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Significant Wealth Partners’s Amphastar Pharmaceuticals AMPH Stock Holding History

Significant Wealth Partners’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 		$210K Buy
+10,424
New +$210K 0.23% 99
2026
Q1 		– Sell
-9,624
Closed -$258K – 113
2025
Q4 		$258K Sell
9,624
-10,955
-53% -$282K 0.29% 46
2025
Q3 		$548K Buy
20,579
+4,401
+27% +$114K 0.27% 36
2025
Q2 		$371K Buy
16,178
+5,963
+58% +$148K 0.18% 50
2025
Q1 		$296K Buy
10,215
+3,080
+43% +$98.4K 0.15% 59
2024
Q4 		$265K Buy
+7,135
New +$326K 0.14% 59

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 $3.38T AUM 44.17% 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
Fuller & Thaler Asset Management
Fuller & Thaler Asset Management San Mateo, California $36.7B AUM 74.15% 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

Significant Wealth Partners's AMPH Position: Q2 2026 in Review

Significant Wealth Partners opened a new position in Amphastar Pharmaceuticals (AMPH) in Q2 2026: 10,424 shares worth $210K. The stake represents 0.23% of the portfolio and ranks #99 among its holdings. This is a return to the name: Significant Wealth Partners previously reported a position in AMPH as recently as Q4 2025.

Significant Wealth Partners first reported a position in AMPH in Q4 2024 and has held it in 6 quarters since. The position peaked at $548K in Q3 2025. 211 funds tracked by Wall St. Rank hold AMPH as of Q2 2026.

  • Significant Wealth Partners held 10,424 shares of Amphastar Pharmaceuticals worth $210K as of Q2 2026.
  • Amphastar Pharmaceuticals was a new Significant Wealth Partners position in Q2 2026.
  • Amphastar Pharmaceuticals made up 0.23% of Significant Wealth Partners's portfolio in Q2 2026, its #99 holding.
  • Significant Wealth Partners first reported a position in Amphastar Pharmaceuticals in Q4 2024 and has held it in 6 quarters since.
  • Significant Wealth Partners's Amphastar Pharmaceuticals position peaked at $548K in Q3 2025.
  • 211 funds tracked by Wall St. Rank held Amphastar Pharmaceuticals as of Q2 2026.

Based on Significant Wealth Partners's 13F filing for Q2 2026, filed 14 Jul 2026.