On Semiconductor ON Insider Ownership

NASDAQ ON
$76.14 +5.97 (+8.51%)
At close: Sep 11, 2026 · 4:00 PM EDT

Insider Holdings by Owner

2.33Mn Shares

Insider Ownership Statistics

as of 31 Dec, 2025
Insider Ownership
0.0062%
▼-0.134% pp QoQ
Shares Held by Insiders
25.00K
filed for Dec 2025
▼-95.69% QoQ
Shares Outstanding
411.80Mn
411,800,000 shares
Direct Holdings
25.00K
Indirect: 0
Net Shares Traded (QoQ)
-555.24K
net selling in Dec 2025
Insiders Holding Shares
17
with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding
Latest —
Average ownership —
Peak ownership —

Shares Purchased/Sold by Insiders

Bought Sold
Latest quarter —
Net over range —
Buying quarters —

Insider Ownership Summary

Quarter ending 31 Dec, 2025

ON's three largest insider shareholders as of September 12, 2026 are Hassane El-Khoury (Ceo President, 1.05Mn shares), Simon Keeton (Group President, Psg, 214.12K shares), Atsushi Abe (Director, 176.89K shares).

Form 4 Holdings

Insiders Holding ON

Insiders 17
Shares held 2.33Mn
Of outstanding 0.567%
# Insider Position Direct Indirect Total Share of Insiders Last Filed
1 Hassane El-Khoury Ceo President 1,054,123 0 1,054,123 45.2% 24 Feb, 2026
2 Simon Keeton Group President, Psg 214,123 0 214,123 9.2% 24 Feb, 2026
3 Atsushi Abe Director 176,886 0 176,886 7.6% 17 May, 2024
4 Sudhir Gopalswamy Group President, Amg Isg 173,588 0 173,588 7.4% 27 May, 2026
5 Vince Craig Hopkin Evp Gm, Asg 169,073 0 169,073 7.2% 12 May, 2022
6 Ross Jatou Svp Gm, Isg 112,730 0 112,730 4.8% 22 Feb, 2024
7 Alan Campbell Director 84,689 0 84,689 3.6% 12 Jun, 2025
8 Robert Tong Svp Gm, Asg 60,143 0 60,143 2.6% 06 Mar, 2023
9 Paul Anthony Mascarenas Director 57,590 0 57,590 2.5% 02 Jul, 2026
10 Gilles Delfassy Director 55,667 0 55,667 2.4% 27 May, 2022
11 Christine Y Yan Director 48,655 0 48,655 2.1% 18 May, 2026
12 Bernard Raymond Jr Colpitts Chief Accounting Officer 31,045 0 31,045 1.3% 13 Sep, 2023
13 Susan K Carter Director 25,638 0 25,638 1.1% 18 May, 2026
14 Gregory L Waters Director 24,524 0 24,524 1.1% 18 May, 2026
15 Thomas Deitrich Director 24,074 0 24,074 1.0% 16 May, 2025
16 Bruce E Kiddoo Director 17,230 0 17,230 0.7% 13 Feb, 2026
17 Christina Lampe-Onnerud Director 4,684 0 4,684 0.2% 17 May, 2024

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

5,372 Insider Transactions

Source SEC Form 4
Latest quarter Dec 2025
Download Data
Date Insider Position Transaction Shares Price Value Shares Held After Ownership
02 Jul, 2026 Paul Anthony Mascarenas Director Acquired A 116 $91.22 $10.58K 57,590 Direct
26 May, 2026 Sudhir Gopalswamy Group President, Amg Isg Disposed F 470 $127.00 $59.69K 173,588 Direct
14 May, 2026 Paul Anthony Mascarenas Director Acquired A 1,986 $0.00 $0 57,474 Direct
14 May, 2026 Gregory L Waters Director Acquired A 1,986 $0.00 $0 24,524 Direct
14 May, 2026 Susan K Carter Director Acquired A 1,986 $0.00 $0 25,638 Direct
14 May, 2026 Christine Y Yan Director Acquired A 1,986 $0.00 $0 48,655 Direct
03 Apr, 2026 Paul Anthony Mascarenas Director Acquired A 168 $62.19 $10.45K 55,488 Direct
13 Mar, 2026 Sudhir Gopalswamy Group President, Amg Isg Disposed S 6,114 $58.67 $358.71K 173,943 Direct
20 Feb, 2026 Hassane El-Khoury Ceo President Acquired A 75,315 $0.00 $0 1,090,925 Direct
20 Feb, 2026 Sudhir Gopalswamy Group President, Amg Isg Acquired A 31,834 $0.00 $0 191,095 Direct
20 Feb, 2026 Simon Keeton Group President, Psg Acquired A 26,046 $0.00 $0 225,041 Direct
21 Feb, 2026 Hassane El-Khoury Ceo President Disposed F 36,802 $69.11 $2.54Mn 1,054,123 Direct
20 Feb, 2026 Sudhir Gopalswamy Group President, Amg Isg Disposed F 1,455 $69.11 $100.56K 189,640 Direct
20 Feb, 2026 Simon Keeton Group President, Psg Disposed F 3,130 $69.11 $216.31K 221,911 Direct
21 Feb, 2026 Simon Keeton Group President, Psg Disposed F 7,788 $69.11 $538.23K 214,123 Direct
21 Feb, 2026 Sudhir Gopalswamy Group President, Amg Isg Disposed F 9,583 $69.11 $662.28K 180,057 Direct
17 Feb, 2026 Simon Keeton Group President, Psg Disposed S 4,597 $71.56 $328.94K 243,258 Direct
17 Feb, 2026 Simon Keeton Group President, Psg Disposed S 44,263 $71.77 $3.18Mn 198,995 Direct
12 Feb, 2026 Bruce E Kiddoo Director Disposed G 3,570 $0.00 $0 17,230 Direct
10 Feb, 2026 Sudhir Gopalswamy Group President, Amg Isg Disposed F 6,191 $67.38 $417.15K 159,261 Direct