ON

On Semiconductor Corp

Insider trading activity for On Semiconductor Corp, straight from SEC Form 4 filings. Net figures below count open-market buys and sales only — grants, option exercises and tax withholding are excluded because they are compensation, not decisions to trade.

Past 3 months

net buying

Bought(0 · 0 insiders): $0
Sold(0 · 0 insiders): $0

Past 6 months

-$8.2M

net selling

Bought(0 · 0 insiders): $0
Sold(3 · 1 insiders): $8.2M

Past 12 months

-$20.1M

net selling

Bought(0 · 0 insiders): $0
Sold(14 · 4 insiders): $20.1M

Transaction history

The 69 most recent Form 4 transactions.

Open in screener →

Insider transactions, newest first: date, security, transaction type, size and a link to the filing each row came from.
Date	Insider	Role	Type	Shares	Price	Value	Δ Own	Filing
Jul 2	Mascarenas Paul Anthony	Director	AGRANT	116	$91.22	$10.6K	+0.2%	Open the original filing on SEC.gov
May 26	Gopalswamy Sudhir	Group President, AMG &…	FTAX	470	$127.00	$59.7K	-0.3%	Open the original filing on SEC.gov
May 14	Waters Gregory L	Director	AGRANT	1,986	—	—	+8.8%	Open the original filing on SEC.gov
May 14	Yan Christine Y	Director	AGRANT	1,986	—	—	+4.3%	Open the original filing on SEC.gov
May 14	Mascarenas Paul Anthony	Director	AGRANT	1,986	—	—	+3.6%	Open the original filing on SEC.gov
May 14	Kiddoo Bruce E	Director	AGRANT	1,986	—	—	+11.5%	Open the original filing on SEC.gov
May 14	Deitrich Thomas	Director	AGRANT	1,986	—	—	+8.3%	Open the original filing on SEC.gov
May 14	Carter Susan K	Director	AGRANT	1,986	—	—	+8.4%	Open the original filing on SEC.gov
Apr 24	Thad Trent	Exec VP & CFO	SSELL◷	30,000	$100.00	$3M	-10.0%	Open the original filing on SEC.gov
Apr 23	Thad Trent	Exec VP & CFO	SSELL◷	30,000	$93.00	$2.8M	-9.1%	Open the original filing on SEC.gov
Apr 16	Thad Trent	Exec VP & CFO	SSELL◷	30,000	$80.00	$2.4M	-8.3%	Open the original filing on SEC.gov
Apr 3	Mascarenas Paul Anthony	Director	AGRANT	168	$62.19	$10.4K	+0.3%	Open the original filing on SEC.gov
Mar 13	Gopalswamy Sudhir	Group President, AMG &…	SSELL	6,114	$58.67	$358.7K	-3.4%	Open the original filing on SEC.gov
Feb 21	Thad Trent	Exec VP & CFO	FTAX	10,383	$69.11	$717.6K	-2.8%	Open the original filing on SEC.gov
Feb 21	Keeton Simon	Group President, PSG	FTAX	7,788	$69.11	$538.2K	-3.5%	Open the original filing on SEC.gov
Feb 21	Gopalswamy Sudhir	Group President, AMG &…	FTAX	9,583	$69.11	$662.3K	-5.1%	Open the original filing on SEC.gov
Feb 21	El-Khoury Hassane	CEO & President	FTAX	36,802	$69.11	$2.5M	-3.4%	Open the original filing on SEC.gov
Feb 20	Thad Trent	Exec VP & CFO	FTAX	4,173	$69.11	$288.4K	-1.1%	Open the original filing on SEC.gov
