Matthew Ian Heinlein - 02 Mar 2026 Form 4 Insider Report for WhiteHawk Minerals Corp. (WHK)

Reporting relationship: Officer title: Vice President, Head of Corporate Development & Strategy
Issuer ticker: WHK
Reported as of: 02 Mar 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 12 Jun 2026, 16:05:24 UTC
Next SEC filing: 09 Jun 2026
Source filing: View source filing
Reporting owner signature: /s/ Barrie Hananel, Attorney-in-Fact

Key filing fact

Matthew Ian Heinlein filed Form 4 for WhiteHawk Minerals Corp. (WHK) on 12 Jun 2026.

Key facts

This page summarizes Matthew Ian Heinlein's Form 4 filing for WhiteHawk Minerals Corp. (WHK).
3 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 12 Jun 2026, 16:05.

Change

No earlier filing in this sequence is available for direct comparison.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0002137624 Primary reporting owner

Heinlein Matthew Ian

Relationship: Officer title: Vice President, Head of Corporate Development & Strategy
Address: 2000 MARKET STREET, SUITE 910, PHILADELPHIA
Signature: /s/ Barrie Hananel, Attorney-in-Fact
Signature date: 12 Jun 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

WHK transaction

Series D Preferred Stock

Award

Transaction value
Shares: +100
Change %
Price
Shares after: 100
Date: 02 Mar 2026
Ownership: Direct
Footnotes: F1, F2

WHK transaction

Class A Common Stock

Award

Transaction value
Shares: +5,584
Change %
Price
Shares after: 5,584
Date: 08 Jun 2026
Ownership: Direct
Footnotes: F1, F3

WHK transaction

Series D Preferred Stock

Disposed to Issuer

Transaction value
Shares: -100
Change %: -100%
Price
Shares after: 0
Date: 10 Jun 2026
Ownership: Direct
Footnotes: F4

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 4 footnotes

Footnote F1

This transaction occurred prior to the Issuer's registration of a class of equity securities under Section 12 of the Securities Exchange Act of 1934, as amended, in connection with the Issuer's initial public offering, and is reported herein pursuant to Rule 16a-2(a).

Footnote F2

Represents an acquisition of Series D Preferred Stock from the Issuer for $1,000 per share.

Footnote F3

Represents an acquisition of shares of Class A Common Stock pursuant to a reorganization of the Issuer.

Footnote F4

The Series D Preferred Stock was redeemed by the Issuer in connection with the consummation of its initial public offering, for an amount consisting of (i) the stated value of $1,000 per share and (ii) $5,621.92 of accrued dividends and additional amounts necessary such that the holder received the Minimum Return (as defined in the Certificate of Designations of the Series D Preferred Stock).

SEC remarks

Officer title: Vice President, Head of Corporate Development & Strategy