RHUMBLINE ADVISERS

Position in AMPX — Amprius Technologies, Inc.

CIK 1115418 BOSTON, MA

Position in AMPX

as of Jun 30, 2026 · filed Aug 12, 2026 Compact

Position Value

$2,327,967

+$100,880 QoQ

Shares Held

167,963

+27.2% QoQ

Ownership

0.115%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

#80

of 259 holders

Holding Since

Jun 2023

13 quarters on record

Voting authority Sole 22% Shared 0% None 78%

Industrials · as of Jun 30, 2026

RHUMBLINE ADVISERS holds $600,344,453 across 28 Electrical Equipment & Parts names. AMPX ranks #17 (0.4% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	VRT	Vertiv Holdings Co	651,693	$218,199,850
2	BE	Bloom Energy Corp	309,709	$93,748,914
3	NVT	nVent Electric plc	433,845	$73,584,450
4	HUBB	Hubbell Inc	103,533	$54,168,465
5	AEIS	Advanced Energy Industries Inc	108,580	$40,486,224
6	AYI	Acuity Inc. (De)	77,919	$29,348,970
7	ENS	EnerSys	119,013	$27,827,619
8	POWL	Powell Industries Inc	57,957	$16,596,566

13 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$2,327,967	167,963	+27.2%	Shares	Sole	2026-08-12
2026-03-31	$2,227,087	132,093	+5.5%	Shares	Sole	2026-05-12
2025-12-31	$987,465	125,154	-3.7%	Shares	Sole	2026-02-13
2025-09-30	$1,367,505	129,991	+5.5%	Shares	Sole	2025-11-06
2025-06-30	$518,924	123,260	+685.6%	Shares	Sole	2025-08-12
2025-03-31	$42,049	15,690	+61.1%	Shares	Sole	2025-05-29
2024-12-31	$27,269	9,739	+49.4%	Shares	Sole	2025-05-29
2024-09-30	$7,233	6,517	-15.0%	Shares	Sole	2024-11-12
2024-06-30	$9,740	7,670	+46.3%	Shares	Sole	2024-08-01
2024-03-31	$13,888	5,241	-1.9%	Shares	Sole	2024-05-09
2023-12-31	$28,264	5,343	0.0%	Shares	Sole	2024-02-08
2023-09-30	$25,325	5,343	+14.3%	Shares	Sole	2023-11-09
2023-06-30	$33,559	4,674	—	Shares	Sole	2023-08-08
No filing history on record for this holder in this stock.