onsemi · ownership
Who owns onsemi?
FMR LLC is the largest 13F holder: 14.0% of 13F-reported shares calc.
996 institutions report 403.8M onsemi shares in Form 13F, as of quarter end Jun 30, 2026; −2.9M shares vs Mar 31, 2026.
- FMR LLC14.0%56.7M shares · −1.5M vs prior quarter (down) · 13F filed Aug 13, 2026
- BlackRock, Inc.10.1%41.0M shares · +1.1M vs prior quarter (up) · 13F filed Aug 7, 2026
- VANGUARD CAPITAL MANAGEMENT LLC6.3%25.6M shares · −17K vs prior quarter (down) · 13F filed Aug 13, 2026
- VANGUARD PORTFOLIO MANAGEMENT LLC4.9%19.6M shares · −423K vs prior quarter (down) · 13F filed Aug 13, 2026
- STATE STREET CORP4.6%18.6M shares · +250K vs prior quarter (up) · 13F filed Aug 7, 2026
- Jupiter Topco LLC3.3%13.4M shares · no prior 13F · 13F filed Aug 14, 2026
- GEODE CAPITAL MANAGEMENT, LLC2.7%10.8M shares · +73K vs prior quarter (up) · 13F filed Aug 12, 2026
- JPMORGAN CHASE & CO2.5%10.1M shares · −6.0M vs prior quarter (down) · 13F filed Aug 12, 2026
- GOLDMAN SACHS GROUP INC2.0%7.9M shares · +1.2M vs prior quarter (up) · 13F filed Aug 14, 2026
- NORGES BANK1.9%7.9M shares · +7.9M vs prior quarter (new position) · 13F filed Aug 12, 2026
- BANK OF AMERICA CORP /DE/1.6%6.3M shares · +1.0M vs prior quarter (up) · 13F filed Aug 14, 2026
- MORGAN STANLEY1.5%5.9M shares · −190K vs prior quarter (down) · 13F filed Aug 13, 2026
- AMERIPRISE FINANCIAL INC1.4%5.6M shares · −821K vs prior quarter (down) · 13F filed Aug 14, 2026
- Assenagon Asset Management S.A.1.4%5.6M shares · +4.0M vs prior quarter (up) · 13F filed Aug 21, 2026
- VAN ECK ASSOCIATES CORP1.3%5.1M shares · +732K vs prior quarter (up) · 13F filed Aug 14, 2026
- Amundi1.3%5.1M shares · +203K vs prior quarter (up) · 13F filed Aug 26, 2026
- Invesco Ltd.1.2%4.9M shares · −1.1M vs prior quarter (down) · 13F filed Aug 14, 2026
- Jericho Capital Asset Management L.P.1.2%4.9M shares · +4.9M vs prior quarter (new position) · 13F filed Aug 14, 2026
- Pictet Asset Management Holding SA1.0%4.2M shares · −361K vs prior quarter (down) · 13F filed Jul 30, 2026
- TWO SIGMA INVESTMENTS, LP1.0%4.1M shares · −385K vs prior quarter (down) · 13F filed Aug 14, 2026
Share of 13F-reported shares, not of shares outstanding. 13F covers managers with over $100M in US equities; it is not a full shareholder list.
Method and sources
Source: SEC Form 13F data sets (bulk). Each row links to the holder’s own 13F-HR filing. Holder names exactly as filed; one group can file under several names and CIKs (for example two Vanguard entities), and they are listed separately, as filed.
% = the holder’s shares ÷ all shares reported in 13F filings for this company and quarter (calculated by Hollsteen). This is not a share of shares outstanding. Change = shares vs the same filer’s 13F for the prior quarter (Mar 31, 2026).
Erroneous filings and rows are handled by a fixed rule set (restatements replace originals; non-equity rows and implausible rows excluded): 35 erroneous filings excluded or replaced this quarter. No market values are shown.
SEC filings only. No price or market data.
Who holds more than 5%?
3 current Schedule 13D/13G holders
Schedule 13D/13G filings (10) ›
- FMR LLC 8.2%
13G/A filed Oct 7, 2026 · event date Sep 30, 2026 · 12 earlier filings
- VANGUARD CAPITAL MANAGEMENT LLC 7.5%
13G filed Apr 30, 2026 · event date Mar 31, 2026
- VANGUARD PORTFOLIO MANAGEMENT LLC 5.1%
13G filed Apr 29, 2026 · event date Mar 31, 2026
- VANGUARD GROUP INC 0%
below 5% latest filing reports under 5% · 13G/A filed Mar 27, 2026 · event date Mar 13, 2026 · 10 earlier filings
- STATE STREET CORP 4.6%
below 5% latest filing reports under 5% · 13G filed Aug 11, 2025 · event date Jun 30, 2025 · 1 earlier filing
- BlackRock Inc. 10%
stale filed Sep 10, 2024: older than 18 months, not a current holding · 13G/A filed Sep 10, 2024 · 7 earlier filings
- SPRING CREEK CAPITAL LLC 0%
stale filed Feb 12, 2021, as of Dec 31, 2020: older than 18 months, not a current holding · 13G/A filed Feb 12, 2021 · 1 earlier filing
- JANUS HENDERSON GROUP PLC 4.9%
stale filed Dec 10, 2020: older than 18 months, not a current holding · 13G/A filed Dec 10, 2020 · 4 earlier filings
- Capital International Investors 2.2%
stale filed Feb 14, 2020, as of Dec 31, 2019: older than 18 months, not a current holding · 13G/A filed Feb 14, 2020 · 2 earlier filings
- JANUS CAPITAL MANAGEMENT LLC 0%
stale filed Feb 13, 2018: older than 18 months, not a current holding · 13G/A filed Feb 13, 2018
Method and sources
Schedule 13D (active) and 13G (passive) are filed by holders of more than 5% of a class. The percentage is the holder’s own cover-page “percent of class”. A filing older than 18 months (filed before 2025-04-17) is marked stale and is never shown as a current holding. Data as of Oct 14, 2026.
