Atom Investors’s Amprius Technologies AMPX Stock Holding History

Atom Investors’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	-10,472	Closed	-$110K	–	574
2025 Q3	$110K	Buy	+10,472	New	+$82.4K	0.01%	548

Other funds holding AMPX

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

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 New York $871B AUM 31.28% 1-Year Est. Return

UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return

Deutsche Bank Frankfurt Am Main Ge, Germany $303B AUM 30.15% 1-Year Est. Return

Susquehanna International Group Bala Cynwyd, Pennsylvania $893B AUM 36.07% 1-Year Est. Return

Atom Investors's AMPX Position: Q4 2025 in Review

Atom Investors sold out of Amprius Technologies (AMPX) in Q4 2025, closing a stake of 10,472 shares — an estimated $110K sold.

Atom Investors first reported a position in AMPX in Q3 2025 and held it in 1 quarter. The position peaked at $110K in Q3 2025. 204 funds tracked by Wall St. Rank hold AMPX as of Q4 2025.

Atom Investors reported no remaining Amprius Technologies position as of Q4 2025 after selling out during the quarter.
Atom Investors sold 10,472 Amprius Technologies shares in Q4 2025, an estimated $110K.
Atom Investors first reported a position in Amprius Technologies in Q3 2025 and held it in 1 quarter.
Atom Investors's Amprius Technologies position peaked at $110K in Q3 2025.
204 funds tracked by Wall St. Rank held Amprius Technologies as of Q4 2025.

Based on Atom Investors's 13F filing for Q4 2025, filed 17 Feb 2026.