NWN

SEC source: 0001567619-19-006400 · doc1.xml · derivative · entry 10

ANDERSON DAVID HUGO · CIK 0001241405 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 8,000 shares

Expires 2020-03-02

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · price: Options were granted as part of compensation for services. The options were exercised as a cashless exercise.

F8 · derivative.exercise_date: The options vested in four equal installments on each of February 24, 2011, and January 1, 2012, 2013 and 2014.

SEC source: 0001567619-19-006400 · doc1.xml · derivative · entry 9

ANDERSON DAVID HUGO · CIK 0001241405 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 11,000 shares

Expires 2021-03-02

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · price: Options were granted as part of compensation for services. The options were exercised as a cashless exercise.

F7 · derivative.exercise_date: The options vested in four equal installments on each of February 23, 2012, and January 1, 2013, 2014 and 2015.

SEC source: 0001567619-19-006400 · doc1.xml · nonDerivative · entry 4

ANDERSON DAVID HUGO · CIK 0001241405 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 82,132.958

F1 · price: This transaction was executed in multiple trades for an aggregate of 19,000 shares on reported date with prices ranging from $64.34 to $65.59, resulting in an average price of $64.9353. Northwest Natural Holding Company ("Issuer") will provide upon request by the Commission staff of a security holder of the Issuer full information regarding the number of shares purchased or sold at each separate price.

SEC source: 0001567619-19-006400 · doc1.xml · nonDerivative · entry 3

ANDERSON DAVID HUGO · CIK 0001241405 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 90,132.958

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001567619-19-006400 · doc1.xml · nonDerivative · entry 2

ANDERSON DAVID HUGO · CIK 0001241405 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 82,132.958

F1 · price: This transaction was executed in multiple trades for an aggregate of 19,000 shares on reported date with prices ranging from $64.34 to $65.59, resulting in an average price of $64.9353. Northwest Natural Holding Company ("Issuer") will provide upon request by the Commission staff of a security holder of the Issuer full information regarding the number of shares purchased or sold at each separate price.

SEC source: 0001567619-19-006400 · doc1.xml · nonDerivative · entry 1

ANDERSON DAVID HUGO · CIK 0001241405 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 93,132.958

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001567619-19-006272 · doc1.xml · nonDerivative · entry 1

GIBSON C SCOTT · CIK 0001192754 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 339

F1 · price: This transaction was executed in multiple trades on the reported date at $65.308.

F2 · balance_after: Includes 339 restricted stock units (RSUs) granted in accordance with the Northwest Natural Gas Company Compensation Policy for Non-employee Directors. These RSUs vest on May 24, 2019.

SEC source: 0001567619-19-006274 · doc1.xml · nonDerivative · entry 1

Wilhoite Charles A. · CIK 0001749674 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 592.115

F1 · ownership.nature: Shares have been credited to reporting person's account under issuer's Deferred Compensation Plan for Directors and Executives.

SEC source: 0001567619-20-003062 · doc1.xml · nonDerivative · entry 1

Thrasher Kenneth · CIK 0001319835 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 105

SEC source: 0001567619-19-005645 · doc1.xml · nonDerivative · entry 1

DOWNING JAMES R · CIK 0001717381 · VP and CIO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,872

F1 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2018 under restricted stock unit awards. Organization and Executive Compensation Committee certification of the satisfaction of the performance threshold occurred on the transaction date.

F2 · balance_after: Includes 3,680 time-based restricted stock units (RSUs) granted under Issuer's Long Term Incentive Plan. The RSUs vest in four installments: 920 shares on each March 1, 2019, 2020, 2021 and 2022.

SEC source: 0001567619-19-005655 · doc1.xml · nonDerivative · entry 1

Palfreyman Justin · CIK 0001686243 · VP Strategy & Bus Dev

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,380

F1 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2018 under restricted stock unit awards. Organization and Executive Compensation Committee certification of the satisfaction of the performance threshold occurred on the transaction date.

F2 · balance_after: Includes 2,064 time-based restricted stock units (RSUs) granted under issuer's Long Term Incentive Plan. The RSUs vest in three installments: 516 shares on each March 1, 2019 and 2020, and 1,032 shares on March 1, 2021.

SEC source: 0001567619-19-005659 · doc1.xml · nonDerivative · entry 4

Russell Lori L · CIK 0001671699 · VP, Utility Services

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 1,371.622

F5 · shares: Shares are issuable as a result of satisfaction of performance goals for 2016-2018 under a performance share award, and credited to reporting person's account under Northwest Natural Gas Company's Deferred Compensation Plan for Directors and Executives pursuant to a prior election. Organization and Executive Compensation Committee certification of the award payout level occurred on the transaction date.

