SOLARIS ENERGY INFRAS INC SEI
COM CL A · Common Stock · CUSIP 83418M103
- SectorIndustrials
- IndustryOil & Gas Field Machinery & Equipment
- HeadquartersHouston, TX
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($1.5m this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $45.97. Options: 15 managers hold calls ($136.9m notional), 16 hold puts ($117.6m).
Trends to Q4 2025
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 128 |
| Q4 2022 | 129 |
| Q1 2023 | 118 |
| Q2 2023 | 101 |
| Q3 2023 | 120 |
| Q4 2023 | 141 |
| Q1 2024 | 133 |
| Q2 2024 | 130 |
| Q3 2024 | 136 |
| Q4 2024 | 180 |
| Q1 2025 | 201 |
| Q2 2025 | 214 |
| Q3 2025 | 272 |
| Q4 2025 | 335 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q1 2024 | 65 | 83 |
| Q2 2024 | 58 | 72 |
| Q3 2024 | 74 | 76 |
| Q4 2024 | 104 | 71 |
| Q1 2025 | 144 | 69 |
| Q2 2025 | 144 | 84 |
| Q3 2025 | 168 | 101 |
| Q4 2025 | 209 | 117 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q1 2025 | $49.4m | $28.7m | 0.58 |
| Q2 2025 | $10.8m | $60.6m | 5.63 |
| Q3 2025 | $49.3m | $157.3m | 3.19 |
| Q4 2025 | $136.9m | $117.6m | 0.86 |
Biggest buyers
| PRINCIPAL FINANCIAL GROUP INC | Added | +1.4m |
| MILLENNIUM MANAGEMENT LLC | Added | +1.0m |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | New | +1.0m |
| CITADEL ADVISORS LLC | Added | +978.2k |
| Value Aligned Research Advisors, LLC | New | +975.9k |
| Qube Research & Technologies Ltd | Added | +874.8k |
| Valiant Capital Management, L.P. | New | +734.5k |
| Situational Awareness LP | Added | +716.2k |
| Nuveen, LLC | Added | +644.5k |
| JANE STREET GROUP, LLC | Added | +597.0k |
Biggest sellers
| Point72 Asset Management, L.P. | Reduced | -1.1m |
| BRIGHTLINE CAPITAL MANAGEMENT, LLC | Reduced | -753.0k |
| SIR Capital Management, L.P. | Reduced | -598.9k |
| DISCOVERY CAPITAL MANAGEMENT, LLC / CT | Sold out | -569.2k |
| BlackRock, Inc. | Reduced | -540.5k |
| PRICE T ROWE ASSOCIATES INC /MD/ | Reduced | -406.9k |
| Encompass Capital Advisors LLC | Reduced | -360.0k |
| Portolan Capital Management, LLC | Reduced | -344.0k |
| Squarepoint Ops LLC | Reduced | -250.2k |
| Concentric Capital Strategies, LP | Reduced | -207.4k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $53.6m1.2m shares |
| BARCLAYS PLC | New | $20.7m450.0k shares |
| Caption Management, LLC | Added | $20.7m450.0k shares |
| Lighthouse Investment Partners, LLC | New | $16.1m350.0k shares |
| JANE STREET GROUP, LLC | Added | $6.8m147.4k shares |
| IMC-Chicago, LLC | Added | $4.5m98.0k shares |
| CITADEL ADVISORS LLC | Reduced | $4.3m92.7k shares |
| GROUP ONE TRADING LLC | Added | $2.6m56.1k shares |
| SIMPLEX TRADING, LLC | Reduced | $2.4m51.2k shares |
| Walleye Capital LLC | New | $1.5m32.2k shares |
Biggest puts
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC | Reduced | $71.7m1.6m shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $7.1m153.7k shares |
| Aristides Capital LLC | Added | $6.7m145.4k shares |
| CITADEL ADVISORS LLC | Reduced | $6.5m140.6k shares |
| IMC-Chicago, LLC | Added | $5.2m112.8k shares |
| Balyasny Asset Management L.P. | New | $4.9m107.5k shares |
| JANE STREET GROUP, LLC | Reduced | $3.5m75.6k shares |
| GROUP ONE TRADING LLC | Reduced | $3.2m69.1k shares |
| AYAL Capital Advisors Ltd | Reduced | $2.8m60.0k shares |
| AMERIPRISE FINANCIAL INC | Reduced | $1.6m34.9k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| BlackRock, Inc. 13G · institution +6.1 pts · filed 2026-08-06 | 13.1% |
