[Form 4] Cambium Networks Corporation Insider Trading Activity

Insider sale by Cambium Networks CFO.

Rhea-AI Filing Summary

Insider sale by Cambium Networks CFO. The Form 4 reports that Sayer Jacob, listed as Chief Financial Officer, disposed of 550 ordinary shares on 08/15/2025 at a price of $0.699 per share. After the reported transaction he beneficially owns 26,855 shares. The filing was signed by attorney-in-fact Sally Rau on 08/19/2025.

Insights

Financial Analyst

TL;DR: A routine small insider sale by the CFO; limited market impact given the modest size.

The reported disposition of 550 shares at $0.699 represents a minor reduction in the CFO's holding relative to the reported post-transaction beneficial ownership of 26,855 shares. There are no derivative transactions or additional disclosures in this Form 4. From a financial-materiality standpoint this sale appears routine and not likely to change valuation metrics or signal company-level material information.

Corporate Governance Expert

TL;DR: Disclosure complies with Section 16 reporting; transaction appears procedural and non-material.

The filing identifies the reporting person as an officer (CFO) and discloses the required details: transaction date, amount sold, price, and resulting beneficial ownership. The signature by an attorney-in-fact is properly included. There are no indications of related-party transfers, Rule 10b5-1 plan disclosures, or amendments, so governance concerns appear limited based on this document alone.

Insider Trade Summary

Exercise Price or Tax Liability: 550 shares

Exercise Price or Tax Liability 1 txn

Insider Sayer Jacob

Role Chief Financial Officer

Type	Security	Shares	Price	Value
Exercise Price or Tax Liability	Ordinary Shares	550	$0.699	$384.45

Holdings After Transaction: Ordinary Shares — 26,855 shares (Direct)

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

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Accepted by SEC EDGAR 08/19/2025 - 04:00 PM EDT Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Sayer Jacob

(Last) (First) (Middle)

C/O CAMBIUM NETWORKS, INC.

2000 CENTER DRIVE, SUITE EAST A401

(Street)

HOFFMAN ESTATES IL 60192

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Cambium Networks Corp [ CMBM ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Financial Officer

3. Date of Earliest Transaction (Month/Day/Year)
08/15/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Ordinary Shares	08/15/2025		F		550	D	$0.699	26,855	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

	/s/ Sally Rau, attorney-in-fact	08/19/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.