IRIDIAN ASSET MANAGEMENT LLC/CT

Position in ON — On Semiconductor Corp

CIK 1033427 WESTPORT, CT

Position in ON

as of Jun 30, 2026 · filed Jul 29, 2026 Compact

Position Value

$6,899,434

+$1,458,029 QoQ

Shares Held

72,979

-17.0% QoQ

Ownership

0.019%

of shares outstanding

% of Portfolio

2.38%

of 13F equity value

Holder Rank

#243

of 993 holders

Holding Since

Sep 2021

20 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Technology · as of Jun 30, 2026

IRIDIAN ASSET MANAGEMENT LLC/CT holds $6,899,434 across 1 Semiconductors name. ON ranks #1 (100.0% of the industry book) .

#	Ticker	Company	Shares	Value (USD)	Open
1	ON	On Semiconductor Corp This page	72,979	$6,899,434

20 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$6,899,434	72,979	-17.0%	Shares	Sole	2026-07-29
2026-03-31	$5,441,405	87,878	-4.1%	Shares	Sole	2026-04-24
2025-12-31	$4,961,872	91,632	+45.8%	Shares	Sole	2026-01-23
2025-09-30	$3,099,330	62,854	-9.9%	Shares	Sole	2025-10-24
2025-06-30	$3,655,073	69,740	-33.9%	Shares	Sole	2025-08-14
2025-03-31	$4,291,167	105,460	+19.4%	Shares	Sole	2025-04-30
2024-12-31	$5,570,782	88,355	-2.6%	Shares	Sole	2025-01-28
2024-09-30	$6,586,380	90,709	+23.1%	Shares	Sole	2024-10-25
2024-06-30	$5,051,380	73,689	+43.2%	Shares	Sole	2024-07-26
2024-03-31	$3,785,986	51,475	+7.0%	Shares	Sole	2024-05-01
2023-12-31	$4,018,294	48,106	+29.1%	Shares	Sole	2024-01-26
2023-09-30	$3,462,573	37,252	-62.4%	Shares	Sole	2023-10-30
2023-06-30	$9,365,689	99,024	-16.7%	Shares	Sole	2023-08-09
2023-03-31	$9,791,140	118,940	-32.8%	Shares	Sole	2023-04-28
2022-12-31	$11,035,997	176,944	-14.6%	Shares	Sole	2023-01-31
2022-09-30	$12,921,445	207,307	-32.6%	Shares	Sole	2022-11-07
2022-06-30	$15,478,173	307,656	-4.4%	Shares	Sole	2022-07-29
2022-03-31	$20,141,637	321,700	-16.2%	Shares	Sole	2022-05-02
2021-12-31	$26,065,862	383,773	-59.6%	Shares	Sole	2022-02-10
2021-09-30	$43,515,735	950,748	—	Shares	Sole	2021-11-10
No filing history on record for this holder in this stock.