X0306 4 2013-02-25 0 0001292556 Polypore International, Inc. PPO 0001347297 Flynn Frederick C JR C/O POLYPORE INTERNATIONAL, INC. 11430 N. COMMUNITY HOUSE ROAD, SUITE 350 CHARLOTTE NC 28277 1 0 0 0 Common Stock, par value $.01 per share 2013-02-25 4 A 0 1648 0 A 16232 D The shares of restricted stock were granted to the reporting person on February 25, 2013 under the terms of the Polypore International, Inc. 2007 Stock Incentive Plan (amended and restated effective as of May 12, 2011), as further amended on November 30, 2011, pursuant to Rule 16b-3 of the Securities Exchange Act of 1934. One-third of these 1,648 shares will vest on each of the first, second and third anniversaries of the grant date, respectively, subject to certain conditions. /s/ Frederick C. Flynn, Jr. 2013-02-27