Solaris Energy Infrastructure, Inc. (SEI) — Institutional Holders, Q2 2026

456 institutional investment managers reported a SEI position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $7.1B. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 1 to 100. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.

← SEI stock profile

SEI in Q2 2026: what funds did

Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.

New positions

115

Added to

161

Trimmed

134

Sold out

Biggest buyers

Clearbridge InvestmentsAdded · +1,026,595 sh+$82.6M
Encompass Capital AdvisorsAdded · +769,604 sh+$61.9M
Alyeska Investment Group, L.P.New · +761,755 sh+$61.3M
PRICE T ROWE ASSOCIATESAdded · +747,004 sh+$60.1M
Neuberger Berman GroupAdded · +669,742 sh+$53.9M

Biggest sellers

JANE STREET GROUPTrimmed · -1,518,145 sh-$122.1M
MARSHALL WACE, LLPTrimmed · -1,038,371 sh-$83.5M
Value Aligned Research AdvisorsSold out · -896,985 sh-$72.2M
VAN ECK ASSOCIATESTrimmed · -475,786 sh-$38.3M
Assenagon Asset Management S.A.Trimmed · -352,329 sh-$28.3M

SEI 13F holders ranked 1–100 of 456

Institutional investors reporting a position in Solaris Energy Infrastructure, Inc. on SEC Form 13F-HR for Q2 2026, ranked by reported value.
#	Institution	Shares	Value	% of portfolio	QoQShares vs Q1 2026
1	BlackRock#1 · 120,524,415 sh	120,524,415	$606.3M	<0.01%	-25.0%
2	LINDEN ADVISORS#2 · 286,495,000 sh	286,495,000	$561.6M	2.91%	+18.2%
3	VOYA INVESTMENT MANAGEMENT#3 · 141,874,949 sh	141,874,949	$276.0M	0.24%	-2.3%
4	Encompass Capital Advisors#4 · 2,519,604 sh	2,519,604	$202.7M	7.21%	+44.0%
5	VANGUARD CAPITAL MANAGEMENT#5 · 2,447,630 sh	2,447,630	$196.9M	<0.01%	+20.0%
6	MORGAN STANLEY#6 · 4,356,283 sh	4,356,283	$166.7M	<0.01%	-57.6%
7	TWO SIGMA INVESTMENTS#7 · 1,979,861 sh	1,979,861	$159.3M	0.12%	-32.7%
8	STATE STREET#8 · 21,137,464 sh	21,137,464	$151.3M	<0.01%	+23.2%
9	FMR#9 · 11,418,402 sh	11,418,402	$145.9M	<0.01%	+7.8%
10	SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT#10 · 1,692,838 sh	1,692,838	$136.2M	2.39%	-2.1%
11	JENNISON ASSOCIATES#11 · 1,691,193 sh	1,691,193	$136.1M	0.08%	+43.4%
12	Valiant Capital Management, L.P.#12 · 1,604,346 sh	1,604,346	$129.1M	5.21%	+43.3%
13	DRIEHAUS CAPITAL MANAGEMENT#13 · 1,584,985 sh	1,584,985	$127.5M	0.74%	-2.7%
14	VAN ECK ASSOCIATES#14 · 1,478,669 sh	1,478,669	$119.0M	0.07%	-24.3%
15	GEODE CAPITAL MANAGEMENT#15 · 1,352,450 sh	1,352,450	$108.8M	<0.01%	+22.8%
16	GOLDMAN SACHS GROUP#16 · 1,892,618 sh	1,892,618	$103.9M	<0.01%	+8.3%
17	AMERIPRISE FINANCIAL#17 · 7,144,927 sh	7,144,927	$101.8M	0.02%	-25.8%
18	BNP PARIBAS FINANCIAL MARKETS#18 · 22,107,367 sh	22,107,367	$96.8M	0.03%	+25.1%
19	Clearbridge Investments#19 · 1,138,159 sh	1,138,159	$91.6M	0.08%	+920.2%
20	Situational Awareness#20 · 1,129,621 sh	1,129,621	$90.9M	0.45%	+2.2%
21	Korea Investment#21 · 1,096,000 sh	1,096,000	$88.2M	0.17%	+63.5%
