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 ($6.6m this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $21.76. Options: 14 managers hold calls ($49.4m notional), 10 hold puts ($28.7m).
Trends to Q1 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 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q2 2023 | 52 | 60 |
| Q3 2023 | 60 | 43 |
| Q4 2023 | 79 | 46 |
| Q1 2024 | 65 | 83 |
| Q2 2024 | 58 | 72 |
| Q3 2024 | 74 | 76 |
| Q4 2024 | 104 | 71 |
| Q1 2025 | 144 | 69 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q2 2024 | $104.2k | $6.9k | 0.07 |
| Q3 2024 | $1.3m | $21.4k | 0.02 |
| Q4 2024 | $13.9m | $103.3k | 0.01 |
| Q1 2025 | $49.4m | $28.7m | 0.58 |
Biggest buyers
| Driehaus Capital Management LLC | Added | +1.5m |
| Encompass Capital Advisors LLC | Added | +1.3m |
| BlackRock, Inc. | Added | +877.1k |
| MILLENNIUM MANAGEMENT LLC | Added | +846.7k |
| CITADEL ADVISORS LLC | Added | +638.6k |
| SCOPUS ASSET MANAGEMENT, L.P. | New | +520.7k |
| SIR Capital Management, L.P. | Added | +475.1k |
| WESTWOOD HOLDINGS GROUP INC | Added | +366.7k |
| OBERWEIS ASSET MANAGEMENT INC/ | New | +360.0k |
| GOLDMAN SACHS GROUP INC | Added | +326.6k |
Biggest sellers
| T. Rowe Price Investment Management, Inc. | Reduced | -2.1m |
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC | Reduced | -983.3k |
| AMERICAN CENTURY COMPANIES INC | Reduced | -515.1k |
| VANGUARD GROUP INC | Reduced | -359.7k |
| Invesco Ltd. | Reduced | -327.2k |
| Beryl Capital Management LLC | Sold out | -253.7k |
| ROYCE & ASSOCIATES LP | Reduced | -239.9k |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | -209.5k |
| DIMENSIONAL FUND ADVISORS LP | Reduced | -179.6k |
| SOROS CAPITAL MANAGEMENT LLC | Sold out | -171.4k |
Biggest calls
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC | New | $12.4m570.0k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $9.0m415.2k shares |
| SCOPUS ASSET MANAGEMENT, L.P. | New | $8.7m400.0k shares |
| BARCLAYS PLC | New | $4.0m185.0k shares |
| Caption Management, LLC | Added | $3.0m140.0k shares |
| JANE STREET GROUP, LLC | New | $2.6m117.3k shares |
| AYAL Capital Advisors Ltd | New | $2.4m111.0k shares |
| SIMPLEX TRADING, LLC | Added | $2.4m109.9k shares |
| GROUP ONE TRADING LLC | Added | $1.7m79.2k shares |
| AMERIPRISE FINANCIAL INC | New | $1.6m71.8k shares |
Biggest puts
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC | New | $11.7m538.0k shares |
| SCOPUS ASSET MANAGEMENT, L.P. | New | $10.9m500.0k shares |
| SIMPLEX TRADING, LLC | Added | $1.6m71.8k shares |
| K2 PRINCIPAL FUND, L.P. | New | $1.3m60.0k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | New | $1.2m54.0k shares |
| CITADEL ADVISORS LLC | Added | $737.7k33.9k shares |
| GROUP ONE TRADING LLC | New | $718.1k33.0k shares |
| JANE STREET GROUP, LLC | New | $483.1k22.2k shares |
| AMERIPRISE FINANCIAL INC | New | $104.4k4.8k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 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 Q1 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 |
|---|---|---|---|---|---|
| Q2 2023 | 0 | — | 0 | — | — |
| Q3 2023 | 0 | — | 2 | $221.2k | — |
| Q4 2023 | 0 | — | 0 | — | — |
| 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 | — | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2025-03-11 | Argo Laurie H Director | Bought | $89.7k4.0k shares |
| 2025-03-07 | Zartler William A CHAIRMAN AND CEO, director | Bought | $232.3k10.0k shares |
| 2025-03-06 | Zartler William A CHAIRMAN AND CEO, director | Bought | $240.7k10.0k shares |
| 2025-03-06 | TEAGUE AJ Director | Bought | $48.4k2.0k shares |
| 2025-03-06 | TEAGUE AJ Director | Bought | $48.0k2.0k shares |
| 2025-03-06 | BURKE JAMES R Director · Spouse | Bought | $19.4k800 shares |
| 2025-02-28 | TEAGUE AJ Director | Bought | $64.2k2.0k shares |
| 2025-02-27 | TEAGUE AJ Director | Bought | $64.8k2.0k 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, Q1 2025
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.00% of their portfolio | 6.6m $142.8m | Added +877.1k |
| Encompass Capital Advisors LLC 3.03% of their portfolio | 3.6m $79.0m | Added +1.3m |
