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SEI

Solaris Energy Infrastructure, Inc.

Company with tickers: SEI

CIK
1697500
CUSIP
83418M103
Shares Outstanding
58,402,338
Price History Institutional Holders Short Volume Short Interest Fails to Deliver Financials SEC Filings Earnings Calls Insider Trades Congressional Trades
Holders: 355
Total Value: $3,693,312,779
Total Shares: 65,356,804
Showing 1–100 of 370 holdings by value · page 1 of 4

Institutional Ownership Trend

25 quarters

Holder Concentration

Across 355 13F filers · Δ vs Dec 31, 2025
Top Holder
6.3%
Jun 2023 → Mar 2026 · range 6.3% – 15.6%
−0.1 pts
Top 5
20.9%
Jun 2023 → Mar 2026 · range 20.9% – 42.2%
−0.9 pts
Top 10
34.6%
Jun 2023 → Mar 2026 · range 34.3% – 61.7%
+0.3 pts
HHI
196
Jun 2023 → Mar 2026 · range 196 – 514
Broadly held −3

Quarterly Activity

vs Dec 31, 2025
New
89
Increased
124
Decreased
109
Sold Out
64
Unchanged
33
Holder count: +25
Institutional value: +19.0%
Shares held: -3.2%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP +1,056,722 2,511,232
Mega TWO SIGMA INVESTMENTS, LP +861,615 1,941,546
Mega JENNISON ASSOCIATES LLC +805,319 1,179,736
Large VOYA INVESTMENT MANAGEMENT LLC +718,310 790,645
Large Korea Investment CORP +643,414 670,514

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds
Mid SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC −1,082,269 2,554,055
Mega MORGAN STANLEY −972,361 188,312
Mid Encompass Capital Advisors LLC −809,543 1,750,000
Large Situational Awareness LP −760,949 1,105,551
Mega GOLDMAN SACHS GROUP INC −748,984 1,133,863

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD)
Large Situational Awareness Partners LP 1,105,551 $62,474,687
Mid AXIOM INVESTORS LLC /DE 231,300 $13,070,763
Large BROWN BROTHERS HARRIMAN & CO 210,000 $11,867,100
Mid PICTON MAHONEY ASSET MANAGEMENT 163,385 $9,232,886
Mid PALISADE CAPITAL MANAGEMENT, LP 155,499 $8,787,248

