Solaris Energy Infrastructure, Inc.·4

May 7, 8:38 PM ET

Keenan W Howard JR 4

Research Summary

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Solaris Energy (SEI) Director Keenan W. Howard Jr. Sells $149M Shares

What Happened

  • Keenan W. Howard Jr., a Solaris Energy Infrastructure, Inc. (SEI) director acting in connection with Yorktown Energy Partners X, L.P., reported a set of related transactions on May 6, 2026. The filing shows a conversion of derivative securities (Solaris LLC units / related Class B shares) into 2,000,000 shares of Class A common stock (reported as acquired at $0.00), followed the same day by an open-market/private sale of 2,000,000 Class A shares at $74.50 per share, for total proceeds of $149,000,000. The filing also records cancellation/disposition entries related to Class B shares and the converted derivative interest.

Key Details

  • Transaction date: May 6, 2026. Filing date: May 7, 2026 (timely).
  • Sale: 2,000,000 Class A shares sold at $74.50 each — proceeds $149,000,000.
  • Conversion: 2,000,000 Solaris LLC units / related Class B shares converted/exchanged into Class A shares (reported at $0.00), with corresponding cancellation of Class B shares per the Solaris LLC Agreement.
  • Ownership after transaction: the filing does not state total post-transaction holdings for the reporting person; the securities are owned directly by Yorktown Energy Partners X, L.P. (see footnotes).
  • Reporting notes: F1–F5 clarify that (a) Class B shares carried voting but no economic rights, (b) Solaris LLC Units are exchangeable for Class A stock under the Solaris LLC Agreement, (c) the reported securities are owned by Yorktown X, and (d) Mr. Howard disclaims beneficial ownership except for any pecuniary interest.

Context

  • This was effectively a conversion of private LLC units/Class B shares into Class A shares followed by an immediate sale of those Class A shares. The derivative/conversion entries reflect the mechanics of exchanging Solaris LLC Units (and cancelling Class B shares) for Class A stock before the disposition.
  • The filing indicates the transactions were made by/for Yorktown Energy Partners X, L.P.; Mr. Howard is a manager/member of entities that control Yorktown X, and he disclaims direct beneficial ownership except to the extent of any personal economic interest.