We periodically repurchase, at the then current market price, and cancel common stock issued to the Dorman Products, Inc. 401(k) Retirement Plan and Trust (the “401(k) Plan”). 401(k) Plan participants can no longer purchase shares of Dorman common stock as an investment option under the 401(k) Plan. Shares are generally purchased by the Company from the 401(k) Plan when participants sell units as permitted by the 401(k) Plan or elect to leave the 401(k) Plan upon retirement, termination or other reasons. The following table summarizes the repurchase and cancellation of common stock by the Company for the periods indicated:

	Three Months Ended				Nine Months Ended
	September 24, 2022		September 25, 2021		September 24, 2022		September 25, 2021
Shares repurchased and canceled		—		1,426		20,385		4,568
Total cost of shares repurchased and canceled (in thousands)	$	—	$	146	$	2,140	$	462
Average price per share	$	—	$	102.62	$	104.99	$	101.16

Separately, our Board of Directors has authorized the repurchase of up to $600 million of our common stock through December 31, 2024 under a previously announced share repurchase program and subsequent authorizations, including a $100 million increase and two-year extension in July 2022. Under this program, share repurchases may be made from time to time depending on market conditions, share price, share availability and other factors at our discretion. The share repurchase program does not obligate us to acquire any specific number of shares. At September 24, 2022, $228.0 million was available for repurchase under this share repurchase program. The following table summarizes the repurchase and cancellation of common stock under the share repurchase program:

	Three Months Ended				Nine Months Ended
	September 24, 2022		September 25, 2021		September 24, 2022		September 25, 2021
Shares repurchased and canceled		14,700		232,618		180,750		534,507
Total cost of shares repurchased and canceled (in thousands)	$	1,523	$	23,218	$	17,577	$	54,152
Average price per share	$	103.57	$	99.81	$	97.24	$	101.31