Dark
Light
System
Security
ALNYLAM PHARMACEUTICALS INC
ALNYLAM PHARMACEUTICALS INC. Institutional holdings reported to the SEC.

Institutional Holders (2015Q3)
Portfolio Summary: 6 Institutional holders with a total value of $27,410,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 SABBY MANAGEMENT, LLC 1,676 13,468,000 49.14% Call
2 Ghost Tree Capital, LLC 75,000 6,027,000 21.99% Call
3 CITADEL ADVISORS LLC 53,600 4,307,000 15.71% Call
4 Timber Hill LLC 34,800 2,797,000 10.20% Call
5 GROUP ONE TRADING LLC 9,800 788,000 2.87% Call
6 SIMPLEX TRADING, LLC 176 23,000 0.08% 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.