Synopsys Inc
Ownership
Ownership Structure
Who owns Synopsys Inc (SNPS)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 99.4% of the shares are freely tradable; institutional investors hold 91.3%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 8.46 | 16,203,958 | +2.1 | 06/30/2026 |
| Vanguard Capital Management, LLC | 6.53 | 12,507,020 | +0.5 | 06/30/2026 |
| State Street Corp | 4.73 | 9,073,873 | +2.0 | 06/30/2026 |
| Amvescap Plc. | 3.15 | 6,028,804 | +2.0 | 06/30/2026 |
| FMR Inc | 3.13 | 5,989,785 | -28.4 | 06/30/2026 |
| Assenagon Asset Management SA | 2.56 | 4,910,804 | +179.0 | 06/30/2026 |
| NVIDIA Corp | 2.52 | 4,821,717 | +0.0 | 06/30/2026 |
| Geode Capital Management, LLC | 2.35 | 4,510,929 | -1.2 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Vanguard MStar Total Stk Mkt Idx Invest | 3.17 | 6,082,601 | +0.0 | 09/30/2026 |
| Vanguard 500 Index Investor | 2.62 | 5,028,880 | -1.2 | 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 |
|---|---|---|---|---|---|
| De Geus Aart | EXECUTIVE CHAIR | 120,443 | 56,138,482 $ | Sep 1, 2026 | direct |
| Ghazi Sassine | PRESIDENT AND CEO | 76,865 | 35,826,777 $ | Oct 15, 2026 | direct |
| Kankanwadi Sudhindra | Deputy CFO & CAO | 22,717 | 10,588,394 $ | Oct 6, 2026 | direct |
| Lee Janet | GC & Corporate Secretary | 16,534 | 7,706,681 $ | Oct 6, 2026 | direct |
| Ellow Michael | Chief Revenue Officer | 2,612 | 1,217,453 $ | Aug 31, 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 15, 2026 | Ghazi Sassine | PRESIDENT AND CEO | Sell | 14,604 | 462.84 | 6,759,359 |
| Oct 15, 2026 | Ghazi Sassine | PRESIDENT AND CEO | Other | 14,604 | 135.88 | 1,984,392 |
| Oct 6, 2026 | Lee Janet | GC & Corporate Secretary | Sell | 560 | 502.40 | 281,341 |
| Oct 6, 2026 | Lee Janet | GC & Corporate Secretary | Sell | 584 | 502.64 | 293,542 |
| Oct 6, 2026 | Kankanwadi Sudhindra | Deputy CFO & CAO | Sell | 9,170 | 500.00 | 4,585,000 |
| Oct 6, 2026 | Kankanwadi Sudhindra | Deputy CFO & CAO | Other | 9,170 | 135.88 | 1,246,020 |
| Oct 5, 2026 | Kankanwadi Sudhindra | Deputy CFO & CAO | Sell | 3,000 | 484.78 | 1,454,340 |
| Oct 5, 2026 | Kankanwadi Sudhindra | Deputy CFO & CAO | Other | 3,000 | 135.88 | 407,640 |
| Sep 15, 2026 | Ghazi Sassine | PRESIDENT AND CEO | Sell | 14,604 | 374.88 | 5,474,683 |
| Sep 15, 2026 | Ghazi Sassine | PRESIDENT AND CEO | Other | 14,604 | 135.88 | 1,984,392 |
| Sep 11, 2026 | Lee Janet | GC & Corporate Secretary | Other | 993 | 397.38 | 394,598 |
| Sep 11, 2026 | Lee Janet | GC & Corporate Secretary | Other | 2,283 | 0.00 | – |
| Sep 1, 2026 | Lee Janet | GC & Corporate Secretary | Other | 304 | 414.82 | 126,105 |
| Sep 1, 2026 | Lee Janet | GC & Corporate Secretary | Other | 699 | 0.00 | – |
| Sep 1, 2026 | De Geus Aart | EXECUTIVE CHAIR | Sell | 24,641 | 419.44 | 10,335,424 |
| Sep 1, 2026 | De Geus Aart | EXECUTIVE CHAIR | Other | 24,641 | 135.88 | 3,348,219 |
| Aug 31, 2026 | Ghazi Sassine | PRESIDENT AND CEO | Other | 27 | 360.96 | 9,746 |
| Aug 31, 2026 | Kankanwadi Sudhindra | Deputy CFO & CAO | Other | 27 | 360.96 | 9,746 |
| Aug 31, 2026 | Ellow Michael | Chief Revenue Officer | Other | 27 | 360.96 | 9,746 |
| Aug 31, 2026 | De Geus Aart | EXECUTIVE CHAIR | Other | 22 | 360.96 | 7,941 |
| Aug 31, 2026 | De Geus Aart | EXECUTIVE CHAIR | Sell | 25,000 | 441.76 | 11,044,115 |
| Aug 31, 2026 | De Geus Aart | EXECUTIVE CHAIR | Other | 25,000 | 135.88 | 3,397,000 |
| Aug 28, 2026 | De Geus Aart | EXECUTIVE CHAIR | Sell | 25,000 | 445.55 | 11,138,755 |
| Aug 28, 2026 | De Geus Aart | EXECUTIVE CHAIR | Other | 25,000 | 135.88 | 3,397,000 |
| Aug 16, 2026 | Lee Janet | GC & Corporate Secretary | Other | 318 | 421.50 | 134,037 |
| Aug 16, 2026 | Lee Janet | GC & Corporate Secretary | Other | 729 | 0.00 | – |
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 2, 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.