Synopsys Inc (SNPS) insider trading
Recent insider transactions reported to the SEC on Form 4 — directors and officers buying or selling their own company’s stock. Sourced directly from public SEC filings, latest filed Sep 16, 2026.
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- Filings shown
- 9
- Open-market buys
- 0
- Open-market sells
- 4
Counts cover the 9 most recent Form 4 filings Tradune holds for SNPS (filed Aug 17 – Sep 16, 2026). No completed check of SNPS's Form 4 list on SEC EDGAR is on record yet; the latest SNPS filing Tradune holds was filed Sep 16, 2026. This is not guaranteed to be the complete record — see SNPS's full Form 4 filing history on SEC EDGAR.
Open-market activity, last 90 days
Purchases (Form 4 code P) and sales (code S) on the 9 filings Tradune holds for SNPS filed Aug 17 – Sep 16, 2026. Grants, exercises, tax withholding and the other Form 4 transaction codes are left out.
4 open-market sales by Rule 10b5-1 checkbox
- On filings with the 10b5-1 box checked
- 4 sales· 89,245 sh
- checkbox disclosed
- On filings with the box not checked
- 0 sales· 0 sh
- not proof that no plan exists
- Not comparable
- 0 sales· 0 sh
- filed before Apr 1, 2023, or no checkbox value in the filing data
Counts are Form 4 lines as filed. The checkbox is one per filing, so every sale on a filing with the box checked is counted there even if only some of its transactions were under a plan; it records what the filer disclosed, and the three categories are not a judgement about why a sale was made.
| Insider | Buys | Sells | Shares bought | Shares sold | Value |
|---|---|---|---|---|---|
| Aart De GeusEXECUTIVE CHAIR | 0 | 3 | — | 74,641 | −$32,518,294 |
| Sassine GhaziPRESIDENT AND CEO | 0 | 1 | — | 14,604 | −$5,474,683 |
Value = shares × the price reported on each Form 4 (+ purchases, − sales); every open-market line in this window disclosed a price.
Summarises ~90 days of public SEC Form 4 activity — more distinct buyers, officer involvement and net buying score higher. A description of filing activity, not a rating or buy signal. How this score is computed →
How to read this: an open-market purchase (Form 4 code P) is a buy at the market price with the insider’s own money, as opposed to a grant, award or option exercise; an open-market sale is code S. When two or more distinct insiders report open-market purchases in the same 90-day window, this site labels that a cluster — a definition, not a forecast; see insider cluster buying. “Held after” is Form 4 Table I column 5; “Change” = shares ÷ holdings before the trade (held after − shares for an acquisition, held after + shares for a disposition).
Insider Buying at SNPS
No open-market insider purchases (Form 4 code P) were reported for SNPS in the trailing 90 days. The filings below may include other transaction types — sales, grants, option exercises, and tax withholding — shown for completeness; they are not open-market purchases.
Recent Form 4 filings
Source: SEC EDGAR Form 4 · transaction codes explained
| Transaction | Shares | Price | Held after | Change† | Date |
|---|---|---|---|---|---|
| Option exercise | 14,604 | $135.88 | 91,469 | +19% | Sep 15, 2026 |
| Option exercise Non-Qualified Stock Option (right to buy) | 14,604 | — | — | — | Sep 15, 2026 |
| Open-market sale 10b5-1 box checked | 14,604 | $374.88 | 76,865 | −16% | Sep 15, 2026 |
† change in this filer’s own reported holding line (Form 4 Table I, col. 5), not of total company ownership; small prior holdings produce large percentages, so under 100 shares the prior holding is shown instead.
