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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
875622	Biospecifics Technologies Corp	BSTC	Pharmaceutical Preparations (2834)	113054851

Insiders

Cik	Name	Reported Address	Director	Officer	Large Shareholder	Other
1315082	Ra Capital Healthcare Fund Lp	C/O Ra Capital Management, Llc 20 Park Plaza, Suite 905 Boston MA 02116	No	No	Yes	No
1346824	Ra Capital Management, Llc	C/O Ra Capital Management, Llc 20 Park Plaza, Suite 905 Boston MA 02116	No	No	Yes	No
1384859	Peter Kolchinsky	C/O Ra Capital Management, Llc 20 Park Plaza, Suite 905 Boston MA 02116	No	No	Yes	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	2010-02-03	132,833	$28.80	708,770	No	4	S	Indirect	see footnote

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	S	Indirect	see footnote

Footnotes

These shares represent 577,528 shares held by RA Capital Healthcare Fund, L.P. ("Fund I") and 131,242 shares held by Blackwell Partners, LLC ("Blackwell").
The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $28.55 to $29.54 per share. The Reporting Persons undertake to provide to Biospecifics Technologies Corp., any security holder of Biospecifics Technologies Corp. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within this range.
RA Capital Management, LLC (the "Adviser") is the general partner of Fund I and the investment adviser of Blackwell. Peter Kolchinsky is the sole manager of the Adviser. Each of the Reporting Persons disclaims beneficial ownership of any shares of the above names Issuer reported herein, except to the extent of his or its pecuniary interest therein.