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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
907562	Dyax Corp	DYAX	Services-Commercial Physical & Biological Research (8731)	043053198

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1091925	L Thomas Kempner	C/O Dyax Corp. 55 Network Drive Burlington MA 01803-2756		Yes	No	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Disposition	2015-08-12	3,848	$23.80	1,003,003	No	4	S	Indirect	By Trust
Common Stock	Disposition	2015-08-13	1,000	$23.84	576,120	No	4	S	Indirect	By Loeb Holding Corporation

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	S	Indirect	By Trust
No	4	S	Indirect	By Loeb Holding Corporation

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	5,021	Indirect	By Spouse
Common Stock	55,041	Direct

Footnotes

Shares held in trust, of which the reporting person is the trustee, for the benefit of the reporting person's brother's children, the reporting person's children, the reporting person's sister-in-law, and the reporting person.
The price reported in Column 4 is a weighted-average price. These shares were sold in multiple transactions at prices ranging from $23.83 to $23.86, inclusive. The reporting person undertakes to provide to Dyax Corp., any security holder of Dyax Corp., or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote 2.
The reporting person is the Chairman, Chief Executive Officer, and also beneficial owner of a majority of the voting stock of Loeb Holding Corporation. The reporting person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest therein.