MorningStar: looks like Sabby sold a portion of their holdings based on below from MorningStar.
Name Ownership Trend
Previous 8 Qtrs Shares Change % Total
Shares Held % Total
Assets Date
Franklin Advisers, Inc. Premium 2,515,944 341,800 4.59 0.01 03/31/2014
Sabby Management LLC Premium 2,054,200 -913,282 4.50 0 12/31/2013
Vanguard Group, Inc. Premium 847,628 134,370 1.55 0 03/31/2014
Goldman, Sachs & Co. Premium 610,702 -9,998 1.11 0 03/31/2014
Royal Bank Of Canada Premium 518,566 335 0.95 0 03/31/2014
Knoll Capital Management LP Premium 200,300 200,300 0.37 0.75 03/31/2014
Allianz Global Investors 1 Premium 187,500 0 0.34 0.01 03/31/2014
JANE STREET GROUP, LLC Premium 184,429 184,429 0.34 0.01 03/31/2014
Credit Suisse First Boston (CSFB) Premium 182,349 -91,967 0.33 0 03/31/2014
Geode Capital Management, LLC Premium 157,725 61,532 0.29 0 03/31/2014
Total: Top 10 institutions Premium 7,459,343 -92,481 14.37
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Peer Comparison
NWBO
Equity Ownership NWBO
Market Cap (Mil USD) 363 --- --- ---
# of Institution Owners 78 --- --- ---
# of Fund Owners 56 --- --- ---
% Owned by Institutions 16.69 --- --- ---
% Owned by Funds 7.92 --- --- ---
% Owned by Insiders 5.39 ---