F3 · ownership.nature: Shares have been credited to the reporting person's account under Northwest Natural Gas Company's Deferred Compensation Plan for Directors and Executives.

SEC source: 0001567619-19-005659 · doc1.xml · nonDerivative · entry 3

Russell Lori L · CIK 0001671699 · VP, Utility Services

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,735.6904

F4 · shares: Shares are issuable as a result of satisfaction of performance goals for 2016-2018 under a performance share award. Organization and Executive Compensation Committee certification of the award payout level occurred on the transaction date.

SEC source: 0001567619-19-005659 · doc1.xml · nonDerivative · entry 2

Russell Lori L · CIK 0001671699 · VP, Utility Services

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 1,258.622

F2 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2018 under restricted stock unit awards, and credited to reporting person's account under Northwest Natural Gas Company's Deferred Compensation Plan for Directors and Executives pursuant to a prior election. Organization and Executive Compensation Committee certification of the satisfaction of the performance threshold occurred on the transaction date.

F3 · ownership.nature: Shares have been credited to the reporting person's account under Northwest Natural Gas Company's Deferred Compensation Plan for Directors and Executives.

SEC source: 0001567619-19-005659 · doc1.xml · nonDerivative · entry 1

Russell Lori L · CIK 0001671699 · VP, Utility Services

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,721.6904

F1 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2018 under restricted stock unit awards. Organization and Executive Compensation Committee certification of the satisfaction of the performance threshold occurred on the transaction date.

SEC source: 0001567619-19-005653 · doc1.xml · nonDerivative · entry 3

Imeson Thomas J · CIK 0001605072 · VP, Public Affairs

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,384.168

F5 · shares: Shares are issuable as a result of satisfaction of performance goals for 2016-2018 under a performance share award. Organization and Executive Compensation Committee certification of the award payout level occurred on the transaction date.

SEC source: 0001567619-19-005653 · doc1.xml · nonDerivative · entry 2

Imeson Thomas J · CIK 0001605072 · VP, Public Affairs

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 3,821.992

F3 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2018 under restricted stock unit award, and credited to reporting person's account under Northwest Natural Gas Company's Deferred Compensation Plan for Directors and Executives pursuant to a prior election. Organization and Executive Compensation Committee certification of the satisfaction of the performance threshold occurred on the transaction date.

F4 · ownership.nature: Shares have been credited to the reporting person's account under Northwest Natural Gas Company's Deferred Compensation Plan for Directors and Executives.

SEC source: 0001567619-19-005653 · doc1.xml · nonDerivative · entry 1

Imeson Thomas J · CIK 0001605072 · VP, Public Affairs

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,882.168

F1 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2018 under restricted stock unit awards. Organization and Executive Compensation Committee certification of the satisfaction of the performance threshold occurred on the transaction date.

F2 · balance_after: Includes 1,151 time-based restricted stock units (RSUs) granted under issuer's Long Term Incentive Plan. The RSUs vest on March 31, 2019.

SEC source: 0001567619-19-005661 · doc1.xml · nonDerivative · entry 4

Saathoff MardiLyn · CIK 0001445672 · SVP, General Counsel & Reg.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 7,073.455

F6 · shares: Shares are issuable as a result of satisfaction of performance goals for 2016-2018 under a performance share award, and credited to reporting person's account under Northwest Natural Gas Company's Deferred Compensation Plan for Directors and Executives pursuant to a prior election. Organization and Executive Compensation Committee certification of the award payout level occurred on the transaction date.

F4 · ownership.nature: Shares have been credited to reporting person's account under Northwest Natural Gas Company's Deferred Compensation Plan for Directors and Executives.

SEC source: 0001567619-19-005661 · doc1.xml · nonDerivative · entry 3

Saathoff MardiLyn · CIK 0001445672 · SVP, General Counsel & Reg.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,061.0855

F5 · shares: Shares are issuable as a result of satisfaction of performance goals for 2016-2018 under a performance share award. Organization and Executive Compensation Committee certification of the award payout level occurred on transaction date.

F2 · balance_after: Includes 3,100 time-based restricted stock units (RSUs) granted under issuer's Long Term Incentive Plan. The 3,100 RSUs vest in three installments: 775 shares on each March 1, 2019 and 2020, and 1,550 shares on March 1, 2021.

SEC source: 0001567619-19-005661 · doc1.xml · nonDerivative · entry 2

Saathoff MardiLyn · CIK 0001445672 · SVP, General Counsel & Reg.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 6,620.455

F3 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2018 under restricted stock unit awards, and credited to reporting person's account under the issuer's Deferred Compensation Plan for Directors and Executives pursuant to a prior election. Organization and Executive Compensation Committee certification of the satisfaction of the performance threshold occurred on the transaction date.

