Tracking Insider Trading: Notable Transactions (Sept.01)

Below is a list of market insider purchases and sales filed at the Securities and Exchange Commission Tuesday (Sept.01) as ranked by dollar value.

• Stryker Corporation (NYSE:SYK) Engelman Donald M (Director) sold 14,136 shares at $41.33 for a value of $584,240 on 8/28

• Schweitzer Mauduit International Inc (NYSE:SWM) Rumely John W Jr (Secretary and General Counsel)  exercised 8,123 options at $24.52 for a value of $199,216 on 8/31. Also on 8/31, Rumely John W Jr sold 8,123 shares of SWM at $49.66 for a value of $403,347

• Sigma-Aldrich Corporation (NASDAQ:SIAL) Miller Karen J (VP, Strategy & Corp Development) exercised 7,800 options at $25.32 for a value of $197,457 on 8/31

• Tower Bancorp Inc. (NASDAQ:TOBC) Faust Marcus (Director) sold 19,000 shares at $26.75 for a value of $508,250 on 8/28

• Tower Bancorp Inc. (NASDAQ:TOBC) Lehman Kenneth R (Director) sold 49,350 shares at $26.75 for a value of $1,320,112 on 8/28. Also on 8/28, Renninger Jeffrey H (EVP, Chief Operating Officer) sold 7,000 shares at $26.75 for a value of $187,250

• Exxon Mobil Corp. (NYSE:XOM) Rosenthal David S (Vice President and Secretary) sold 350 shares at $70.00 for a value of $24,500 on 8/28

• Schweitzer Mauduit International Inc (NYSE:SWM) Thompson Peter J (Treas, CFO & Strat Plan Off.) exercised 6,335 options at $30.16 for a value of $191,095 on 8/31. Also on 8/31, Thompson Peter J sold 6,335 shares of SWM at $50.00 for a value of $316,750

• Lumber Liquidators, Inc. (NYSE:LL) Sullivan Thomas D (Chairman of the Board; Founder) sold 25,000 shares at $21.88 for a value of $546,975 on 8/31

• Artesian Resources Corp. (NASDAQ:ARTNA) Biederman Kenneth R (Director) sold 3,375 shares at $17.25 for a value of $58,218 on 8/28

• Hallwood Group Inc (NYSE:HWG) Crocco Charles A Jr. (Director) sold 1,000 shares at $27.90 for a value of $27,905 on 8/28

• Doral Energy Corp. (OTC:DEGY) Kirkitelos Paul C (Secretary/Treasurer/CFO) sold 10,000 shares at $2.40 for a value of $24,049 on 8/28

• Tower Bancorp Inc. (NASDAQ:TOBC) Samuel Andrew S (President, CEO) sold 24,000 shares at $26.75 for a value of $642,000 on 8/28.

• Power Integrations Inc. (NASDAQ:POWI) Bell Derek (VP of Engineering) sold 1,400 shares at $32.88 for a value of $46,030 on 8/31

• Twin Disc Inc. (NASDAQ:TWIN) Bratel Dean (VP-Engineering) sold 2,000 shares at $12.45 for a value of $24,900 on 8/31

• Exact Sciences Corp. (NASDAQ:EXAS) Conroy Kevin T (President & CEO) bought 9,000 shares at $2.22 for a value of $19,980 on 8/31

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