“10b5-1 box checked” = the filer checked the Form 4 box stating that a transaction on the filing was made under a plan intended to satisfy Rule 10b5-1(c); “10b5-1 box not checked” = the box was left blank, which does not prove that no plan exists. The box applies to Form 4s filed from April 1, 2023; older filings, and boxes we could not read, carry no tag. What the 10b5-1 box means.
| Transaction | Shares | Price | Held after | Change† | Date |
|---|---|---|---|---|---|
| Option exercise | 2,283 | — | 18,671 | +14% | Sep 11, 2026 |
| Tax withholding | 993 | $397.38 | 17,678 | −5.3% | Sep 11, 2026 |
| Option exercise Restricted Stock Units | 2,283 | — | — | — | Sep 11, 2026 |
| Transaction | Shares | Price | Held after | Change† | Date |
|---|---|---|---|---|---|
| Tax withholding | 304 | $414.82 | 16,388 | −1.8% | Sep 1, 2026 |
| Option exercise Restricted Stock Units | 699 | — | — | — | Sep 1, 2026 |
| Option exercise | 699 | — | 16,692 | +4.4% | Sep 1, 2026 |
| Transaction | Shares | Price | Held after | Change† | Date |
|---|---|---|---|---|---|
| Option exercise Non-Qualified Stock Option (right to buy) | 24,641 | — | — | — | Sep 1, 2026 |
| Open-market sale 10b5-1 box checked | 24,641 | $419.44 | 120,443 | −17% | Sep 1, 2026 |
| Option exercise | 24,641 | $135.88 | 145,084 | +20% | Sep 1, 2026 |
| Option exercise | 25,000 | $135.88 | 145,421 | +21% | Aug 31, 2026 |
| Open-market sale 10b5-1 box checked | 25,000 | $441.76 | 120,421 | −17% | Aug 31, 2026 |
| Other acquisition / disposition | 22 | $360.96 | 120,443 | +0.0% | Aug 31, 2026 |
| Option exercise Non-Qualified Stock Option (right to buy) | 25,000 | — | — | — | Aug 31, 2026 |
| Transaction | Shares | Price | Held after | Change† | Date |
|---|---|---|---|---|---|
| Other acquisition / disposition | 27 | $360.96 | 76,865 | +0.0% | Aug 31, 2026 |
| Transaction | Shares | Price | Held after | Change† | Date |
|---|---|---|---|---|---|
| Other acquisition / disposition | 27 | $360.96 | 22,717 | +0.1% | Aug 31, 2026 |
| Transaction | Shares | Price | Held after | Change† | Date |
|---|---|---|---|---|---|
| Other acquisition / disposition | 27 | $360.96 | 2,612 | +1.0% | Aug 31, 2026 |
| Transaction | Shares | Price | Held after | Change† | Date |
|---|---|---|---|---|---|
| Option exercise | 25,000 | $135.88 | 145,421 | +21% | Aug 28, 2026 |
| Open-market sale 10b5-1 box checked | 25,000 | $445.55 | 120,421 | −17% | Aug 28, 2026 |
| Option exercise Non-Qualified Stock Option (right to buy) | 25,000 | — | — | — | Aug 28, 2026 |
Insider filings reported around the same time
Other companies whose most recent Form 4 was filed closest to SNPS's (Sep 16, 2026).
Frequently asked about SNPS insider activity
How many insiders bought SNPS stock in the last 90 days?
No open-market purchases (Form 4 code P) of SNPS shares were reported by Synopsys Inc insiders in the trailing 90 days. The 9 filings shown on this page cover other transaction types — sales, grants, option exercises, and tax withholding.
Who filed the most recent Form 4 for SNPS?
The most recent Form 4 on this page was filed by Sassine Ghazi (PRESIDENT AND CEO) on Sep 16, 2026, reporting 3 transactions. The original document is linked from the filing list above on SEC EDGAR. Amended filings (Form 4/A) may later revise reported figures.
What was the largest open-market SNPS insider sale shown?
The largest open-market sale among the filings shown was 25,000 SNPS shares at $445.55 (about $11,138,755) by Aart De Geus (EXECUTIVE CHAIR) on Aug 28, 2026. Value is shares × the price reported on the Form 4; that Form 4 has the Rule 10b5-1 box checked.
New to Form 4s? The transaction codes, the 90-day window and the 0–100 score are defined on the insider-activity score methodology page.
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Track SNPS insider filings free →This score summarizes SEC Form 4 filing activity over the trailing 90 days. It is descriptive, not predictive — not a rating, recommendation, or investment advice. Data: SEC EDGAR (public domain), as filed; amendments may revise figures. Tradune is not a registered investment adviser.
Data as filed; amended filings (Form 4/A) may revise figures. Sales may occur under prearranged Rule 10b5-1 trading plans.