Massivemarkets

SEC Form 4

Hycroft Mining Holding Corporation (HYMC) insider trading

In the 12 months to Oct 23, 2026, 6 HYMC insiders reported open-market sales of $3.8M across 11 filings; one 10% owner bought $125.8M.

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

Open-market sales
$3.8M
11 filings · 6 insiders
Open-market purchases
$125.8M
17 filings · Eric Sprott, 10% owner

$ excludes 1 trade without a price.

Who traded HYMC, and when

  • Purchase
  • Sale

HYMC daily close from Oct 23, 2025 to Oct 23, 2026, between $6.75 and $55.74, last $15.44. 11 sale and 17 purchase filings by 7 insiders, marked at their filing dates. Eric Sprott, 10% owner: bought $125.8M across 17 filings, first filed Nov 14, 2025, last Apr 27, 2026. David Brian Thomas, SVP, General Manager: sold $1.4M across 4 filings, first filed Oct 29, 2025, last Jun 18, 2026. Rebecca Jennings, SVP & General Counsel: sold $1.1M across 3 filings, first filed Mar 17, 2026, last Jun 16, 2026. Diane R. Garrett, Chair, President & CEO: sold $678.8K across 1 filing, first filed Jun 8, 2026, last Jun 8, 2026. Stanton K. Rideout, Executive Vice President & CFO: sold $498.0K across 1 filing, first filed Jun 8, 2026, last Jun 8, 2026. Marni Wieshofer, Director: sold $51.6K across 1 filing, first filed Dec 15, 2025, last Dec 15, 2025. AMC ENTERTAINMENT HOLDINGS, INC., 10% owner: across 1 filing, first filed Dec 5, 2025, last Dec 5, 2025.

Largest mark · tap a row for others

Eric Sprott · 10% owner

Filing 1 of 2 within a week · $29,814,087 total

Purchase $24,110,487

2,340,824 shares at $10.30 avg

Filed Dec 5, 2025 · traded Dec 3

Close on filing date $11.45

HYMC daily closelast $15.44

Eric Sprott · 10% owner

$125.8M bought

David Brian Thomas · SVP, General Manager

$1.4M sold

Rebecca Jennings · SVP & General Counsel

$1.1M sold

Diane R. Garrett · Chair, President & CEO

$678.8K sold

Stanton K. Rideout · Executive Vice President & CFO

$498.0K sold

Marni Wieshofer · Director

$51.6K sold

AMC ENTERTAINMENT HOLDINGS, INC. · 10% owner

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

Has the Hycroft Mining Holding Corporation's CEO sold stock?

Yes. Diane R. Garrett (CEO) sold 21,550 shares ($678.8K) in Jun 2026.

Open-market trades

28 filings in the last 12 months
InsiderRoleSoldBoughtFilingsPre-arranged (10b5-1)Last filed
Eric Sprott10% owner—$125.8M17—
David Brian ThomasSVP, General Manager$1.4M—4—
Rebecca JenningsSVP & General Counsel$1.1M—3—
Diane R. GarrettChair, President & CEO$678.8K—1—
Stanton K. RideoutExecutive Vice President & CFO$498.0K—1—
Marni WieshoferDirector$51.6K—1—
AMC ENTERTAINMENT HOLDINGS, INC.10% owner——1—
Other insider activity (not market trades) · 34 records
  • Option exercises1 record
  • Tax withholding8 records
  • Grants and awards23 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 HYMC 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.
Filing date
Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.
Counted once
When several owners (a fund and its partners, say) report the same trade, it's counted once. Corrected filings replace the originals.