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

Q: What does CUSIP 83418M103 represent in this 13F holders report?

CUSIP 83418M103 is the security identifier for SEI - Solaris Energy Infrastructure, Inc. - Class A Common Stock, $0.01 par value used to aggregate holder disclosures.

Q: How many institutions held SEI - Solaris Energy Infrastructure, Inc. - Class A Common Stock, $0.01 par value in Q1 2025?

199 institutional investors reported SEI - Solaris Energy Infrastructure, Inc. - Class A Common Stock, $0.01 par value for Q1 2025. Use the holders table for investor-level position and value details.

CUSIP: 83418M103

Q1 2025 13F Holders as of 31 Mar 2025

Security type / class: Equity / Class A Common Stock, $0.01 par value
Total 13F shares: 40,959,060
Total 13F value: $891,389,031
Share change: +6,050,634
Put/Call ratio: 59%
SEC-reported price per share: $21.76
Number of holders: 199
Value change: +$125,489,923
Number of buys: 143
Number of sells: 67
Shares outstanding: 58,139,535

Security key

83418M103

Report period

Q1 2025

Institutions

199

Top holders

SEI full security history Ownership snapshot Full 13F holder table Newer quarter: Q2 2025 Previous quarter: Q4 2024 Solaris Energy Infrastructure, Inc. SEC filings Solaris Energy Infrastructure, Inc. company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP 83418M103

Newer quarter: Q2 2025 Previous quarter: Q4 2024

Recent filing periods:

Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024

Ownership snapshot

Top reported holders of SEI - Solaris Energy Infrastructure, Inc. - Class A Common Stock, $0.01 par value (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader

Yorktown Energy Partners ...

Disclosed value leader

Yorktown Energy Partners ...

Comparable rows

15/15

Latest evidence

31 Dec 2024

3/4/5 13D/G 13F Lead comparable stake: 16% 13D/G row: Yorktown Energy Partners X, L.P. Showing 1-6 of 15 holder rows.

Quick read

Yorktown Energy Partners X, L.P. leads the comparable SEC ownership view at 16%.

15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens Yorktown Energy Partners X, L.P.'s linked filing trail.

Comparable ownership Top 5

Yorktown Energy Partners X, L.P. 16%

Solaris Energy Capital, LLC 8.5%

BlackRock, Inc. 5.6%

DIMENSIONAL FUND ADVISORS LP 2.3%

T. Rowe Price Investment Manageme... 1%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
Yorktown Energy Partners X, L.P.	3/4/5 13D/G 10%+ Owner 3/4/5 13D/G	16% from 13D/G	$169,954,710 14,158,468 shares mixed-class rows	—	16 Dec 2024
Solaris Energy Capital, LLC	13D/G 13D/G	8.5%	$72,834,772 3,513,496 shares	$0	31 Dec 2024
BlackRock, Inc.	13F 13D/G Company 13F 13D/G	5.6% from 13D/G	$163,570,273 5,683,470 shares	—	31 Dec 2024
DIMENSIONAL FUND ADVISORS LP	13F 13D/G Company 13F 13D/G	2.3% from 13D/G	$24,937,215 866,490 shares	—	31 Dec 2024
T. Rowe Price Investment Management, Inc.	13F 13D/G Company 13F 13D/G	1% from 13D/G	$71,609,000 2,488,143 shares	—	31 Dec 2024
SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC	13F Company 13F	4.1%	$69,048,717 2,399,191 shares	—	31 Dec 2024

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q1 2025

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

199

40,959,060

Rows available

199

Investor	Option	Weight %	Change %	SEC-reported value	* Price	Shares	Share Change	Activity	Report Period

^* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q1 2025 vs Q4 2024 Across Filers

Q4 2024 holders

176

Q1 2025 holders

199

Holder diff

Investor	Q4 2024 Shares	Q1 2025 Shares	Share Diff	Share Chg %	Q4 2024 value	Q1 2025 value	Value change	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend