Massivemarkets

SEC Form 4

Riot Platforms, Inc. (RIOT) insider trading

In the 12 months to Oct 23, 2026, 2 RIOT insiders reported open-market sales of $9.5M across 6 filings; no open-market purchases were filed.

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

Open-market sales
$9.5M
6 filings · 2 insiders
Open-market purchases
$0
0 filings
Pre-arranged sales (10b5-1)
6 of 6
All $9.5M sold was pre-arranged

Who traded RIOT, and when

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

RIOT daily close from Oct 23, 2025 to Oct 22, 2026, between $11.83 and $28.69, last $12.89. 6 sale and 0 purchase filings by 2 insiders, marked at their filing dates. Jason Les, CEO: sold $6.3M across 2 filings, first filed May 13, 2026, last Jun 24, 2026. Ryan D. Werner, SVP, CAO: sold $3.2M across 4 filings, first filed May 29, 2026, last Aug 7, 2026.

Largest mark · tap a row for others

Jason Les · CEO

Sale $4,408,250

175,000 shares at $25.19 avg

Filed May 13, 2026 · traded May 11

Pre-arranged (10b5-1) · close on filing date $24.92

RIOT daily closelast $12.89

Jason Les · CEO

$6.3M sold

Ryan D. Werner · SVP, CAO

$3.2M sold
One row per insider; marks sit at the SEC filing date, sized by dollar value.

Has Riot Platforms, Inc.'s CEO sold stock?

Yes. Jason Les (CEO) sold 237,703 shares ($6.3M) between May 2026 and Jun 2026, all under a pre-arranged 10b5-1 plan.

Open-market trades

6 filings in the last 12 months
InsiderRoleSoldBoughtFilingsPre-arranged (10b5-1)Last filed
Jason LesCEO$6.3M—2100% of sales
Ryan D. WernerSVP, CAO$3.2M—4100% of sales
Other insider activity (not market trades) · 30 records
  • Option exercises1 record
  • Tax withholding9 records
  • Grants and awards18 records
  • Gifts1 record
  • Other1 record

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:

Agent prompt

Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for RIOT 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.