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Solaris Energy Infrastructure, Inc.

SEI
Exchange
NYSE
Industry
Oil & Gas Field Machinery & Equipment
SEC CIK
0001697500

In the last 90 days, Solaris Energy Infrastructure, Inc. insiders filed 1 open-market purchase and 0 sales; 433 institutions reported holding it in 13F filings for Q2 2026, worth $5.71B in total; no superinvestor holds it.

13F holders, Q4 2025

Institutional positions in Solaris Energy Infrastructure, Inc. as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
335
+69 vs. Q3 2025
Shares held
67.6M
+12.6M (+22.9%) vs. Q3 2025
Total value
$3.11B
+$909.2M (+41.4%) vs. Q3 2025
New holders
102
124 more added
Sold out
33
85 more reduced

6 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting SEI on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ4 2025: 335 institutions
Q1 2021: 112 institutionsQ2 2021: 111 institutionsQ3 2021: 107 institutionsQ4 2021: 108 institutionsQ1 2022: 121 institutionsQ2 2022: 134 institutionsQ3 2022: 128 institutionsQ4 2022: 128 institutionsQ1 2023: 117 institutionsQ2 2023: 100 institutionsQ3 2023: 119 institutionsQ4 2023: 140 institutionsQ1 2024: 132 institutionsQ2 2024: 129 institutionsQ3 2024: 135 institutionsQ4 2024: 179 institutionsQ1 2025: 200 institutionsQ2 2025: 213 institutionsQ3 2025: 272 institutionsQ4 2025: 335 institutionsQ1 2026: 363 institutionsQ2 2026: 433 institutions
Value heldQ4 2025: $3.11B
Q1 2021: $282.7MQ2 2021: $224.0MQ3 2021: $184.2MQ4 2021: $157.4MQ1 2022: $287.5MQ2 2022: $267.4MQ3 2022: $224.7MQ4 2022: $239.4MQ1 2023: $196.4MQ2 2023: $182.1MQ3 2023: $230.1MQ4 2023: $191.7MQ1 2024: $214.8MQ2 2024: $202.4MQ3 2024: $304.9MQ4 2024: $1.01BQ1 2025: $890.9MQ2 2025: $1.35BQ3 2025: $2.21BQ4 2025: $3.11BQ1 2026: $3.69BQ2 2026: $5.71B
Institutions holding SEI and their total value by quarter
QuarterHoldersValue
Q2 2026433$5.71B
Q1 2026363$3.69B
Q4 2025335$3.11B
Q3 2025272$2.21B
Q2 2025213$1.35B
Q1 2025200$890.9M
Q4 2024179$1.01B
Q3 2024135$304.9M
Q2 2024129$202.4M
Q1 2024132$214.8M
Q4 2023140$191.7M
Q3 2023119$230.1M
Q2 2023100$182.1M
Q1 2023117$196.4M
Q4 2022128$239.4M
Q3 2022128$224.7M
Q2 2022134$267.4M
Q1 2022121$287.5M
Q4 2021108$157.4M
Q3 2021107$184.2M
Q2 2021111$224.0M
Q1 2021112$282.7M

Institutions, Q4 2025

Shares, value and share of portfolio for each institution holding Solaris Energy Infrastructure, Inc.; share changes are against Q3 2025.

