JT
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Jupiter Topco’s Amphastar Pharmaceuticals AMPH Stock Holding History

Jupiter Topco’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 		$340K Buy
+16,868
New +$340K ﹤0.01% 2258

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

Jupiter Topco's AMPH Position: Q2 2026 in Review

Jupiter Topco opened a new position in Amphastar Pharmaceuticals (AMPH) in Q2 2026: 16,868 shares worth $340K. The stake represents ﹤0.01% of the portfolio and ranks #2258 among its holdings.

201 funds tracked by Wall St. Rank hold AMPH as of Q2 2026.

  • Jupiter Topco held 16,868 shares of Amphastar Pharmaceuticals worth $340K as of Q2 2026.
  • Amphastar Pharmaceuticals was a new Jupiter Topco position in Q2 2026.
  • Amphastar Pharmaceuticals made up ﹤0.01% of Jupiter Topco's portfolio in Q2 2026, its #2258 holding.
  • 201 funds tracked by Wall St. Rank held Amphastar Pharmaceuticals as of Q2 2026.

Based on Jupiter Topco's 13F filing for Q2 2026, filed 14 Aug 2026.