SEC filings only.
Are insiders buying or selling?
0 open-market purchases, 15 sales in 12 months
Form 4, Oct 14, 2025 – Oct 14, 2026 · 0 shares bought, 281,552 shares sold (net −282K) · as of Oct 14, 2026
Latest 25 of 116 Form 4 transactions ›
| Date | Insider (as filed) | Transaction | Shares | Held after |
|---|---|---|---|---|
| Oct 2, 2026 | MASCARENAS PAUL ANTHONY · Director | Grant or award | 126 acquired | 57,716 |
| Oct 1, 2026 | GOPALSWAMY SUDHIR · Group President, AMG & ISG | Open-market sale · 10b5-1 | 15,578 disposed | 158,177 |
| Jul 2, 2026 | MASCARENAS PAUL ANTHONY · Director | Grant or award | 116 acquired | 57,590 |
| May 26, 2026 | GOPALSWAMY SUDHIR · Group President, AMG & ISG | Tax withholding | 470 disposed | 173,588 |
| May 14, 2026 | Deitrich Thomas · Director | Grant or award | 1,986 acquired | 26,060 |
| May 14, 2026 | WATERS GREGORY L · Director | Grant or award | 1,986 acquired | 24,524 |
| May 14, 2026 | CARTER SUSAN K · Director | Grant or award | 1,986 acquired | 25,638 |
| May 14, 2026 | Yan Christine Y · Director | Grant or award | 1,986 acquired | 48,655 |
| May 14, 2026 | KIDDOO BRUCE E · Director | Grant or award | 1,986 acquired | 19,216 |
| May 14, 2026 | MASCARENAS PAUL ANTHONY · Director | Grant or award | 1,986 acquired | 57,474 |
| Apr 24, 2026 | Thad Trent · Exec VP & CFO | Open-market sale · 10b5-1 | 30,000 disposed | 271,194 |
| Apr 23, 2026 | Thad Trent · Exec VP & CFO | Open-market sale · 10b5-1 | 30,000 disposed | 301,194 |
| Apr 16, 2026 | Thad Trent · Exec VP & CFO | Open-market sale · 10b5-1 | 30,000 disposed | 331,194 |
| Apr 3, 2026 | MASCARENAS PAUL ANTHONY · Director | Grant or award | 168 acquired | 55,488 |
| Mar 13, 2026 | GOPALSWAMY SUDHIR · Group President, AMG & ISG | Open-market sale | 6,114 disposed | 173,943 |
| Feb 21, 2026 | El-Khoury Hassane · Director; CEO & President | Tax withholding | 36,802 disposed | 1,054,123 |
| Feb 21, 2026 | GOPALSWAMY SUDHIR · Group President, AMG & ISG | Tax withholding | 9,583 disposed | 180,057 |
| Feb 21, 2026 | Thad Trent · Exec VP & CFO | Tax withholding | 10,383 disposed | 361,079 |
| Feb 21, 2026 | KEETON SIMON · Group President, PSG | Tax withholding | 7,788 disposed | 214,123 |
| Feb 20, 2026 | El-Khoury Hassane · Director; CEO & President | Grant or award | 75,315 acquired | 1,090,925 |
| Feb 20, 2026 | GOPALSWAMY SUDHIR · Group President, AMG & ISG | Grant or award | 31,834 acquired | 191,095 |
| Feb 20, 2026 | GOPALSWAMY SUDHIR · Group President, AMG & ISG | Tax withholding | 1,455 disposed | 189,640 |
| Feb 20, 2026 | Thad Trent · Exec VP & CFO | Grant or award | 36,175 acquired | 375,635 |
| Feb 20, 2026 | Thad Trent · Exec VP & CFO | Tax withholding | 4,173 disposed | 371,462 |
| Feb 20, 2026 | KEETON SIMON · Group President, PSG | Grant or award | 26,046 acquired | 225,041 |
Method and sources
Form 4 filings (not 4/A), table I. Open market = transaction codes P (purchase) and S (sale); grants, option exercises, tax withholding and gifts are listed but not counted as buys or sells. Shares and share counts only, as filed; Hollsteen shows no per-share prices. Data is an export, as of Oct 14, 2026, not live.
SEC filings only.