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GF Fund Management’s Amphastar Pharmaceuticals AMPH Stock Holding History

GF Fund Management’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 		$19.4K Sell
963
-61
-6% -$1.23K ﹤0.01% 487
2026
Q1 		$20.1K Buy
1,024
+122
+14% +$2.98K ﹤0.01% 499
2025
Q4 		$24.2K Sell
902
-98
-10% -$2.52K ﹤0.01% 486
2025
Q3 		$26.6K Sell
1,000
-230
-19% -$5.94K ﹤0.01% 456
2025
Q2 		$28.2K Hold
1,230
– – ﹤0.01% 466
2025
Q1 		$35.7K Buy
1,230
+220
+22% +$7.03K ﹤0.01% 448
2024
Q4 		$37.5K Buy
+1,010
New +$46.2K ﹤0.01% 417

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

GF Fund Management's AMPH Position: Q2 2026 in Review

GF Fund Management reduced its Amphastar Pharmaceuticals (AMPH) stake by 6% in Q2 2026, selling an estimated $1.23K and leaving 963 shares worth $19.4K. The position accounts for ﹤0.01% of the portfolio, ranked #487.

GF Fund Management first reported a position in AMPH in Q4 2024 and has held it in 7 quarters since. The position peaked at $37.5K in Q4 2024. 212 funds tracked by Wall St. Rank hold AMPH as of Q2 2026.

  • GF Fund Management held 963 shares of Amphastar Pharmaceuticals worth $19.4K as of Q2 2026.
  • GF Fund Management sold 61 Amphastar Pharmaceuticals shares in Q2 2026, an estimated $1.23K.
  • Amphastar Pharmaceuticals made up ﹤0.01% of GF Fund Management's portfolio in Q2 2026, its #487 holding.
  • GF Fund Management first reported a position in Amphastar Pharmaceuticals in Q4 2024 and has held it in 7 quarters since.
  • GF Fund Management's Amphastar Pharmaceuticals position peaked at $37.5K in Q4 2024.
  • 212 funds tracked by Wall St. Rank held Amphastar Pharmaceuticals as of Q2 2026.

Based on GF Fund Management's 13F filing for Q2 2026, filed 7 Aug 2026.