22	ADVENT INTERNATIONAL, L.P.#22 · 1,094,427 sh	1,094,427	$88.1M	0.50%	-11.8%
23	PRINCIPAL FINANCIAL GROUP#23 · 1,072,200 sh	1,072,200	$86.3M	0.04%	-6.3%
24	GW&K Investment Management#24 · 1,038,119 sh	1,038,119	$83.5M	0.65%	-2.2%
25	WELLINGTON MANAGEMENT GROUP LLP#25 · 3,737,771 sh	3,737,771	$75.4M	0.01%	-57.2%
26	Neuberger Berman Group#26 · 927,422 sh	927,422	$74.6M	0.05%	+259.9%
27	DIMENSIONAL FUND ADVISORS#27 · 868,808 sh	868,808	$69.9M	0.01%	-0.3%
28	UBS Group AG#28 · 872,686 sh	872,686	$65.0M	<0.01%	+22.4%
29	PRICE T ROWE ASSOCIATES#29 · 798,365 sh	798,365	$64.2M	<0.01%	+1454.4%
30	VANGUARD PORTFOLIO MANAGEMENT#30 · 794,184 sh	794,184	$63.9M	<0.01%	+31.0%
31	Alyeska Investment Group, L.P.#31 · 761,755 sh	761,755	$61.3M	0.16%	New
32	EMERALD ADVISERS#32 · 640,616 sh	640,616	$51.5M	1.21%	+7.7%
33	DEUTSCHE BANK AG\#33 · 989,809 sh	989,809	$51.1M	0.01%	+21.9%
34	WESTWOOD GROUP#34 · 625,948 sh	625,948	$50.4M	0.38%	+3.9%
35	Qube Research & Technologies Ltd#35 · 612,638 sh	612,638	$49.3M	0.05%	-22.8%
36	HEALTHCARE OF ONTARIO PENSION PLAN FUND#36 · 15,006,687 sh	15,006,687	$49.0M	0.07%	0.0%
37	JPMORGAN CHASE#37 · 14,325,417 sh	14,325,417	$47.9M	<0.01%	-10.9%
38	Ranger Investment Management, L.P.#38 · 583,733 sh	583,733	$47.0M	2.97%	-4.0%
39	FRANKLIN RESOURCES#39 · 567,173 sh	567,173	$45.6M	<0.01%	+43.5%
40	OBERWEIS ASSET MANAGEMENT#40 · 564,581 sh	564,581	$45.4M	0.94%	+6.1%
41	Nuveen#41 · 558,368 sh	558,368	$44.9M	0.01%	-96.5%
42	BANK OF NOVA SCOTIA#42 · 3,463,659 sh	3,463,659	$42.2M	0.06%	+56.4%
43	Greenhouse Funds LLLP#43 · 495,053 sh	495,053	$39.8M	2.04%	New
44	BANK OF AMERICA#44 · 11,006,049 sh	11,006,049	$39.5M	<0.01%	+22.3%
45	STEADFAST CAPITAL MANAGEMENT#45 · 481,901 sh	481,901	$38.8M	1.19%	New
46	NORTHERN#46 · 479,713 sh	479,713	$38.6M	<0.01%	+22.9%
47	BANK OF MONTREAL#47 · 7,191,464 sh	7,191,464	$38.6M	0.01%	-0.4%
48	CHARLES SCHWAB INVESTMENT MANAGEMENT#48 · 455,828 sh	455,828	$36.7M	<0.01%	+21.0%
49	MARSHALL WACE, LLP#49 · 431,871 sh	431,871	$34.7M	0.03%	-70.6%
50	CUSHING ASSET MANAGEMENT, dba NXG INVESTMENT MANAGEMENT#50 · 418,000 sh	418,000	$33.6M	—	+7.7%
51	EMERALD MUTUAL FUND ADVISERS#51 · 405,313 sh	405,313	$32.6M	1.15%	+28.8%
52	KENNEDY CAPITAL MANAGEMENT#52 · 404,104 sh	404,104	$32.5M	0.58%	-8.8%
53	GILDER GAGNON HOWE#53 · 402,996 sh	402,996	$32.4M	0.33%	-1.2%
54	VANGUARD FIDUCIARY#54 · 391,319 sh	391,319	$31.5M	<0.01%	+22.6%
55	Bank of New York Mellon#55 · 533,805 sh	533,805	$31.1M	<0.01%	+14.9%
56	BROWN BROTHERS HARRIMAN#56 · 385,799 sh	385,799	$31.0M	0.14%	+83.7%
57	MILLENNIUM MANAGEMENT#57 · 5,002,725 sh	5,002,725	$29.5M	0.01%	-28.7%
58	CONGRESS ASSET MANAGEMENT#58 · 344,935 sh	344,935	$27.8M	—	+8217.7%
59	ROYCE & ASSOCIATES#59 · 333,547 sh	333,547	$26.8M	0.22%	+2.0%
60	BARCLAYS PLC#60 · 317,996 sh	317,996	$25.6M	<0.01%	+13.3%
61	AXIOM INVESTORS#61 · 308,860 sh	308,860	$24.9M	0.21%	+33.5%