| Driehaus Capital Management LLC 0.42% of their portfolio | 2.0m $44.1m | Added +1.5m |
| VANGUARD GROUP INC 0.00% of their portfolio | 1.6m $35.1m | Reduced -359.7k |
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC 1.48% of their portfolio | 1.4m $30.8m | Reduced -983.3k |
| WESTWOOD HOLDINGS GROUP INC 0.22% of their portfolio | 1.3m $29.3m | Added +366.7k |
| MILLENNIUM MANAGEMENT LLC 0.02% of their portfolio | 1.1m $24.3m | Added +846.7k |
| BRIGHTLINE CAPITAL MANAGEMENT, LLC 21.08% of their portfolio | 1.1m $24.3m | Added +3.0k |
| SIR Capital Management, L.P. 1.92% of their portfolio | 1.0m $21.9m | Added +475.1k |
| WELLINGTON MANAGEMENT GROUP LLP 0.00% of their portfolio | 992.6k $21.6m | Added +166.7k |
| CITADEL ADVISORS LLC 0.02% of their portfolio | 856.7k $18.6m | Added +638.6k |
| STATE STREET CORP 0.00% of their portfolio | 849.3k $18.5m | Added +232.2k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 779.6k $17.0m | Added +102.9k |
| EMERALD ADVISERS, LLC 0.68% of their portfolio | 698.0k $15.2m | Added +5.5k |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 686.9k $14.9m | Reduced -179.6k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 630.2k $13.7m | Added +326.6k |
| MORGAN STANLEY 0.00% of their portfolio | 602.5k $13.1m | Reduced -129.0k |
| SCOPUS ASSET MANAGEMENT, L.P. 0.41% of their portfolio | 520.7k $11.3m | New |
| ROYCE & ASSOCIATES LP 0.12% of their portfolio | 514.3k $11.2m | Reduced -239.9k |
| Aventail Capital Group, LP 0.54% of their portfolio | 500.8k $10.9m | Added +845 |
| GW&K Investment Management, LLC 0.09% of their portfolio | 433.7k $9.4m | Added +254.3k |
| T. Rowe Price Investment Management, Inc. 0.01% of their portfolio | 379.4k $8.3m | Reduced -2.1m |
| Sagefield Capital LP 0.97% of their portfolio | 370.4k $8.1m | Added +171.2k |
| OBERWEIS ASSET MANAGEMENT INC/ 0.39% of their portfolio | 360.0k $7.8m | New |
| PINNACLE ASSOCIATES LTD 0.11% of their portfolio | 357.7k $7.8m | Added +80.2k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 355.4k $7.7m | Added +42.8k |
| EMERALD MUTUAL FUND ADVISERS TRUST 0.53% of their portfolio | 341.9k $7.4m | Added +2.1k |
| TWO SIGMA INVESTMENTS, LP 0.02% of their portfolio | 332.9k $7.2m | Added +120.5k |
| GILDER GAGNON HOWE & CO LLC 0.08% of their portfolio | 296.8k $6.5m | New |
| Ballast Asset Management, LP 3.38% of their portfolio | 295.1k $6.4m | Added +4.4k |
| Balyasny Asset Management L.P. 0.02% of their portfolio | 288.8k $6.3m | New |
| Channing Capital Management, LLC 0.19% of their portfolio | 284.9k $6.2m | New |
| AYAL Capital Advisors Ltd 4.11% of their portfolio | 284.5k $6.2m | Reduced -40.8k |
| CenterBook Partners LP 0.39% of their portfolio | 278.3k $6.1m | Added +109.9k |
| K2 PRINCIPAL FUND, L.P. 0.90% of their portfolio | 271.0k $5.9m | Reduced -37.2k |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.15% of their portfolio | 267.2k $5.8m | Added +4.0k |
| Jump Financial, LLC 0.09% of their portfolio | 266.7k $5.8m | New |
| Stephens Investment Management Group LLC 0.08% of their portfolio | 265.7k $5.8m | Added +48.2k |
| KENNEDY CAPITAL MANAGEMENT LLC 0.14% of their portfolio | 264.8k $5.8m | Added +45.2k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 236.1k $5.1m | Added +4.0k |
| Meros Investment Management, LP 2.99% of their portfolio | 233.8k $5.1m | Reduced -127.9k |
| RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio | 220.5k $4.8m | Added +158.2k |
| UBS Group AG 0.00% of their portfolio | 218.8k $4.8m | Added +12.8k |
| J. Goldman & Co LP 0.17% of their portfolio | 218.2k $4.7m | New |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC 0.04% of their portfolio | 218.2k $4.7m | Added +13.7k |
| Uniplan Investment Counsel, Inc. 0.45% of their portfolio | 213.7k $4.7m | Reduced -52.1k |
| TWO SIGMA ADVISERS, LP 0.01% of their portfolio | 212.5k $4.6m | Added +21.7k |
| CONGRESS ASSET MANAGEMENT CO 0.03% of their portfolio | 201.3k $4.4m | Reduced -13.3k |
| Empowered Funds, LLC 0.06% of their portfolio | 198.6k $4.3m | Added +4.0k |
| GeoSphere Capital Management, LLC 4.85% of their portfolio | 190.9k $4.2m | New |
