Statement of Changes in Beneficial Ownership (4)

FORM 4 [ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response... 0.5
	Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

1. Name and Address of Reporting Person * SIERRA WIRELESS INC	2. Issuer Name and Ticker or Trading Symbol NUMEREX CORP /PA/ [ NMRX ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director                      __ X __ 10% Owner _____ Officer (give title below)      _____ Other (specify below)
(Last)          (First)          (Middle) 13811 WIRELESS WAY	3. Date of Earliest Transaction (MM/DD/YYYY) 12/7/2017
(Street) RICHMOND, BRITISH COLUMBIA, Z4 V6V 3A4 (City)        (State)        (Zip)	4. If Amendment, Date Original Filed (MM/DD/YYYY)	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. Trans. Date	2A. Deemed Execution Date, if any	3. Trans. 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
Class A Common Stock, no par value	12/7/2017		P		19680040   (1) (2) (3)	A	(1) (2)	19680040   (1) (2) (3)	D

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Trans. Date	3A. Deemed Execution Date, if any	4. Trans. 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		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 of Derivative Security: 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:
(1)	On December 7, 2017, pursuant to the Agreement and Plan of Merger, dated as of August 2, 2017 (the "Merger Agreement"), by and among Sierra Wireless, Inc. ("Sierra Wireless"), Wireless Acquisition Sub, Inc., a Delaware corporation and direct, wholly-owned subsidiary of Sierra Wireless ("Merger Sub"), and Numerex Corp. ("Numerex"), Merger Sub merged with and into Numerex, with Numerex surviving as a wholly-owned subsidiary of Sierra Wireless (the "Merger"). Pursuant to the Merger Agreement, at the Effective Time of the Merger (the "Effective Time"), each share of Class A Common Stock, no par value, of Numerex issued and outstanding immediately prior to the Effective Time was converted into the right to receive 0.1800 common shares, no par value, of Sierra Wireless (the "Merger Consideration").
(2)	(Continued from Footnote 1) Additionally, each outstanding restricted stock unit, in-the-money option and in-the-money stock appreciation right of Numerex was cancelled in exchange for the right to receive the Merger Consideration in accordance with the terms of the Merger Agreement. Subject to certain exceptions specified in the Merger Agreement, each outstanding warrant issued by Numerex (with the exception of that certain warrant, dated as of June 7, 2017, issued by Numerex to HCP-FVF, LLC) was cancelled in exchange for the right to receive the Merger Consideration or, if not exercised, was otherwise cancelled at the Effective Time.
(3)	This figure represents 100% of the shares of Class A Common Stock, no par value, of Numerex issued and outstanding immediately prior to the Effective Time.

Reporting Owners
Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
SIERRA WIRELESS INC 13811 WIRELESS WAY RICHMOND, BRITISH COLUMBIA, Z4 V6V 3A4		X

Signatures
/s/ David G. McLennan, Chief Financial Officer and Secretary		12/8/2017
** 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 control number.