X0306 4 2013-03-12 0 0000868780 Dorman Products, Inc. DORM 0001205405 BERMAN STEVEN L C/O DORMAN PRODUCTS, INC. 3400 WALNUT STREET COLMAR PA 18915 1 1 1 0 Chief Executive Officer Common Stock 2013-03-12 4 S 0 17036 37.01 D 32488 I By Partnership Common Stock 2013-03-13 4 S 0 10826 36.77 D 21662 I By Partnership Common Stock 2013-03-13 4 S 0 427 37.41 D 21235 I By Partnership Common Stock 1309403 D Common Stock 1884964 I By Grantor Retained Annuity Trust Common Stock 99857 I By Charitable Remainder Trust Common Stock 258884 I By Children in Trust Common Stock 25534 I By 401(k) These shares were sold by a limited partnership for which the reporting person is (i) a limited partner and (ii) a controlling shareholder of the general partner of such partnership. The reported securities represent only the reporting person's pecuniary interest in the securities sold by the Partnership on the Transaction Date. The sales reported on this Form 4 by the Partnership were effected pursuant to a Rule 10b5-1 Trading Plan adopted by the Partnership on March 1, 2013. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $36.50 to $37.48. The reporting person undertakes to provide to Dorman Products, Inc., any security holder of Dorman Products, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The reported securities represent only the reporting person's pecuiniary interest in the securities held by the Partnership. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $36.36 to $37.33. The reporting person undertakes to provide to Dorman Products, Inc., any security holder of Dorman Products, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $37.36 to $37.45. The reporting person undertakes to provide to Dorman Products, Inc., any security holder of Dorman Products, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The shares are represented by units held in a unitized stock fund through the Issuer's 401(k) Retirement Plan and Trust. The unitized stock fund of the Issuer's 401(k) Retirement Plan and Trust consists of cash and Common Stock in amounts that vary from time to time. As of December 31, 2012, the reporting person had 16,492 units in the Issuer's 401(k) Retirement Plan and Trust, which units consisted of 25,534 shares of Common Stock. The filing of this Statement shall not be construed as an admission (a) that the person filing this Statement is, for the purposes of Section 16 of the Securities Exchange Act of 1934, as amended, the beneficial owner of any securities covered by this Statement, or (b) that this Statement is legally required to be filed by such person. /s/ Steven L. Berman 2013-03-14