[SCHEDULE 13G/A] Sonim Technologies, Inc. SEC Filing

Rhea-AI Filing Summary

Schedule 13G/A Amendment No. 3 overview:

Investor Laurence W. Lytton has disclosed beneficial ownership of 1,200,000 Sonim Technologies (SONM) shares as of 30-Jun-2025. The stake comprises 800,000 common shares and warrants for 400,000 additional shares, subject to a 19.99 % ownership cap, and equals 11.2 % of the company’s 10,338,905 shares outstanding reported on 18-Jun-2025. All voting and dispositive powers are shared; the filer holds no sole authority.

The filing is made under Rule 13d-1(c), indicating a passive investment rather than an activist position. The certification states the securities were not acquired to influence control. The statement is signed and dated 02-Jul-2025.

Key data

• Beneficial owner: Laurence W. Lytton (U.S.)
• Common shares: 800,000
• Warrants: 400,000
• Total beneficial ownership: 1.2 million shares
• Ownership percentage: 11.2 %
• Sole voting/dispositive power: 0
• Shared voting/dispositive power: 1.2 million

No other group members or subsidiaries are identified.

Positive

• Laurence W. Lytton’s 11.2 % ownership signals substantial shareholder interest and potential confidence in SONM’s prospects.

Negative

• None.

Insights

Financial Analyst

TL;DR: Passive investor now controls 11.2 % of SONM, a notable but non-activist stake with limited immediate earnings impact.

The amendment shows a single individual accumulating a >10 % position, which can increase share-price visibility and liquidity. Because the filing is under Rule 13d-1(c) and explicitly denies control intent, it is unlikely to trigger governance changes or strategic shifts. The presence of 400,000 warrants could create future dilution, but the 19.99 % cap limits potential dominance. Overall, the disclosure is informational; valuation effects depend on market perception of a committed, long-term holder.

Corporate Governance Expert

TL;DR: Single shareholder surpasses 10 % threshold; governance impact minimal due to shared voting and passive certification.

Crossing the 10 % line requires prompt disclosure, which Lytton has provided. The absence of sole voting power and the Rule 13d-1(c) designation indicate no current effort to influence board composition or policies. The filing signals compliance and transparency, reducing regulatory risk. Should the holder become activist, a 13D would be required; as filed, board dynamics remain unchanged.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 3)

SONIM TECHNOLOGIES INC

(Name of Issuer)

Common Stock

(Title of Class of Securities)

83548F309

(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. 83548F309

1

Names of Reporting Persons

LYTTON LAURENCE W

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 0.00
6	Shared Voting Power 1,200,000.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 1,200,000.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,200,000.00

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)

11.2 %

12

Type of Reporting Person (See Instructions)

IN

Comment for Type of Reporting Person: The shares of Common Stock reported herein consist of 800,000 shares of Common Stock and warrants to purchase 400,000 shares of Common Stock, subject to a 19.99% beneficial ownership limitation. The percentage reported herein is calculated based on 10,338,905 shares of Common Stock outstanding on June 9, 2025, as reported in the Proxy Statement filed by the Issuer on June 18, 2025, and 400,000 shares of Common Stock issued to the reporting person on May 12, 2025.

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: Laurence W. Lytton
(b)	Address or principal business office or, if none, residence: 467 CENTRAL PARK WEST, NEW YORK, NY 10025
(c)	Citizenship: United States
(d)	Title of class of securities: Common Stock
(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: 1,200,000
(b)	Percent of class: 11.2%
(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: 1,200,000
	(iii) Sole power to dispose or to direct the disposition of: 0
	(iv) Shared power to dispose or to direct the disposition of: 1,200,000
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.

LYTTON LAURENCE W

Signature:	/s/ Lytton Laurence
Name/Title:	Reporting Person
Date:	07/02/2025

FAQ

Who is the significant shareholder disclosed in SONM’s Schedule 13G/A?

The filing identifies Laurence W. Lytton as the beneficial owner.

How many Sonim Technologies shares does Laurence W. Lytton own?

He reports beneficial ownership of 1,200,000 shares (800,000 common + warrants for 400,000 shares).

What percentage of SONM’s outstanding shares does the 1.2 million share stake represent?

The stake equals 11.2 % of shares outstanding as of 30-Jun-2025.

Does the reporting person have sole or shared voting power over the SONM shares?

He has 0 sole and 1,200,000 shared voting and dispositive power.

Under which rule was the Schedule 13G/A filed?

It was filed under Rule 13d-1(c), indicating a passive investment.

Are the warrants subject to any ownership limitations?

Yes, the warrants are capped to maintain ownership below 19.99 %.