Feb 20	Thad Trent	Exec VP & CFO	AGRANT	36,175	—	—	+10.7%	Open the original filing on SEC.gov
Feb 20	Keeton Simon	Group President, PSG	FTAX	3,130	$69.11	$216.3K	-1.4%	Open the original filing on SEC.gov
Feb 20	Keeton Simon	Group President, PSG	AGRANT	26,046	—	—	+13.1%	Open the original filing on SEC.gov
Feb 20	Gopalswamy Sudhir	Group President, AMG &…	FTAX	1,455	$69.11	$100.6K	-0.8%	Open the original filing on SEC.gov
Feb 20	Gopalswamy Sudhir	Group President, AMG &…	AGRANT	31,834	—	—	+20.0%	Open the original filing on SEC.gov
Feb 20	El-Khoury Hassane	CEO & President	AGRANT	75,315	—	—	+7.4%	Open the original filing on SEC.gov
Feb 17	Keeton Simon	Group President, PSG	SSELL	44,263	$71.77	$3.2M	-18.2%	Open the original filing on SEC.gov
Feb 17	Keeton Simon	Group President, PSG	SSELL	4,597	$71.56	$328.9K	-1.8%	Open the original filing on SEC.gov
Feb 12	Thad Trent	Exec VP & CFO	SSELL◷	49,500	$70.87	$3.5M	-12.7%	Open the original filing on SEC.gov
Feb 12	Thad Trent	Exec VP & CFO	SSELL◷	7,000	$72.88	$510.1K	-1.8%	Open the original filing on SEC.gov
Feb 12	Thad Trent	Exec VP & CFO	SSELL◷	2,200	$73.39	$161.5K	-0.5%	Open the original filing on SEC.gov
Feb 12	Thad Trent	Exec VP & CFO	SSELL◷	1,300	$71.70	$93.2K	-0.3%	Open the original filing on SEC.gov
Feb 12	El-Khoury Hassane	CEO & President	SSELL	19,900	$73.02	$1.5M	-1.9%	Open the original filing on SEC.gov
Feb 12	El-Khoury Hassane	CEO & President	SSELL	100	$73.56	$7.4K	<0.1%	Open the original filing on SEC.gov
Feb 12	Kiddoo Bruce E	Director	GGIFT	3,570	—	—	-17.2%	Open the original filing on SEC.gov
Feb 10	Thad Trent	Exec VP & CFO	FTAX◷	6,709	$67.38	$452.1K	-1.7%	Open the original filing on SEC.gov
Feb 10	Keeton Simon	Group President, PSG	FTAX	5,032	$67.38	$339.1K	-2.0%	Open the original filing on SEC.gov
Feb 10	Gopalswamy Sudhir	Group President, AMG &…	FTAX	6,191	$67.38	$417.1K	-3.7%	Open the original filing on SEC.gov
Feb 10	El-Khoury Hassane	CEO & President	FTAX	20,762	$67.38	$1.4M	-2.0%	Open the original filing on SEC.gov
Feb 6	Thad Trent	Exec VP & CFO	FTAX	12,270	$65.20	$800K	-2.9%	Open the original filing on SEC.gov
Feb 6	Keeton Simon	Group President, PSG	FTAX	9,232	$65.20	$601.9K	-3.5%	Open the original filing on SEC.gov
Feb 6	Gopalswamy Sudhir	Group President, AMG &…	FTAX	6,041	$65.20	$393.9K	-3.5%	Open the original filing on SEC.gov
Feb 6	El-Khoury Hassane	CEO & President	FTAX	34,460	$65.20	$2.2M	-3.2%	Open the original filing on SEC.gov
Feb 5	Thad Trent	Exec VP & CFO	AGRANT	3,441	—	—	+0.8%	Open the original filing on SEC.gov
Feb 5	Thad Trent	Exec VP & CFO	AGRANT	4,371	—	—	+1.1%	Open the original filing on SEC.gov
Feb 5	Thad Trent	Exec VP & CFO	AGRANT	31,050	—	—	+8.2%	Open the original filing on SEC.gov
