SEC Form 4 · Updated Daily

ON

— ON SEMICONDUCTOR CORPORATION Ownership

Insider and institutional ownership derived from SEC Form 4 filings. Click any owner to see their holdings across every company they’ve filed on, and how their position has changed over time.

Financials Ownership

Current Reporting Owners

Owner	Role	Shares Owned	As Of	Last Activity
El-Khoury Hassane	Director · Officer	1,054,123	2026-02-21	F
Thad Trent	Officer	271,194	2026-04-24	S
KEETON SIMON	Officer	214,123	2026-02-21	F
GOPALSWAMY SUDHIR	Officer	173,588	2026-05-26	F
MASCARENAS PAUL ANTHONY	Director	57,590	2026-07-02	A
Yan Christine Y	Director	48,655	2026-05-14	A
Deitrich Thomas	Director	26,060	2026-05-14	A
CARTER SUSAN K	Director	25,638	2026-05-14	A
WATERS GREGORY L	Director	24,524	2026-05-14	A
KIDDOO BRUCE E	Director	19,216	2026-05-14	A

Recent Filings

Date	Owner	Activity	Shares	Price	Owned After
2026-07-02	MASCARENAS PAUL ANTHONY	Grant / award	116	$91.22	57,590
2026-05-26	GOPALSWAMY SUDHIR	Tax withholding	470	$127.00	173,588
2026-05-14	MASCARENAS PAUL ANTHONY	Grant / award	1,986	$0.00	57,474
2026-05-14	KIDDOO BRUCE E	Grant / award	1,986	$0.00	19,216
2026-05-14	Yan Christine Y	Grant / award	1,986	$0.00	48,655
2026-05-14	CARTER SUSAN K	Grant / award	1,986	$0.00	25,638
2026-05-14	WATERS GREGORY L	Grant / award	1,986	$0.00	24,524
2026-05-14	Deitrich Thomas	Grant / award	1,986	$0.00	26,060
2026-04-24	Thad Trent	Open-market sale	30,000	$100.00	271,194
2026-04-23	Thad Trent	Open-market sale	30,000	$93.00	301,194
2026-04-16	Thad Trent	Open-market sale	30,000	$80.00	331,194
2026-04-03	MASCARENAS PAUL ANTHONY	Grant / award	168	$62.19	55,488
2026-03-13	GOPALSWAMY SUDHIR	Open-market sale	6,114	$58.67	173,943
2026-02-21	KEETON SIMON	Tax withholding	7,788	$69.11	214,123
2026-02-21	Thad Trent	Tax withholding	10,383	$69.11	361,079
2026-02-21	GOPALSWAMY SUDHIR	Tax withholding	9,583	$69.11	180,057
2026-02-21	El-Khoury Hassane	Tax withholding	36,802	$69.11	1,054,123
2026-02-20	KEETON SIMON	Tax withholding	3,130	$69.11	221,911
2026-02-20	KEETON SIMON	Grant / award	26,046	$0.00	225,041
2026-02-20	Thad Trent	Tax withholding	4,173	$69.11	371,462
2026-02-20	Thad Trent	Grant / award	36,175	$0.00	375,635
2026-02-20	GOPALSWAMY SUDHIR	Tax withholding	1,455	$69.11	189,640
2026-02-20	GOPALSWAMY SUDHIR	Grant / award	31,834	$0.00	191,095
2026-02-20	El-Khoury Hassane	Grant / award	75,315	$0.00	1,090,925
2026-02-17	KEETON SIMON	Open-market sale	44,263	$71.77	198,995
2026-02-17	KEETON SIMON	Open-market sale	4,597	$71.56	243,258
2026-02-12	Thad Trent	Open-market sale	49,500	$70.87	339,460
2026-02-12	Thad Trent	Open-market sale	7,000	$72.88	388,960
2026-02-12	Thad Trent	Open-market sale	2,200	$73.39	395,960
2026-02-12	Thad Trent	Open-market sale	1,300	$71.70	398,160
2026-02-12	El-Khoury Hassane	Open-market sale	19,900	$73.02	1,015,610
2026-02-12	El-Khoury Hassane	Open-market sale	100	$73.56	1,035,510
2026-02-12	KIDDOO BRUCE E	Gift	3,570	$0.00	17,230
2026-02-10	GOPALSWAMY SUDHIR	Tax withholding	6,191	$67.38	159,261
2026-02-10	Thad Trent	Tax withholding	6,709	$67.38	399,460
2026-02-10	El-Khoury Hassane	Tax withholding	20,762	$67.38	1,035,610
2026-02-10	KEETON SIMON	Tax withholding	5,032	$67.38	247,855
2026-02-06	El-Khoury Hassane	Tax withholding	34,460	$65.20	1,056,372
2026-02-06	Thad Trent	Tax withholding	12,270	$65.20	406,169
2026-02-06	KEETON SIMON	Tax withholding	9,232	$65.20	252,887

Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.