Matthew Ian Heinlein - SEC Form 4 Insider Trading Activity
Summary
Updated Aug 4, 2026
Matthew Ian Heinlein has filed 1 SEC Form 4 filing across 1 company in the last 90 days.
Profile
Matthew Ian Heinlein is a corporate insider at WhiteHawk Minerals Corp. (WHK). Heinlein has reported 1 insider filing with the SEC since 2026. The most recent filing was in June 2026.
| Role | Officer title: Vice President, Head of Corporate Development & Strategy |
|---|---|
| Notability | 20/100 |
Board memberships
- WhiteHawk Minerals Corp.
Trading Pattern
InsiderAlpha's records for Matthew Ian Heinlein go back to 2026: 1 primary Form 4 filing, an average of 1.0 per year. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Career & Filing History
Every role Matthew Ian Heinlein has reported on a Form 4, reconstructed from the filings themselves - reporting insiders must state their relationship to the issuer (officer title, director seat, or 10% ownership) on every filing.
- Insider at WhiteHawk Minerals Corp. (WHK) - 1 filing, 2026
Recent Transactions
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-06-12 | WHK | WhiteHawk Minerals Corp. | D - Derivative transaction | 100 | - | |
| 2026-06-12 | WHK | WhiteHawk Minerals Corp. | A - Grant or award | 5.6K | - | |
| 2026-06-12 | WHK | WhiteHawk Minerals Corp. | A - Grant or award | 100 | - |
Companies - Last 90 Days
- WhiteHawk Minerals Corp. (WHK) - 1 filing, last 2026-06-12
Most Active Insiders Right Now
Matthew Ian Heinlein has no recent co-filers at the same companies, so here are the insiders with the largest open-market activity across the market in the last 90 days.
- MetLife Investment Management, LLC - $1600000.00B of FINS open-market activity in the last 90 days
- Magnetar Financial LLC - $16357.48B of CRWV open-market activity in the last 90 days
- Marianne Okland - $18.46B of STNG open-market activity in the last 90 days
- VisionWave Holdings, Inc. - $14.13B of SVRE open-market activity in the last 90 days
- Vanessa Allen Sutherland - $7.44B of PSX open-market activity in the last 90 days
- AI Alpine (Luxembourg) S.a.r.l. - $2.69B of INIO open-market activity in the last 90 days
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
- Neil Mehta
- Keith A. Meister
- MetLife Investment Management, LLC
- John Micek
- Andrew J. Mills
- Charles N. Mills
- Kevin J. Mills
- Mink Brook Asset Management LLC
Frequently Asked Questions
Who is Matthew Ian Heinlein?
Matthew Ian Heinlein is a corporate insider at WhiteHawk Minerals Corp. (WHK). Heinlein has reported 1 insider filing with the SEC since 2026. The most recent filing was in June 2026.…
How many SEC Form 4 filings has Matthew Ian Heinlein submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Where can I see all of Matthew Ian Heinlein's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
Learn More
Open the live Matthew Ian Heinlein profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.