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

Institutional Holders (2014Q4)
Portfolio Summary: 114 Institutional holders with a total value of $1,340,280,429.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 NEA Management Company, LLC 9,854,255 366,480,000 27.34%
2 WELLINGTON MANAGEMENT GROUP LLP 5,022,323 186,780,000 13.94%
3 PRICE T ROWE ASSOCIATES INC /MD/ 2,530,539 94,111,000 7.02%
4 ALLIANCEBERNSTEIN L.P. 1,346,499 50,076,000 3.74%
5 ORBIMED ADVISORS LLC 1,330,000 49,463,000 3.69%
6 FMR LLC 1,225,894 45,591,000 3.40%
7 HealthCor Management, L.P. 1,050,000 39,050,000 2.91%
8 VANGUARD GROUP INC 976,145 36,303,000 2.71%
9 PERCEPTIVE ADVISORS LLC 883,359 32,852,000 2.45%
10 MILLENNIUM MANAGEMENT LLC 777,073 28,899,000 2.16%
11 STATE STREET CORP 732,377 27,238,000 2.03%
12 BlackRock Fund Advisors 722,474 26,869,000 2.00%
13 BB BIOTECH AG 704,582 26,203,000 1.96%
14 FRANKLIN RESOURCES INC 632,600 23,526,000 1.76%
15 Point72 Asset Management, L.P. 616,409 22,924,000 1.71%
16 GOLDMAN SACHS GROUP INC 557,191 20,722,000 1.55%
17 ORACLE INVESTMENT MANAGEMENT INC 556,379 20,692,000 1.54%
18 LOOMIS SAYLES & CO L P 451,183 16,779,000 1.25%
19 BlackRock Institutional Trust Company, N.A. 336,128 12,501,000 0.93%
20 MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 335,466 12,475,980 0.93%
21 PUTNAM INVESTMENTS LLC 334,543 12,442,000 0.93%
22 DEUTSCHE BANK AG\ 330,355 12,284,000 0.92%
23 Cormorant Asset Management, LP 300,000 11,157,000 0.83%
24 CITIGROUP INC 288,723 10,738,000 0.80%
25 NORTHERN TRUST CORP 253,400 9,424,000 0.70%
26 AMERIPRISE FINANCIAL INC 227,010 8,441,000 0.63%
27 COLUMBUS CIRCLE INVESTORS 209,009 7,773,000 0.58%
28 WELLS FARGO & COMPANY/MN 205,773 7,653,000 0.57%
29 Rock Springs Capital Management LP 187,500 6,973,000 0.52%
30 OXFORD ASSET MANAGEMENT LLP 166,081 6,262,000 0.47%
31 LORD, ABBETT & CO. LLC 149,141 5,547,000 0.41%
32 FRED ALGER MANAGEMENT, LLC 145,692 5,418,000 0.40%
33 Candriam S.C.A. 136,000 5,058,000 0.38%
34 AMUNDI ASSET MANAGEMENT US, INC. 128,671 4,785,000 0.36%
35 TEACHERS ADVISORS, LLC 125,858 4,681,000 0.35%
36 CLOUGH CAPITAL PARTNERS L P 120,300 4,474,000 0.33%
37 TIAA CREF INVESTMENT MANAGEMENT LLC 118,347 4,401,000 0.33%
38 GEODE CAPITAL MANAGEMENT, LLC 118,056 4,390,000 0.33%
39 GUGGENHEIM CAPITAL LLC 107,064 3,982,000 0.30%
40 EverPoint Asset Management, LLC 100,000 3,719,000 0.28%
41 Bank of New York Mellon Corp 99,632 3,705,000 0.28%
42 SUFFOLK CAPITAL MANAGEMENT LLC 78,300 2,912,000 0.22%
43 EVENTIDE ASSET MANAGEMENT, LLC 75,000 2,789,000 0.21%
44 MASON STREET ADVISORS, LLC 68,400 2,544,000 0.19%
45 MACQUARIE GROUP LTD 64,795 2,410,000 0.18%
46 SUSQUEHANNA INTERNATIONAL GROUP, LLP 63,970 2,379,000 0.18%
47 TD ASSET MANAGEMENT INC 63,006 2,343,000 0.17%
48 Rhenman & Partners Asset Management AB 62,651 2,330,000 0.17%
49 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 57,069 2,123,000 0.16%
50 BlackRock Investment Management, LLC 52,308 1,945,000 0.15%
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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.