X0303 4 2010-06-30 0 0000740694 KAYDON CORP KDN 0001212607 ALEXANDER MARK A P.O. BOX 448 MONTVILLE NJ 07045 1 0 0 0 Phantom stock 0.00 2010-06-30 4 A 0 427.49 32.86 A Common stock 427.49 2078.41 D Acquired on June 30, 2010, as a result of reporting person's previous election to defer compensation and receive accruals of phantom shares of Kaydon common stock under the Kaydon Director Deferred Compensation Plan, and to receive accruals of additional phantom shares as a result of dividends paid on phantom shares of Kaydon common stock owned at the beginning of the fiscal quarter, at $32.86 per share, the closing price of Kaydon common stock on June 30, 2010. Shares of phantom stock are payable in cash or shares of Kaydon common stock following the person's election to cease deferral. Phantom shares have no specific date of exercisability nor any specific expiration date. /s/ Mark A. Alexander, by Debra K. Crane, attorney-in-fact 2010-07-01