Monitor for any future conversion to a Schedule 13D, which would signal a shift from passive to activist intent. For now, this is a routine administrative filing with no immediate trading implications.
Price Chart
Executive Summary
FMR LLC (Fidelity) filed an amended Schedule 13G disclosing beneficial ownership of 31,915,449.72 shares of ON Semiconductor Corp common stock as of September 30, 2026, representing 8.2% of shares outstanding. This is a routine passive stake update with no change in investment intent, and the filing does not provide a comparison to prior stake levels.
Key Financial Metrics
Key Facts
- FMR LLC (Fidelity) reports beneficial ownership of 31,915,449.72 shares of ON Semiconductor common stock.
- The stake represents 8.2% of outstanding shares as of September 30, 2026.
- Fidelity Management & Research Company LLC is the entity that beneficially owns 5% or more of the class.
- The filing is a passive investor update under Rule 13d-1(b) — no activist intent is indicated.
- The filing was signed on October 6, 2026, and covers ownership as of September 30, 2026.
Financial Impact
No financial impact — routine passive stake disclosure with no change in investment strategy or material new information.
Risk Factors
- No material risks identified — this is a standard passive ownership update.
Investment Themes
Documents Analyzed
This report is based on 4 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| SC 13G/A Filing (Primary) | 0000315066-26-002346 |
| Document: 0000315066-26-002346-index-headers.html | 0000315066-26-002346 |
| Document: 0000315066-26-002346-index.html | 0000315066-26-002346 |
| Document: 0000315066-26-002346.txt | 0000315066-26-002346 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 23, 2026 4d ago | Institutional Cluster | $72.25 | awaiting T+5 | — | $78.73 (+8.97%) |
Oct 15, 2026 11d ago | Press Release | $72.02 | awaiting T+5 | — | $78.73 (+9.32%) |
Oct 7, 2026 20d ago | SC 13G/A | $82.51 $73.36 | ▼ −11.09% | ▼ −10.11% | $78.73 (−4.58%) |
Oct 1, 2026 25d ago | DEFA14A | $84.89 $77.53 | ▼ −8.67% | ▼ −9.83% | $78.73 (−7.26%) |
Oct 1, 2026 25d ago | 8-K | $84.89 $77.53 | ▼ −8.67% | ▼ −9.83% | $78.73 (−7.26%) |
Oct 1, 2026 25d ago | Press Release | $84.89 $77.53 | ▼ −8.67% | ▼ −9.83% | $78.73 (−7.26%) |
Aug 21, 2026 9w ago | S-4 | $74.21 $72.61 | ▼ −2.16% | ▼ −2.63% | $78.73 (+6.09%) |
Aug 13, 2026 10w ago | 425 | $81.56 $74.71 | ▼ −8.40% | ▼ −6.43% | $78.73 (−3.47%) |
Aug 13, 2026 10w ago | 8-K | $81.56 $74.71 | ▼ −8.40% | ▼ −6.43% | $78.73 (−3.47%) |
Aug 3, 2026 12w ago | 8-K | $80.78 $81.11 | ▲ +0.41% | ▲ +0.51% | $78.73 (−2.54%) |
US Market Status
Subscribe to SecBot
Get Real-Time SEC Filing Intelligence
Comprehensive SEC filing analysis delivered the moment filings hit EDGAR. Sentiment scoring, impact analysis, and actionable insights for every material event.
Create a free account Live analysis, Telegram alerts, watchlists and the MCP server for subscribers