Massivemarkets

SEC Form 4

SentinelOne, Inc. (S) insider trading

In the 12 months to Oct 23, 2026, 3 S insiders reported open-market sales of $29.0M across 16 filings; one director bought $595.6K.

Latest filing · Last 12 months · Source: SEC EDGAR · How we count

Open-market sales
$29.0M
16 filings · 3 insiders
Open-market purchases
$595.6K
1 filing · Mark S. Peek, Director
Pre-arranged sales (10b5-1)
16 of 16
All $29.0M sold was pre-arranged

Who traded S, and when

  • Purchase
  • Sale
  • Sale, pre-arranged (10b5-1)

S daily close from Oct 23, 2025 to Oct 23, 2026, between $11.94 and $26.27, last $24.00. 16 sale and 1 purchase filings by 4 insiders, marked at their filing dates. Tomer Weingarten, President, CEO: sold $27.8M across 12 filings, first filed Nov 7, 2025, last Oct 6, 2026. Sonalee Elizabeth Parekh, Chief Financial Officer: sold $834.5K across 2 filings, first filed Sep 9, 2026, last Oct 9, 2026. Mark S. Peek, Director: bought $595.6K across 1 filing, first filed Dec 18, 2025, last Dec 18, 2025. Robin Tomasello, Chief Accounting Officer: sold $406.2K across 2 filings, first filed Sep 9, 2026, last Sep 11, 2026.

Largest mark · tap a row for others

Tomer Weingarten · President, CEO

Sale $13,323,531

527,368 shares at $25.26 avg

Filed Oct 6, 2026 · traded Oct 5

Pre-arranged (10b5-1) · close on filing date $25.80

S daily closelast $24.00

Tomer Weingarten · President, CEO

$27.8M sold

Sonalee Elizabeth Parekh · Chief Financial Officer

$834.5K sold

Mark S. Peek · Director

$595.6K bought

Robin Tomasello · Chief Accounting Officer

$406.2K sold
One row per insider; marks sit at the SEC filing date, sized by dollar value.

Has SentinelOne, Inc.'s CEO sold stock?

Yes. Tomer Weingarten (CEO) sold 1,424,788 shares ($27.8M) between Nov 2025 and Oct 2026, all under a pre-arranged 10b5-1 plan.

Open-market trades

17 filings in the last 12 months
InsiderRoleSoldBoughtFilingsPre-arranged (10b5-1)Last filed
Tomer WeingartenPresident, CEO$27.8M—12100% of sales
Sonalee Elizabeth ParekhChief Financial Officer$834.5K—2100% of sales
Mark S. PeekDirector—$595.6K1—
Robin TomaselloChief Accounting Officer$406.2K—2100% of sales
Other insider activity (not market trades) · 82 records
  • Tax withholding (sold to cover)42 records
  • Grants and awards27 records
  • Gifts1 record
  • Other12 records

Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.

Build this yourself

This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:

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Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for S every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.

How to read this page

Open-market purchase or sale
A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
Pre-arranged (10b5-1)
The insider marked the filing as made under a trading plan set up in advance (SEC Rule 10b5-1). The mark covers the whole filing, and an unmarked filing may still be under a plan.
Filing date
Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.