62	TORTOISE CAPITAL ADVISORS, L.L.C.#62 · 293,332 sh	293,332	$23.6M	0.24%	New
63	Wealth High Governance Asset Management Ltda.#63 · 289,518 sh	289,518	$23.3M	2.48%	+177.5%
64	Point72 Asset Management, L.P.#64 · 289,247 sh	289,247	$23.3M	0.03%	-11.9%
65	Jump Financial#65 · 285,962 sh	285,962	$23.0M	0.18%	-94.5%
66	CITADEL ADVISORS#66 · 4,395,383 sh	4,395,383	$22.6M	<0.01%	+790.7%
67	NOMURA ASSET MANAGEMENT INTERNATIONAL#67 · 276,330 sh	276,330	$22.2M	0.03%	+15.1%
68	AGF MANAGEMENT LTD#68 · 1,255,789 sh	1,255,789	$22.2M	0.09%	+25.6%
69	RENAISSANCE TECHNOLOGIES#69 · 273,400 sh	273,400	$22.0M	0.03%	New
70	Sagefield Capital#70 · 272,202 sh	272,202	$21.9M	1.62%	-10.1%
71	Goodlander Investment Management#71 · 270,000 sh	270,000	$21.7M	6.56%	New
72	NEW YORK STATE COMMON RETIREMENT FUND#72 · 268,332 sh	268,332	$21.6M	0.03%	+5.3%
73	Russell Investments Group, Ltd.#73 · 516,462 sh	516,462	$21.1M	0.02%	-20.6%
74	SCHRODER INVESTMENT MANAGEMENT GROUP#74 · 12,307,499 sh	12,307,499	$21.1M	0.01%	-0.3%
75	SG Americas Securities#75 · 169,047 sh	169,047	$19.8M	0.01%	+202.7%
76	LBP AM SA#76 · 245,587 sh	245,587	$19.8M	0.20%	New
77	Calamos Advisors#77 · 12,145,000 sh	12,145,000	$19.7M	0.07%	0.0%
78	ROYAL BANK OF CANADA#78 · 6,843,848 sh	6,843,848	$19.6M	<0.01%	+6964.8%
79	FIRST ADVISORS#79 · 237,452 sh	237,452	$19.1M	0.01%	-4.6%
80	Universal- Beteiligungs- und Servicegesellschaft mbH#80 · 5,166,603 sh	5,166,603	$18.7M	0.03%	-2.3%
81	LPL Financial#81 · 230,390 sh	230,390	$18.5M	<0.01%	+104.7%
82	Penn Capital Management Company#82 · 224,485 sh	224,485	$18.1M	1.15%	-20.0%
83	Stephens Investment Management Group#83 · 221,900 sh	221,900	$17.9M	0.19%	-2.6%
84	Schonfeld Strategic Advisors#84 · 209,131 sh	209,131	$16.8M	0.06%	+1397.0%
85	TimesSquare Capital Management#85 · 198,051 sh	198,051	$15.9M	0.23%	New
86	CITIGROUP#86 · 194,498 sh	194,498	$15.6M	<0.01%	+12.5%
87	BESSEMER GROUP#87 · 185,181 sh	185,181	$14.9M	0.02%	-16.1%
88	WELLS FARGO & COMPANY#88 · 1,377,567 sh	1,377,567	$14.3M	<0.01%	+946.9%
89	Zweig-DiMenna Associates#89 · 172,650 sh	172,650	$13.9M	1.26%	+263.5%
90	BWCP#90 · 172,215 sh	172,215	$13.9M	1.98%	New
91	Invesco Ltd.#91 · 3,493,693 sh	3,493,693	$13.1M	<0.01%	-12.8%
92	SEI INVESTMENTS#92 · 162,022 sh	162,022	$13.0M	0.01%	-38.1%
93	SSI INVESTMENT MANAGEMENT#93 · 7,996,000 sh	7,996,000	$13.0M	0.76%	+0.1%
94	K2 PRINCIPAL FUND, L.P.#94 · 8,000 sh	8,000	$13.0M	0.95%	-33.3%
95	Squarepoint Ops#95 · 158,270 sh	158,270	$12.7M	0.01%	-51.4%
96	PICTON MAHONEY ASSET MANAGEMENT#96 · 155,680 sh	155,680	$12.5M	0.09%	-4.7%
97	No Street GP#97 · 155,000 sh	155,000	$12.5M	0.75%	-31.1%
98	Ceredex Value Advisors#98 · 154,500 sh	154,500	$12.4M	0.35%	+16.7%
99	VOLORIDGE INVESTMENT MANAGEMENT#99 · 151,536 sh	151,536	$12.2M	0.05%	+142.0%
100	BOUSSARD & GAVAUDAN GESTION SAS#100 · 7,500 sh	7,500	$12.2M	0.61%	—

