Ameriprise’s Amprius Technologies AMPX Stock Holding History

Ameriprise’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	$993K	Sell	60,184 -17,825	-23%	-$232K	﹤0.01%	3299
2025 Q4	$615K	Buy	78,009 +44,995	+136%	+$514K	﹤0.01%	3547
2025 Q3	$347K	Buy	+33,014	New	+$260K	﹤0.01%	3742

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

Ameriprise's AMPX Position: Q1 2026 in Review

Ameriprise reduced its Amprius Technologies (AMPX) stake by 23% in Q1 2026, selling an estimated $232K and leaving 60,184 shares worth $993K. The position accounts for ﹤0.01% of the portfolio, ranked #3299.

Ameriprise first reported a position in AMPX in Q3 2025 and has held it in 3 quarters since. 245 funds tracked by Wall St. Rank hold AMPX as of Q1 2026.

Ameriprise held 60,184 shares of Amprius Technologies worth $993K as of Q1 2026.
Ameriprise sold 17,825 Amprius Technologies shares in Q1 2026, an estimated $232K.
Amprius Technologies made up ﹤0.01% of Ameriprise's portfolio in Q1 2026, its #3299 holding.
Ameriprise first reported a position in Amprius Technologies in Q3 2025 and has held it in 3 quarters since.
245 funds tracked by Wall St. Rank held Amprius Technologies as of Q1 2026.

Based on Ameriprise's 13F filing for Q1 2026, filed 15 May 2026.