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

Institutional Holders (2015Q2)
Portfolio Summary: 4 Institutional holders with a total value of $1,436,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 CITADEL ADVISORS LLC 10,100 594,000 41.36% Call
2 SABBY MANAGEMENT, LLC 89 523,000 36.42% Call
3 GROUP ONE TRADING LLC 5,400 317,000 22.08% Call
4 SIMPLEX TRADING, LLC 5 2,000 0.14% 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.