X0306 4 2014-02-28 0000890923 ZOLTEK COMPANIES INC ZOLT 0000903738 RUMY ZSOLT 3101 MCKELVEY ROAD ST. LOUIS MO 63044 1 1 1 Chair. of the Board, Pres.,CEO Common Stock 2014-02-28 4 D 0 6202904 D 0 D Stock Option (Right to Buy) 5.72 2014-02-28 4 D 0 23948 D 2021-11-24 Common Stock 23948 0 D Stock Option (Right to Buy) 5.72 2014-02-28 4 D 0 62500 D 2021-11-24 Common Stock 62500 0 D Pursuant to the Agreement and Plan of Merger, dated as of September 27, 2013 (the "Merger Agreement"), by and among Zoltek Companies, Inc. ("Zoltek"), Toray Industries, Inc. ("Parent") and TZ Acquisition Corp. ("Merger Sub"), Merger Sub merged with and into Zoltek with Zoltek continuing as the surviving corporation and a wholly-owned subsidiary of Parent (the "Merger"). Upon the effective time of the Merger, each share of Zoltek common stock was cancelled and converted into the right to receive $16.75 in cash, without interest. Pursuant to the Merger Agreement, each outstanding option to acquire shares of Zoltek common stock, whether or not then vested or exercisable, was cancelled and converted into the right to receive an amount in cash equal to $16.75, without interest, for each share issuable upon exercise of the option less the per-share exercise price for each share issuable upon exercise of the option. In the event that the exercise price of an outstanding option to acquire shares of Zoltek common stock was equal to or greater than $16.75, such option was cancelled without payment therefor. /s/ Zsolt Rumy 2014-03-04