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Lighthouse Investment Partners’s Amphastar Pharmaceuticals AMPH Stock Holding History

Lighthouse Investment Partners’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
2025
Q4 		– Sell
-21,600
Closed -$576K – 878
2025
Q3 		$576K Buy
+21,600
New +$558K 0.02% 499

Other funds holding AMPH

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Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
TD Asset Management
TD Asset Management Toronto, Ontario, Canada $115B AUM 41.58% 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 $3.37T AUM 44.26% 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
EIP
Epoch Investment Partners New York $16.5B AUM 24.3% 1-Year Est. Return
BTW
Boston Trust Walden Boston, Massachusetts $13.1B AUM 24.63% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Lighthouse Investment Partners's AMPH Position: Q4 2025 in Review

Lighthouse Investment Partners sold out of Amphastar Pharmaceuticals (AMPH) in Q4 2025, closing a stake of 21,600 shares — an estimated $576K sold.

Lighthouse Investment Partners first reported a position in AMPH in Q3 2025 and held it in 1 quarter. The position peaked at $576K in Q3 2025. 235 funds tracked by Wall St. Rank hold AMPH as of Q4 2025.

  • Lighthouse Investment Partners reported no remaining Amphastar Pharmaceuticals position as of Q4 2025 after selling out during the quarter.
  • Lighthouse Investment Partners sold 21,600 Amphastar Pharmaceuticals shares in Q4 2025, an estimated $576K.
  • Lighthouse Investment Partners first reported a position in Amphastar Pharmaceuticals in Q3 2025 and held it in 1 quarter.
  • Lighthouse Investment Partners's Amphastar Pharmaceuticals position peaked at $576K in Q3 2025.
  • 235 funds tracked by Wall St. Rank held Amphastar Pharmaceuticals as of Q4 2025.

Based on Lighthouse Investment Partners's 13F filing for Q4 2025, filed 17 Feb 2026.