GRIFFIN ASSET MANAGEMENT, INC.

Holdings History for NORTHWEST NAT GAS CO - COM (NWN)

Symbol: NWN on NYSE
Investment type: Equity / COM

Shares, Excluding Options vs Price

Value, Excluding Options

Holdings date	Weight	Change	Value $	Shares	Change	Activity %	Price	All Holders
30 Sep 2019		-0.35%	$0	0	-40,000	-100%		Q3 2019
30 Jun 2019	0.35%	0%	$2,780,000	40,000	0		$69.50	Q2 2019
31 Mar 2019	0.37%	0%	$2,625,000	40,000	0		$65.62	Q1 2019
31 Dec 2018	0.41%	0%	$2,418,000	40,000	0		$60.45	Q4 2018
30 Sep 2018	0.39%	0%	$2,676,000	40,000	0		$66.90	Q3 2018
30 Jun 2018	0.46%	0%	$2,552,000	40,000	0		$63.80	Q2 2018
31 Mar 2018	0.42%	0%	$2,306,000	40,000	0		$57.65	Q1 2018
31 Dec 2017	0.42%	0%	$2,386,000	40,000	0		$59.65	Q4 2017
30 Sep 2017	0.47%	0%	$2,576,000	40,000	0		$64.40	Q3 2017
30 Jun 2017	0.64%	0%	$2,394,000	40,000	0		$59.85	Q2 2017

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.