🕵️ Solaris Energy Infrastructure, Inc. ($SEI)
SEC insider & ownership activity, last 12 months · CIK 1697500 · every row links its SEC filing
Over the last 12 months insiders sold $406.6M against $1.3M of open-market buying. KTR Management Company, LLC sold $247.6M in discretionary trades (Nov–Apr). BlackRock, Inc. added 7.0% → 13.1%; William A. Zartler trimmed 12.1% → 10.0%. No red-flag 8-Ks in the window.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
2 buyers, $1.3M (7 lots) · 8 sellers, $406.6M (12 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| KTR Management Company, LLC | 0 | – | 2 | $247.6M | Apr 30, 2026 |
| Keenan W. Howard Jr. | 0 | – | 1 | $149.0M | May 6, 2026 |
| Ray N. Walker Jr. | 0 | – | 1 | $4.1M | May 8, 2026 |
| Christopher M. Powell | 0 | – | 3 | $2.8M | May 11, 2026 |
| Cynthia M. Durrett | 0 | – | 1 | $2.1M | Dec 17, 2025 |
| Teague Aj | 6 | $1.2M | 0 | – | Sep 8, 2026 |
| James R. Burke | 0 | – | 1 | $598K | Dec 10, 2025 |
| Laurie H. Argo | 0 | – | 2 | $481K | May 12, 2026 |
| Amanda M. Brock | 1 | $150K | 0 | – | Dec 17, 2025 |
| Christopher P. Wirtz | 0 | – | 1 | $54K | May 13, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Yorktown Energy Partners X, L.P. | 16.1% | 13G | Feb 14, 2025 | filing ↗ | |
| BlackRock, Inc. | 13.1% | Class A | 13G | Aug 6, 2026 | filing ↗ |
| William A. Zartler | 10.0% | 13G | Feb 13, 2026 | filing ↗ | |
| Solaris Energy Capital, LLC | 8.5% | 13G | Feb 14, 2025 | filing ↗ | |
| Yorktown Energy Partners X, L.P. | 7.2% | Class A | 13G | Aug 14, 2026 | filing ↗ |
| Yorktown X Company LP | 7.2% | Class A | 13G | Aug 14, 2026 | filing ↗ |
| Yorktown X Associates LLC | 7.2% | Class A | 13G | Aug 14, 2026 | filing ↗ |
| VOYA Financial, Inc. | 5.2% | 13G | Feb 12, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Yorktown Energy Partners X, L.P. | $149.0M | May 6, 2026 | filing ↗ |
| KTR Management Company, LLC | $106.1M | Nov 4, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Material agreement (1.01) | Sep 1, 2026 | filing ↗ |
| Acquisition or disposition (2.01) | Sep 1, 2026 | filing ↗ |
| Unregistered equity sale (3.02) | Sep 1, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Sep 1, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Sep 1, 2026 | filing ↗ |
| Earnings (2.02) | Aug 5, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 5, 2026 | filing ↗ |
| Unregistered equity sale (3.02) | Jul 1, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jul 1, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 1, 2026 | filing ↗ |
| Shareholder vote (5.07) | May 15, 2026 | filing ↗ |
| Material agreement (1.01) | May 12, 2026 | filing ↗ |
| Agreement terminated (1.02) | May 12, 2026 | filing ↗ |
| New financial obligation (2.03) | May 12, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 12, 2026 | filing ↗ |
| Material agreement (1.01) | May 5, 2026 | filing ↗ |
| Other events (8.01) | May 5, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 5, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | May 5, 2026 | filing ↗ |
| Other events (8.01) | May 5, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 5, 2026 | filing ↗ |
| Earnings (2.02) | Apr 27, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 27, 2026 | filing ↗ |
| Other events (8.01) | Apr 24, 2026 | filing ↗ |
| Material agreement (1.01) | Apr 8, 2026 | filing ↗ |
| New financial obligation (2.03) | Apr 8, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 8, 2026 | filing ↗ |
| Acquisition or disposition (2.01) | Mar 16, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 16, 2026 | filing ↗ |
| Material agreement (1.01) | Mar 16, 2026 | filing ↗ |