Company · Ownership research

Solaris Energy Infrastructure, Inc. SEI

CIK 0001697500 · CUSIP 83418M103

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 83418M103 (SEI), not CUSIP 83418M953 (SEI), CUSIP 83418M903 (SEI), and does not merge CUSIPs.

This page lists the top 20 of 272 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	BlackRock, Inc. CIK 2012383 · View history	$193.95M 4,852,484 shares	0.00%	-1.28M(-20.90%)Reduced	SEC filing ↗ Nov 12, 2025	▾
02	Encompass Capital Advisors LLC CIK 1541901 · View history	$116.70M 2,919,586 shares	5.25%	-707.57K(-19.50%)Reduced	SEC filing ↗ Nov 14, 2025	▾
03	VANGUARD GROUP INC CIK 102909 · View history	$106.51M 2,664,870 shares	0.00%	+224.02K(+9.20%)Added	SEC filing ↗ Nov 7, 2025	▾
04	FMR LLC CIK 315066 · View history	$89.43M 2,237,437 shares	0.00%	+584.82K(+35.40%)Added	SEC filing ↗ Nov 13, 2025	▾
05	MORGAN STANLEY CIK 895421 · Amended · View history	$75.60M 1,891,539 shares	0.00%	+307.30K(+19.40%)Added	SEC filing ↗ May 27, 2026	▾
06	SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC CIK 1638555 · View history	$71.80M 1,796,310 shares	2.34%	-613.31K(-25.50%)Reduced	SEC filing ↗ Nov 14, 2025	▾
07	GOLDMAN SACHS GROUP INC CIK 886982 · View history	$67.81M 1,696,481 shares	0.01%	+851.90K(+100.90%)Added	SEC filing ↗ Nov 14, 2025	▾
08	VAN ECK ASSOCIATES CORP CIK 869178 · View history	$51.80M 1,295,898 shares	0.05%	+1.12M(+623.50%)Added	SEC filing ↗ Nov 13, 2025	▾
09	WELLINGTON MANAGEMENT GROUP LLP CIK 902219 · View history	$48.87M 1,222,542 shares	0.01%	-30.25K(-2.40%)Reduced	SEC filing ↗ Nov 14, 2025	▾
10	GW&K Investment Management, LLC CIK 1082917 · View history	$47.08M 1,177,830 shares	0.42%	+130.97K(+12.50%)Added	SEC filing ↗ Nov 12, 2025	▾
11	Situational Awareness LP CIK 2045724 · View history	$45.98M 1,150,300 shares	2.05%	+1.15MNew	SEC filing ↗ Nov 14, 2025	▾
12	Point72 Asset Management, L.P. CIK 1603466 · View history	$43.87M 1,097,575 shares	0.10%	+923.33K(+529.90%)Added	SEC filing ↗ Nov 14, 2025	▾
13	JANE STREET GROUP, LLC CIK 1595888 · View history	$41.73M 1,044,042 shares	0.05%	+1.04MNew	SEC filing ↗ Nov 14, 2025	▾
14	STATE STREET CORP CIK 93751 · View history	$41.71M 1,043,621 shares	0.00%	+121.69K(+13.20%)Added	SEC filing ↗ Nov 14, 2025	▾
15	TWO SIGMA INVESTMENTS, LP CIK 1179392 · View history	$40.26M 1,007,320 shares	0.06%	+474.09K(+88.90%)Added	SEC filing ↗ Nov 14, 2025	▾
16	Advent International, L.P. CIK 1034196 · View history	$40.25M 1,006,900 shares	0.81%	+1.01MNew	SEC filing ↗ Nov 14, 2025	▾
17	BRIGHTLINE CAPITAL MANAGEMENT, LLC CIK 1432450 · View history	$40.09M 1,003,000 shares	16.43%	-119.00K(-10.60%)Reduced	SEC filing ↗ Nov 13, 2025	▾
18	Driehaus Capital Management LLC CIK 938206 · View history	$38.43M 961,547 shares	0.28%	-1.28M(-57.20%)Reduced	SEC filing ↗ Nov 14, 2025	▾
19	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$36.43M 911,202 shares	0.00%	+47.65K(+5.50%)Added	SEC filing ↗ Nov 12, 2025	▾
20	Ceredex Value Advisors LLC CIK 1738726 · Amended · View history	$35.05M 876,900 shares	0.81%	+876.90KNew	SEC filing ↗ Nov 13, 2025	▾

Showing 20 / 272 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

272

Cancelled or null records excluded

Disclosed shares

55,295,404

Not deduplicated across managers

Disclosed value

$2.21B

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

Solaris Energy Infrastructure, Inc. · Q3 2025

Explore all 272 reporting institutions.

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.