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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 (2015Q2)
Portfolio Summary: 4 holdings with a total value of $960,816,000.
#
Name
Shares
Value ($)
%
Options
Notes
1 SAGE THERAPEUTICS 8,773,073 640,434,000 66.66%
2 BLUEPRINT MEDICINES CORP COM 7,393,059 195,842,000 20.38%
3 ZAFGEN INC COM 3,202,045 110,887,000 11.54%
4 ELEVEN BIOTHERAPEUTICS INC 4,841,591 13,653,000 1.42%

Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001012975-15-000564, filed 2015.07.30).

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.