Amprius Technologies, Inc. (AMPX) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

115,003,704Shares Outstanding

966,258Shares held by institutions

$9,440,341Value of institutional holdings

58.27%Institutional ownership %

15.77%Shares Changed QoQ

199No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Recent 13F filings as of December 2025 show that 199 institutional investors hold a position in Amprius Technologies, Inc. (NYSE:AMPX).

These investors collectively held 58.3% of the company's total shares outstanding in December 2025, up from 55.6% in September 2025.
Institutional share ownership changed by 15.77% QoQ, while the number of institutional owners saw an increase of 118.68% YoY.
The latest 13F cycle for Amprius Technologies reveals that of 199 total investors, 131 funds grew their exposure, whereas 50 reduced theirs and 18 made no changes.
The total number of shares held by institutions in Amprius Technologies increased to 67.01Mn as of December 2025, a net change of up by 9.13Mn shares quarter on quarter, and up 50.38Mn shares year over year.
BlackRock, Inc.'s holding of 8.82Mn shares as of December 31, 2025 makes it the primary institutional investor in Amprius Technologies, owning 7.67% of the stock.
Among the most significant buyers of Amprius Technologies during December 2025 were BlackRock, Inc. (1.37Mn), NORGES BANK (1.30Mn), Hudson Bay Capital Management LP (1.10Mn), WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC (984.91K), Qube Research & Technologies Ltd (874.08K).
Leading sellers of Amprius Technologies stock in December 2025 included CITADEL ADVISORS LLC (2.05Mn), BNP PARIBAS FINANCIAL MARKETS (1.24Mn), DRIEHAUS CAPITAL MANAGEMENT LLC (697.46K), TWO SIGMA ADVISERS, LP (332.50K), TWO SIGMA INVESTMENTS, LP (316.64K).
The top 10 institutional holders of Amprius Technologies for the quarter ending December 2025 included BlackRock, Inc. (8.82Mn), VANGUARD GROUP INC (7.13Mn), MORGAN STANLEY (2.81Mn), GEODE CAPITAL MANAGEMENT, LLC (2.68Mn), STATE STREET CORP (2.55Mn), DRIEHAUS CAPITAL MANAGEMENT LLC (2.39Mn), GOLDMAN SACHS GROUP INC (2.19Mn), UBS Group AG (2.10Mn), DEUTSCHE BANK AG\ (1.96Mn), SUSQUEHANNA INTERNATIONAL GROUP, LLP (1.69Mn).

199 Institutional Holders

966,258 Total Shares Held

Rows:

Download Data

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
BlackRock, Inc.	31 Dec, 2025	8,823,779	1,368,076	18.35%	$69,619,616.00
VANGUARD GROUP INC	31 Dec, 2025	7,128,657	616,037	9.46%	$56,245,105.00
MORGAN STANLEY	31 Dec, 2025	2,809,821	66,116	2.41%	$22,169,489.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	2,678,417	253,529	10.46%	$21,136,655.00
STATE STREET CORP	31 Dec, 2025	2,553,710	363,928	16.62%	$20,148,772.00
DRIEHAUS CAPITAL MANAGEMENT LLC	31 Dec, 2025	2,393,212	-697,457	-22.57%	$18,882,443.00
GOLDMAN SACHS GROUP INC	31 Dec, 2025	2,194,841	410,724	23.02%	$17,317,295.00
UBS Group AG	31 Dec, 2025	2,098,946	550,938	35.59%	$16,560,684.00
DEUTSCHE BANK AG\	31 Dec, 2025	1,955,018	-111,522	-5.40%	$15,425,092.00
SUSQUEHANNA INTERNATIONAL GROUP, LLP	31 Dec, 2025	1,691,500	786,030	86.81%	$13,345,935.00
VOLORIDGE INVESTMENT MANAGEMENT, LLC	31 Dec, 2025	1,602,001	-274,139	-14.61%	$12,639,788.00
Stephens Investment Management Group LLC	31 Dec, 2025	1,441,698	358,791	33.13%	$11,374,997.00
TWO SIGMA INVESTMENTS, LP	31 Dec, 2025	1,436,939	-316,638	-18.06%	$11,337,449.00
JANE STREET GROUP, LLC	31 Dec, 2025	1,329,025	-116,039	-8.03%	$10,486,007.00
NORGES BANK	31 Dec, 2025	1,304,838	1,304,838	0.00%	$10,295,172.00
Hudson Bay Capital Management LP	31 Dec, 2025	1,100,000	1,100,000	0.00%	$8,679,000.00
MILLENNIUM MANAGEMENT LLC	31 Dec, 2025	1,085,270	497,438	84.62%	$8,562,780.00
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	31 Dec, 2025	1,036,891	62,406	6.40%	$8,181,070.00
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC	31 Dec, 2025	984,906	984,906	0.00%	$7,770,908.00
NORTHERN TRUST CORP	31 Dec, 2025	963,171	110,892	13.01%	$7,599,419.00

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