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

Institutional Holders (2014Q4)
Portfolio Summary: 173 Institutional holders with a total value of $834,414,439.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 PARNASSUS INVESTMENTS, LLC 2,540,885 126,790,000 15.20%
2 VANGUARD GROUP INC 1,933,767 96,496,000 11.56%
3 BlackRock Fund Advisors 1,541,974 76,945,000 9.22%
4 DUFF & PHELPS INVESTMENT MANAGEMENT CO 800,000 39,920,000 4.78%
5 BlackRock Institutional Trust Company, N.A. 649,443 32,407,000 3.88%
6 STATE STREET CORP 596,225 29,758,000 3.57%
7 DIMENSIONAL FUND ADVISORS LP 571,923 28,540,000 3.42%
8 GABELLI FUNDS LLC 515,352 25,716,000 3.08%
9 Bank of New York Mellon Corp 376,568 18,790,000 2.25%
10 Invesco Ltd. 364,646 18,196,000 2.18%
11 NORTHERN TRUST CORP 319,446 15,941,000 1.91%
12 HENNESSY ADVISORS INC 307,951 15,367,000 1.84%
13 FRANKLIN RESOURCES INC 300,000 14,970,000 1.79%
14 NORGES BANK 271,763 13,561,000 1.63%
15 BANK OF AMERICA CORP /DE/ 266,791 13,313,000 1.60%
16 Fisher Asset Management, LLC 250,787 12,514,000 1.50%
17 OLD REPUBLIC INTERNATIONAL CORP 238,500 11,901,000 1.43%
18 JPMORGAN CHASE & CO 213,372 10,647,000 1.28%
19 CITADEL ADVISORS LLC 190,611 9,512,000 1.14%
20 PHILADELPHIA TRUST CO 181,543 9,059,000 1.09%
21 FIRST TRUST ADVISORS LP 174,535 8,709,000 1.04%
22 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 171,827 8,575,000 1.03%
23 PRINCIPAL FINANCIAL GROUP INC 164,795 8,223,000 0.99%
24 BLACKROCK ADVISORS LLC 159,144 7,941,000 0.95%
25 ACADIA TRUST NA 158,241 7,896,000 0.95%
26 GEODE CAPITAL MANAGEMENT, LLC 156,923 7,830,000 0.94%
27 AMERIPRISE FINANCIAL INC 128,060 6,389,000 0.77%
28 Global X Management CO LLC 127,777 6,376,000 0.76%
29 Clear Harbor Asset Management, LLC 124,616 6,218,000 0.75%
30 TIAA CREF INVESTMENT MANAGEMENT LLC 114,385 5,708,000 0.68%
31 MANUFACTURERS LIFE INSURANCE COMPANY, THE 102,704 5,124,000 0.61%
32 BlackRock Investment Management, LLC 99,463 4,963,000 0.59%
33 CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM 95,270 4,900,000 0.59%
34 NEW YORK STATE TEACHERS RETIREMENT SYSTEM 77,311 3,858,000 0.46%
35 PARAMETRIC PORTFOLIO ASSOCIATES LLC 75,082 3,747,000 0.45%
36 Legal & General Group Plc 73,516 3,672,000 0.44%
37 ANALYTIC INVESTORS, LLC 67,372 3,362,000 0.40%
38 PRUDENTIAL FINANCIAL INC 60,449 3,016,000 0.36%
39 MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC 58,482 2,918,000 0.35%
40 Robert W. Baird & Co. Inc 57,602 2,875,000 0.34%
41 Piermont Capital Management Inc. 55,617 2,775,000 0.33%
42 MORGAN STANLEY 55,520 2,771,000 0.33%
43 NEW YORK STATE COMMON RETIREMENT FUND 52,670 2,628,000 0.31%
44 COMERICA BANK 52,676 2,628,000 0.31%
45 PUBLIC SECTOR PENSION INVESTMENT BOARD 51,171 2,553,000 0.31%
46 DEUTSCHE BANK AG\ 51,038 2,546,000 0.31%
47 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 50,566 2,523,000 0.30%
48 VOYA INVESTMENT MANAGEMENT LLC 47,441 2,367,000 0.28%
49 RHUMBLINE ADVISERS 46,491 2,320,000 0.28%
50 WELLS FARGO & COMPANY/MN 45,405 2,265,000 0.27%
Page 1 of 4

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.