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

Institutional Holders (2015Q2)
Portfolio Summary: 235 Institutional holders with a total value of $6,214,502,811.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 BAKER BROS. ADVISORS LP 30,870,262 1,494,121,000 24.04%
2 FMR LLC 18,724,654 906,274,000 14.58%
3 BAILLIE GIFFORD & CO 15,161,292 733,806,000 11.81%
4 PRIMECAP MANAGEMENT CO/CA/ 11,899,100 575,916,000 9.27%
5 VANGUARD GROUP INC 6,230,220 301,543,000 4.85%
6 FIRST TRUST ADVISORS LP 3,216,228 155,665,000 2.50%
7 WASATCH ADVISORS LP 3,034,022 146,847,000 2.36%
8 PRICE T ROWE ASSOCIATES INC /MD/ 2,720,256 131,660,000 2.12%
9 BlackRock Fund Advisors 2,562,671 124,033,000 2.00%
10 BlackRock Institutional Trust Company, N.A. 2,471,594 119,625,000 1.92%
11 COLUMBIA WANGER ASSET MANAGEMENT LLC 2,355,005 113,982,000 1.83%
12 Artisan Partners Limited Partnership 2,002,164 96,905,000 1.56%
13 STATE STREET CORP 1,616,012 78,214,000 1.26%
14 OppenheimerFunds, Inc. 1,400,000 67,760,000 1.09%
15 PINNACLE ASSOCIATES LTD 1,334,136 64,572,000 1.04%
16 Invesco Ltd. 1,329,486 64,347,000 1.04%
17 SECTORAL ASSET MANAGEMENT INC 1,262,075 61,084,000 0.98%
18 MORGAN STANLEY 987,386 47,790,000 0.77%
19 NORGES BANK 931,041 45,062,000 0.73%
20 WELLINGTON MANAGEMENT GROUP LLP 865,627 41,897,000 0.67%
21 DEUTSCHE BANK AG\ 849,192 41,098,000 0.66%
22 Mitsubishi UFJ Trust & Banking Corp 753,050 36,448,000 0.59%
23 Lagoda Investment Management, L.P. 626,236 30,310,000 0.49%
24 BLAIR WILLIAM & CO/IL 597,728 28,930,000 0.47%
25 GEODE CAPITAL MANAGEMENT, LLC 591,812 28,643,000 0.46%
26 Redmile Group, LLC 529,199 25,613,000 0.41%
27 THORNBURG INVESTMENT MANAGEMENT INC 519,983 25,167,000 0.40%
28 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 478,643 23,166,000 0.37%
29 BANK OF AMERICA CORP /DE/ 411,774 19,930,000 0.32%
30 AXA S.A. 409,525 19,821,000 0.32%
31 NORTHERN TRUST CORP 408,277 19,761,000 0.32%
32 Bank of New York Mellon Corp 407,578 19,727,000 0.32%
33 EAGLE ASSET MANAGEMENT INC 388,173 18,787,000 0.30%
34 CREDIT SUISSE AG/ 323,293 15,647,000 0.25%
35 LORD, ABBETT & CO. LLC 306,102 14,815,000 0.24%
36 TIAA CREF INVESTMENT MANAGEMENT LLC 292,719 14,168,000 0.23%
37 GUGGENHEIM CAPITAL LLC 292,125 14,139,000 0.23%
38 SUSQUEHANNA INTERNATIONAL GROUP, LLP 279,300 13,518,000 0.22% Put
39 VOYA INVESTMENT MANAGEMENT LLC 268,104 12,976,000 0.21%
40 MANNING & NAPIER ADVISORS LLC 252,470 12,218,000 0.20%
41 ROYAL BANK OF CANADA 251,679 12,181,000 0.20%
42 SUSQUEHANNA INTERNATIONAL GROUP, LLP 250,003 12,101,000 0.19%
43 CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM 233,400 11,297,000 0.18%
44 BLACKROCK ADVISORS LLC 231,156 11,188,000 0.18%
45 VAN ECK ASSOCIATES CORP 215,755 10,443,000 0.17%
46 MACQUARIE GROUP LTD 200,400 9,699,000 0.16%
47 BVF INC/IL 200,000 9,680,000 0.16%
48 GOLDMAN SACHS GROUP INC 198,635 9,614,000 0.15%
49 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 194,813 9,429,000 0.15%
50 Allianz Asset Management GmbH 192,400 9,312,000 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.