| Zartler William A 13G · exempt (held before listing) -2.1 pts · filed 2026-02-13 | 10.0% |
| Solaris Energy Capital, LLC 13G · exempt (held before listing) filed 2025-02-14 | 8.5% |
| Yorktown Energy Partners X, L.P. 13G · passive -8.9 pts · filed 2026-08-14 | 7.2% |
| Voya Financial, Inc. 13G · institution new · filed 2026-02-12 | 5.2% |
Fell to 5% or below in the last year: Encompass Capital Advisors LLC (3.0%, 2026-05-15), FMR LLC (3.8%, 2026-05-06), VANGUARD GROUP INC (0.0%, 2026-03-27), JANE STREET GROUP, LLC (3.7%, 2026-02-04), DRIEHAUS CAPITAL MANAGEMENT LLC (2.2%, 2025-11-14), SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC (5.0%, 2025-11-14)
Insider purchases and sales in Q4 2025
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q1 2024 | 0 | — | 1 | $148.8k | — |
| Q2 2024 | 0 | — | 0 | — | — |
| Q3 2024 | 0 | — | 0 | — | — |
| Q4 2024 | 0 | — | 3 | $23.9m | — |
| Q1 2025 | 4 | $807.5k | 0 | — | — |
| Q2 2025 | 2 | $316.5k | 0 | — | — |
| Q3 2025 | 2 | $298.3k | 3 | $817.2k | — |
| Q4 2025 | 2 | $349.2k | 3 | $2.8m | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2025-12-17 | Durrett Cynthia M. CHIEF ADMINISTRATIVE OFFICER, director | Sold | $2.1m47.0k shares |
| 2025-12-17 | Brock Amanda M Co-Chief Executive Officer, director | Bought | $150.0k3.7k shares |
| 2025-12-17 | Argo Laurie H Director | Sold | $101.8k2.3k shares |
| 2025-12-17 | TEAGUE AJ Director | Bought | $99.6k2.3k shares |
| 2025-12-17 | TEAGUE AJ Director · Spouse | Bought | $99.6k2.3k shares |
| 2025-12-10 | BURKE JAMES R Director | Sold | $598.0k11.3k shares |
| 2025-11-04 | KTR Management Company, LLC +1 10% owner | Sold | $106.1m2.1m shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q4 2025
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.00% of their portfolio | 4.3m $198.2m | Reduced -540.5k |
| VANGUARD GROUP INC 0.00% of their portfolio | 2.9m $133.9m | Added +248.8k |
| Encompass Capital Advisors LLC 5.63% of their portfolio | 2.6m $117.7m | Reduced -360.0k |
| FMR LLC 0.01% of their portfolio | 2.3m $105.3m | Added +52.1k |
| MORGAN STANLEY 0.01% of their portfolio | 2.1m $96.1m | Added +199.8k |
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC 2.68% of their portfolio | 2.1m $95.4m | Added +280.0k |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 1.9m $86.6m | Added +186.4k |
| Situational Awareness LP 2.19% of their portfolio | 1.9m $85.8m | Added +716.2k |
| MILLENNIUM MANAGEMENT LLC 0.06% of their portfolio | 1.8m $84.8m | Added +1.0m |
| JANE STREET GROUP, LLC 0.09% of their portfolio | 1.6m $75.4m | Added +597.0k |
| PRINCIPAL FINANCIAL GROUP INC 0.03% of their portfolio | 1.5m $67.4m | Added +1.4m |
| Advent International, L.P. 1.20% of their portfolio | 1.3m $58.1m | Added +256.9k |
| WELLINGTON MANAGEMENT GROUP LLP 0.01% of their portfolio | 1.2m $57.4m | Added +25.1k |
| VAN ECK ASSOCIATES CORP 0.05% of their portfolio | 1.2m $57.1m | Reduced -54.2k |
| Driehaus Capital Management LLC 0.38% of their portfolio | 1.2m $56.4m | Added +266.2k |
| STATE STREET CORP 0.00% of their portfolio | 1.2m $54.0m | Added +130.6k |
| CITADEL ADVISORS LLC 0.04% of their portfolio | 1.2m $53.5m | Added +978.2k |
| Qube Research & Technologies Ltd 0.08% of their portfolio | 1.2m $53.1m | Added +874.8k |
| GW&K Investment Management, LLC 0.43% of their portfolio | 1.1m $49.8m | Reduced -95.4k |
