0001140361-16-089670.txt : 20161214 0001140361-16-089670.hdr.sgml : 20161214 20161214162654 ACCESSION NUMBER: 0001140361-16-089670 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20161212 FILED AS OF DATE: 20161214 DATE AS OF CHANGE: 20161214 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: PROTEOSTASIS THERAPEUTICS, INC. CENTRAL INDEX KEY: 0001445283 STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834] IRS NUMBER: 000000000 STATE OF INCORPORATION: DE BUSINESS ADDRESS: STREET 1: 200 TECHNOLOGY SQUARE CITY: CAMBRIDGE STATE: MA ZIP: 02139 BUSINESS PHONE: 617-225-0096 MAIL ADDRESS: STREET 1: 200 TECHNOLOGY SQUARE CITY: CAMBRIDGE STATE: MA ZIP: 02139 FORMER COMPANY: FORMER CONFORMED NAME: PROTEOSTASIS THERAPEUTICS INC DATE OF NAME CHANGE: 20080916 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Cormorant Global Healthcare Master Fund, LP CENTRAL INDEX KEY: 0001618442 STATE OF INCORPORATION: E9 FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-37695 FILM NUMBER: 162051368 BUSINESS ADDRESS: STREET 1: 200 CLARENDON STREET STREET 2: 52ND FLOOR CITY: BOSTON STATE: MA ZIP: 02116 BUSINESS PHONE: 617-848-3429 MAIL ADDRESS: STREET 1: 200 CLARENDON STREET STREET 2: 52ND FLOOR CITY: BOSTON STATE: MA ZIP: 02116 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Cormorant Global Healthcare GP, LLC CENTRAL INDEX KEY: 0001618451 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-37695 FILM NUMBER: 162051369 BUSINESS ADDRESS: STREET 1: 100 HIGH STREET STREET 2: SUITE 1105 CITY: BOSTON STATE: DC ZIP: 02110 BUSINESS PHONE: 617-848-3429 MAIL ADDRESS: STREET 1: 100 HIGH STREET STREET 2: SUITE 1105 CITY: BOSTON STATE: DC ZIP: 02110 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Chen Bihua CENTRAL INDEX KEY: 0001599214 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-37695 FILM NUMBER: 162051370 MAIL ADDRESS: STREET 1: C/O CORMORANT ASSET MANAGEMENT, LLC STREET 2: 200 CLARENDON STREET, 52ND FLOOR CITY: BOSTON STATE: MA ZIP: 02116 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Cormorant Asset Management, LLC CENTRAL INDEX KEY: 0001583977 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-37695 FILM NUMBER: 162051371 BUSINESS ADDRESS: STREET 1: 200 CLARENDON STREET STREET 2: 52ND FLOOR CITY: BOSTON STATE: MA ZIP: 02116 BUSINESS PHONE: 857-702-0388 MAIL ADDRESS: STREET 1: 200 CLARENDON STREET STREET 2: 52ND FLOOR CITY: BOSTON STATE: MA ZIP: 02116 4 1 doc1.xml FORM 4 X0306 4 2016-12-12 0 0001445283 PROTEOSTASIS THERAPEUTICS, INC. PTI 0001583977 Cormorant Asset Management, LLC 200 CLARENDON STREET, 52ND FLOOR BOSTON MA 02116 0 0 1 0 0001599214 Chen Bihua C/O CORMORANT ASSET MANAGEMENT, LLC 200 CLARENDON STREET, 52ND FLOOR BOSTON MA 02116 1 0 1 0 0001618451 Cormorant Global Healthcare GP, LLC 200 CLARENDON STREET, 52ND FLOOR BOSTON MA 02116 0 0 1 0 0001618442 Cormorant Global Healthcare Master Fund, LP 200 CLARENDON STREET, 52ND FLOOR BOSTON MA 02116 0 0 1 0 Common Stock 2016-12-12 4 P 0 100000 10.7895 A 3782726 I See Footnotes Common Stock 2016-12-13 4 P 0 21301 10.9833 A 3804027 I See Footnotes Shares reported herein are held by Cormorant Global Healthcare Master Fund, LP (the "Master Fund") and by a managed account (the "Account"). Cormorant Asset Management, LLC ("Cormorant") serves as the investment manager of the Master Fund and the Account. Cormorant Global Healthcare GP, LLC ("GP LLC") serves as General Partner of the Master Fund. Bihua Chen serves as manager of Cormorant and GP LLC. GP LLC may be deemed to beneficially own the shares held by the Master Fund, and Cormorant and Ms. Chen may be deemed to beneficially own the shares held by the Master Fund and the Account. Each of the Reporting Persons disclaims beneficial ownership of the shares reported herein except to the extent of its or her pecuniary interest therein, and the filing of this Form 4 shall not be construed as an admission that any of the Reporting Persons is the beneficial owner of any such shares for purposes of Section 16(a) of the Securities Exchange Act of 1934 or for any other purpose. Represents the weighted average purchase price of shares purchased in a series of open market transactions on the transaction date at prices ranging from $10.57 to $11.00 per share. The Reporting Persons undertake to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased at each price. Of these shares, 83,150 were purchased for the Master Fund and 16,850 shares were purchased for the Account. As of December 12, 2016, the Master Fund held 3,145,714 shares, and the Account held 637,012 shares. Represents the weighted average purchase price of shares purchased in a series of open market transactions on the transaction date at prices ranging from $10.95 to $11.00 per share. The Reporting Persons undertake to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares purchased at each price. Of these shares, 17,712 were purchased for the Master Fund and 3,589 shares were purchased for the Account. As of December 13, 2016, the Master Fund held 3,163,426 shares, and the Account held 640,601 shares. /s/ CORMORANT GLOBAL HEALTHCARE GP, LLC By: Bihua Chen, Managing Member 2016-12-14 /s/ CORMORANT ASSET MANAGEMENT, LLC By: Bihua Chen, Managing Member 2016-12-14 /s/ CORMORANT GLOBAL HEALTHCARE MASTER FUND, LP By: Cormorant Global Healthcare GP, LLC, its General Partner By: Bihua Chen, Managing Member 2016-12-14 /s/ Bihua Chen 2016-12-14