[Form 4] Cambium Networks Corporation Insider Trading Activity

Rhea-AI Filing Summary

On 07/10/2025, Cambium Networks Corporation (CMBM) Senior VP, Products Vivek Vibhu filed a Form 4 reporting a single insider transaction.

• Transaction type: Code F – shares withheld to cover tax obligations related to equity vesting.
• Volume: 3,579 ordinary shares disposed at $0.4408 per share.
• Remaining ownership: 117,279 shares held directly after the transaction.

No derivative securities were involved and no additional transactions were disclosed. The disposal represents roughly 3 % of the insider’s direct stake, suggesting a routine administrative event with limited market significance.

Insights

Securities Analyst

TL;DR: Routine 3,579-share tax withholding; neutral for CMBM investors.

The Form 4 shows Senior VP Vivek Vibhu disposed 3,579 shares under transaction code F, a standard mechanism to satisfy withholding taxes on equity vesting. Post-transaction, he still owns 117,279 shares, maintaining meaningful exposure to Cambium Networks’ equity. Given the small size (≈3 % of his holdings) and lack of strategic context, the filing is unlikely to influence valuation or trading dynamics. Overall impact: neutral.

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^*

Vivek Vibhu

(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)
	Senior VP, Products

3. Date of Earliest Transaction (Month/Day/Year)
07/10/2025

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	07/10/2025		F		3,579	D	$0.4408	117,279	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	07/14/2025
	** 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.

FAQ

How many Cambium Networks (CMBM) shares did Vivek Vibhu dispose of?

3,579 ordinary shares were disposed of in the reported transaction.

What price was received for the disposed CMBM shares?

The shares were reported at $0.4408 per share.

How many shares does Vivek Vibhu hold after the Form 4 transaction?

He directly owns 117,279 Cambium Networks shares following the disposal.

What does transaction code “F” signify on the Form 4?

Code F means shares were withheld by the issuer to cover tax liabilities on vested equity awards.

When did the insider transaction occur?

The transaction date was July 10, 2025.