Sonida Senior Living holder reports 6% stake

Sonida Senior Living, Inc. (SNDA) has a significant shareholder group led by Pertento Partners LLP and related entities, which together report beneficial ownership of 2,874,486 shares of common stock, representing 6.0% of the class.

Rhea-AI Filing Summary

Sonida Senior Living, Inc. (SNDA) has a significant shareholder group led by Pertento Partners LLP and related entities, which together report beneficial ownership of 2,874,486 shares of common stock, representing 6.0% of the class. Pertento Master Fund Limited separately reports beneficial ownership of 2,406,170 shares, or 5.0% of the class. The Pertento entities and Eduardo Marques report shared, but no sole, power to vote and dispose of these shares. All reported securities are directly owned by advisory clients of Pertento Partners LLP, with the reporting persons disclaiming beneficial ownership except to the extent of their pecuniary interest.

Key Figures

Shares beneficially owned by Pertento Partners LLP: 2,874,486 shares Ownership percentage for Pertento Partners LLP: 6.0% Shares beneficially owned by Pertento Master Fund Limited: 2,406,170 shares +5 more

8 metrics

Shares beneficially owned by Pertento Partners LLP 2,874,486 shares Common stock of Sonida Senior Living, Inc.; Item 4(a)

Ownership percentage for Pertento Partners LLP 6.0% Percent of SNDA common stock class; Item 4(b)

Shares beneficially owned by Pertento Master Fund Limited 2,406,170 shares Common stock of Sonida Senior Living, Inc.; Item 4(a)

Ownership percentage for Pertento Master Fund Limited 5.0% Percent of SNDA common stock class; Item 4(b)

Shares beneficially owned by Eduardo Marques 2,874,486 shares Common stock of Sonida Senior Living, Inc.; Item 4(a)

Shared voting power (Pertento Partners LLP) 2,874,486 shares Number of shares with shared power to vote or direct the vote

Shared voting power (Pertento Master Fund Limited) 2,406,170 shares Number of shares with shared power to vote or direct the vote

Sole voting power (all reporting persons) 0 shares Each reporting person reports no sole voting power over SNDA shares

Key Terms

beneficially owned, shared voting power, shared dispositive power, pecuniary interest, +1 more

5 terms

beneficially owned financial

"Amount beneficially owned: Pertento Partners LLP - 2,874,486"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

shared voting power financial

"Shared Voting Power 2,874,486.00"

Shared voting power occurs when two or more parties jointly have the right to vote or decide how a block of company shares is cast, like co-owners who must agree before moving a piece of furniture. Investors care because who controls voting rights affects board elections, major corporate decisions and takeover outcomes, and shared control can alter regulatory disclosures and the practical influence any holder has over a company’s direction and value.

shared dispositive power financial

"Shared Dispositive Power 2,874,486.00"

pecuniary interest financial

"disclaims beneficial ownership ... except to the extent of his, her or its pecuniary interest"

Schedule 13G regulatory

"All of the securities reported in this amendment are directly owned"

A Schedule 13G is a formal document that investors file with the government when they acquire a large ownership stake in a company, usually for investment purposes rather than control. It helps keep the public informed about who owns significant parts of a company's shares, which can influence how the company is managed and how investors make decisions. Filing this schedule is important for transparency and understanding the ownership landscape of publicly traded companies.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How much of Sonida Senior Living (SNDA) does Pertento Partners LLP report owning?

Pertento Partners LLP reports beneficial ownership of 2,874,486 shares of Sonida Senior Living common stock, representing 6.0% of the class, with shared voting and dispositive power over these shares.

What stake in SNDA does Pertento Master Fund Limited report in this Schedule 13G/A?

Pertento Master Fund Limited reports beneficial ownership of 2,406,170 shares of Sonida Senior Living common stock, equal to 5.0% of the class, with shared voting and shared dispositive power over these shares.

What is Eduardo Marques’s reported beneficial ownership in Sonida Senior Living (SNDA)?

Eduardo Marques reports beneficial ownership of 2,874,486 shares of Sonida Senior Living common stock, representing 6.0% of the class, with shared voting and shared dispositive power and no sole power to vote or dispose.

Do the Pertento reporting persons have sole voting power over SNDA shares?

No. Pertento Partners LLP, Pertento Advisors LLC, Pertento Master Fund Limited, and Eduardo Marques each report 0 shares with sole voting power and disclose only shared voting power over their reported Sonida Senior Living shares.

Who directly owns the Sonida Senior Living (SNDA) shares reported in this Schedule 13G/A?

The filing states that all of the securities reported are directly owned by advisory clients of Pertento Partners LLP. Other than Pertento Master Fund Limited, none of those clients may be deemed to beneficially own more than 5% of the common stock.

Do the Pertento reporting persons admit full beneficial ownership of their SNDA holdings?

