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Filing Details

Accession Number:
0001144204-18-064515
Form Type:
4
Zero Holdings:
No
Publication Time:
2018-12-13 18:30:25
Reporting Period:
2018-12-11
Accepted Time:
2018-12-13 18:30:25
SEC Url:
Form 4 Filing
Issuer
Cik Name Symbol Sector (SIC) IRS No
1609727 Synthorx Inc. THOR () DE
Insiders
Cik Name Reported Address Insider Title Director Officer Large Shareholder Other
1315082 Ra Capital Healthcare Fund Lp C/o Ra Capital Management, Llc
20 Park Plaza, Suite 1200
Boston MA 02116
No No Yes No
1346824 Ra Capital Management, Llc C/o Ra Capital Management, Llc
20 Park Plaza, Suite 1200
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 Acquisiton 2018-12-11 1,525,235 $0.00 1,525,235 No 4 C Indirect See Footnote
Common Stock Acquisiton 2018-12-11 3,653,908 $0.00 5,179,143 No 4 C Indirect See Footnote
Common Stock Acquisiton 2018-12-11 4,545,455 $11.00 9,724,598 No 4 P Indirect See Footnote
Equity Swap Involved Form Type Code Nature of Ownership Explanation
No 4 C Indirect See Footnote
No 4 C Indirect See Footnote
No 4 P Indirect See Footnote
Reported Derivative Transactions
Sec. Name Sec. Type Acquisiton - Disposition Date Amount Price Amount - 2 Price - 2
Common Stock Series B Preferred Stock Disposition 2018-12-11 2,443,794 $0.00 1,525,235 $0.00
Common Stock Series C Preferred Stock Disposition 2018-12-11 5,854,439 $0.00 3,653,908 $0.00
Remaning Holdings Exercise Date Expiration Date Equity Swap Involved Transaction Form Type Transaction Code Nature of Ownership
0 No 4 C Indirect
0 No 4 C Indirect
Footnotes
  1. 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.
  2. 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").
  3. 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.
  4. 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.
  5. The shares are held as follows: 2,941,397 shares held by the Fund and 712,511 shares held by the Account.
  6. The shares were purchased at the Issuer's initial public offering.
  7. These securities include 7,968,645 shares held by the Fund and 1,755,953 shares held by the Account.