AllianceBernstein’s Amprius Technologies AMPX Stock Holding History

AllianceBernstein’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	$854K	Sell	108,260 -15,600	-13%	-$203K	﹤0.01%	2401
2025 Q4	$977K	Hold	123,860	–	–	﹤0.01%	2352
2025 Q3	$1.3M	Sell	123,860 -40,200	-25%	-$316K	﹤0.01%	2221
2025 Q2	$691K	Buy	164,060 +105,600	+181%	+$297K	﹤0.01%	2479
2025 Q1	$157K	Hold	58,460	–	–	﹤0.01%	2982
2024 Q4	$164K	Hold	58,460	–	–	﹤0.01%	3061
2024 Q3	$64.9K	Buy	58,460 +4,990	+9%	+$5.5K	﹤0.01%	3171
2024 Q2	$67.9K	Buy	53,470 +41,310	+340%	+$67.4K	﹤0.01%	3163
2024 Q1	$32.2K	Hold	12,160	–	–	﹤0.01%	3108
2023 Q4	$64.3K	Hold	12,160	–	–	﹤0.01%	3113
2023 Q3	$57.6K	Sell	12,160 -710	-6%	-$4.18K	﹤0.01%	3126
2023 Q2	$92.4K	Buy	+12,870	New	+$110K	﹤0.01%	3088

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

AllianceBernstein's AMPX Position: Q1 2026 in Review

AllianceBernstein reduced its Amprius Technologies (AMPX) stake by 13% in Q1 2026, selling an estimated $203K and leaving 108,260 shares worth $854K. The position accounts for ﹤0.01% of the portfolio, ranked #2401.

AllianceBernstein first reported a position in AMPX in Q2 2023 and has held it in 12 quarters since. The position peaked at $1.3M in Q3 2025. 245 funds tracked by Wall St. Rank hold AMPX as of Q1 2026.

AllianceBernstein held 108,260 shares of Amprius Technologies worth $854K as of Q1 2026.
AllianceBernstein sold 15,600 Amprius Technologies shares in Q1 2026, an estimated $203K.
Amprius Technologies made up ﹤0.01% of AllianceBernstein's portfolio in Q1 2026, its #2401 holding.
AllianceBernstein first reported a position in Amprius Technologies in Q2 2023 and has held it in 12 quarters since.
AllianceBernstein's Amprius Technologies position peaked at $1.3M in Q3 2025.
245 funds tracked by Wall St. Rank held Amprius Technologies as of Q1 2026.

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