0001144204-18-064515.txt : 20181213
0001144204-18-064515.hdr.sgml : 20181213
20181213183025
ACCESSION NUMBER: 0001144204-18-064515
CONFORMED SUBMISSION TYPE: 4
PUBLIC DOCUMENT COUNT: 1
CONFORMED PERIOD OF REPORT: 20181211
FILED AS OF DATE: 20181213
DATE AS OF CHANGE: 20181213
REPORTING-OWNER:
OWNER DATA:
COMPANY CONFORMED NAME: RA CAPITAL MANAGEMENT, LLC
CENTRAL INDEX KEY: 0001346824
STATE OF INCORPORATION: MA
FISCAL YEAR END: 1231
FILING VALUES:
FORM TYPE: 4
SEC ACT: 1934 Act
SEC FILE NUMBER: 001-38756
FILM NUMBER: 181234203
BUSINESS ADDRESS:
STREET 1: 20 PARK PLAZA, SUITE 1200
CITY: BOSTON
STATE: MA
ZIP: 02116
BUSINESS PHONE: 617-778-2500
MAIL ADDRESS:
STREET 1: 20 PARK PLAZA, SUITE 1200
CITY: BOSTON
STATE: MA
ZIP: 02116
REPORTING-OWNER:
OWNER DATA:
COMPANY CONFORMED NAME: RA Capital Healthcare Fund LP
CENTRAL INDEX KEY: 0001315082
STATE OF INCORPORATION: DE
FISCAL YEAR END: 1231
FILING VALUES:
FORM TYPE: 4
SEC ACT: 1934 Act
SEC FILE NUMBER: 001-38756
FILM NUMBER: 181234204
BUSINESS ADDRESS:
STREET 1: 20 PARK PLAZA, SUITE 1200
CITY: BOSTON
STATE: MA
ZIP: 02116
BUSINESS PHONE: 6177782500
MAIL ADDRESS:
STREET 1: 20 PARK PLAZA, SUITE 1200
CITY: BOSTON
STATE: MA
ZIP: 02116
FORMER NAME:
FORMER CONFORMED NAME: RA Capital Biotech Fund LP
DATE OF NAME CHANGE: 20050121
ISSUER:
COMPANY DATA:
COMPANY CONFORMED NAME: Synthorx, Inc.
CENTRAL INDEX KEY: 0001609727
STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834]
IRS NUMBER: 464709185
STATE OF INCORPORATION: DE
FISCAL YEAR END: 1231
BUSINESS ADDRESS:
STREET 1: 11099 NORTH TORREY PINES ROAD, SUITE 290
CITY: LA JOLLA
STATE: CA
ZIP: 92037
BUSINESS PHONE: 858-750-4715
MAIL ADDRESS:
STREET 1: 11099 NORTH TORREY PINES ROAD, SUITE 290
CITY: LA JOLLA
STATE: CA
ZIP: 92037
4
1
tv509134_4.xml
OWNERSHIP DOCUMENT
X0306
4
2018-12-11
0
0001609727
Synthorx, Inc.
THOR
0001346824
RA CAPITAL MANAGEMENT, LLC
C/O RA CAPITAL MANAGEMENT, LLC
20 PARK PLAZA, SUITE 1200
BOSTON
MA
02116
0
0
1
0
0001315082
RA Capital Healthcare Fund LP
C/O RA CAPITAL MANAGEMENT, LLC
20 PARK PLAZA, SUITE 1200
BOSTON
MA
02116
0
0
1
0
Common Stock
2018-12-11
4
C
0
1525235
A
1525235
I
See Footnote
Common Stock
2018-12-11
4
C
0
3653908
A
5179143
I
See Footnote
Common Stock
2018-12-11
4
P
0
4545455
11.00
A
9724598
I
See Footnote
Series B Preferred Stock
2018-12-11
4
C
0
2443794
0
D
Common Stock
1525235
0
I
See Footnote
Series C Preferred Stock
2018-12-11
4
C
0
5854439
0
D
Common Stock
3653908
0
I
See Footnote
Automatic conversion, in connection with the Issuer's initial public offering, of preferred stock into shares of common stock on a 1.60224-to-1 basis.
The shares are held as follows: 1,245,659 shares held by RA Capital Healthcare Fund, L.P. (the "Fund") and 279,576 shares held by a separately managed account (the "Account").
RA Capital Management, LLC (the "Adviser") is the general partner of the Fund and the investment adviser for the Account and therefore may be deemed to beneficially own the reported securities for purposes of Section 13(d) of the Securities Exchange Act of 1934. Additionally, Peter Kolchinsky is a director of the Issuer and the sole manager of the Adviser.
The Adviser disclaims beneficial ownership of the reported securities for purposes of Rule 16a-1(a)(1) under the Exchange Act in reliance on Rule 16a-1(a)(1)(v) and therefore disclaims any obligation to report ownership of the reported securities under Section 16(a) of the Exchange Act. The filing of this Form 4 shall not be construed as an admission that the Adviser is, for purposes of Rule 16a-1(a)(1) under the Exchange Act, the beneficial owner of any of the securities reported herein. The Adviser disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a)(2) under the Exchange Act except to the extent of its pecuniary interest therein.
The shares are held as follows: 2,941,397 shares held by the Fund and 712,511 shares held by the Account.
The shares were purchased at the Issuer's initial public offering.
These securities include 7,968,645 shares held by the Fund and 1,755,953 shares held by the Account.
/s/ Peter Kolchinsky, Manager of RA Capital Management, LLC
2018-12-13
/s/ Peter Kolchinsky, Manager of RA Capital Management, LLC the General Partner of RA Capital Healthcare Fund, L.P.
2018-12-13