X0304 4 2011-08-05 0 0000907562 DYAX CORP DYAX 0001091925 KEMPNER THOMAS L C/O LOEB PARTNERS CORPORATION 61 BROADWAY NEW YORK NY 10006 1 0 0 0 Common Stock 2011-08-05 4 P 0 20000 1.4 A 1163233 I Trust (1) Common Stock 1308810 I Loeb Holding Corporation (2) Common Stock 53764 I Loeb Investors Co. IX (3) Common Stock 5021 I Spouse Common Stock 11792 I Pinpoint Partners Corporation (4) Common Stock 27311 D Stock Option (right to buy) 2.09 2021-05-21 Common Stock 75000 75000 D Such option will become exercisable in thirty-six (36) substantially equal installments on each monthly anniversary of the date of grant (with any fractional shares to be cumulated and to become exercisable at the end of the earliest succeeding monthly period in which a whole share equivalent is accumulated) for a period of thirty-five (35) months, with the 36th monthly installment to become exercisable as of the commencement of business on the date of the Annual Meeting of Stockholders at which such director is up for reelection or at which such director's term ends. (1) Shares held in trust, of which Mr. Kempner is the trustee, for the benefit of Mr. Kempner's brother's children, Mr. Kempner's children, Mr. Kempner's sister-in-law, and Mr. Kempner. (2) Mr. Kempner is the Chairman, Chief Executive Officer, and also beneficial owner of a majority of the voting stock of Loeb Holding Corporation. Mr. Kempner disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein. (3) Mr. Kempner is the Managing Partner of Loeb Investors Co. IX. Mr. Kempner disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein. (4) Mr. Kempner is President of Pinpoint Partners Corporation. Mr. Kempner disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein. Thomas L. Kempner 2011-08-08