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SEATTLE GENETICS INC
SEATTLE GENETICS INC. Institutional holdings reported to the SEC.

Institutional Holders (2014Q4)
Portfolio Summary: 227 Institutional holders with a total value of $4,111,764,185.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 BAKER BROS. ADVISORS LP 27,861,720 895,197,000 21.77%
2 FMR LLC 18,583,562 597,090,000 14.52%
3 BAILLIE GIFFORD & CO 15,238,601 489,617,000 11.91%
4 PRIMECAP MANAGEMENT CO/CA/ 11,178,050 359,151,000 8.73%
5 VANGUARD GROUP INC 6,165,667 198,102,000 4.82%
6 COLUMBIA WANGER ASSET MANAGEMENT LLC 4,474,100 143,753,000 3.50%
7 WASATCH ADVISORS LP 3,574,655 114,854,000 2.79%
8 BlackRock Institutional Trust Company, N.A. 2,516,876 80,867,000 1.97%
9 BlackRock Fund Advisors 2,288,741 73,537,000 1.79%
10 FIRST TRUST ADVISORS LP 1,794,046 57,643,000 1.40%
11 STATE STREET CORP 1,687,104 54,204,000 1.32%
12 PRICE T ROWE ASSOCIATES INC /MD/ 1,487,354 47,789,000 1.16%
13 MORGAN STANLEY 1,421,587 45,674,000 1.11%
14 OppenheimerFunds, Inc. 1,400,000 44,982,000 1.09%
15 PINNACLE ASSOCIATES LTD 1,370,706 44,041,000 1.07%
16 EAGLE ASSET MANAGEMENT INC 1,344,297 43,192,000 1.05%
17 Invesco Ltd. 1,325,748 42,596,000 1.04%
18 CITADEL ADVISORS LLC 1,179,981 37,913,000 0.92%
19 SECTORAL ASSET MANAGEMENT INC 1,104,075 35,474,000 0.86%
20 Redmile Group, LLC 983,966 31,615,000 0.77%
21 CAPITAL GUARDIAN TRUST CO 1,002,778 31,247,000 0.76%
22 NORGES BANK 948,636 30,480,000 0.74%
23 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 907,697 29,164,000 0.71%
24 Mitsubishi UFJ Trust & Banking Corp 809,610 26,013,000 0.63%
25 MILLENNIUM MANAGEMENT LLC 800,479 25,719,000 0.63%
26 ASCEND CAPITAL, LLC 750,000 24,098,000 0.59%
27 DEUTSCHE BANK AG\ 688,791 22,128,000 0.54%
28 BLAIR WILLIAM & CO/IL 628,452 20,192,000 0.49%
29 WELLINGTON MANAGEMENT GROUP LLP 609,562 19,585,000 0.48%
30 GEODE CAPITAL MANAGEMENT, LLC 555,125 17,835,000 0.43%
31 Lagoda Investment Management, L.P. 545,426 17,525,000 0.43%
32 GOLDMAN SACHS GROUP INC 503,694 16,184,000 0.39%
33 MANNING & NAPIER ADVISORS LLC 485,810 15,608,000 0.38%
34 FEDERATED HERMES, INC. 446,950 14,360,000 0.35%
35 NORTHERN TRUST CORP 416,751 13,391,000 0.33%
36 BANK OF AMERICA CORP /DE/ 404,500 12,996,000 0.32%
37 Bank of New York Mellon Corp 380,277 12,219,000 0.30%
38 SUSQUEHANNA INTERNATIONAL GROUP, LLP 357,100 11,474,000 0.28% Put
39 AXA S.A. 350,575 11,264,000 0.27%
40 SUSQUEHANNA INTERNATIONAL GROUP, LLP 339,119 10,896,000 0.26%
41 TIAA CREF INVESTMENT MANAGEMENT LLC 319,760 10,274,000 0.25%
42 JACOBS LEVY EQUITY MANAGEMENT, INC 307,800 9,890,000 0.24%
43 Jupiter Investment Management Ltd 294,400 9,459,000 0.23%
44 CREDIT SUISSE AG/ 282,337 9,071,000 0.22%
45 IRONBRIDGE CAPITAL MANAGEMENT LP 261,564 8,404,000 0.20%
46 VOYA INVESTMENT MANAGEMENT LLC 253,642 8,150,000 0.20%
47 GUGGENHEIM CAPITAL LLC 247,966 7,967,000 0.19%
48 CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM 233,400 7,749,000 0.19%
49 COMMONWEALTH BANK OF AUSTRALIA 237,994 7,647,000 0.19%
50 STATE FARM MUTUAL AUTOMOBILE INSURANCE CO 233,500 7,502,000 0.18%
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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.