ON Semiconductor
ON · NASDAQ
Who owns ON
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 49.1% of ON’s shares.
- Fidelity Management & Research Company LLC14.0%
- BlackRock Institutional Trust Company, N.A.7.8%
- Vanguard Capital Management, LLC6.6%
- Vanguard Portfolio Management, LLC5.0%
- Next 6 largest institutions15.8%
- All other shareholders50.9%
| Holder | Shares | % of shares |
|---|---|---|
| Fidelity Management & Research Company LLC | 54.32M | 13.96% |
| BlackRock Institutional Trust Company, N.A. | 30.38M | 7.81% |
| Vanguard Capital Management, LLC | 25.62M | 6.58% |
| Vanguard Portfolio Management, LLC | 19.64M | 5.05% |
| State Street Investment Management (US) | 18.56M | 4.77% |
| Janus Henderson Investors | 13.43M | 3.45% |
| Geode Capital Management, L.L.C. | 10.84M | 2.78% |
| Norges Bank Investment Management (NBIM) | 7.86M | 2.02% |
| Columbia Threadneedle Investments (US) | 5.39M | 1.38% |
| JP Morgan Asset Management | 5.26M | 1.35% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| Fidelity Select Semiconductors Portfolio | 22.95M | 5.90% |
| Fidelity Select Technology Portfolio | 16.28M | 4.18% |
| Vanguard Total Stock Market Index Fund | 12.48M | 3.21% |
| Vanguard 500 Index Fund | 10.29M | 2.64% |
| iShares Semiconductor ETF | 9.13M | 2.35% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders sold $7.04M (3 trades) of ON on the open market, with no buys.
| Insider | Type | Shares | Value |
|---|---|---|---|
| MASCARENAS PAUL ANTHONY | Award | 126 | $10.70K |
| GOPALSWAMY SUDHIR | Sale | 15.58K | $1.25M |
| MASCARENAS PAUL ANTHONY | Award | 116 | $10.58K |
| GOPALSWAMY SUDHIR | Tax withholding | 470 | $59.69K |
| Deitrich Thomas | Award | 1.99K | — |
| WATERS GREGORY L | Award | 1.99K | — |
| CARTER SUSAN K | Award | 1.99K | — |
| Yan Christine Y | Award | 1.99K | — |
| KIDDOO BRUCE E | Award | 1.99K | — |
| MASCARENAS PAUL ANTHONY | Award | 1.99K | — |
Congressional trades
Disclosed by members of Congress over the last 12 months
| Member | Type | Amount | Traded |
|---|---|---|---|
| Gilbert CisnerosHouse | Purchase | $15K–$50K | Sep 28, 2026 |
Short interest
Settled Sep 30, 2026
- Shares short
- 30.00M
- Days to cover
- 2.44
- % of shares outstanding
- 7.71%
- Average daily volume
- 12.27M
- Change since last report
- +1.5%
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