Solaris Energy Infrastructure SEI Institutional Ownership

Solaris Energy Infrastructure, Inc. (NYSE:SEI) has 431 institutional investors that have filed 13F reports for the period ending June 2026.

• They owned 120.6% of outstanding stock in June 2026, down from 124.7% the prior quarter.
• Their total shares held in SEI increased 14.55% quarter over quarter, and separately, investors owning Solaris Energy Infrastructure increased 104.27% from a year ago.
• Activity in SEI broke down as 275 buyers, 123 sellers, and 33 unchanged among 431 total holders.
• Altogether, these fund groups held 71.41Mn shares in SEI by June 2026, up by 9.07Mn shares quarter on quarter, and up 25.23Mn shares year over year.
• BlackRock, Inc. leads ownership in SEI with 5.2Mn shares as of June 30, 2026, equal to 8.79% of outstanding shares.
• Top purchasers of SEI stock for the quarter ending June 2026 included BlackRock, Inc. (1.08Mn), Clearbridge Investments, LLC (1.03Mn), Encompass Capital Advisors LLC (769.6K), Alyeska Investment Group, L.P. (761.76K), PRICE T ROWE ASSOCIATES INC /MD/ (747.0K).
• Top sellers of SEI stock for the quarter ending June 2026 included MILLENNIUM MANAGEMENT LLC (2.02Mn), JANE STREET GROUP, LLC (1.52Mn), MARSHALL WACE, LLP (1.04Mn), VAN ECK ASSOCIATES CORP (475.79K), Assenagon Asset Management S.A. (352.33K).
• Per Business Quant, the top 10 investors in SEI for the quarter ending June 2026 include BlackRock, Inc. (5.2Mn), Encompass Capital Advisors LLC (2.52Mn), VANGUARD CAPITAL MANAGEMENT LLC (2.45Mn), Morgan Stanley (2.02Mn), TWO SIGMA INVESTMENTS, LP (1.98Mn), SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC (1.69Mn), JENNISON ASSOCIATES LLC (1.69Mn), Valiant Capital Management, L.P. (1.6Mn), DRIEHAUS CAPITAL MANAGEMENT LLC (1.58Mn), FMR LLC (1.58Mn).