Flagship Pioneering Inc.

Q1 2018 13F Holdings Report, Stock Holdings

Notable people
Noubar Afeyan
Signature - Title
Noubar B. Afeyan, Ph.D. - Chief Executive Officer
Location
Cambridge
Holdings as of
March 31, 2018
Value $
$345M
Num holdings
4
Date filed
5/15/2018, 04:05 PM
Form type
13F-HR
Description
All US holdings of this investor are reported in this report. Top holdings included DNLI, MCRB, SYRS, and QTRX.
Previous filing
Q4 2017 - Feb 14, 2018
Next filing
Q2 2018 - Aug 7, 2018
Sym Weight Trade Impact Company Class Shares Change Activity Value Change $ Value $ * Price $ Shares Principal
Filing 2018 Q1 compared to 2017 Q4 by default.
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.

Person Signing this Report on Behalf of Reporting Manager:

Name Title City, State Date
Noubar B. Afeyan, Ph.D. Chief Executive Officer Cambridge, Massachusetts 5/15/2018

Other Included Managers (2):

Num Name Location File Number
1 Flagship Ventures Fund V General Partner LLC Cambridge, MA 028-18466
2 Flagship Ventures Fund IV General Partner LLC Cambridge, MA 028-17238