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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
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 $5.72T AUM 30.48% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
TD Asset Management
TD Asset Management Toronto, Ontario, Canada $123B AUM 34.51% 1-Year Est. Return
Fuller & Thaler Asset Management
Fuller & Thaler Asset Management San Mateo, California $29.7B AUM 43.33% 1-Year Est. Return
Marshall Wace
Marshall Wace London, United Kingdom $100B AUM 35.1% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
BTW
Boston Trust Walden Boston, Massachusetts $12.2B AUM 12.45% 1-Year Est. Return

GF Fund Management's AMPH Position: Q1 2026 in Review

GF Fund Management increased its Amphastar Pharmaceuticals (AMPH) stake by 14% in Q1 2026, buying an estimated $2.98K and bringing the position to 1,024 shares worth $20.1K. The position accounts for ﹤0.01% of the portfolio, ranked #499.

GF Fund Management first reported a position in AMPH in Q4 2024 and has held it in 6 quarters since. The position peaked at $37.5K in Q4 2024. 215 funds tracked by Wall St. Rank hold AMPH as of Q1 2026.

  • GF Fund Management held 1,024 shares of Amphastar Pharmaceuticals worth $20.1K as of Q1 2026.
  • GF Fund Management bought 122 Amphastar Pharmaceuticals shares in Q1 2026, an estimated $2.98K.
  • Amphastar Pharmaceuticals made up ﹤0.01% of GF Fund Management's portfolio in Q1 2026, its #499 holding.
  • GF Fund Management first reported a position in Amphastar Pharmaceuticals in Q4 2024 and has held it in 6 quarters since.
  • GF Fund Management's Amphastar Pharmaceuticals position peaked at $37.5K in Q4 2024.
  • 215 funds tracked by Wall St. Rank held Amphastar Pharmaceuticals as of Q1 2026.

Based on GF Fund Management's 13F filing for Q1 2026, filed 15 Apr 2026.