YORKTOWN ENERGY PARTNERS X, L.P.
What YORKTOWN ENERGY PARTNERS X, L.P. holds in an AI or semiconductor company tracked on Silicon Floor, from their SEC filings, broken down: the shares held and how, then any restricted shares, options or other rights declared.
Solaris Energy Infrastructure (SEI)
The Schedule 13G of May 6, 2026 counts 5.1M shares (6.6%) as YORKTOWN ENERGY PARTNERS X, L.P.'s.
- Exchangeable units: 5.1M (6.6%), $381.8M — 5.1M shares to be obtained one for one by exchanging units of the subsidiary that runs the business.
Declarations
- Solaris Energy Infrastructure (SEI) — 13G filed Aug 14, 2026: 5.1M shares counted as of May 6, 2026, 7.2% as declared
- Solaris Energy Infrastructure (SEI) — 13G filed Feb 14, 2025: 7.1M shares counted as of Dec 31, 2024, 16.1% as declared
Sources: SEC Schedules 13D and 13G (stakes above 5%, which count everything a person votes or can acquire within 60 days) and Forms 3, 4 and 5 (the shares a director, officer or 10% owner holds, filed within two business days of each trade). Values at the last price.