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NORTHWEST NAT GAS CO
NORTHWEST NAT GAS CO. Institutional holdings reported to the SEC.

Institutional Holders (2015Q2)
Portfolio Summary: 176 Institutional holders with a total value of $697,940,733.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 PARNASSUS INVESTMENTS, LLC 2,564,785 108,183,000 15.50%
2 VANGUARD GROUP INC 2,048,503 86,406,000 12.38%
3 BlackRock Fund Advisors 1,585,640 66,882,000 9.58%
4 DUFF & PHELPS INVESTMENT MANAGEMENT CO 800,000 33,744,000 4.83%
5 BlackRock Institutional Trust Company, N.A. 681,973 28,766,000 4.12%
6 DIMENSIONAL FUND ADVISORS LP 660,915 27,878,000 3.99%
7 STATE STREET CORP 615,067 25,943,000 3.72%
8 GABELLI FUNDS LLC 468,000 19,740,000 2.83%
9 Bank of New York Mellon Corp 384,719 16,228,000 2.33%
10 Invesco Ltd. 349,615 14,747,000 2.11%
11 JPMORGAN CHASE & CO 323,674 13,653,000 1.96%
12 HENNESSY ADVISORS INC 309,951 13,074,000 1.87%
13 NORTHERN TRUST CORP 297,920 12,566,000 1.80%
14 BANK OF AMERICA CORP /DE/ 289,233 12,200,000 1.75%
15 NORGES BANK 271,763 11,463,000 1.64%
16 OLD REPUBLIC INTERNATIONAL CORP 249,500 10,524,000 1.51%
17 Fisher Asset Management, LLC 241,737 10,196,000 1.46%
18 FIRST TRUST ADVISORS LP 202,507 8,542,000 1.22%
19 PRINCIPAL FINANCIAL GROUP INC 166,500 7,023,000 1.01%
20 GEODE CAPITAL MANAGEMENT, LLC 165,525 6,981,000 1.00%
21 BLACKROCK ADVISORS LLC 162,175 6,841,000 0.98%
22 ACADIA TRUST NA 160,864 6,785,000 0.97%
23 Global X Management CO LLC 138,905 5,859,000 0.84%
24 AMERIPRISE FINANCIAL INC 138,111 5,825,000 0.83%
25 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 127,942 5,397,000 0.77%
26 Clear Harbor Asset Management, LLC 120,291 5,074,000 0.73%
27 PARAMETRIC PORTFOLIO ASSOCIATES LLC 110,874 4,677,000 0.67%
28 BlackRock Investment Management, LLC 110,334 4,654,000 0.67%
29 TIAA CREF INVESTMENT MANAGEMENT LLC 96,570 4,073,000 0.58%
30 MANUFACTURERS LIFE INSURANCE COMPANY, THE 90,909 3,834,000 0.55%
31 Legal & General Group Plc 89,010 3,756,000 0.54%
32 DEUTSCHE BANK AG\ 86,476 3,647,000 0.52%
33 NEW YORK STATE TEACHERS RETIREMENT SYSTEM 77,311 3,261,000 0.47%
34 RENAISSANCE TECHNOLOGIES LLC 77,026 3,249,000 0.47%
35 NEW YORK STATE COMMON RETIREMENT FUND 76,134 3,211,000 0.46%
36 CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM 67,500 2,847,000 0.41%
37 CITADEL ADVISORS LLC 62,955 2,655,000 0.38%
38 PRUDENTIAL FINANCIAL INC 62,189 2,623,000 0.38%
39 CREDIT SUISSE AG/ 57,639 2,432,000 0.35%
40 Robeco Schweiz AG 56,000 2,392,000 0.34%
41 COMERICA BANK 55,252 2,330,000 0.33%
42 MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC 53,500 2,257,000 0.32%
43 ANALYTIC INVESTORS, LLC 52,107 2,198,000 0.31%
44 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 49,920 2,106,000 0.30%
45 TEACHERS ADVISORS, LLC 47,434 2,001,000 0.29%
46 VOYA INVESTMENT MANAGEMENT LLC 47,441 2,001,000 0.29%
47 RHUMBLINE ADVISERS 47,041 1,984,000 0.28%
48 MORGAN STANLEY 46,931 1,980,000 0.28%
49 BlackRock Group LTD 43,780 1,847,000 0.26%
50 PUBLIC SECTOR PENSION INVESTMENT BOARD 42,163 1,778,000 0.25%
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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.