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Trust Company’s Amphastar Pharmaceuticals AMPH Stock Holding History

Trust Company’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 		$303 Hold
15
– – ﹤0.01% 847
2026
Q1 		$294 Hold
15
– – ﹤0.01% 826
2025
Q4 		$402 Buy
+15
New +$386 ﹤0.01% 758

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

Trust Company's AMPH Position: Q2 2026 in Review

Trust Company held its Amphastar Pharmaceuticals (AMPH) position steady in Q2 2026 at 15 shares worth $303. The position accounts for ﹤0.01% of the portfolio, ranked #847.

Trust Company first reported a position in AMPH in Q4 2025 and has held it in 3 quarters since. The position peaked at $402 in Q4 2025. 210 funds tracked by Wall St. Rank hold AMPH as of Q2 2026.

  • Trust Company held 15 shares of Amphastar Pharmaceuticals worth $303 as of Q2 2026.
  • Trust Company left its Amphastar Pharmaceuticals share count unchanged in Q2 2026.
  • Amphastar Pharmaceuticals made up ﹤0.01% of Trust Company's portfolio in Q2 2026, its #847 holding.
  • Trust Company first reported a position in Amphastar Pharmaceuticals in Q4 2025 and has held it in 3 quarters since.
  • Trust Company's Amphastar Pharmaceuticals position peaked at $402 in Q4 2025.
  • 210 funds tracked by Wall St. Rank held Amphastar Pharmaceuticals as of Q2 2026.

Based on Trust Company's 13F filing for Q2 2026, filed 10 Jul 2026.