ON Semiconductor Corporation
Ownership
Ownership Structure
Who owns ON Semiconductor Corporation (ON)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 99.6% of the shares are freely tradable; institutional investors hold 109.0%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| FMR Inc | 14.56 | 56,679,393 | -2.5 | 06/30/2026 |
| BlackRock Inc | 10.53 | 40,980,739 | +2.7 | 06/30/2026 |
| Vanguard Capital Management, LLC | 6.58 | 25,616,396 | -0.1 | 06/30/2026 |
| Vanguard Portfolio Management, LLC | 5.04 | 19,639,331 | -2.1 | 06/30/2026 |
| State Street Corp | 4.77 | 18,557,255 | +1.4 | 06/30/2026 |
| HHG PLC | 3.52 | 13,700,884 | +10.9 | 03/31/2026 |
| Jupiter Topco LLC | 3.45 | 13,427,527 | +0.0 | 06/30/2026 |
| Geode Capital Management, LLC | 2.78 | 10,836,563 | +0.7 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Fidelity Select Semiconductors | 5.58 | 21,710,146 | -5.4 | 08/31/2026 |
| Vanguard MStar Total Stk Mkt Idx Invest | 3.17 | 12,359,460 | -0.8 | 09/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Gopalswamy Sudhir | Group President, AMG & ISG | 158,177 | 11,483,650 $ | Oct 1, 2026 | direct |
| Mascarenas Paul Anthony | Director | 57,716 | 4,190,182 $ | Oct 2, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Oct 2, 2026 | Mascarenas Paul Anthony | Director | Other | 126 | 84.89 | 10,696 |
| Oct 1, 2026 | Gopalswamy Sudhir | Group President, AMG & ISG | Sell | 15,578 | 80.00 | 1,246,240 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: November 3, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.