Solaris Energy Infrastructure, Inc. - Class A Common Stock, $0.01 par value (SEI)

Historical Holders from Q2 2017 to Q3 2025

Symbol
SEI on NYSE
Type / Class
Equity / Class A Common Stock, $0.01 par value
Shares outstanding
48,893,412
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares, excl. options
55,305,273
Holdings value
$2,210,406,155
% of all portfolios
0.01%
Number of holders
270
Number of buys
166
Number of sells
-105
Average buys %
+0%
Average sells %
-0%
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of Solaris Energy Infrastructure, Inc. - Class A Common Stock, $0.01 par value (SEI)

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
Yorktown Energy Partners X, L.P. 16.05% $146,752,521 7,079,234 Yorktown Energy Partners X, L.P. 31 Dec 2024
Zartler William A 12.1% $105,832,413 5,105,278 William A. Zartler 31 Dec 2024
Solaris Energy Capital, LLC 8.5% $72,834,772 3,513,496 Solaris Energy Capital, LLC 31 Dec 2024
Encompass Capital Advisors LLC 6.55% -30% $116,695,852 -$28,354,358 2,919,586 -20% Encompass Capital Advisors LLC 30 Sep 2025
JANE STREET GROUP, LLC 5.1% $117,920,642 2,493,564 JANE STREET GROUP, LLC 01 Dec 2025
VANGUARD GROUP INC 6.04% +45% $69,051,618 +$23,469,922 2,440,849 +51% The Vanguard Group 30 Jun 2025
FMR LLC 5.2% $92,725,827 2,319,885 FMR LLC 30 Sep 2025
BlackRock Portfolio Management LLC 4.9% -40% $86,965,247 -$50,313,357 2,175,763 -37% BlackRock Portfolio Management LLC 30 Sep 2025
J Turbines, Inc. 3.1% -79% $65,981,230 -$129,480,000 2,114,783 -66% J Turbines, Inc. 28 Jul 2025
BlackRock, Inc. 5.6% -65% $42,820,012 -$74,998,321 2,065,606 -64% BlackRock, Inc. 31 Jan 2025
KTR Management Company, LLC 3.94% -36% $79,940,000 -$84,527,877 2,000,000 -51% KTR Management Company, LLC 04 Nov 2025
SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC 4.03% -24% $71,798,511 -$7,575,674 1,796,310 -9.5% Summit Partners Public Asset Management, LLC 30 Sep 2025
DRIEHAUS CAPITAL MANAGEMENT LLC 2.16% -63% $38,433,034 -$42,522,884 961,547 -53% DRIEHAUS CAPITAL MANAGEMENT LLC 30 Sep 2025
DIMENSIONAL FUND ADVISORS LP 2.3% $17,962,338 866,490 Dimensional Fund Advisors LP 31 Dec 2024
MILLENNIUM MANAGEMENT LLC 1.6% -68% $18,313,899 -$39,209,685 647,363 -68% Millennium Management LLC 30 Jun 2025
T. Rowe Price Investment Management, Inc. 1% -81% $7,864,941 -$43,714,263 379,399 -85% T. Rowe Price Investment Management, Inc. 31 Mar 2025

Institutional Holders of Solaris Energy Infrastructure, Inc. - Class A Common Stock, $0.01 par value (SEI)

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price Investors
2025 Q3 55,305,273 $2,210,406,155 +$322,737,171 $39.97 270
2025 Q2 47,822,065 $1,352,942,005 +$209,556,312 $28.29 210
2025 Q1 40,959,060 $891,389,031 +$125,489,923 $21.76 199
2024 Q4 35,026,280 $1,008,015,576 +$330,954,907 $28.78 176
2024 Q3 23,891,385 $304,882,226 +$21,556,997 $12.76 131
2024 Q2 23,566,847 $202,202,624 -$10,503,128 $8.58 125
2024 Q1 24,776,940 $214,813,351 +$8,135,791 $8.67 131
2023 Q4 24,084,675 $191,738,828 +$18,784,861 $7.96 138
2023 Q3 21,580,847 $230,088,306 -$4,322,692 $10.66 117
2023 Q2 21,865,662 $182,138,714 -$9,893,331 $8.33 99
2023 Q1 23,009,966 $196,422,104 -$9,801,327 $8.54 116
2022 Q4 24,123,730 $239,546,440 +$1,380,820 $9.93 124
2022 Q3 24,016,823 $224,792,939 -$6,310,753 $9.36 124
2022 Q2 24,511,101 $267,404,973 +$26,468,188 $10.88 128
2022 Q1 25,512,174 $287,543,035 +$27,999,891 $11.29 119
2021 Q4 24,028,641 $157,347,942 -$9,728,057 $6.55 106
2021 Q3 22,086,837 $184,043,705 -$8,432,086 $8.34 103
2021 Q2 23,235,974 $226,483,516 -$1,340,673 $9.74 110
2021 Q1 23,036,908 $282,690,714 -$11,838,374 $12.27 112
2020 Q4 24,269,365 $198,356,824 +$7,469,199 $8.14 105
2020 Q3 23,045,511 $146,354,939 -$12,723,493 $6.34 103
2020 Q2 24,838,556 $184,077,094 -$13,349,950 $7.42 117
2020 Q1 26,961,050 $141,451,139 -$42,008,927 $5.25 116
2019 Q4 32,030,580 $448,434,684 +$6,768,699 $14 134
2019 Q3 31,750,229 $426,194,375 -$5,644,124 $13.42 122
2019 Q2 31,847,359 $477,016,506 +$24,771,910 $14.98 138
2019 Q1 30,115,077 $495,370,281 +$14,865,030 $16.44 117
2018 Q4 29,290,558 $354,114,534 -$176,798,425 $12.09 103
2018 Q3 36,963,944 $698,231,737 +$17,092,508 $18.89 107
2018 Q2 36,491,754 $521,298,878 +$19,334,857 $14.29 117
2018 Q1 34,777,544 $575,921,448 +$83,458,284 $16.56 116
2017 Q4 29,647,208 $634,773,241 +$108,694,736 $21.41 99
2017 Q3 24,753,743 $431,482,203 -$2,541,839 $17.43 67
2017 Q2 25,247,901 $291,103,222 +$291,103,222 $11.53 52