RhumbLine Advisers’s Amprius Technologies AMPX Stock Holding History

RhumbLine Advisers’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	$2.23M	Buy	132,093 +6,939	+6%	+$90.5K	﹤0.01%	1792
2025 Q4	$987K	Sell	125,154 -4,837	-4%	-$55.3K	﹤0.01%	2227
2025 Q3	$1.37M	Buy	129,991 +6,731	+5%	+$52.9K	﹤0.01%	2086
2025 Q2	$519K	Buy	123,260 +107,570	+686%	+$303K	﹤0.01%	2665
2025 Q1	$42K	Buy	15,690 +5,951	+61%	+$17.6K	﹤0.01%	3613
2024 Q4	$27.3K	Buy	9,739 +3,222	+49%	+$5.63K	﹤0.01%	3763
2024 Q3	$7.23K	Sell	6,517 -1,153	-15%	-$1.27K	﹤0.01%	3933
2024 Q2	$9.73K	Buy	7,670 +2,429	+46%	+$3.96K	﹤0.01%	3982
2024 Q1	$13.9K	Sell	5,241 -102	-2%	-$379	﹤0.01%	3817
2023 Q4	$28.3K	Hold	5,343	–	–	﹤0.01%	3727
2023 Q3	$25.3K	Buy	5,343 +669	+14%	+$3.94K	﹤0.01%	3748
2023 Q2	$33.6K	Buy	+4,674	New	+$40.1K	﹤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

RhumbLine Advisers's AMPX Position: Q1 2026 in Review

RhumbLine Advisers increased its Amprius Technologies (AMPX) stake by 5.5% in Q1 2026, buying an estimated $90.5K and bringing the position to 132,093 shares worth $2.23M. The position accounts for ﹤0.01% of the portfolio, ranked #1792.

RhumbLine Advisers first reported a position in AMPX in Q2 2023 and has held it in 12 quarters since. 245 funds tracked by Wall St. Rank hold AMPX as of Q1 2026.

RhumbLine Advisers held 132,093 shares of Amprius Technologies worth $2.23M as of Q1 2026.
RhumbLine Advisers bought 6,939 Amprius Technologies shares in Q1 2026, an estimated $90.5K.
Amprius Technologies made up ﹤0.01% of RhumbLine Advisers's portfolio in Q1 2026, its #1792 holding.
RhumbLine Advisers first reported a position in Amprius Technologies in Q2 2023 and has held it in 12 quarters since.
245 funds tracked by Wall St. Rank held Amprius Technologies as of Q1 2026.

Based on RhumbLine Advisers's 13F filing for Q1 2026, filed 12 May 2026.