No. Each reporting person disclaims beneficial ownership of the reported securities except to the extent of their pecuniary interest, and the report is not an admission of beneficial ownership for any purpose.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 09/10/2026 - 08:27 AM EDT Accepted by SEC EDGAR 09/10/2026 - 08:26 AM EDT Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 1)

Sonida Senior Living, Inc.

(Name of Issuer)

Common Stock, $0.01 par value per share

(Title of Class of Securities)

140475203

(CUSIP Number)

09/04/2026

(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)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 140475203

1

Names of Reporting Persons

Pertento Partners LLP

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

UNITED KINGDOM

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 2,874,486.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 2,874,486.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

2,874,486.00

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)

6.0 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

CUSIP Number(s): 140475203

1

Names of Reporting Persons

Pertento Advisors LLC

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

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 2,874,486.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 2,874,486.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

2,874,486.00

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)

6.0 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

CUSIP Number(s): 140475203

1

Names of Reporting Persons

Pertento Master Fund Limited

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

CAYMAN ISLANDS

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 2,406,170.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 2,406,170.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

2,406,170.00

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)

5.0 %

12

Type of Reporting Person (See Instructions)

OO

SCHEDULE 13G

CUSIP Number(s): 140475203

1

Names of Reporting Persons

Eduardo Marques

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

BRAZIL

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 2,874,486.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 2,874,486.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

2,874,486.00

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)

6.0 %

12

Type of Reporting Person (See Instructions)

HC, IN

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Sonida Senior Living, Inc.
(b)	Address of issuer's principal executive offices: 14755 Preston Road, Suite 810, Dallas, Texas 75254
Item 2.
(a)	Name of person filing: Pertento Partners LLP Pertento Advisors LLC Pertento Master Fund Limited Eduardo Marques
(b)	Address or principal business office or, if none, residence: Pertento Partners LLP 67 Grosvenor Street London W1K3JN United Kingdom Pertento Advisors LLC 67 Grosvenor Street London W1K3JN United Kingdom Pertento Master Fund Limited 67 Grosvenor Street London W1K3JN United Kingdom Eduardo Marques 67 Grosvenor Street London W1K3JN United Kingdom
(c)	Citizenship: Pertento Partners LLP - United Kingdom Pertento Advisors LLC - Delaware Pertento Master Fund Limited - Cayman Islands Eduardo Marques - Brazil
(d)	Title of class of securities: Common Stock, $0.01 par value per share
(e)	CUSIP No.: 140475203
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: Pertento Partners LLP - 2,874,486 Pertento Advisors LLC - 2,874,486 Pertento Master Fund Limited - 2,406,170 Eduardo Marques - 2,874,486
(b)	Percent of class: Pertento Partners LLP - 6.0% Pertento Advisors LLC - 6.0% Pertento Master Fund Limited - 5.0% Eduardo Marques - 6.0%
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: Pertento Partners LLP - 0 Pertento Advisors LLC - 0 Pertento Master Fund Limited - 0 Eduardo Marques - 0
	(ii) Shared power to vote or to direct the vote: Pertento Partners LLP - 2,874,486 Pertento Advisors LLC - 2,874,486 Pertento Master Fund Limited - 2,406,170 Eduardo Marques - 2,874,486
	(iii) Sole power to dispose or to direct the disposition of: Pertento Partners LLP - 0 Pertento Advisors LLC - 0 Pertento Master Fund Limited - 0 Eduardo Marques - 0
	(iv) Shared power to dispose or to direct the disposition of: Pertento Partners LLP - 2,874,486 Pertento Advisors LLC - 2,874,486 Pertento Master Fund Limited - 2,406,170 Eduardo Marques - 2,874,486
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
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. All of the securities reported in this Schedule 13G amendment are directly owned by advisory clients of Pertento Partners LLP. None of those advisory clients, other than Pertento Master Fund Limited, may be deemed to beneficially own more than 5% of the Common Stock, $0.01 par value per share.
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 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.

Pertento Partners LLP

Signature:	/s/ Eduardo Marques
Name/Title:	Eduardo Marques, Managing Partner
Date:	09/10/2026

Pertento Advisors LLC

Signature:	/s/ Eduardo Marques
Name/Title:	Eduardo Marques, Authorized Person
Date:	09/10/2026

Pertento Master Fund Limited

Signature:	/s/ Eduardo Marques
Name/Title:	Eduardo Marques, Authorized Person
Date:	09/10/2026

Eduardo Marques

Signature:	/s/ Eduardo Marques
Name/Title:	Eduardo Marques
Date:	09/10/2026

Comments accompanying signature: * Each Reporting Person disclaims beneficial ownership of the reported securities except to the extent of his, her or its pecuniary interest therein, and this report shall not be deemed an admission that such Reporting Person is the beneficial owner of the securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose. To the extent that "ownership of 5 percent or less of a class" was indicated in Item 5, such response only applies to the Reporting Person(s) that indicated elsewhere herein that it beneficially owns five percent (5%) or less of the class.

Exhibit Information

Exhibit A - Joint Filing Agreement