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD)
Large HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND 1,021,000 $46,935,370
Small Goodlander Investment Management, LLC 960,000 $44,131,200
Mid Lighthouse Investment Partners, LLC 627,500 $28,846,175
Large TWO SIGMA ADVISERS, LP 553,400 $25,439,798
Mid Progeny 3, Inc. 322,300 $14,816,131
100 of 100 shown
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Action
Mega BlackRock, Inc. $232,958,850 6.31% 4,122,436 View
Mega MILLENNIUM MANAGEMENT LLC $129,156,091 3.50% 2,285,544 View
Mega TWO SIGMA INVESTMENTS, LP $109,716,764 2.97% 1,941,546 View
Mega FMR LLC $105,253,321 2.85% 1,862,561 View
Mega VAN ECK ASSOCIATES CORP $99,997,044 2.71% 1,769,546 View
Mid Encompass Capital Advisors LLC $98,892,500 2.68% 1,750,000 View
Mid SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC $97,708,898 2.65% 1,729,055 View
Large Driehaus Capital Management LLC $92,008,112 2.49% 1,628,174 View
Mega JANE STREET GROUP, LLC $88,633,842 2.40% 1,568,463 View
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $83,996,464 2.27% 1,486,400 View
Large MARSHALL WACE, LLP $83,083,374 2.25% 1,470,242 View
Mega STATE STREET CORP $76,590,602 2.07% 1,355,346 View
Mid Advent International, L.P. $70,149,366 1.90% 1,241,362 View
Mega JENNISON ASSOCIATES LLC $66,666,880 1.81% 1,179,736 View
Mega PRINCIPAL FINANCIAL GROUP INC $64,684,283 1.75% 1,144,652 View
Mega GOLDMAN SACHS GROUP INC $64,074,596 1.73% 1,133,863 View
Mid Valiant Capital Management, L.P. $63,263,114 1.71% 1,119,503 View
Large Situational Awareness Partners LP $62,474,687 1.69% 1,105,551 View
Large Situational Awareness LP $62,474,687 1.69% 1,105,551 View
Mega GEODE CAPITAL MANAGEMENT, LLC $62,226,042 1.68% 1,101,151 View
Large GW&K Investment Management, LLC $59,995,141 1.62% 1,061,673 View
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $55,419,357 1.50% 980,700 View
Mega WELLINGTON MANAGEMENT GROUP LLP $52,506,942 1.42% 929,162 View
Large Value Aligned Research Advisors, LLC $50,688,622 1.37% 896,985 View
Mega DIMENSIONAL FUND ADVISORS LP $49,246,315 1.33% 871,462 View
Mid SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC $46,620,750 1.26% 825,000 View
Large Qube Research & Technologies Ltd $44,830,174 1.21% 793,314 View
Large VOYA INVESTMENT MANAGEMENT LLC $44,679,348 1.21% 790,645 View
Mega AMERIPRISE FINANCIAL INC $40,971,048 1.11% 725,023 View
Mega UBS Group AG $40,275,184 1.09% 712,709 View
Large Korea Investment CORP $37,890,746 1.03% 670,514 View
Mid Ranger Investment Management, L.P. $34,347,343 0.93% 607,810 View
Large WESTWOOD HOLDINGS GROUP INC $34,051,004 0.92% 602,566 View
Mid EMERALD ADVISERS, LLC $33,605,762 0.91% 594,687 View
Large Caption Management, LLC $31,363,050 0.85% 555,000 View
Mega Nuveen, LLC $30,812,584 0.83% 545,259 View
Mid OBERWEIS ASSET MANAGEMENT INC/ $30,057,047 0.81% 531,889 View
Mega CITADEL ADVISORS LLC $27,886,780 0.76% 493,484 View
Mega BARCLAYS PLC $25,429,500 0.69% 450,000 View
Mega DEUTSCHE BANK AG\ $25,367,336 0.69% 448,900 View
Mid KENNEDY CAPITAL MANAGEMENT LLC $25,040,202 0.68% 443,111 View
Large Assenagon Asset Management S.A. $24,407,968 0.66% 431,923 View
Mid GILDER GAGNON HOWE & CO LLC $23,057,379 0.62% 408,023 View
Mega FRANKLIN RESOURCES INC $22,327,720 0.60% 395,111 View
Mid CUSHING ASSET MANAGEMENT, LP dba NXG INVESTMENT MANAGEMENT $21,925,880 0.59% 388,000 View
Mega BNP PARIBAS ARBITRAGE, SA $21,809,243 0.59% 385,936 View
