ON Semiconductor Corporation (ON) ownership: insiders 0% · institutions 108% (13F 2026-03-31). Insider activity, 90 days: 0 sales, 0 open-market buys. 10 recent congressional STOCK Act disclosures. SEC EDGAR first-party data.
| Holder | Shares | Market Value | % Outstanding | Reported |
|---|---|---|---|---|
| FMR (Fidelity) | 58158341.00 | $3.60B | 14.9% | 2026-03-31 |
| Vanguard | 49750044.00 | $3.08B | 12.8% | 2026-03-31 |
| BlackRock | 39911681.00 | $2.47B | 10.3% | 2026-03-31 |
| State Street | 18307578.00 | $1.13B | 4.7% | 2026-03-31 |
| JPMorgan | 16107943.00 | $896.57M | 4.1% | 2026-03-31 |
| Janus Henderson | 13700884.00 | $848.39M | 3.5% | 2026-03-31 |
| Geode Capital Management | 10763837.00 | $665.50M | 2.8% | 2026-03-31 |
| Slate Path Capital LP | 7798800.00 | $482.90M | 2.0% | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-07-02 | |
| Buy | null | 2026-05-26 | |
| Sell | null | 2026-05-26 | |
| Sell | null | 2026-05-14 | |
| Sell | null | 2026-05-14 | |
| Sell | null | 2026-05-14 | |
| Sell | null | 2026-05-14 | |
| Sell | null | 2026-05-14 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.