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AMPH icon

SignatureFD’s Amphastar Pharmaceuticals AMPH Stock Holding History

SignatureFD’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 		$11.5K Buy
588
+46
+8% +$1.13K ﹤0.01% 2450
2025
Q4 		$14.5K Buy
542
+20
+4% +$515 ﹤0.01% 2255
2025
Q3 		$13.9K Sell
522
-750
-59% -$19.4K ﹤0.01% 2275
2025
Q2 		$29.2K Buy
1,272
+400
+46% +$9.93K ﹤0.01% 1880
2025
Q1 		$25.3K Buy
872
+520
+148% +$16.6K ﹤0.01% 1939
2024
Q4 		$13.1K Hold
352
– – ﹤0.01% 2266
2024
Q3 		$17.1K Hold
352
– – ﹤0.01% 2115
2024
Q2 		$14.1K Sell
352
-15
-4% -$622 ﹤0.01% 2128
2024
Q1 		$16.1K Sell
367
-8
-2% -$413 ﹤0.01% 2099
2023
Q4 		$23.2K Sell
375
-86
-19% -$4.52K ﹤0.01% 1857
2023
Q3 		$21.2K Sell
461
-2
-0.4% -$109 ﹤0.01% 1825
2023
Q2 		$26.6K Buy
463
+10
+2% +$443 ﹤0.01% 1744
2023
Q1 		$17K Sell
453
-26
-5% -$852 ﹤0.01% 1952
2022
Q4 		$13.4K Sell
479
-233
-33% -$6.77K ﹤0.01% 1999
2022
Q3 		$20K Sell
712
-50
-7% -$1.63K ﹤0.01% 1720
2022
Q2 		$27K Buy
762
+43
+6% +$1.53K ﹤0.01% 1617
2022
Q1 		$26K Buy
719
+262
+57% +$7.43K ﹤0.01% 1705
2021
Q4 		$11K Buy
457
+124
+37% +$2.54K ﹤0.01% 2062
2021
Q3 		$6K Buy
333
+99
+42% +$1.94K ﹤0.01% 2271
2021
Q2 		$5K Sell
234
-203
-46% -$3.83K ﹤0.01% 2254
2021
Q1 		$8K Sell
437
-17
-4% -$316 ﹤0.01% 1928
2020
Q4 		$9K Buy
454
+51
+13% +$992 ﹤0.01% 1725
2020
Q3 		$8K Buy
403
+208
+107% +$4.19K ﹤0.01% 1701
2020
Q2 		$4K Buy
195
+119
+157% +$2.18K ﹤0.01% 1862
2020
Q1 		$1K Buy
+76
New +$1.32K ﹤0.01% 2062

Other funds holding AMPH

BlackRock
BlackRock New York $5.72T 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 $100B 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

SignatureFD's AMPH Position: Q1 2026 in Review

SignatureFD increased its Amphastar Pharmaceuticals (AMPH) stake by 8.5% in Q1 2026, buying an estimated $1.13K and bringing the position to 588 shares worth $11.5K. The position accounts for ﹤0.01% of the portfolio, ranked #2450.

SignatureFD first reported a position in AMPH in Q1 2020 and has held it in 25 quarters since. The position peaked at $29.2K in Q2 2025. 215 funds tracked by Wall St. Rank hold AMPH as of Q1 2026.

  • SignatureFD held 588 shares of Amphastar Pharmaceuticals worth $11.5K as of Q1 2026.
  • SignatureFD bought 46 Amphastar Pharmaceuticals shares in Q1 2026, an estimated $1.13K.
  • Amphastar Pharmaceuticals made up ﹤0.01% of SignatureFD's portfolio in Q1 2026, its #2450 holding.
  • SignatureFD first reported a position in Amphastar Pharmaceuticals in Q1 2020 and has held it in 25 quarters since.
  • SignatureFD's Amphastar Pharmaceuticals position peaked at $29.2K in Q2 2025.
  • 215 funds tracked by Wall St. Rank held Amphastar Pharmaceuticals as of Q1 2026.

Based on SignatureFD's 13F filing for Q1 2026, filed 7 Apr 2026.