13G Filing: Great Point Partners and PTC Therapeutics Inc. (PTCT)

Page 7 of 10

Page 7 of 10 – SEC Filing

CUSIP
No.
69366J200
13G Page
7 of 9 Pages
1. Great Point Partners, LLC
(a) Amount beneficially owned:  2,160,0001
(b) Percent of class:  5.24%2
(c) Number of shares as to which the person has:
(i) Sole power to vote or to direct the vote:  0
(ii) Shared power to vote or to direct the vote:  2,160,0001
(iii) Sole power to dispose or to direct the disposition of: 0
(iv) Shared power to dispose or to direct the disposition of:  2,160,0001
2. Dr. Jeffrey R. Jay, M.D.
(a) Amount beneficially owned:  2,160,0001
(b) Percent of class:  5.24%2
(c) Number of shares as to which the person has:
(i) Sole power to vote or to direct the vote:  0
(ii) Shared power to vote or to direct the vote: 2,160,0001
(iii) Sole power to dispose or to direct the disposition of:  0
(iv) Shared power to dispose or to direct the disposition of:  2,160,0001
3. Mr. David Kroin
(a) Amount beneficially owned:  2,160,0001
(b) Percent of class:  5.24%2
(c) Number of shares as to which the person has:
(i) Sole power to vote or to direct the vote:  0
(ii) Shared power to vote or to direct the vote:  2,160,0001
(iii) Sole power to dispose or to direct the disposition of:  0
(iv) Shared power to dispose or to direct the disposition of:  2,160,0001
Item 5. Ownership of Five Percent or Less
of a Class

If this statement is
being filed to report the fact that as of the date hereof each of the Reporting Persons has ceased to be the beneficial owner of
more than five percent of the class of securities, check the following [__].

Item 6. Ownership of More than Five Percent
on Behalf of Another Person:
See Item 4.
Item 7. Identification and Classification
of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company
Not Applicable.

Follow Ptc Therapeutics Inc. (NASDAQ:PTCT)

Page 7 of 10