Schedule 13G: 1 Main Capital Reports 908,410 Shares of SONM

Rhea-AI Filing Summary

This Schedule 13G reports that the Reporting Persons collectively beneficially own 908,410 shares of Sonim Technologies, Inc. common stock, representing 5.1% of the class based on 17,738,905 shares outstanding plus 150,000 shares underlying warrants.

The holdings are held across private funds managed by 1 Main Capital: Fund 1 directly holds 622,380 shares plus warrants for 150,000 shares and Fund 2 holds 136,030 shares, with the Adviser (1 Main Capital Management, LLC), the General Partner and Principal Yaron Naymark identified as reporting persons. The filing states the stake was not acquired to influence control and is signed by Yaron Naymark.

Positive

• Material disclosure of a 5.1% stake in Sonim Technologies provides transparency to the market
• Clear allocation of holdings across Fund 1 (622,380 shares plus 150,000 warrants) and Fund 2 (136,030 shares)

Negative

• None.

Insights

Financial Analyst

TL;DR: A disclosed passive stake of 5.1% signals a meaningful investor position but the filer states no intent to influence control.

The filing documents an aggregate beneficial ownership of 908,410 shares, equal to 5.1% of Sonim's outstanding common stock when including 150,000 shares underlying warrants. For investors, a >5% disclosure requires attention because it can affect float and voting dynamics, but the Schedule 13G classification and the signed certification indicate a passive investment posture rather than an activist or control-driven approach. The split between Fund 1 and Fund 2 and the Adviser’s roles clarify voting and dispositive power reported as sole for the disclosed shares.

Corporate Governance Expert

TL;DR: Ownership above the 5% threshold triggers disclosure; the filer affirms no intent to change control.

The document identifies the Adviser, its Principal and related entities as reporting persons and discloses sole voting and dispositive power over the reported shares. The filing follows Schedule 13G procedures for passive investors by certifying no purpose of influencing control. Governance implications include a modestly concentrated ownership block that could be influential in close votes, but absent indications of coordinated action or a group, this remains a passive disclosure.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

Sonim Technologies, Inc.

(Name of Issuer)

Common Stock, $0.001 par value per share

(Title of Class of Securities)

83548F309

(CUSIP Number)

08/27/2025

(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. 83548F309

1

Names of Reporting Persons

1 Main Capital Management, 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 908,410.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 908,410.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

908,410.00

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)

5.1 %

12

Type of Reporting Person (See Instructions)

OO

Comment for Type of Reporting Person: limited liability company

SCHEDULE 13G

CUSIP No. 83548F309

1

Names of Reporting Persons

Yaron Naymark

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 STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 908,410.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 908,410.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

908,410.00

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)

5.1 %

12

Type of Reporting Person (See Instructions)

IN

SCHEDULE 13G

CUSIP No. 83548F309

1

Names of Reporting Persons

1 Main Capital Partners, L.P.

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 772,380.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 772,380.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

772,380.00

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)

4.3 %

12

Type of Reporting Person (See Instructions)

PN

SCHEDULE 13G

CUSIP No. 83548F309

1

Names of Reporting Persons

1 Main Capital GP, 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 772,380.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 772,380.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

772,380.00

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)

4.3 %

12

Type of Reporting Person (See Instructions)

