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WealthCollab’s Amphastar Pharmaceuticals AMPH Stock Holding History

WealthCollab’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 		$2.34K Buy
116
+52
+81% +$1.05K ﹤0.01% 842
2026
Q1 		$1.25K Hold
64
– – ﹤0.01% 892
2025
Q4 		$1.71K Sell
64
-143
-69% -$3.68K ﹤0.01% 913
2025
Q3 		$5.52K Hold
207
– – ﹤0.01% 658
2025
Q2 		$4.75K Buy
+207
New +$5.14K ﹤0.01% 649

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 $3.37T AUM 44.26% 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

WealthCollab's AMPH Position: Q2 2026 in Review

WealthCollab increased its Amphastar Pharmaceuticals (AMPH) stake by 81% in Q2 2026, buying an estimated $1.05K and bringing the position to 116 shares worth $2.34K. The position accounts for ﹤0.01% of the portfolio, ranked #842.

WealthCollab first reported a position in AMPH in Q2 2025 and has held it in 5 quarters since. The position peaked at $5.52K in Q3 2025. 211 funds tracked by Wall St. Rank hold AMPH as of Q2 2026.

  • WealthCollab held 116 shares of Amphastar Pharmaceuticals worth $2.34K as of Q2 2026.
  • WealthCollab bought 52 Amphastar Pharmaceuticals shares in Q2 2026, an estimated $1.05K.
  • Amphastar Pharmaceuticals made up ﹤0.01% of WealthCollab's portfolio in Q2 2026, its #842 holding.
  • WealthCollab first reported a position in Amphastar Pharmaceuticals in Q2 2025 and has held it in 5 quarters since.
  • WealthCollab's Amphastar Pharmaceuticals position peaked at $5.52K in Q3 2025.
  • 211 funds tracked by Wall St. Rank held Amphastar Pharmaceuticals as of Q2 2026.

Based on WealthCollab's 13F filing for Q2 2026, filed 10 Aug 2026.