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

Institutional Holders (2015Q3)
Portfolio Summary: 148 Institutional holders with a total value of $1,737,663,603.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 NEA Management Company, LLC 8,854,255 355,056,000 20.43%
2 FMR LLC 6,003,949 240,758,000 13.86%
3 PRICE T ROWE ASSOCIATES INC /MD/ 3,514,838 140,945,000 8.11%
4 WELLINGTON MANAGEMENT GROUP LLP 3,215,553 128,943,000 7.42%
5 VANGUARD GROUP INC 1,884,932 75,585,000 4.35%
6 ORBIMED ADVISORS LLC 1,735,200 69,582,000 4.00%
7 BB BIOTECH AG 1,154,582 46,299,000 2.66%
8 Point72 Asset Management, L.P. 1,111,700 44,579,000 2.57%
9 ALLIANCEBERNSTEIN L.P. 1,034,809 41,496,000 2.39%
10 PERCEPTIVE ADVISORS LLC 981,759 39,368,000 2.27%
11 PUTNAM INVESTMENTS LLC 830,793 33,315,000 1.92%
12 STATE STREET CORP 817,067 32,763,000 1.89%
13 BlackRock Fund Advisors 792,582 31,783,000 1.83%
14 BlackRock Institutional Trust Company, N.A. 696,745 27,939,000 1.61%
15 ALPS ADVISORS INC 62,611 25,107,000 1.44%
16 LORD, ABBETT & CO. LLC 533,687 21,401,000 1.23%
17 FRANKLIN RESOURCES INC 504,100 20,214,000 1.16%
18 ORACLE INVESTMENT MANAGEMENT INC 494,250 19,819,000 1.14%
19 Polar Capital LLP 400,000 16,040,000 0.92%
20 CITIGROUP INC 393,636 15,785,000 0.91%
21 BLACKROCK ADVISORS LLC 391,951 15,717,000 0.90%
22 JENNISON ASSOCIATES LLC 364,420 14,613,000 0.84%
23 EverPoint Asset Management, LLC 360,000 14,436,000 0.83%
24 DEUTSCHE BANK AG\ 352,461 14,131,000 0.81%
25 CITADEL ADVISORS LLC 324,067 12,995,000 0.75%
26 Cormorant Asset Management, LP 291,250 11,679,000 0.67%
27 NORTHERN TRUST CORP 285,790 11,461,000 0.66%
28 MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 283,503 11,368,000 0.65%
29 MACQUARIE GROUP LTD 258,176 10,353,000 0.60%
30 Rock Springs Capital Management LP 226,000 9,063,000 0.52%
31 LOOMIS SAYLES & CO L P 217,809 8,735,000 0.50%
32 MILLENNIUM MANAGEMENT LLC 197,644 7,926,000 0.46%
33 GEODE CAPITAL MANAGEMENT, LLC 179,175 7,184,000 0.41%
34 D. E. Shaw & Co., Inc. 177,238 7,107,000 0.41%
35 AMERIPRISE FINANCIAL INC 172,540 6,920,000 0.40%
36 EVENTIDE ASSET MANAGEMENT, LLC 168,000 6,737,000 0.39%
37 SUSQUEHANNA INTERNATIONAL GROUP, LLP 155,600 6,240,000 0.36% Call
38 BlackRock Group LTD 151,203 6,064,000 0.35%
39 WELLS FARGO & COMPANY/MN 148,757 5,965,000 0.34%
40 GUGGENHEIM CAPITAL LLC 147,393 5,910,000 0.34%
41 Bank of New York Mellon Corp 137,166 5,501,000 0.32%
42 NORGES BANK 135,736 5,443,000 0.31%
43 TEACHERS ADVISORS, LLC 132,072 5,296,000 0.30%
44 COLUMBUS CIRCLE INVESTORS 129,009 5,173,000 0.30%
45 AMUNDI ASSET MANAGEMENT US, INC. 119,231 4,781,000 0.28%
46 SPHERA FUNDS MANAGEMENT LTD. 117,500 4,712,000 0.27%
47 BlackRock Investment Management, LLC 116,365 4,666,000 0.27%
48 TIAA CREF INVESTMENT MANAGEMENT LLC 105,229 4,220,000 0.24%
49 FRED ALGER MANAGEMENT, LLC 97,443 3,907,000 0.22%
50 BARCLAYS PLC 92,000 3,680,000 0.21% Call
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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.