[SCHEDULE 13G] Solaris Oilfield Infrastructure, Inc. SEC Filing

Rhea-AI Filing Summary

The Vanguard Group has filed a Schedule 13G reporting a 5.14 % passive stake in Sierra Bancorp (BSRR). As of 30 June 2025, Vanguard beneficially owns 710,636 common shares (CUSIP 82620P102). Voting authority is largely delegated: Vanguard reports 0 shares with sole voting power and 5,244 shares with shared voting power. Dispositive authority is higher, with 700,461 shares sole and 10,175 shares shared.

The filing classifies Vanguard as an investment adviser under Rule 13d-1(b)(1)(ii)(E). The shares are held in the ordinary course for advisory clients; no intent to influence control is stated. Ashley Grim, Head of Global Fund Administration, signed the filing on 29 July 2025.

Crossing the 5 % threshold elevates Vanguard to Sierra Bancorp’s largest known institutional holder, increasing free-float support and potentially enhancing trading liquidity. However, because the position is passive and there is no activism language, the disclosure is informational rather than strategic.

Positive

• Vanguard holds 5.14 % of BSRR, adding a well-regarded institutional investor to the register.
• Increase in free-float oversight may improve share liquidity and visibility.

Negative

• None.

Insights

Equity Portfolio Manager

TL;DR – Vanguard’s 5.1 % passive stake signals modest institutional support; no control intent disclosed.

Vanguard’s Schedule 13G confirms that an index-focused manager now owns over five percent of BSRR. Passive ownership often improves liquidity and broadens analyst coverage without implying governance pressure. Because voting power is minimal (5,244 shares), Vanguard is unlikely to sway shareholder resolutions. The disclosure is generally neutral for valuation, but institutional endorsement can enhance market perception and reduce volatility.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

Solaris Energy Infrastructure Inc

(Name of Issuer)

Common Stock

(Title of Class of Securities)

83418M103

(CUSIP Number)

06/30/2025

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

SCHEDULE 13G

CUSIP No. 83418M103

1

Names of Reporting Persons

The Vanguard Group

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

PENNSYLVANIA

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 47,891.00
7	Sole Dispositive Power 2,357,972.00
8	Shared Dispositive Power 82,877.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

2,440,849.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

6.04 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Solaris Energy Infrastructure Inc
(b)	Address of issuer's principal executive offices: 9651 Katy Freeway, Suite 300, Houston, TX, 77024-1273
Item 2.
(a)	Name of person filing: The Vanguard Group
(b)	Address or principal business office or, if none, residence: 100 Vanguard Blvd., Malvern, PA 19355
(c)	Citizenship: PA
(d)	Title of class of securities: Common Stock
(e)	CUSIP No.: 83418M103
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 2440849
(b)	Percent of class: 6.04 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 0
	(ii) Shared power to vote or to direct the vote: 47891
	(iii) Sole power to dispose or to direct the disposition of: 2357972
	(iv) Shared power to dispose or to direct the disposition of: 82877
Item 5.	Ownership of 5 Percent or Less of a Class.
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required. The Vanguard Group, Inc.'s clients, including investment companies registered under the Investment Company Act of 1940 and other managed accounts, have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the securities reported herein. No one other person's interest in the securities reported herein is more than 5%.
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

The Vanguard Group

Signature:	Ashley Grim
Name/Title:	Head of Global Fund Administration
Date:	07/29/2025

FAQ

How many Sierra Bancorp shares did Vanguard report owning?

Vanguard reported 710,636 common shares, representing 5.14 % of the company.

Does Vanguard have voting control over BSRR?

Vanguard lists 0 shares with sole voting power and 5,244 shares with shared voting power; control influence is minimal.

Why was this Schedule 13G filed?

Crossing the 5 % ownership threshold on 30 June 2025 required public disclosure under SEC Rule 13d-1.

Is Vanguard’s stake considered passive or activist?

The filing is on Schedule 13G, indicating a passive investment intent with no plan to influence control.

What type of reporting person is Vanguard in this filing?

Vanguard is classified as an investment adviser (IA) under Rule 13d-1(b)(1)(ii)(E).

When was the Schedule 13G signed and by whom?

It was signed on 29 July 2025 by Ashley Grim, Head of Global Fund Administration.