Polar Asset Management Partners’s Amprius Technologies AMPX Stock Holding History

Polar Asset Management Partners’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
2026 Q1	–	Sell	-78,600	Closed	-$620K	–	691
2025 Q4	$620K	Buy	+78,600	New	+$899K	0.01%	460
2025 Q3	–	Sell	-274,788	Closed	-$1.16M	–	673
2025 Q2	$1.16M	Buy	+274,788	New	+$773K	0.02%	352

Other funds holding AMPX

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

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Jane Street New York $777B AUM 61.18% 1-Year Est. Return

DCM

Driehaus Capital Management Chicago, Illinois $13.6B AUM 173.98% 1-Year Est. Return

Two Sigma Investments New York $124B AUM 33.93% 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

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

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

Polar Asset Management Partners's AMPX Position: Q1 2026 in Review

Polar Asset Management Partners sold out of Amprius Technologies (AMPX) in Q1 2026, closing a stake of 78,600 shares — an estimated $620K sold.

Polar Asset Management Partners first reported a position in AMPX in Q2 2025 and held it in 2 quarters. The position peaked at $1.16M in Q2 2025. 245 funds tracked by Wall St. Rank hold AMPX as of Q1 2026.

Polar Asset Management Partners reported no remaining Amprius Technologies position as of Q1 2026 after selling out during the quarter.
Polar Asset Management Partners sold 78,600 Amprius Technologies shares in Q1 2026, an estimated $620K.
Polar Asset Management Partners first reported a position in Amprius Technologies in Q2 2025 and held it in 2 quarters.
Polar Asset Management Partners's Amprius Technologies position peaked at $1.16M in Q2 2025.
245 funds tracked by Wall St. Rank held Amprius Technologies as of Q1 2026.

Based on Polar Asset Management Partners's 13F filing for Q1 2026, filed 15 May 2026.