Cambium Networks (CMBM) officer reports Form 4 insider share transaction

Rhea-AI Filing Summary

Cambium Networks Corp insider reported a small share transaction involving the company’s ordinary shares. On 12/01/2025, an officer serving as Global Controller and CAO completed a transaction coded “F” involving 50 ordinary shares at a price of $1.83 per share. Following this activity, the insider beneficially owned 6,449 ordinary shares, held directly. The report was filed as a single-person Form 4 ownership filing for Cambium Networks Corp [CMBM].

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

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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^*

Cada-Bartoli Melissa Elizabeth

(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)
	Global Controller and CAO

3. Date of Earliest Transaction (Month/Day/Year)
12/01/2025

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	12/01/2025		F		50	D	$1.83	6,449	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	12/03/2025
	** 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

What insider transaction was reported for CMBM on this Form 4?

The Form 4 reports that a Cambium Networks Corp insider completed a transaction on 12/01/2025 involving 50 ordinary shares at $1.83 per share, under transaction code “F”.

Who is the reporting person’s role at Cambium Networks Corp (CMBM)?

The reporting person is identified as an officer of Cambium Networks Corp with the title Global Controller and CAO.

How many Cambium Networks (CMBM) shares does the insider own after the transaction?

After the reported transaction, the insider beneficially owned 6,449 ordinary shares of Cambium Networks Corp, held directly.

What does transaction code "F" mean on this CMBM Form 4?

The transaction is labeled with code “F” in the Form 4 table. The code itself is shown, but no further explanation of its meaning is provided in this content.

Is this CMBM Form 4 filed by more than one reporting person?

No. The filing indicates it is a Form filed by One Reporting Person, not a joint filing by multiple insiders.

Does the CMBM insider hold the reported shares directly or indirectly?

The Form 4 shows the ownership form as Direct (D), meaning the 6,449 ordinary shares are held directly by the reporting person.

Who signed the CMBM Form 4 and in what capacity?

The Form 4 was signed on 12/03/2025 by /s/ Sally Rau, attorney-in-fact, signing on behalf of the reporting person.