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $21,283,248 0.58% 376,628 View
Mega JANE STREET GROUP, LLC $18,631,347 0.50% 329,700 View
Large Point72 Asset Management, L.P. $18,561,274 0.50% 328,460 View
Mid ROYCE & ASSOCIATES LP $18,488,207 0.50% 327,167 View
Large Squarepoint Ops LLC $18,411,297 0.50% 325,806 View
Mid EMERALD MUTUAL FUND ADVISERS TRUST $17,788,330 0.48% 314,782 View
Mid Sagefield Capital LP $17,113,148 0.46% 302,834 View
Mega CITADEL ADVISORS LLC $16,919,094 0.46% 299,400 View
Large Balyasny Asset Management L.P. $16,228,033 0.44% 287,171 View
Mid Penn Capital Management Company, LLC $15,861,339 0.43% 280,682 View
Mega BARCLAYS PLC $15,855,236 0.43% 280,574 View
Mega JANE STREET GROUP, LLC $15,444,183 0.42% 273,300 View
Small AYAL Capital Advisors Ltd $15,189,888 0.41% 268,800 View
Mega BANK OF AMERICA CORP /DE/ $14,925,759 0.40% 264,126 View
Large SEI INVESTMENTS CO $14,794,712 0.40% 261,807 View
Mega NEUBERGER BERMAN GROUP LLC $14,561,496 0.39% 257,680 View
Large Russell Investments Group, Ltd. $14,558,555 0.39% 257,628 View
Large NEW YORK STATE COMMON RETIREMENT FUND $14,399,821 0.39% 254,819 View
Mega FIRST TRUST ADVISORS LP $14,063,078 0.38% 248,860 View
Large NOMURA ASSET MANAGEMENT INTERNATIONAL INC. $13,566,751 0.37% 240,077 View
Mid AXIOM INVESTORS LLC /DE $13,070,763 0.35% 231,300 View
Mega BANK OF MONTREAL /CAN/ $12,970,570 0.35% 229,527 View
Mid Stephens Investment Management Group LLC $12,877,442 0.35% 227,879 View
Mid No Street GP LP $12,714,750 0.34% 225,000 View
Large BESSEMER GROUP INC $12,478,872 0.34% 220,826 View
Mega Bank of New York Mellon Corp $12,117,267 0.33% 214,427 View
Large BANK OF NOVA SCOTIA $12,092,857 0.33% 213,995 View
Large BROWN BROTHERS HARRIMAN & CO $11,867,100 0.32% 210,000 View
Mid Jump Financial, LLC $11,009,673 0.30% 194,827 View
Large Trexquant Investment LP $10,677,903 0.29% 188,956 View
Mega MORGAN STANLEY $10,641,510 0.29% 188,312 View
Mega CITIGROUP INC $9,771,369 0.26% 172,914 View
Mid Aventail Capital Group, LP $9,263,910 0.25% 163,934 View
Mid SIR Capital Management, L.P. $9,262,780 0.25% 163,914 View
Mid PICTON MAHONEY ASSET MANAGEMENT $9,232,886 0.25% 163,385 View
Mid PALISADE CAPITAL MANAGEMENT, LP $8,787,248 0.24% 155,499 View
Large Banco Santander, S.A. $8,559,512 0.23% 151,469 View
Mid Channing Capital Management, LLC $8,431,574 0.23% 149,205 View
Mid CenterBook Partners LP $8,290,695 0.22% 146,712 View
Small Meros Investment Management, LP $8,124,499 0.22% 143,771 View
Small Uniplan Investment Counsel, Inc. $7,740,286 0.21% 136,972 View
Large O'SHAUGHNESSY ASSET MANAGEMENT, LLC $7,657,670 0.21% 135,510 View
Large Freestone Grove Partners LP $7,542,954 0.20% 133,480 View
Mid Ceredex Value Advisors LLC $7,479,098 0.20% 132,350 View
Large Universal- Beteiligungs- und Servicegesellschaft mbH $7,445,362 0.20% 131,753 View
Mega WELLS FARGO & COMPANY/MN $7,436,150 0.20% 131,590 View
Mid BW Gestao de Investimentos Ltda. $6,941,236 0.19% 122,832 View
Mid PINNACLE ASSOCIATES LTD $6,936,489 0.19% 122,748 View
Small HALLSTATT ADVISORS L.P. $6,793,010 0.18% 120,209 View
Mega CITADEL ADVISORS LLC $6,707,737 0.18% 118,700 View
Small Lisanti Capital Growth, LLC $6,629,470 0.18% 117,315 View
Small Ballast Asset Management, LP $6,547,870 0.18% 115,871 View
Large CREDIT AGRICOLE S A $6,459,375 0.17% 114,305 View
Small Informed Momentum Co LLC $6,411,568 0.17% 113,459 View
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