| TWO SIGMA INVESTMENTS, LP 0.07% of their portfolio | 1.1m $49.6m | Added +72.6k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 1.0m $47.0m | Added +112.0k |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND 0.08% of their portfolio | 1.0m $46.9m | New |
| Value Aligned Research Advisors, LLC 0.92% of their portfolio | 975.9k $44.9m | New |
| Goodlander Investment Management, LLC 16.86% of their portfolio | 960.0k $44.1m | Added +310.0k |
| MARSHALL WACE, LLP 0.04% of their portfolio | 838.1k $38.5m | Added +305.6k |
| Ceredex Value Advisors LLC 1.12% of their portfolio | 812.9k $37.4m | Reduced -64.0k |
| Valiant Capital Management, L.P. 2.84% of their portfolio | 734.5k $33.8m | New |
| DIMENSIONAL FUND ADVISORS LP 0.01% of their portfolio | 728.5k $33.5m | Added +151.2k |
| Nuveen, LLC 0.01% of their portfolio | 717.0k $33.0m | Added +644.5k |
| WESTWOOD HOLDINGS GROUP INC 0.26% of their portfolio | 689.8k $31.7m | Reduced -171.4k |
| UBS Group AG 0.01% of their portfolio | 642.2k $29.5m | Added +51.5k |
| KENNEDY CAPITAL MANAGEMENT LLC 0.61% of their portfolio | 629.7k $28.9m | Added +312.0k |
| EMERALD ADVISERS, LLC 0.89% of their portfolio | 626.7k $28.8m | Added +10.0k |
| Ranger Investment Management, L.P. 1.97% of their portfolio | 623.2k $28.6m | Added +197.1k |
| TWO SIGMA ADVISERS, LP 0.05% of their portfolio | 553.4k $25.4m | Added +283.6k |
| VOYA INVESTMENT MANAGEMENT LLC 0.02% of their portfolio | 476.5k $21.9m | Reduced -54.5k |
| DEUTSCHE BANK AG\ 0.01% of their portfolio | 397.4k $18.3m | Added +345.0k |
| Sagefield Capital LP 1.54% of their portfolio | 396.5k $18.2m | Added +93.7k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 376.3k $17.3m | Added +37.4k |
| No Street GP LP 1.16% of their portfolio | 375.0k $17.2m | New |
| JENNISON ASSOCIATES LLC 0.01% of their portfolio | 374.4k $17.2m | Reduced -12.0k |
| OBERWEIS ASSET MANAGEMENT INC/ 0.62% of their portfolio | 366.9k $16.9m | Unchanged |
| NORTHERN TRUST CORP 0.00% of their portfolio | 360.8k $16.6m | Added +26.8k |
| CenterBook Partners LP 0.80% of their portfolio | 356.5k $16.4m | Reduced -59.0k |
| ROYCE & ASSOCIATES LP 0.15% of their portfolio | 332.0k $15.3m | Reduced -162.6k |
| Progeny 3, Inc. 0.80% of their portfolio | 322.3k $14.8m | Unchanged |
| BARCLAYS PLC 0.01% of their portfolio | 322.1k $14.8m | Added +251.4k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 321.4k $14.8m | Reduced -406.9k |
| TUDOR INVESTMENT CORP ET AL 0.08% of their portfolio | 320.3k $14.7m | Reduced -147.8k |
| CITIGROUP INC 0.01% of their portfolio | 315.5k $14.5m | Added +203.6k |
| EMERALD MUTUAL FUND ADVISERS TRUST 0.70% of their portfolio | 312.0k $14.3m | Added +3.2k |
| Balyasny Asset Management L.P. 0.03% of their portfolio | 311.0k $14.3m | New |
| AYAL Capital Advisors Ltd 7.78% of their portfolio | 309.1k $14.2m | Added +77.7k |
| T. Rowe Price Investment Management, Inc. 0.01% of their portfolio | 303.5k $14.0m | New |
| Aventail Capital Group, LP 0.79% of their portfolio | 300.1k $13.8m | Added +33.8k |
| Hiddenite Capital Partners LP 7.12% of their portfolio | 300.0k $13.8m | Reduced -50.0k |
| Penn Capital Management Company, LLC 1.06% of their portfolio | 288.3k $13.3m | Added +271.0k |
| BNP PARIBAS FINANCIAL MARKETS 0.01% of their portfolio | 286.9k $13.2m | Added +280.0k |
| BESSEMER GROUP INC 0.02% of their portfolio | 280.6k $12.9m | Added +277.9k |
| Lighthouse Investment Partners, LLC 0.42% of their portfolio | 277.5k $12.8m | Added +247.4k |
| Russell Investments Group, Ltd. 0.01% of their portfolio | 268.1k $12.3m | Added +31.7k |
