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

Institutional Holders (2014Q3)
Portfolio Summary: 207 Institutional holders with a total value of $4,727,868,788.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 BAKER BROS. ADVISORS LP 22,475,729 835,648,000 17.67%
2 FMR LLC 18,517,005 688,462,000 14.56%
3 BAILLIE GIFFORD & CO 14,703,706 546,684,000 11.56%
4 PRIMECAP MANAGEMENT CO/CA/ 10,954,900 407,303,000 8.61%
5 VANGUARD GROUP INC 6,083,674 226,190,000 4.78%
6 COLUMBIA WANGER ASSET MANAGEMENT LLC 5,155,000 191,663,000 4.05%
7 CAPITAL GUARDIAN TRUST CO 4,949,060 184,006,000 3.89%
8 WASATCH ADVISORS LP 3,259,240 121,179,000 2.56%
9 WELLINGTON MANAGEMENT GROUP LLP 2,655,747 98,741,000 2.09%
10 BlackRock Institutional Trust Company, N.A. 2,475,160 92,026,000 1.95%
11 PRICE T ROWE ASSOCIATES INC /MD/ 2,337,624 86,913,000 1.84%
12 BlackRock Fund Advisors 2,300,777 85,543,000 1.81%
13 Capital International Investors 2,294,200 85,298,000 1.80%
14 STATE STREET CORP 1,583,890 58,884,000 1.25%
15 OppenheimerFunds, Inc. 1,400,000 52,052,000 1.10%
16 EAGLE ASSET MANAGEMENT INC 1,328,300 49,386,000 1.04%
17 PINNACLE ASSOCIATES LTD 1,304,461 48,500,000 1.03%
18 Invesco Ltd. 1,225,395 45,560,000 0.96%
19 MORGAN STANLEY 1,050,243 39,048,000 0.83%
20 Mitsubishi UFJ Trust & Banking Corp 827,300 30,759,000 0.65%
21 NORGES BANK 806,985 30,003,000 0.63%
22 ROCKEFELLER FINANCIAL SERVICES INC 794,453 29,538,000 0.62%
23 BLACKROCK ADVISORS LLC 756,401 28,123,000 0.59%
24 FEDERATED HERMES, INC. 752,150 27,965,000 0.59%
25 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 746,997 27,773,000 0.59%
26 SUSQUEHANNA INTERNATIONAL GROUP, LLP 701,400 26,078,000 0.55% Put
27 DEUTSCHE BANK AG\ 687,764 25,568,000 0.54%
28 BLAIR WILLIAM & CO/IL 616,829 22,933,000 0.49%
29 SECTORAL ASSET MANAGEMENT INC 609,819 22,673,000 0.48%
30 GEODE CAPITAL MANAGEMENT, LLC 568,987 21,154,000 0.45%
31 GOLDMAN SACHS GROUP INC 525,523 19,539,000 0.41%
32 Capital International Sarl 521,100 19,374,000 0.41%
33 MANNING & NAPIER ADVISORS LLC 485,810 18,061,000 0.38%
34 NORTHERN TRUST CORP 477,623 17,758,000 0.38%
35 CAPITAL INTERNATIONAL LTD /CA/ 468,800 17,430,000 0.37%
36 BANK OF AMERICA CORP /DE/ 466,612 17,348,000 0.37%
37 BROWN ADVISORY INC 442,283 16,444,000 0.35%
38 SUSQUEHANNA INTERNATIONAL GROUP, LLP 427,700 15,902,000 0.34% Call
39 Bank of New York Mellon Corp 380,504 14,146,000 0.30%
40 Capital World Investors 372,000 13,831,000 0.29%
41 BlackRock Group LTD 356,077 13,238,000 0.28%
42 TIAA CREF INVESTMENT MANAGEMENT LLC 310,732 11,553,000 0.24%
43 MACQUARIE GROUP LTD 303,093 11,269,000 0.24%
44 AXA S.A. 282,190 10,492,000 0.22%
45 Capital International, Inc./CA/ 280,700 10,436,000 0.22%
46 COMMONWEALTH BANK OF AUSTRALIA 263,809 9,808,000 0.21%
47 Jefferies Group LLC 239,500 8,905,000 0.19% Call
48 IRONBRIDGE CAPITAL MANAGEMENT LP 234,867 8,732,000 0.18%
49 STATE FARM MUTUAL AUTOMOBILE INSURANCE CO 233,500 8,682,000 0.18%
50 CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM 233,400 8,678,000 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.