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BLUEBIRD BIO INC
BLUEBIRD BIO INC. Institutional holdings reported to the SEC.

Institutional Holders (2014Q2)
Portfolio Summary: 3 Institutional holders with a total value of $3,101,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 SABBY MANAGEMENT, LLC 690 2,661,000 85.81% Call
2 GROUP ONE TRADING LLC 9,400 363,000 11.71% Call
3 CITADEL ADVISORS LLC 2,000 77,000 2.48% 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.