| BANK OF NOVA SCOTIA 0.02% of their portfolio | 267.1k $12.3m | New |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 261.1k $12.0m | Added +140.0k |
| Ratan Capital Management LP 3.16% of their portfolio | 250.1k $11.5m | New |
| BRIGHTLINE CAPITAL MANAGEMENT, LLC 4.65% of their portfolio | 250.0k $11.5m | Reduced -753.0k |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. 0.02% of their portfolio | 249.9k $11.5m | First filing |
| BANK OF MONTREAL /CAN/ 0.00% of their portfolio | 249.2k $11.5m | Added +243.8k |
| ExodusPoint Capital Management, LP 0.13% of their portfolio | 249.2k $11.5m | Added +160.9k |
| Stephens Investment Management Group LLC 0.15% of their portfolio | 247.6k $11.4m | Reduced -18.5k |
| GILDER GAGNON HOWE & CO LLC 0.12% of their portfolio | 244.0k $11.2m | Reduced -16.4k |
| FIRST TRUST ADVISORS LP 0.01% of their portfolio | 237.1k $10.9m | Added +199.8k |
| Assenagon Asset Management S.A. 0.02% of their portfolio | 227.5k $10.5m | Reduced -168.0k |
| Wealth High Governance Asset Management Ltda. 1.76% of their portfolio | 213.6k $9.8m | First filing |
| PINNACLE ASSOCIATES LTD 0.13% of their portfolio | 213.3k $9.8m | Reduced -141.9k |
| Freestone Grove Partners LP 0.07% of their portfolio | 213.1k $9.8m | Added +185.0k |
| Jump Financial, LLC 0.12% of their portfolio | 209.0k $9.6m | Reduced -30.9k |
| SG Americas Securities, LLC 0.01% of their portfolio | 206.1k $9.5m | Added +192.8k |
| Channing Capital Management, LLC 0.24% of their portfolio | 205.3k $9.4m | Reduced -62.5k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 203.7k $9.4m | Reduced -104.6k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.01% of their portfolio | 202.8k $9.3m | Added +189.7k |
| Banco Santander, S.A. 0.06% of their portfolio | 174.5k $8.0m | New |
| NEUBERGER BERMAN GROUP LLC 0.01% of their portfolio | 169.2k $7.8m | New |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 165.6k $7.6m | Added +130.3k |
| SIR Capital Management, L.P. 0.84% of their portfolio | 165.0k $7.6m | Reduced -598.9k |
| Meros Investment Management, LP 3.00% of their portfolio | 164.3k $7.6m | Reduced -127.4k |
| CASTLEARK MANAGEMENT LLC 0.20% of their portfolio | 151.0k $6.9m | Reduced -42.9k |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC 0.04% of their portfolio | 148.9k $6.8m | Reduced -54.2k |
| Uniplan Investment Counsel, Inc. 0.67% of their portfolio | 144.4k $6.6m | Reduced -39.4k |
| Universal- Beteiligungs- und Servicegesellschaft mbH 0.01% of their portfolio | 144.4k $6.6m | Added +65.9k |
| Verition Fund Management LLC 0.04% of their portfolio | 141.9k $6.5m | Added +106.4k |
| SEI INVESTMENTS CO 0.01% of their portfolio | 138.2k $6.4m | Added +104.6k |
| LMR Partners LLP 0.06% of their portfolio | 136.9k $6.3m | Added +105.4k |
| BW Gestao de Investimentos Ltda. 0.22% of their portfolio | 136.4k $6.3m | New |
| Wealth High Governance Capital Ltda 1.84% of their portfolio | 136.4k $6.3m | New |
| Alyeska Investment Group, L.P. 0.02% of their portfolio | 134.6k $6.2m | New |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.01% of their portfolio | 133.8k $6.2m | Added +55.9k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 132.0k $6.1m | Added +37.5k |
| GeoSphere Capital Management, LLC 4.11% of their portfolio | 129.5k $6.0m | Reduced -10.0k |
| Informed Momentum Co LLC 0.63% of their portfolio | 123.0k $5.7m | Added +101.7k |
| Corigliano Investment Advisers, LLC 1.97% of their portfolio | 120.4k $5.5m | New |