OO

Comment for Type of Reporting Person: limited liability company

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Sonim Technologies, Inc.
(b)	Address of issuer's principal executive offices: 4445 Eastgate Mall, Suite 200, San Diego, CA 92121
Item 2.
(a)	Name of person filing: This Schedule 13G is filed by the following (the "Reporting Persons"): (1) 1 Main Capital Management, LLC (the "Adviser"); (2) Yaron Naymark; (3) 1 Main Capital Partners, L.P. ("Fund 1"); and (4) 1 Main Capital GP, LLC (the "General Partner of Fund 1"). The Adviser also acts as the investment adviser to 2055 Partners L.P. ("Fund 2"), an unaffiliated client of the Adviser. Fund 1 and Fund 2 (together, the "Funds") are private investment vehicles. The Funds directly beneficially own the Common Stock (as defined below) reported in this Statement. The Adviser is the investment manager of the Funds. Yaron Naymark is the Principal of the Adviser. The General Partner of Fund 1 is the general partner of Fund 1. The Adviser, Yaron Naymark and the General Partner of Fund 1 may be deemed to beneficially own the Common Stock directly beneficially owned by Fund 1. The Adviser and Yaron Naymark may be deemed to beneficially own the Common Stock directly beneficially owned by Fund 2. Each Reporting Person disclaims beneficial ownership with respect to any Common Stock other than the Common Stock directly beneficially owned by such Reporting Person.
(b)	Address or principal business office or, if none, residence: The principal business office of the Reporting Persons is 8 Wright Street, Suite 107, Westport, Connecticut, 06880.
(c)	Citizenship: For citizenship or place of organization see Item 4 of the cover page of each Reporting Person.
(d)	Title of class of securities: Common Stock, $0.001 par value per share
(e)	CUSIP No.: 83548F309
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: See Items 5-9 and 11 on the cover page for each Reporting Person, and Item 2, which information is given as of the close of business on the Event Date of August 27, 2025. As of the close of business on the Event Date, the Reporting Persons collectively beneficially owned 908,410 shares of Common Stock (of which 622,380 shares of Common Stock and 150,000 shares of Common Stock underlying warrants were held by Fund 1, and 136,030 shares of Common Stock were held by Fund 2).
(b)	Percent of class: See Item 11 on the cover page for each Reporting Person. The percentages of beneficial ownership contained herein are based on: (x) 17,738,905 shares of Common Stock outstanding as of August 1, 2025 as reported by the Issuer in its Form 10-Q filed with the SEC on August 8, 2025; and (y) an additional 150,000 shares of Common Stock underlying the warrants described above.
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: See Item 5 on the cover page for each Reporting Person.
	(ii) Shared power to vote or to direct the vote: See Item 6 on the cover page for each Reporting Person.
	(iii) Sole power to dispose or to direct the disposition of: See Item 7 on the cover page for each Reporting Person.
	(iv) Shared power to dispose or to direct the disposition of: See Item 8 on the cover page for each Reporting Person.
Item 5.	Ownership of 5 Percent or Less of a Class.
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
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.

1 Main Capital Management, LLC

Signature:	/s/ Yaron Naymark
Name/Title:	Yaron Naymark / Authorized Signatory
Date:	09/04/2025

Yaron Naymark

Signature:	/s/ Yaron Naymark
Name/Title:	N/A
Date:	09/04/2025

1 Main Capital Partners, L.P.

Signature:	/s/ Yaron Naymark
Name/Title:	Yaron Naymark / Authorized Signatory
Date:	09/04/2025

1 Main Capital GP, LLC

Signature:	/s/ Yaron Naymark
Name/Title:	Yaron Naymark / Authorized Signatory
Date:	09/04/2025

Exhibit Information

99.1 - Joint Filing Agreement

FAQ

What stake in SONM does the Schedule 13G disclose?

The filing discloses an aggregate beneficial ownership of 908,410 shares, representing 5.1% of the class.

How are the 908,410 shares allocated across the reporting funds?

Fund 1 holds 622,380 shares and warrants for 150,000 shares; Fund 2 holds 136,030 shares.

Does the filer state an intent to influence control of Sonim (SONM)?

Yes. The Schedule 13G includes a certification stating the securities were not acquired to change or influence control of the issuer.

Who are the reporting persons named in the filing?

Reporting persons are 1 Main Capital Management, LLC, Yaron Naymark, 1 Main Capital Partners, L.P., and 1 Main Capital GP, LLC.

What reference share count did the filing use to calculate the percentage?

Percentages are based on 17,738,905 shares outstanding as of August 1, 2025 as reported by the issuer, plus 150,000 shares underlying warrants.