Feb 5	Keeton Simon	Group President, PSG	AGRANT	2,581	—	—	+1.0%	Open the original filing on SEC.gov
Feb 5	Keeton Simon	Group President, PSG	AGRANT	3,279	—	—	+1.3%	Open the original filing on SEC.gov
Feb 5	Keeton Simon	Group President, PSG	AGRANT	23,287	—	—	+10.0%	Open the original filing on SEC.gov
Feb 5	Gopalswamy Sudhir	Group President, AMG &…	AGRANT	401	—	—	+0.2%	Open the original filing on SEC.gov
Feb 5	Gopalswamy Sudhir	Group President, AMG &…	AGRANT	1,239	—	—	+0.7%	Open the original filing on SEC.gov
Feb 5	Gopalswamy Sudhir	Group President, AMG &…	AGRANT	2,581	—	—	+1.5%	Open the original filing on SEC.gov
Feb 5	Gopalswamy Sudhir	Group President, AMG &…	AGRANT	23,287	—	—	+16.2%	Open the original filing on SEC.gov
Feb 5	El-Khoury Hassane	CEO & President	AGRANT	9,604	—	—	+0.9%	Open the original filing on SEC.gov
Feb 5	El-Khoury Hassane	CEO & President	AGRANT	12,202	—	—	+1.1%	Open the original filing on SEC.gov
Feb 5	El-Khoury Hassane	CEO & President	AGRANT	90,966	—	—	+9.3%	Open the original filing on SEC.gov
Dec 19, 2025	Mascarenas Paul Anthony	Director	AGRANT	189	$55.21	$10.4K	+0.3%	Open the original filing on SEC.gov
Dec 4, 2025	Keeton Simon	Group President, PSG	SSELL	21,000	$55.72	$1.2M	-8.3%	Open the original filing on SEC.gov
Dec 3, 2025	Thad Trent	Exec VP & CFO	SSELL	20,000	$55.05	$1.1M	-5.0%	Open the original filing on SEC.gov
Oct 3, 2025	Mascarenas Paul Anthony	Director	AGRANT	212	$49.27	$10.4K	+0.4%	Open the original filing on SEC.gov
Aug 13, 2025	El-Khoury Hassane	CEO & President	SSELL	15,000	$51.22	$768.3K	-1.5%	Open the original filing on SEC.gov
Jul 3, 2025	Mascarenas Paul Anthony	Director	AGRANT	185	$56.60	$10.5K	+0.3%	Open the original filing on SEC.gov
Jun 12, 2025	Campbell Alan	Director	SSELL◷	5,371	$51.16	$274.8K	-6.0%	Open the original filing on SEC.gov
May 26, 2025	Gopalswamy Sudhir	Group President, AMG &…	FTAX	470	$41.27	$19.4K	-0.3%	Open the original filing on SEC.gov
May 15, 2025	Yan Christine Y	Director	AGRANT	5,054	—	—	+12.1%	Open the original filing on SEC.gov
May 15, 2025	Waters Gregory L	Director	AGRANT	5,054	—	—	+28.9%	Open the original filing on SEC.gov
May 15, 2025	Mascarenas Paul Anthony	Director	AGRANT	5,054	—	—	+10.2%	Open the original filing on SEC.gov
May 15, 2025	Kiddoo Bruce E	Director	AGRANT	5,054	—	—	+32.1%	Open the original filing on SEC.gov
May 15, 2025	Deitrich Thomas	Director	AGRANT	5,054	—	—	+26.6%	Open the original filing on SEC.gov
May 15, 2025	Campbell Alan	Director	AGRANT	5,054	—	—	+5.9%	Open the original filing on SEC.gov
May 15, 2025	Carter Susan K	Director	AGRANT	5,054	—	—	+27.2%	Open the original filing on SEC.gov