Funds that sold out of SEI in Q2 2026 (41)

Held SEI at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.

Institutions that held SEI in Q1 2026 and reported no position in Q2 2026.
Institution	Shares sold	Value in Q1 2026
Value Aligned Research Advisors896,985 sh	896,985	$50.7M
Weiss Asset Management13,600,000 sh	13,600,000	$17.0M
WHITEBOX ADVISORS5,000,000 sh	5,000,000	$6.2M
Ratan Capital Management110,046 sh	110,046	$6.2M
ExodusPoint Capital Management103,701 sh	103,701	$5.9M
COHEN & STEERS98,322 sh	98,322	$5.6M
MIRABELLA FINANCIAL SERVICES LLP56,957 sh	56,957	$3.2M
LMR Partners LLP39,083 sh	39,083	$2.2M
BAMCO38,970 sh	38,970	$2.2M
Rokos Capital Management LLP33,613 sh	33,613	$1.9M
RWC Asset Management LLP1,486,000 sh	1,486,000	$1.9M
Virtu Financial26,078 sh	26,078	$1.5M
Precision Wealth Strategies21,330 sh	21,330	$1.2M
WINTON GROUP Ltd17,896 sh	17,896	$1.0M
VAN DEN BERG MANAGEMENT I14,868 sh	14,868	$840.2K
Neo Ivy Capital Management14,741 sh	14,741	$833.0K
Symmetry Investments14,027 sh	14,027	$792.7K
DRW Securities9,347 sh	9,347	$528.2K
ALTFEST L J8,961 sh	8,961	$506.4K
TRIGLAV SKLADI, D.O.O.7,265 sh	7,265	$410.5K
Interval Partners6,587 sh	6,587	$372.2K
COLDSTREAM CAPITAL MANAGEMENT5,315 sh	5,315	$300.4K
Apollon Wealth Management5,025 sh	5,025	$283.9K
Sender & Partners4,482 sh	4,482	$253.3K
Centiva Capital4,061 sh	4,061	$229.5K
Marex Group plc3,748 sh	3,748	$211.8K
QUADRANT CAPITAL GROUP3,592 sh	3,592	$150.5K
ACADIAN ASSET MANAGEMENT1,209 sh	1,209	$68.0K
FNY Investment Advisers518 sh	518	$29.0K
Intentional Wealth Strategies380 sh	380	$21.5K
SUMMIT SECURITIES GROUP300 sh	300	$17.0K
Aster Capital Management (DIFC) Ltd268 sh	268	$5.8K
Root Financial Partners51 sh	51	$2.9K
Optiver Holding B.V.35 sh	35	$2.0K
Legacy Wealth Managment30 sh	30	$1.7K
Golden State Equity Partners18 sh	18	$1.0K
Rachor Investment Advisory Services10 sh	10	$566.00
MAI Capital Management8 sh	8	$453.00
HOLLENCREST SECURITIES5 sh	5	$283.00
Vermillion Wealth Management5 sh	5	$283.00
Elequin Securities92 sh	92	—

Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.