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ALNYLAM PHARMACEUTICALS INC
ALNYLAM PHARMACEUTICALS INC. Institutional holdings reported to the SEC.

Institutional Holders (2014Q4)
Portfolio Summary: 5 Institutional holders with a total value of $12,011,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 SABBY MANAGEMENT, LLC 706 6,848,000 57.01% Call
2 GROUP ONE TRADING LLC 28,900 2,803,000 23.34% Call
3 CITADEL ADVISORS LLC 19,000 1,843,000 15.34% Call
4 Timber Hill LLC 5,000 485,000 4.04% Call
5 SIMPLEX TRADING, LLC 24 32,000 0.27% Call

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.