Company · Ownership research

SYNOPSYS INC SNPS

CIK 0000883241

Form 4 transactions dated Sep 1, 2023 to Sep 25, 2026, as reported to the SEC.

Insider trading Initial holdings Institutional holders

This page lists 30 of 108 rows; the complete set is available through the API.

Insider filings on file run through 2026-09-02.

Insider purchases & sales

Purchased: $587.99K
Sold: $202.32M

Sep 1, 2023 – Sep 2, 2026
Available records · partial months are marked ·

202510 of 12 preview events

Date	Insider	Activity	Trade value (USD)	% of prior holding
2025-12-19	Glaser Shelagh CFO	Sale	$1.69M 3,657 shares sold	Unavailable Direct holding	▾
2025-09-22	Kankanwadi Sudhindra Chief Accounting Officer	Sale	$4.95M 9,873 shares sold	32.48% sold Direct holding	▾
2025-09-19	Kankanwadi Sudhindra Chief Accounting Officer	Sale	$2.89M 6,000 shares sold	22.62% sold Direct holding	▾
2025-09-11	PAINTER ROBERT G Director	Purchase	$148.90K 350 shares bought	18.03% added Direct holding	▾
2025-09-05	Glaser Shelagh CFO	Sale	$2.23M 3,655 shares sold	Unavailable Direct holding	▾
2025-09-02	Ghazi Sassine PRESIDENT AND CEO · Director	Sale	$6.69M 11,366 shares sold	13.70% sold Direct holding	▾
2025-06-18	MAHONEY RICHARD S. Chief Revenue Officer	Sale10b5-1 footnote	$4.25M 9,010 shares sold	Unavailable Direct holding	▾
2025-06-06	Glaser Shelagh CFO	Sale	$3.55M 7,310 shares sold	Unavailable Direct holding	▾
2025-06-02	Ghazi Sassine PRESIDENT AND CEO · Director	Sale	$5.20M 11,366 shares sold	13.70% sold Direct holding	▾
2025-03-06	DE GEUS AART EXECUTIVE CHAIR · Director	Sale	$6.98M 15,705 shares sold	11.86% sold Direct holding	▾

Showing 12 / 12 record groups in 2025. The complete set is available through the API.

SYNOPSYS INC · SNPS

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The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. For the year shown, this page lists 12 of 12 purchase / sale groups and 30 of 108 other groups; the totals and the monthly series cover the whole window.

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{"ticker":"SNPS","transaction_code":["P","S"],"transaction_form_type":"4","page_size":20}

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.

Non-cancelled, non-derivative purchase (P) and sale (S) rows dated inside the public window, as reported. Includes open-market and private transactions. Data after the latest filing is not asserted complete and is not zero-filled. A grouped event shares filing, transaction date, security, code, direction, ownership bucket and source. Derivative groups also match underlying security, exercise price, exercise/expiration dates and footnote references. Reported rows are retained; P/S price lots can be grouped. Post-transaction balances are never summed.