ON Semiconductor Corporation
ON Semiconductor Corporation (ON) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · ON · as of Sep 30, 2025
Ownership Breakdown
849
Institutional Holders
▼ 11 vs Q2
$24.00B
Total Inst. Value
▲ $1.28B vs Q2
391.90M
Shares Outstanding
freeFloat 99.56%
425.52M
13F Shares Held
▼ 8.10M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
ON largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
FMR LLC semiconductors & related devices | 60.25M | 14.53% | 14.53% | $2.97T | Nov 13, 2025 | ▲ 4.44M |
VANGUARD GROUP INC semiconductors & related devices | 51.30M | 12.37% | 12.37% | $2.53T | Nov 7, 2025 | ▼ 68.8K |
BLACKROCK, INC. semiconductors & related devices | 40.19M | 9.69% | 9.69% | $1.98T | Nov 12, 2025 | ▼ 3.79M |
STATE STREET CORP semiconductors & related devices | 19.16M | 4.62% | 4.62% | $944.80B | Nov 14, 2025 | ▼ 231.2K |
JANUS HENDERSON GROUP PLC semiconductors & related devices | 15.20M | 3.67% | 3.67% | $749.65B | Nov 14, 2025 | ▼ 480.2K |
JPMORGAN CHASE & CO semiconductors & related devices | 15.12M | 3.65% | 3.65% | $745.70B | Nov 26, 2025 | ▲ 1.76M |
GEODE CAPITAL MANAGEMENT, LLC semiconductors & related devices | 11.17M | 2.70% | 2.70% | $549.56B | Nov 12, 2025 | ▼ 122.2K |
AMERIPRISE FINANCIAL INC semiconductors & related devices | 8.71M | 2.10% | 2.10% | $429.30B | Nov 14, 2025 | ▼ 3.50M |
BANK OF AMERICA CORP /DE/ semiconductors & related devices | 8.17M | 1.97% | 1.97% | $402.64B | Feb 3, 2026 | ▲ 435.0K |
INVESCO LTD. semiconductors & related devices | 7.44M | 1.79% | 1.79% | $366.84B | Nov 13, 2025 | ▲ 634.4K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
23
Increased
+23.51M shares0
New Positions
first time holders27
Decreased
−20.19M shares0
Sold Out
fully exitedNet shares change (top 50)
+3.32M
+23.51M / −20.19M
Net new holders
-4
0 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
ON insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
7
Buy transactions
4
Sell transactions
1.75
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
GOPALSWAMY SUDHIR Group President, AMG & ISG | May 26, 2026 | Tax Withhold | 470 | $127.00 | $59.7K | 173.6K | Form 4 ↗ |
Deitrich Thomas director | May 14, 2026 | Award | 1,986 | — | — | 26.1K | Form 4 ↗ |
WATERS GREGORY L director | May 14, 2026 | Award | 1,986 | — | — | 24.5K | Form 4 ↗ |
CARTER SUSAN K director | May 14, 2026 | Award | 1,986 | — | — | 25.6K | Form 4 ↗ |
Yan Christine Y director | May 14, 2026 | Award | 1,986 | — | — | 48.7K | Form 4 ↗ |
KIDDOO BRUCE E director | May 14, 2026 | Award | 1,986 | — | — | 19.2K | Form 4 ↗ |
MASCARENAS PAUL ANTHONY director | May 14, 2026 | Award | 1,986 | — | — | 57.5K | Form 4 ↗ |
Thad Trent Exec VP & CFO | Apr 23, 2026 | Sale | 30,000 | $93.00 | $2.79M | 301.2K | Form 4 ↗ |
Thad Trent Exec VP & CFO | Apr 24, 2026 | Sale | 30,000 | $100.00 | $3.00M | 271.2K | Form 4 ↗ |
Thad Trent Exec VP & CFO | Apr 16, 2026 | Sale | 30,000 | $80.00 | $2.40M | 331.2K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
ON Semiconductor Corporation (ON) is primarily owned by institutional investors, who hold approximately 100.0% of total shares outstanding. Company insiders own approximately 0.44%, while retail and public investors account for the remaining 0.00%.
The largest institutional shareholder of ON Semiconductor Corporation is FMR LLC, holding approximately 60.25 million shares — equal to 14.53% of outstanding shares — as of September 30, 2025.
A total of 849 institutional investors currently hold ON stock, with a combined institutional value of approximately $24.00 billion as of the most recent 13F filing period.
Frequently asked questions
ON ownershipON Semiconductor Corporation (ON) is primarily owned by institutional investors, who hold approximately 100.0% of shares. The largest shareholder is FMR LLC with a 14.53% stake. Company insiders hold 0.44%. Data sourced from SEC Form 13F as of September 30, 2025.