| Acuitas Investments, LLC 3.18% of their portfolio | 171.3k $3.7m | Unchanged |
| CITIGROUP INC 0.00% of their portfolio | 164.3k $3.6m | Added +129.3k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.01% of their portfolio | 163.8k $3.6m | Added +54.8k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.01% of their portfolio | 153.4k $3.3m | Added +85.4k |
| Universal- Beteiligungs- und Servicegesellschaft mbH 0.01% of their portfolio | 146.8k $3.2m | New |
| Quantbot Technologies LP 0.10% of their portfolio | 142.8k $3.1m | New |
| RITHOLTZ WEALTH MANAGEMENT 0.08% of their portfolio | 127.9k $2.8m | Added +15.0k |
| Hel Ved Capital Management Ltd 1.38% of their portfolio | 125.4k $2.7m | New |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 117.6k $2.6m | Added +65.5k |
| FIRST TRUST ADVISORS LP 0.00% of their portfolio | 117.0k $2.5m | Added +5.1k |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 113.7k $2.5m | Added +26 |
| Informed Momentum Co LLC 0.43% of their portfolio | 113.0k $2.5m | Reduced -86.0k |
| AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio | 100.2k $2.2m | Reduced -515.1k |
| Cubist Systematic Strategies, LLC 0.03% of their portfolio | 98.6k $2.1m | New |
| Kingsview Wealth Management, LLC 0.04% of their portfolio | 93.8k $2.0m | New |
| Point72 Asset Management, L.P. 0.01% of their portfolio | 93.7k $2.0m | New |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 90.4k $2.0m | Added +14.1k |
| CREDIT AGRICOLE S A 0.01% of their portfolio | 88.9k $1.9m | Added +11.2k |
| AE Wealth Management LLC 0.02% of their portfolio | 85.9k $1.9m | Added +35.3k |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 85.3k $1.9m | Added +44.7k |
| PDT Partners, LLC 0.13% of their portfolio | 85.0k $1.9m | Added +70.7k |
| Moody Aldrich Partners LLC 0.38% of their portfolio | 83.0k $1.8m | New |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 81.4k $1.8m | Reduced -109.8k |
| Aquatic Capital Management LLC 0.04% of their portfolio | 79.2k $1.7m | Added +76.2k |
| Squarepoint Ops LLC 0.00% of their portfolio | 78.3k $1.7m | Added +27.8k |
| Verition Fund Management LLC 0.01% of their portfolio | 78.1k $1.7m | Added +70.5k |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 77.9k $1.7m | Added +604 |
| Invesco Ltd. 0.00% of their portfolio | 77.6k $1.7m | Reduced -327.2k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 77.6k $1.7m | Reduced -86.0k |
| CASTLEARK MANAGEMENT LLC 0.06% of their portfolio | 77.0k $1.7m | Reduced -54.7k |
| STATE OF WISCONSIN INVESTMENT BOARD 0.00% of their portfolio | 76.6k $1.7m | Added +55.4k |
| BARCLAYS PLC 0.00% of their portfolio | 74.7k $1.6m | Added +32.9k |
| Nuveen, LLC 0.00% of their portfolio | 73.5k $1.6m | First filing |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 73.4k $1.6m | Reduced -2.1k |
| Swiss National Bank 0.00% of their portfolio | 66.3k $1.4m | New |
| Keeley-Teton Advisors, LLC 0.17% of their portfolio | 64.3k $1.4m | New |
| CLOUGH CAPITAL PARTNERS L P 0.17% of their portfolio | 60.3k $1.3m | Added +2.0k |
| Connor, Clark & Lunn Investment Management Ltd. 0.01% of their portfolio | 58.9k $1.3m | New |
| MARSHALL WACE, LLP 0.00% of their portfolio | 53.3k $1.2m | Added +45.9k |
| XTX Topco Ltd 0.06% of their portfolio | 51.4k $1.1m | Added +39.7k |
| Bryce Point Capital, LLC 0.84% of their portfolio | 46.5k $1.1m | New |
| Boston Partners 0.00% of their portfolio | 46.3k $1.0m | Reduced -15.8k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 44.2k $962.0k | Added +2.0k |
| HRT FINANCIAL LP 0.01% of their portfolio | 40.2k $873.0k | New |
| Phoenix Financial Ltd. 0.01% of their portfolio | 40.0k $875.4k | Added +3.7k |
| Dynamic Technology Lab Private Ltd 0.12% of their portfolio | 37.1k $807.0k | New |
| Retirement Planning Group, LLC 0.04% of their portfolio | 36.9k $802.0k | Added +175 |
| RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio | 36.8k $800.8k | Reduced -209.5k |
| Assenagon Asset Management S.A. 0.00% of their portfolio | 35.5k $772.5k | New |
| Creative Planning 0.00% of their portfolio | 34.9k $759.3k | Added +5.4k |