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TESARO INC
TESARO INC. Institutional holdings reported to the SEC.

Institutional Holders (2014Q4)
Portfolio Summary: 24 Institutional holders with a total value of $989,700,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 SABBY MANAGEMENT, LLC 6,000,000 747,750,000 75.55%
2 DEERFIELD MANAGEMENT COMPANY, L.P. 27,123,000 34,005,000 3.44% PRN
3 WOLVERINE ASSET MANAGEMENT LLC 20,125,000 25,274,000 2.55% PRN
4 CITADEL ADVISORS LLC 20,000,000 25,025,000 2.53% PRN
5 BlueCrest Capital Management Ltd 18,018,000 23,150,000 2.34% PRN
6 Castle Creek Arbitrage, LLC 17,027,000 21,372,000 2.16% PRN
7 Polar Asset Management Partners Inc. 15,000,000 18,839,000 1.90% PRN
8 ARISTEIA CAPITAL, L.L.C. 15,000,000 18,810,000 1.90% PRN
9 DEUTSCHE BANK AG\ 10,900,000 13,584,000 1.37% PRN
10 ROYAL BANK OF CANADA 8,420,000 10,493,000 1.06% PRN
11 CSS LLC/IL 7,750,000 9,721,000 0.98% PRN
12 Jefferies Group LLC 6,215,000 7,745,000 0.78% PRN
13 LAZARD ASSET MANAGEMENT LLC 4,500,000 5,608,000 0.57% PRN
14 AVIVA PLC 4,000,000 4,990,000 0.50% PRN
15 SSI INVESTMENT MANAGEMENT LLC 3,968,000 4,945,000 0.50%
16 Jabre Capital Partners S.A. 3,000,000 3,834,000 0.39% PRN
17 Verition Fund Management LLC 3,000,000 3,754,000 0.38% PRN
18 Mohican Financial Management, LLC 3,000,000 3,739,000 0.38%
19 ALTEGRIS ADVISORS, L.L.C. 2,000,000 2,493,000 0.25%
20 NOMURA HOLDINGS INC 1,125,000 1,402,000 0.14% PRN
21 CITIGROUP INC 1,000,000 1,246,000 0.13% PRN
22 Man Investments (CH) AG 700,000 889,000 0.09% PRN
23 RUSSELL FRANK CO/ 600,000 743,000 0.08%
24 WELLINGTON MANAGEMENT GROUP LLP 232,000 289,000 0.03% PRN

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.