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$ Value

Shares

2,000,000

Price

Filed

Dec 23

Insider

Name

Prager Paul B.

Title

Chief Executive Officer

CIK

0001877255

Roles

Director Officer 10% Owner

Transaction Details

Transaction Date

2025-12-23

Code

J

Table

Non-Derivative

Ownership

Indirect

Equity Swap

No

Shares After

33,554,688

Footnotes

Three million shares of common stock, par value $0.001 per share ("Common Stock") were contributed in the aggregate to the Riesling Goods and Services Trust for no consideration by the Reporting Person (447,000), Riesling Power LLC (2,000,000) and Beowulf E&D Holdings Inc. (553,000). | By Riesling Power LLC ("Riesling Power"). The Paul B. Prager Revocable Trust ("Prager Revocable Trust") is the sole member of Riesling Power. The Reporting Person is the sole trustee of the Prager Revocable Trust and may be deemed to have the power to direct the voting and disposition of the Common Stock beneficially owned by the Prager Revocable Trust. Accordingly, pursuant to the regulations promulgated under Section 13(d) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), Mr. Paul B. Prager may be deemed to be a beneficial owner of the shares of Common Stock held for the account of the Prager Revocable Trust . | By Beowulf E&D Holdings Inc. ("E&D Holdings"). The Reporting Person is the sole manager of E&D Holdings and, as a result, may be deemed to beneficially own the shares of the Common Stock held by E&D Holdings. The Reporting Person disclaims beneficial ownership of such shares of the Common Stock except to the extent of his pecuniary interest therein, and the inclusion of such shares of the Common Stock in this report shall not be deemed an admission of beneficial ownership of all of the reported shares of the Common Stock for purposes of Section 16 of the Exchange Act, or for any other purpose | By Stammtisch Investments LLC ("Stammtisch"). The Reporting Person is the sole manager of Stammtisch and, as a result, may be deemed to beneficially own the shares of Common Stock held by Stammtisch. The Reporting Person disclaims beneficial ownership of such shares of Common Stock except to the extent of his pecuniary interest therein, and the inclusion of such shares of Common Stock in this report shall not be deemed an admission of beneficial ownership of all of the reported shares of Common Stock for purposes of Section 16 of the Exchange Act, or for any other purpose. | By Heorot Power Holdings LLC ("Heorot"). The Reporting Person is the sole manager of Heorot and, as a result, may be deemed to beneficially own the shares of the Common Stock held by Heorot. The Reporting Person disclaims beneficial ownership of such shares of the Common Stock except to the extent of his pecuniary interest therein, and the inclusion of such shares of the Common Stock in this report shall not be deemed an admission of beneficial ownership of all of the reported shares of the Common Stock for purposes of Section 16 of the Exchange Act, or for any other purpose

Filing Info

Accession No.

0001083301-25-000123

Form Type

4

Issuer CIK

0001083301

Prager Paul B.'s History

Date Ticker Type Value
2026-04-14 WULF M
2026-04-14 WULF D
2026-04-14 WULF M
2026-03-25 WULF $2.3M
2026-03-25 WULF $67K
2026-03-24 WULF $2.2M
2026-01-02 WULF A $0
2026-01-02 WULF A $0
2025-12-31 WULF M
2025-12-31 WULF M

Other Insiders at WULF (90d)

Insider Bought Sold Last
Bucella Michael C. $200K 2026-03-31
Fleury Patrick
Chief Financial Officer
$9.7M 2026-04-14
Prager Paul B.
Chief Executive Officer
$4.5M 2026-04-14
Prager Lisa A. 2026-03-31
Langlais Kerri M.
Chief Strategy Officer
2026-04-14
Carter Walter E. 2026-03-31
Khan Nazar M.
Chief Technology Officer
2026-04-14