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898 shares withheld for taxes at Cambium Networks Corp (OTC: CMBMF)

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

On July 10, 2026, Cambium Networks Corp Senior VP, Products Vivek Vibhu reported a tax-withholding disposition of 898 Ordinary Shares at $0.25 per share to satisfy tax obligations. After this non-market transaction, he directly holds 113,561 Ordinary Shares.

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Insider Vivek Vibhu
Role Senior VP, Products
Type Security Shares Price Value
Tax Withholding Ordinary Shares 898 $0.25 $224.50
Holdings After Transaction: Ordinary Shares — 113,561 shares (Direct)
Footnotes (1)
Shares disposed for tax withholding 898 Ordinary Shares Tax-withholding disposition on July 10, 2026
Transaction price per share $0.25 Valuation used for the 898-share tax-withholding disposition
Shares held after transaction 113,561 Ordinary Shares Direct ownership by Vivek Vibhu following the disposition
tax-withholding disposition financial
"transaction_action": "tax-withholding disposition", "transaction_code_description""
A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.
derivative financial
"derivativeSummary contains remaining derivative positions (unexercised options, warrants)"
A derivative is a financial contract whose value depends on the price or performance of another asset or measure — for example a stock, index, interest rate, commodity, or currency. Investors use derivatives like insurance or leveraged bets to hedge risk, speculate, or gain exposure without owning the underlying asset; they can protect portfolios but also amplify losses and introduce counterparty and market risk.
Rule 10b5-1 trading plans regulatory
"Footnotes may reference Rule 10b5-1 trading plans or pre-arranged trading arrangements"
Rule 10b5-1 trading plans are written, pre-arranged instructions that allow company insiders (such as executives or directors) to automatically buy or sell their company's stock at specified times or under set conditions, like a standing instruction or automated thermostat for trades. They matter to investors because these plans provide a legal defense against insider‑trading accusations and create predictable insider trading patterns that can help signal whether sales are routine portfolio management or potentially meaningful to the company’s outlook.
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FAQ

What insider transaction did Cambium Networks (CMBMF) report for Vivek Vibhu?

Cambium Networks reported that Senior VP, Products Vivek Vibhu had a tax-withholding disposition of Ordinary Shares. The transaction was recorded as payment of a tax liability by delivering securities rather than as an open-market trade.

How many Cambium Networks (CMBMF) shares were withheld for Vivek Vibhu’s taxes?

The report shows 898 Ordinary Shares were disposed of for tax withholding. This reduced his position slightly while leaving his overall direct ownership in Cambium Networks largely unchanged after the transaction.

At what price were Vivek Vibhu’s Cambium Networks (CMBMF) shares valued in the tax-withholding?

The 898 Ordinary Shares involved in the tax-withholding disposition were valued at $0.25 per share. This valuation is used solely to determine the value of shares delivered to satisfy the related tax obligation.

How many Cambium Networks (CMBMF) shares does Vivek Vibhu own after the reported transaction?

Following the tax-withholding disposition, Vivek Vibhu directly holds 113,561 Ordinary Shares of Cambium Networks. This post-transaction balance reflects his continuing equity stake after delivering shares to cover tax liabilities.

Was Vivek Vibhu’s Cambium Networks (CMBMF) transaction an open-market sale?

No. The transaction is classified as a tax-withholding disposition, described as payment of a tax liability by delivering securities. It is treated as a non-market event rather than a discretionary open-market share sale.
SEC Form 4
FORM 4UNITED 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 ILLINOIS 60192

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
Cambium Networks Corp [ CMBMF ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
XOfficer (give title below)Other (specify below)
Senior VP, Products
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
07/10/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

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)
CodeVAmount(A) or (D)Price
Ordinary Shares07/10/2026F898D$0.25113,561D
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
/s/ Sally Rau, attorney-in-fact07/14/2026
** Signature of Reporting PersonDate
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.
* Form 4: SEC 1474 (03-26)