Dark
Light
System
Institutional Investment Manager
Third Rock Ventures, LLC
Third Rock Ventures, LLC (CIK: 0001600135) incorporated in Delaware, located at 29 Newbury Street, Boston, MA. Institutional holdings reported to the SEC.

Institutional Holdings (2015Q3)
Portfolio Summary: 5 holdings with a total value of $1,071,141,000.
#
Name
Shares
Value ($)
%
Options
Notes
1 GLOBAL BLOOD THERAPEUTICS IN COM 14,760,900 622,320,000 58.10%
2 SAGE THERAPEUTICS 6,442,916 272,664,000 25.46%
3 BLUEPRINT MEDICINES CORP COM 7,393,059 157,768,000 14.73%
4 ELEVEN BIOTHERAPEUTICS INC 4,841,591 11,668,000 1.09%
5 ZAFGEN INC COM 210,371 6,721,000 0.63%

Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001600135-15-000001, filed 2015.11.03).

From 2023-01-03 onward, the SEC requires values to be reported in nearest dollars. Earlier filings reported values in thousands; therefore, positions shown as $0 in older filings may represent actual values between $0–$999.