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

Institutional Holders (2015Q3)
Portfolio Summary: 239 Institutional holders with a total value of $5,571,285,903.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 BAKER BROS. ADVISORS LP 36,029,746 1,389,307,000 24.94%
2 FMR LLC 17,163,025 661,806,000 11.88%
3 BAILLIE GIFFORD & CO 17,111,091 659,051,000 11.83%
4 PRIMECAP MANAGEMENT CO/CA/ 12,865,950 496,111,000 8.90%
5 VANGUARD GROUP INC 6,873,711 265,051,000 4.76%
6 FIRST TRUST ADVISORS LP 3,646,425 140,606,000 2.52%
7 PRICE T ROWE ASSOCIATES INC /MD/ 3,505,876 135,187,000 2.43%
8 Artisan Partners Limited Partnership 3,467,125 133,692,000 2.40%
9 CITADEL ADVISORS LLC 3,422,301 131,964,000 2.37%
10 WASATCH ADVISORS LP 2,960,284 114,149,000 2.05%
11 BlackRock Fund Advisors 2,830,806 109,156,000 1.96%
12 BlackRock Institutional Trust Company, N.A. 2,556,644 98,584,000 1.77%
13 COLUMBIA WANGER ASSET MANAGEMENT LLC 1,842,396 71,043,000 1.28%
14 ALPS ADVISORS INC 180,437 69,577,000 1.25%
15 STATE STREET CORP 1,681,774 64,850,000 1.16%
16 OppenheimerFunds, Inc. 1,400,000 53,984,000 0.97%
17 Redmile Group, LLC 1,390,173 53,605,000 0.96%
18 Invesco Ltd. 1,336,959 51,553,000 0.93%
19 SECTORAL ASSET MANAGEMENT INC 1,269,075 48,936,000 0.88%
20 PINNACLE ASSOCIATES LTD 1,251,129 48,244,000 0.87%
21 THORNBURG INVESTMENT MANAGEMENT INC 1,077,121 41,534,000 0.75%
22 DEUTSCHE BANK AG\ 1,026,324 39,571,000 0.71%
23 WELLINGTON MANAGEMENT GROUP LLP 934,572 36,039,000 0.65%
24 MORGAN STANLEY 932,962 35,976,000 0.65%
25 NORGES BANK 883,124 34,053,000 0.61%
26 Mitsubishi UFJ Trust & Banking Corp 830,190 32,012,000 0.57%
27 Lagoda Investment Management, L.P. 636,730 24,552,000 0.44%
28 BLAIR WILLIAM & CO/IL 625,120 24,104,000 0.43%
29 GEODE CAPITAL MANAGEMENT, LLC 618,437 23,846,000 0.43%
30 Bank of New York Mellon Corp 456,949 17,620,000 0.32%
31 NORTHERN TRUST CORP 391,241 15,087,000 0.27%
32 BANK OF AMERICA CORP /DE/ 366,912 14,148,000 0.25%
33 AXA S.A. 356,420 13,744,000 0.25%
34 NEW YORK STATE COMMON RETIREMENT FUND 344,653 13,290,000 0.24%
35 SUSQUEHANNA INTERNATIONAL GROUP, LLP 299,600 11,553,000 0.21% Put
36 EAGLE ASSET MANAGEMENT INC 297,245 11,461,000 0.21%
37 CHILTON INVESTMENT CO INC. 293,416 11,315,000 0.20%
38 TIAA CREF INVESTMENT MANAGEMENT LLC 292,054 11,262,000 0.20%
39 CREDIT SUISSE AG/ 272,914 10,523,000 0.19%
40 GUGGENHEIM CAPITAL LLC 272,156 10,494,000 0.19%
41 CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM 258,400 9,964,000 0.18%
42 MANNING & NAPIER ADVISORS LLC 252,470 9,734,000 0.17%
43 LORD, ABBETT & CO. LLC 251,123 9,683,000 0.17%
44 BLACKROCK ADVISORS LLC 240,099 9,258,000 0.17%
45 ROYAL BANK OF CANADA 229,461 8,848,000 0.16%
46 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 216,347 8,343,000 0.15%
47 MILLENNIUM MANAGEMENT LLC 212,484 8,193,000 0.15%
48 SUSQUEHANNA INTERNATIONAL GROUP, LLP 211,621 8,160,000 0.15%
49 MACQUARIE GROUP LTD 196,351 7,571,000 0.14%
50 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 192,324 7,416,000 0.13%
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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.