AGRANT$10.6K

Mascarenas Paul Anthony · DirectorJul 2

116 sh @ $91.22 · +0.2% own

FTAX$59.7K

Gopalswamy Sudhir · Group President,…May 26

470 sh @ $127.00 · -0.3% own

AGRANT—

Waters Gregory L · DirectorMay 14

1,986 sh · +8.8% own

AGRANT—

Yan Christine Y · DirectorMay 14

1,986 sh · +4.3% own

AGRANT—

Mascarenas Paul Anthony · DirectorMay 14

1,986 sh · +3.6% own

AGRANT—

Kiddoo Bruce E · DirectorMay 14

1,986 sh · +11.5% own

AGRANT—

Deitrich Thomas · DirectorMay 14

1,986 sh · +8.3% own

AGRANT—

Carter Susan K · DirectorMay 14

1,986 sh · +8.4% own

SSELL◷$3M

Thad Trent · Exec VP & CFOApr 24

30,000 sh @ $100.00 · -10.0% own

SSELL◷$2.8M

Thad Trent · Exec VP & CFOApr 23

30,000 sh @ $93.00 · -9.1% own

SSELL◷$2.4M

Thad Trent · Exec VP & CFOApr 16

30,000 sh @ $80.00 · -8.3% own

AGRANT$10.4K

Mascarenas Paul Anthony · DirectorApr 3

168 sh @ $62.19 · +0.3% own

SSELL$358.7K

Gopalswamy Sudhir · Group President,…Mar 13

6,114 sh @ $58.67 · -3.4% own

FTAX$717.6K

Thad Trent · Exec VP & CFOFeb 21

10,383 sh @ $69.11 · -2.8% own

FTAX$538.2K

Keeton Simon · Group President,…Feb 21

7,788 sh @ $69.11 · -3.5% own

FTAX$662.3K

Gopalswamy Sudhir · Group President,…Feb 21

9,583 sh @ $69.11 · -5.1% own

FTAX$2.5M

El-Khoury Hassane · CEO & PresidentFeb 21

36,802 sh @ $69.11 · -3.4% own

FTAX$288.4K

Thad Trent · Exec VP & CFOFeb 20

4,173 sh @ $69.11 · -1.1% own

AGRANT—

Thad Trent · Exec VP & CFOFeb 20

36,175 sh · +10.7% own

FTAX$216.3K

Keeton Simon · Group President,…Feb 20

3,130 sh @ $69.11 · -1.4% own

AGRANT—

Keeton Simon · Group President,…Feb 20

26,046 sh · +13.1% own

FTAX$100.6K

Gopalswamy Sudhir · Group President,…Feb 20

1,455 sh @ $69.11 · -0.8% own

AGRANT—

Gopalswamy Sudhir · Group President,…Feb 20

31,834 sh · +20.0% own

AGRANT—

El-Khoury Hassane · CEO & PresidentFeb 20

75,315 sh · +7.4% own

SSELL$3.2M

Keeton Simon · Group President,…Feb 17

44,263 sh @ $71.77 · -18.2% own

SSELL$328.9K

Keeton Simon · Group President,…Feb 17

4,597 sh @ $71.56 · -1.8% own

SSELL◷$3.5M

Thad Trent · Exec VP & CFOFeb 12

49,500 sh @ $70.87 · -12.7% own

SSELL◷$510.1K

Thad Trent · Exec VP & CFOFeb 12

7,000 sh @ $72.88 · -1.8% own

SSELL◷$161.5K

Thad Trent · Exec VP & CFOFeb 12

2,200 sh @ $73.39 · -0.5% own

SSELL◷$93.2K

Thad Trent · Exec VP & CFOFeb 12

1,300 sh @ $71.70 · -0.3% own

SSELL$1.5M

El-Khoury Hassane · CEO & PresidentFeb 12

19,900 sh @ $73.02 · -1.9% own

SSELL$7.4K

El-Khoury Hassane · CEO & PresidentFeb 12

100 sh @ $73.56 · <0.1% own

GGIFT—

Kiddoo Bruce E · DirectorFeb 12

3,570 sh · -17.2% own

FTAX◷$452.1K

Thad Trent · Exec VP & CFOFeb 10

6,709 sh @ $67.38 · -1.7% own

FTAX$339.1K

Keeton Simon · Group President,…Feb 10

5,032 sh @ $67.38 · -2.0% own

FTAX$417.1K

Gopalswamy Sudhir · Group President,…Feb 10

6,191 sh @ $67.38 · -3.7% own

FTAX$1.4M

El-Khoury Hassane · CEO & PresidentFeb 10

20,762 sh @ $67.38 · -2.0% own

FTAX$800K

Thad Trent · Exec VP & CFOFeb 6