Institutions holding SEI in Q4 2025
InstitutionSharesValue% of portfolioChange in sharesAction
BlackRock, Inc.4,311,968$198.2M0.00%−540,516−11.1%Reduced
Vanguard Group Inc2,913,632$133.9M0.00%+248,762+9.3%Added
Encompass Capital Advisors LLC2,559,543$117.7M5.63%−360,043−12.3%Reduced
FMR LLC2,289,564$105.3M0.01%+52,127+2.3%Added
Morgan Stanley2,091,364$96.1M0.01%+199,825+10.6%Added
Summit Partners Public Asset Management, LLC2,076,324$95.4M2.68%+280,014+15.6%Added
Goldman Sachs Group Inc1,882,847$86.6M0.01%+186,366+11.0%Added
Situational Awareness LP1,866,500$85.8M2.19%+716,200+62.3%Added
Millennium Management LLC1,845,050$84.8M0.06%+1,042,902+130.0%Added
Jane Street Group, LLC1,641,016$75.4M0.09%+596,974+57.2%Added
Principal Financial Group Inc1,466,343$67.4M0.03%+1,400,311+2,120.7%Added
Advent International Corp1,263,809$58.1M1.20%+256,909+25.5%Added
Wellington Management Group LLP1,247,663$57.4M0.01%+25,121+2.1%Added
Van Eck Associates Corp1,241,719$57.1M0.05%−54,179−4.2%Reduced
Driehaus Capital Management LLC1,227,721$56.4M0.38%+266,174+27.7%Added
State Street Corp1,174,197$54.0M0.00%+130,576+12.5%Added
Citadel Advisors LLC1,164,500$53.5M0.04%+978,183+525.0%Added
Qube Research & Technologies Ltd1,154,864$53.1M0.08%+874,762+312.3%Added
GW&K Investment Management, LLC1,082,458$49.8M0.43%−95,372−8.1%Reduced
Two Sigma Investments, LP1,079,931$49.6M0.07%+72,611+7.2%Added
Geode Capital Management, LLC1,023,173$47.0M0.00%+111,971+12.3%Added
Healthcare of Ontario Pension Plan Trust Fund1,021,000$46.9M0.08%+1,021,000New
Value Aligned Research Advisors, LLC975,939$44.9M0.92%+975,939New
Goodlander Investment Management, LLC960,000$44.1M16.86%+310,000+47.7%Added
Marshall Wace, LLP838,110$38.5M0.04%+305,572+57.4%Added
Ceredex Value Advisors LLC812,901$37.4M1.12%−63,999−7.3%Reduced
Valiant Capital Management, L.P.734,499$33.8M2.84%+734,499New
Dimensional Fund Advisors LP728,489$33.5M0.01%+151,157+26.2%Added
Nuveen, LLC716,966$33.0M0.01%+644,466+888.9%Added
Westwood Holdings Group Inc.689,768$31.7M0.26%−171,353−19.9%Reduced
UBS Group AG642,245$29.5M0.01%+51,502+8.7%Added
Kennedy Capital Management, Inc.629,747$28.9M0.61%+312,013+98.2%Added
Emerald Advisers, LLC626,692$28.8M0.89%+9,973+1.6%Added
Ranger Investment Management, L.P.623,213$28.6M1.97%+197,073+46.2%Added
Two Sigma Advisers, LP553,400$25.4M0.05%+283,600+105.1%Added
Voya Investment Management LLC476,476$21.9M0.02%−54,547−10.3%Reduced
Deutsche Bank AG397,356$18.3M0.01%+344,996+658.9%Added
Sagefield Capital LP396,471$18.2M1.54%+93,705+30.9%Added
Charles Schwab Investment Management Inc376,277$17.3M0.00%+37,384+11.0%Added
No Street GP LP375,000$17.2M1.16%+375,000New
Jennison Associates LLC374,417$17.2M0.01%−12,030−3.1%Reduced
Oberweis Asset Management Inc366,900$16.9M0.62%00.0%Unchanged
Northern Trust Corp360,751$16.6M0.00%+26,753+8.0%Added
CenterBook Partners LP356,472$16.4M0.80%−58,981−14.2%Reduced
Royce & Associates LP331,965$15.3M0.15%−162,603−32.9%Reduced
Progeny 3, Inc.322,300$14.8M0.80%00.0%Unchanged
Barclays PLC322,121$14.8M0.01%+251,360+355.2%Added
Price T Rowe Associates Inc321,448$14.8M0.00%−406,925−55.9%Reduced
Tudor Investment Corp Et Al320,341$14.7M0.08%−147,846−31.6%Reduced
Citigroup Inc315,476$14.5M0.01%+203,626+182.1%Added
