shares in Q4 2024, an estimated $1.16M.
  • Winton Group first reported a position in Amphastar Pharmaceuticals in Q1 2019 and held it in 22 quarters.
  • Winton Group's Amphastar Pharmaceuticals position peaked at $4.45M in Q2 2020.
  • 263 funds tracked by Wall St. Rank held Amphastar Pharmaceuticals as of Q4 2024.

Based on Winton Group's 13F filing for Q4 2024, filed 12 Feb 2025.