Vanguard Global Advisers
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Vanguard Global Advisers’s Amphastar Pharmaceuticals AMPH Stock Holding History

Vanguard Global Advisers’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 		$1.77M Buy
87,639
+37,476
+75% +$756K ﹤0.01% 1349
2026
Q1 		$983K Buy
+50,163
New +$1.23M ﹤0.01% 1665

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

Vanguard Global Advisers's AMPH Position: Q2 2026 in Review

Vanguard Global Advisers increased its Amphastar Pharmaceuticals (AMPH) stake by 75% in Q2 2026, buying an estimated $756K and bringing the position to 87,639 shares worth $1.77M. The position accounts for ﹤0.01% of the portfolio, ranked #1349.

Vanguard Global Advisers first reported a position in AMPH in Q1 2026 and has held it in 2 quarters since. 209 funds tracked by Wall St. Rank hold AMPH as of Q2 2026.

  • Vanguard Global Advisers held 87,639 shares of Amphastar Pharmaceuticals worth $1.77M as of Q2 2026.
  • Vanguard Global Advisers bought 37,476 Amphastar Pharmaceuticals shares in Q2 2026, an estimated $756K.
  • Amphastar Pharmaceuticals made up ﹤0.01% of Vanguard Global Advisers's portfolio in Q2 2026, its #1349 holding.
  • Vanguard Global Advisers first reported a position in Amphastar Pharmaceuticals in Q1 2026 and has held it in 2 quarters since.
  • 209 funds tracked by Wall St. Rank held Amphastar Pharmaceuticals as of Q2 2026.

Based on Vanguard Global Advisers's 13F filing for Q2 2026, filed 13 Aug 2026.