Dark
Light
System
Security
NORTHWEST NAT GAS CO
NORTHWEST NAT GAS CO. Institutional holdings reported to the SEC.

Institutional Holders (2016Q3)
Portfolio Summary: 217 Institutional holders with a total value of $1,034,013,878.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 VANGUARD GROUP INC 2,454,918 147,565,000 14.27%
2 BlackRock Fund Advisors 1,958,422 117,721,000 11.38%
3 DIMENSIONAL FUND ADVISORS LP 843,863 50,725,000 4.91%
4 DUFF & PHELPS INVESTMENT MANAGEMENT CO 800,000 48,088,000 4.65%
5 BlackRock Institutional Trust Company, N.A. 681,364 40,957,000 3.96%
6 STATE STREET CORP 592,974 35,638,000 3.45%
7 Invesco Ltd. 479,541 28,825,000 2.79%
8 GABELLI FUNDS LLC 451,000 27,110,000 2.62%
9 Bank of New York Mellon Corp 435,978 26,206,000 2.53%
10 JPMORGAN CHASE & CO 407,829 24,515,000 2.37%
11 PARNASSUS INVESTMENTS, LLC 397,500 23,894,000 2.31%
12 NORGES BANK 414,876 23,819,000 2.30%
13 NORTHERN TRUST CORP 324,508 19,506,000 1.89%
14 RENAISSANCE TECHNOLOGIES LLC 249,300 14,985,000 1.45%
15 FIRST TRUST ADVISORS LP 242,930 14,603,000 1.41%
16 Fisher Asset Management, LLC 237,383 14,269,000 1.38%
17 HENNESSY ADVISORS INC 234,286 14,083,000 1.36%
18 GEODE CAPITAL MANAGEMENT, LLC 219,407 13,188,000 1.28%
19 PRINCIPAL FINANCIAL GROUP INC 211,097 12,689,000 1.23%
20 Robeco Institutional Asset Management B.V. 202,783 12,190,000 1.18%
21 AMERIPRISE FINANCIAL INC 195,828 11,770,000 1.14%
22 OLD REPUBLIC INTERNATIONAL CORP 263,300 11,606,000 1.12%
23 MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC 159,289 9,575,000 0.93%
24 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 152,357 9,159,000 0.89%
25 PARAMETRIC PORTFOLIO ASSOCIATES LLC 142,167 8,546,000 0.83%
26 BLACKROCK ADVISORS LLC 141,977 8,534,000 0.83%
27 ACADIA TRUST NA 141,219 8,488,000 0.82%
28 Numeric Investors LLC 136,934 8,231,000 0.80%
29 MORGAN STANLEY 131,324 7,893,000 0.76%
30 BlackRock Investment Management, LLC 123,630 7,431,000 0.72%
31 Global X Management CO LLC 123,303 7,412,000 0.72%
32 BESSEMER GROUP INC 120,251 7,228,000 0.70%
33 AQR CAPITAL MANAGEMENT LLC 114,485 6,882,000 0.67%
34 DEUTSCHE BANK AG\ 112,095 6,736,000 0.65%
35 TIAA CREF INVESTMENT MANAGEMENT LLC 111,936 6,728,000 0.65%
36 MILLENNIUM MANAGEMENT LLC 110,144 6,621,000 0.64%
37 Robeco Schweiz AG 106,000 6,410,000 0.62%
38 Legal & General Group Plc 104,625 6,290,000 0.61%
39 BANK OF AMERICA CORP /DE/ 104,212 6,264,000 0.61%
40 MARTINGALE ASSET MANAGEMENT L P 103,318 6,211,000 0.60%
41 Clear Harbor Asset Management, LLC 91,043 5,473,000 0.53%
42 JACOBS LEVY EQUITY MANAGEMENT, INC 82,751 4,974,000 0.48%
43 GOLDMAN SACHS GROUP INC 81,911 4,924,000 0.48%
44 NEW YORK STATE TEACHERS RETIREMENT SYSTEM 79,911 4,803,000 0.46%
45 EMERALD ACQUISITION LTD. 71,838 4,318,000 0.42%
46 ANALYTIC INVESTORS, LLC 71,390 4,291,000 0.41%
47 TWO SIGMA ADVISERS, LP 69,298 4,166,000 0.40%
48 CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM 67,700 4,069,000 0.39%
49 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 57,578 3,461,000 0.33%
50 TEACHERS ADVISORS, LLC 53,613 3,223,000 0.31%
Page 1 of 5

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.