SEC Form 3 
FORM 3	UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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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1. Name and Address of Reporting Person*
Bhatnagar Atul	

(Last)	(First)	(Middle)	
C/O CAMBIUM NETWORKS, INC.	
3800 GOLF ROAD, SUITE 360	

(Street) 
ROLLING MEADOWS	IL	60008	

(City)	(State)	(Zip)	
	2. Date of Event Requiring Statement (Month/Day/Year)
06/25/2019 	3. Issuer Name and Ticker or Trading Symbol 
Cambium Networks Corp [ CMBM ] 		
		4. Relationship of Reporting Person(s) to Issuer 
(Check all applicable) 
X	Director		10% Owner	
X	Officer (give title below)		Other (specify below)	
CEO	
	5. 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 Beneficially Owned	
1. Title of Security (Instr. 4) 	2. Amount of Securities Beneficially Owned (Instr. 4) 	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 	4. Nature of Indirect Beneficial Ownership (Instr. 5) 	
Table II - Derivative Securities Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities) 	
1. Title of Derivative Security (Instr. 4) 	2. Date Exercisable and Expiration Date (Month/Day/Year)	3. Title and Amount of Securities Underlying Derivative Security (Instr. 4) 	4. Conversion or Exercise Price of Derivative Security 	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 	6. Nature of Indirect Beneficial Ownership (Instr. 5) 	
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares				
Class B Units(1) 	(2) 	(6) 	Ordinary Shares	274,568	(1)	D		
Class B Units(1) 	(3) 	(6) 	Ordinary Shares	205,926	(1)	D		
Class B Units(1) 	(4) 	(6) 	Ordinary Shares	205,926	(1)	D		
Class B Units(1) 	(3) 	(6) 	Ordinary Shares	137,284	(1)	D		
Class B Units(1) 	(3) 	(6) 	Ordinary Shares	5,265	(1)	D		
Class B Units(1) 	(5) 	(6) 	Ordinary Shares	5,265	(1)	D		
Explanation of Responses:	
1. Represents Class B Units of Vector Cambium Holdings (Cayman), LP ("VCH"), the issuer's parent. In connection with the issuer's Recapitalization (as described in the issuer's prospectus dated June 25, 2019) and upon consummation of the initial public offering, these Class B Units will be exchanged for Ordinary Shares of the issuer, on a value-for-value basis, based on the initial public offering price of $12.	
2. These Class B Units vested as follows: 25% vested on February 18, 2014, and the remaining 75% vested in 36 substantially equal monthly installments thereafter, subject to reporting person's continuous service as of each vesting date.	
3. These Class B Units vest upon completion of the issuer's Recapitalization and consummation of the issuer's initial public offering.	
4. These Class B Units vest upon achievement of the volume weighted trading average of the issuer's Ordinary Shares, as reported on the NASDAQ Global Market, over 90 consecutive days following expiration of the initial public offering price lock up period exceeding a total equity return multiple of at least 6.0 times, as defined in the original award documents.	
5. These Class B Units vest as follows: 50% vested on December 31, 2017 upon achievement of bonus targets for 2017, 5% vested on December 31, 2018 upon achievement of bonus targets for 2018 and the remaining vest upon achievement of bonus targets for 2019.	
6. These Class B Units have no expiration date.	
Remarks:	
Exhibit 24 - Power of Attorney	
	/s/ Sally Rau, attorney-in-fact	06/25/2019	
	** 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 5 (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.	

Exhibit 24

POWER OF ATTORNEY
Know all by these presents, that the undersigned hereby makes, constitutes and appoints each of Sally Rau and Stephen Cumming or either of them acting individually, and with full power of substitution, the undersigned's true and lawful attorney-in-fact to:

	(1)	prepare, execute in the undersigned's name and on the undersigned's behalf, and submit to the U.S. Securities and Exchange Commission (the "SEC") a Form ID, including amendments thereto, and any other documents necessary or appropriate to obtain codes and passwords enabling the undersigned to make electronic filings with the SEC of reports required by Section 16(a) of the Securities Exchange Act of 1934 or any rule or regulation of the SEC;	

	(2)	execute for and on behalf of the undersigned, in the undersigned's capacity as an officer and/or director of Cambium Networks Corporation, a Delaware corporation (the "Company"), Forms 3, 4, and 5, including amendments thereto, in accordance with Section 16(a) of the Securities Exchange Act of 1934 and the rules and regulations thereunder;	

	(3)	do and perform any and all acts for and on behalf of the undersigned which may be necessary or desirable to complete and execute any such Form 3, 4, or 5, complete and execute any amendment or amendments thereto, and timely file such form with the SEC and any stock exchange or similar authority; and	

	(4)	take any other action of any type whatsoever in connection with the foregoing which, in the opinion of such attorney-in-fact, may be of benefit to, in the best interest of, or legally required by, the undersigned, it being understood that the documents executed by such attorney-in-fact on behalf of the undersigned pursuant to this Power of Attorney shall be in such form and shall contain such terms and conditions as such attorney-in-fact may approve in such attorney-in-fact's discretion.	

The undersigned hereby grants to each such attorney-in-fact full power and authority to do and perform any and every act and thing whatsoever requisite, necessary, or proper to be done in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as the undersigned might or could do if personally present, with full power of substitution or revocation, hereby ratifying and confirming all that such attorney-in-fact, or such attorney-in-fact's substitute or substitutes, shall lawfully do or cause to be done by virtue of this power of attorney and the rights and powers herein granted. The undersigned acknowledges that the foregoing attorneys-in-fact, in serving in such capacity at the request of the undersigned, are not assuming, nor is the Company assuming, any of the undersigned's responsibilities to comply with Section 16 of the Securities Exchange Act of 1934.

This Power of Attorney shall remain in full force and effect until the undersigned is no longer required to file Forms 3, 4, and 5 with respect to the undersigned's holdings of and transactions in securities issued by the Company, unless earlier (a) revoked by the undersigned in a signed writing delivered to the foregoing attorneys-in-fact or (b) superseded by a new power of attorney regarding the purposes outlined herein at a later date.

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of this
12 day of June, 2019.

 	/s/ Atul Bhatnagar 	
 	Signature	
 	 	
 	Atul Bhatnagar 	
 	Print Name