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Entropy Technologies’s Amprius Technologies AMPX Stock Holding History

Entropy Technologies’s Portfolio AMPX Stock Details AMPX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q4 		– Sell
-90,101
Closed -$948K – 871
2025
Q3 		$948K Buy
+90,101
New +$709K 0.07% 342

Other funds holding AMPX

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Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
DCM
Driehaus Capital Management Chicago, Illinois $13.6B AUM 173.98% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return
Deutsche Bank
Deutsche Bank Frankfurt Am Main Ge, Germany $303B AUM 30.15% 1-Year Est. Return
Susquehanna International Group
Susquehanna International Group Bala Cynwyd, Pennsylvania $893B AUM 36.07% 1-Year Est. Return

Entropy Technologies's AMPX Position: Q4 2025 in Review

Entropy Technologies sold out of Amprius Technologies (AMPX) in Q4 2025, closing a stake of 90,101 shares — an estimated $948K sold.

Entropy Technologies first reported a position in AMPX in Q3 2025 and held it in 1 quarter. The position peaked at $948K in Q3 2025. 204 funds tracked by Wall St. Rank hold AMPX as of Q4 2025.

  • Entropy Technologies reported no remaining Amprius Technologies position as of Q4 2025 after selling out during the quarter.
  • Entropy Technologies sold 90,101 Amprius Technologies shares in Q4 2025, an estimated $948K.
  • Entropy Technologies first reported a position in Amprius Technologies in Q3 2025 and held it in 1 quarter.
  • Entropy Technologies's Amprius Technologies position peaked at $948K in Q3 2025.
  • 204 funds tracked by Wall St. Rank held Amprius Technologies as of Q4 2025.

Based on Entropy Technologies's 13F filing for Q4 2025, filed 13 Feb 2026.