Solaris Energy Infrastructure, Inc. (SEI) ownership: Top institutional holder: BlackRock, Inc. ($232.96M). Insider activity: Net Seller (2 buys, 18 sells). 3 recent congressional STOCK Act disclosures. SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| BlackRock, Inc. | 4122436.00 | $232.96M | 2026-03-31 |
| VANGUARD GROUP INC | 2913632.00 | $133.94M | 2025-12-31 |
| MILLENNIUM MANAGEMENT LLC | 2285544.00 | $129.16M | 2026-03-31 |
| VANGUARD CAPITAL MANAGEMENT LLC | 2040451.00 | $115.31M | 2026-03-31 |
| VAN ECK ASSOCIATES CORP | 1954455.00 | $110.45M | 2026-03-31 |
| TWO SIGMA INVESTMENTS, LP | 1941546.00 | $109.72M | 2026-03-31 |
| FMR LLC | 1862561.00 | $105.25M | 2026-03-31 |
| Encompass Capital Advisors LLC | 1750000.00 | $98.89M | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-05-13 | |
| Sell | null | 2026-05-12 | |
| Sell | null | 2026-05-11 | |
| Sell | null | 2026-05-11 | |
| Sell | null | 2026-05-11 | |
| Sell | null | 2026-05-08 | |
| Sell | null | 2026-05-08 | |
| Sell | null | 2026-05-08 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.