Emerald Mutual Fund Advisers Trust312,027$14.3M0.70%+3,229+1.0%Added
Balyasny Asset Management LLC310,988$14.3M0.03%+310,988New
AYAL Capital Advisors Ltd309,121$14.2M7.78%+77,740+33.6%Added
Aventail Capital Group, LP300,069$13.8M0.79%+33,802+12.7%Added
Hiddenite Capital Partners LP300,000$13.8M7.12%−50,000−14.3%Reduced
Penn Capital Management Co Inc288,343$13.3M1.06%+270,966+1,559.3%Added
BNP Paribas Arbitrage, SA286,879$13.2M0.01%+279,987+4,062.5%Added
Bessemer Group Inc280,582$12.9M0.02%+277,947+10,548.3%Added
Lighthouse Investment Partners, LLC277,500$12.8M0.42%+247,400+821.9%Added
Russell Investments Group, Ltd.268,118$12.3M0.01%+31,710+13.4%Added
Bank of Nova Scotia267,078$12.3M0.02%+267,078New
Bank of America Corp261,102$12.0M0.00%+139,974+115.6%Added
Ratan Capital Management LP250,095$11.5M3.16%+250,095New
Brightline Capital Management, LLC250,000$11.5M4.65%−753,000−75.1%Reduced
Nomura Asset Management International Inc.249,887$11.5M0.02%+249,887New
Bank of Montreal249,178$11.5M0.00%+243,850+4,576.8%Added
ExodusPoint Capital Management, LP249,157$11.5M0.13%+160,905+182.3%Added
Stephens Investment Management Group LLC247,578$11.4M0.15%−18,505−7.0%Reduced
Gilder Gagnon Howe & Co LLC244,045$11.2M0.12%−16,408−6.3%Reduced
First Trust Advisors LP237,116$10.9M0.01%+199,785+535.2%Added
T. Rowe Price Investment Management, Inc.230,375$10.6M0.01%+230,375New
Assenagon Asset Management S.A.227,542$10.5M0.02%−168,012−42.5%Reduced
Wealth High Governance Asset Management Ltda.213,635$9.82M1.76%+213,635New
Pinnacle Associates Ltd213,282$9.80M0.13%−141,906−40.0%Reduced
Freestone Grove Partners LP213,140$9.80M0.07%+185,019+657.9%Added
Jump Financial, LLC208,990$9.61M0.12%−30,910−12.9%Reduced
SG Americas Securities, LLC206,130$9.48M0.01%+192,761+1,441.9%Added
Channing Capital Management, LLC205,290$9.44M0.24%−62,541−23.4%Reduced
Bank of New York Mellon Corp203,652$9.36M0.00%−104,577−33.9%Reduced
New York State Common Retirement Fund202,828$9.32M0.01%+189,711+1,446.3%Added
Banco Santander, S.A.174,500$8.02M0.06%+174,500New
Neuberger Berman Group LLC169,250$7.78M0.01%+169,250New
Alliancebernstein L.P.165,597$7.61M0.00%+130,335+369.6%Added
SIR Capital Management, L.P.164,959$7.58M0.84%−598,935−78.4%Reduced
Meros Investment Management, LP164,324$7.55M3.00%−127,414−43.7%Reduced
Castleark Management LLC150,996$6.94M0.20%−42,930−22.1%Reduced
O'Shaughnessy Asset Management, LLC148,902$6.85M0.04%−54,227−26.7%Reduced
Universal- Beteiligungs- und Servicegesellschaft mbH144,365$6.64M0.01%+65,908+84.0%Added
Uniplan Investment Counsel, Inc.144,375$6.64M0.67%−39,418−21.4%Reduced
Verition Fund Management LLC141,949$6.53M0.04%+106,391+299.2%Added
SEI Investments Co138,229$6.35M0.01%+104,575+310.7%Added
LMR Partners LLP136,931$6.29M0.06%+105,395+334.2%Added
BW Gestao de Investimentos Ltda.136,365$6.27M0.22%+136,365New
Wealth High Governance Capital Ltda136,365$6.27M1.84%+136,365New
Alyeska Investment Group, L.P.134,590$6.19M0.02%+134,590New
Susquehanna International Group, LLP133,810$6.15M0.01%+55,853+71.6%Added
Wells Fargo & Company132,040$6.07M0.00%+37,465+39.6%Added
GeoSphere Capital Management, LLC129,472$5.95M4.11%−10,000−7.2%Reduced
EAM Investors, LLC122,958$5.65M0.63%+101,697+478.3%Added
Corigliano Investment Advisers, LLC120,400$5.53M1.97%+120,400New