12,270 sh @ $65.20 · -2.9% own

FTAX$601.9K

Keeton Simon · Group President,…Feb 6

9,232 sh @ $65.20 · -3.5% own

FTAX$393.9K

Gopalswamy Sudhir · Group President,…Feb 6

6,041 sh @ $65.20 · -3.5% own

FTAX$2.2M

El-Khoury Hassane · CEO & PresidentFeb 6

34,460 sh @ $65.20 · -3.2% own

AGRANT—

Thad Trent · Exec VP & CFOFeb 5

3,441 sh · +0.8% own

AGRANT—

Thad Trent · Exec VP & CFOFeb 5

4,371 sh · +1.1% own

AGRANT—

Thad Trent · Exec VP & CFOFeb 5

31,050 sh · +8.2% own

AGRANT—

Keeton Simon · Group President,…Feb 5

2,581 sh · +1.0% own

AGRANT—

Keeton Simon · Group President,…Feb 5

3,279 sh · +1.3% own

AGRANT—

Keeton Simon · Group President,…Feb 5

23,287 sh · +10.0% own

AGRANT—

Gopalswamy Sudhir · Group President,…Feb 5

401 sh · +0.2% own

AGRANT—

Gopalswamy Sudhir · Group President,…Feb 5

1,239 sh · +0.7% own

AGRANT—

Gopalswamy Sudhir · Group President,…Feb 5

2,581 sh · +1.5% own

AGRANT—

Gopalswamy Sudhir · Group President,…Feb 5

23,287 sh · +16.2% own

AGRANT—

El-Khoury Hassane · CEO & PresidentFeb 5

9,604 sh · +0.9% own

AGRANT—

El-Khoury Hassane · CEO & PresidentFeb 5

12,202 sh · +1.1% own

AGRANT—

El-Khoury Hassane · CEO & PresidentFeb 5

90,966 sh · +9.3% own

AGRANT$10.4K

Mascarenas Paul Anthony · DirectorDec 19, 2025

189 sh @ $55.21 · +0.3% own

SSELL$1.2M

Keeton Simon · Group President,…Dec 4, 2025

21,000 sh @ $55.72 · -8.3% own

SSELL$1.1M

Thad Trent · Exec VP & CFODec 3, 2025

20,000 sh @ $55.05 · -5.0% own

AGRANT$10.4K

Mascarenas Paul Anthony · DirectorOct 3, 2025

212 sh @ $49.27 · +0.4% own

SSELL$768.3K

El-Khoury Hassane · CEO & PresidentAug 13, 2025

15,000 sh @ $51.22 · -1.5% own

AGRANT$10.5K

Mascarenas Paul Anthony · DirectorJul 3, 2025

185 sh @ $56.60 · +0.3% own

SSELL◷$274.8K

Campbell Alan · DirectorJun 12, 2025

5,371 sh @ $51.16 · -6.0% own

FTAX$19.4K

Gopalswamy Sudhir · Group President,…May 26, 2025

470 sh @ $41.27 · -0.3% own

AGRANT—

Yan Christine Y · DirectorMay 15, 2025

5,054 sh · +12.1% own

AGRANT—

Waters Gregory L · DirectorMay 15, 2025

5,054 sh · +28.9% own

AGRANT—

Mascarenas Paul Anthony · DirectorMay 15, 2025

5,054 sh · +10.2% own

AGRANT—

Kiddoo Bruce E · DirectorMay 15, 2025

5,054 sh · +32.1% own

AGRANT—

Deitrich Thomas · DirectorMay 15, 2025

5,054 sh · +26.6% own

AGRANT—

Campbell Alan · DirectorMay 15, 2025

5,054 sh · +5.9% own

AGRANT—

Carter Susan K · DirectorMay 15, 2025

5,054 sh · +27.2% own

Filing record

How quickly insiders here report their trades. Section 16 allows two business days from the transaction.

All 38 filings we hold were filed within the two-business-day deadline.

Counted in business days from the transaction date, or the deemed execution date where the filing reports one, excluding weekends and federal holidays. How this is measured · All late filings

Insiders at this company

Everyone who has filed a Form 4 for this issuer.

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