13G Filing: RA Capital Management and Derma Sciences, Inc. (DSCI)

CUSIP No. 249827502

(c) Number of shares as to which such person has:

(i) sole power to
vote or to direct the vote **

RA Capital
Management, LLC – 0 shares

Peter Kolchinsky – 0 shares

RA Capital Healthcare Fund, L.P. – 0 shares

(ii) shared power
to vote or to direct the vote**

RA Capital
Management, LLC – 2,055,676 shares

Peter Kolchinsky – 2,055,676 shares

RA Capital Healthcare Fund, L.P. –
1,613,065 shares

(iii) sole power
to dispose or to direct the disposition of**

RA Capital
Management, LLC – 0 shares

Peter Kolchinsky – 0 shares

RA Capital Healthcare Fund, L.P. – 0 shares

(iv) shared power
to dispose or to direct the disposition of**

RA
Capital Management, LLC – 2,055,676 shares

Peter Kolchinsky – 2,055,676 shares

RA Capital Healthcare Fund, L.P. –
1,613,065 shares

** RA Capital Management, LLC
(“Capital”) is the general partner of RA Capital Healthcare Fund, L.P. (the “Fund”) and serves as investment
adviser for a separately managed account (the “Account”). Peter Kolchinsky is the manager of Capital. Mr. Kolchinsky,
Capital and the Fund are referred to herein collectively as the “Reporting Persons.” As the investment adviser to the
Fund and the Account, Capital may be deemed a beneficial owner, for purposes of Section 13(d) of the Securities Exchange Act of
1934 (the “Act”), of any securities of the Issuer owned by the Fund or the Account. As the manager of Capital, Mr.
Kolchinsky may be deemed a beneficial owner, for purposes of Section 13(d) of the Act, of any securities of the Issuer beneficially
owned by Capital. Capital is a registered investment adviser within the meaning of Rule 13d-1(b)(1)(ii)(E) and Rule 16a-1(a)(v),
and Mr. Kolchinsky is a parent or control person of Capital within the meaning of Rule 13d-1(b)(1)(ii)(G) and Rule 16a-1(a)(1)(vii).
Capital and Mr. Kolchinsky disclaim beneficial ownership of the securities reported in this Schedule 13G Statement (the “Statement”)
other than for the purpose of determining their obligations under Section 13(d) of the Act, and neither the filing of the Statement
nor the filing of this Amendment shall not be deemed an admission that either Capital or Mr. Kolchinsky is or was the beneficial
owner of such securities for any other purpose. In the aggregate, the Reporting Persons have the right to purchase a total of 363,636
shares of Common Stock pursuant to the terms of Common Stock Purchase Warrants issued on June 23, 2011. However, the provisions
of the warrants restrict the exercise of such warrants to the extent that, upon such exercise, the number of shares of Common Stock
then beneficially owned by the holder exceed 9.98% of the total number of shares of the Issuer then outstanding.