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).

1. Name and Address of Reporting Person* MCGRATH TIMOTHY J (Last) (First) (Middle) 730 MILFORD ROAD (Street) MERRIMACK NH 03054 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol PC CONNECTION INC [ CNXN ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director 10% Owner X Officer (give title below) Other (specify below) President & CEO
	3. Date of Earliest Transaction (Month/Day/Year) 09/01/2021
	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
Common Stock	09/01/2021		M		7,000	A	$0.00	286,417	D
Common Stock	09/01/2021		F		2,755	D	$47.75	283,662	D
Common Stock	09/01/2021		M		8,000	A	$0.00	291,662	D
Common Stock	09/01/2021		F		3,148	D	$47.75	288,514	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
Restricted Stock Units	(1)	09/01/2021		M			7,000	(2)	(2)	Common Stock	7,000	$0.00	32,000	D
Restricted Stock Units	(1)	09/01/2021		M			8,000	(3)	(3)	Common Stock	8,000	$0.00	48,000	D

Explanation of Responses:

1. The restricted stock units convert into common stock on a one-for-one basis.

2. The restricted stock units were granted under the PC Connection, Inc. Amended and Restated 2007 Stock Incentive Plan on October 30, 2014; 7,000 of the shares vested on September 1, 2021, and the remaining shares are scheduled to vest 8,000 shares annually on September 1, 2022 through September 1, 2025.

3. The restricted stock units were granted under the PC Connection, Inc. Amended and Restated 2007 Stock Incentive Plan on March 1, 2016; 8,000 of the shares vested on September 1, 2021, and the remaining shares are scheduled to vest as follows: 7,000 on September 1, 2022 and 2023; 12,000 shares on September 1, 2024; 7,000 shares on September 1, 2025; 10,000 shares on September 1, 2026; and 5,000 shares on September 1, 2027.

Remarks:

	/s/Timothy J. McGrath	09/02/2021
	** 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).
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