F4 · ownership.nature: Shares have been credited to reporting person's account under Northwest Natural Gas Company's Deferred Compensation Plan for Directors and Executives.

SEC source: 0001567619-19-005661 · doc1.xml · nonDerivative · entry 1

Saathoff MardiLyn · CIK 0001445672 · SVP, General Counsel & Reg.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,747.0855

F1 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2018 under restricted stock unit awards. Organization and Executive Compensation Committee certification of the satisfaction of the performance threshold occurred on the transaction date.

F2 · balance_after: Includes 3,100 time-based restricted stock units (RSUs) granted under issuer's Long Term Incentive Plan. The 3,100 RSUs vest in three installments: 775 shares on each March 1, 2019 and 2020, and 1,550 shares on March 1, 2021.

SEC source: 0001567619-19-005640 · doc1.xml · nonDerivative · entry 2

ANDERSON DAVID HUGO · CIK 0001241405 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 82,132.958

F2 · shares: Shares are issuable as a result of satisfaction of performance goals for 2016-2018 under a performance share award. Organization and Executive Compensation Committee certification of the award payout level occurred on the transaction date.

SEC source: 0001567619-19-005640 · doc1.xml · nonDerivative · entry 1

ANDERSON DAVID HUGO · CIK 0001241405 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 73,350.958

F1 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2018 under restricted stock unit awards. Organization and Executive Compensation Committee certification of the satisfaction of the performance threshold occurred on the transaction date.

SEC source: 0001567619-19-005664 · doc1.xml · nonDerivative · entry 1

Weber David A. · CIK 0001538965 · Pres. & CEO of Issuer's Sub.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 804.872

F1 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2018 under restricted stock unit awards. Organization and Executive Compensation Committee certification of the satisfaction of the performance threshold occurred on the transaction date.

SEC source: 0001567619-19-005666 · doc1.xml · nonDerivative · entry 3

WILSON BRODY J · CIK 0001571275 · VP, Treas., CAO & Controller

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 2,306.763

F4 · shares: Shares are issuable as a result of satisfaction of performance goals for 2016-2018 under a performance share award, and credited to reporting person's account under Northwest Natural Gas Company's Deferred Compensation Plan for Directors and Executives pursuant to a prior election. Organization and Executive Compensation Committee certification of the award payout level occurred on the transaction date.

F3 · ownership.nature: Reflects shares that have been credited to reporting person's account under Northwest Natural Gas Company's Deferred Compensation Plan for Directors and Executives.

SEC source: 0001567619-19-005666 · doc1.xml · nonDerivative · entry 2

WILSON BRODY J · CIK 0001571275 · VP, Treas., CAO & Controller

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 804.763

F2 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2018 under restricted stock unit awards, and credited to reporting person's account under Northwest Natural Gas Company's Deferred Compensation Plan for Directors and Executives pursuant to a prior election. Organization and Executive Compensation Committee certification of the satisfaction of the performance threshold occurred on the transaction date.

F3 · ownership.nature: Reflects shares that have been credited to reporting person's account under Northwest Natural Gas Company's Deferred Compensation Plan for Directors and Executives.

SEC source: 0001567619-19-005666 · doc1.xml · nonDerivative · entry 1

WILSON BRODY J · CIK 0001571275 · VP, Treas., CAO & Controller

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,918

F1 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2018 under restricted stock unit awards. Organization and Executive Compensation Committee certification of the satisfaction of the performance threshold occurred on the transaction date.

SEC source: 0001567619-19-005643 · doc1.xml · nonDerivative · entry 1

Burkhartsmeyer Frank · CIK 0001661934 · SVP & Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,603

F1 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2018 under restricted stock unit awards. Organization and Executive Compensation Committee certification of the satisfaction of the performance threshold occurred on the transaction date.

F2 · balance_after: Includes 4,512 time-based restricted stock units (RSUs) granted under issuer's Long Term Incentive Plan. The RSUs vest in three equal installments: 1,504 shares on each March 1, 2019, 2020 and 2021.

SEC source: 0001567619-19-005668 · doc1.xml · nonDerivative · entry 3

Filippi Shawn M · CIK 0001629792 · VP, CCO & Corp. Secretary

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 2,517.007

F4 · shares: Shares are issuable as a result of satisfaction of performance goals for 2016-2018 under a performance share award, and credited to reporting person's account under Northwest Natural Gas Company's Deferred Compensation Plan for Directors and Executives pursuant to a prior election. Organization and Executive Compensation Committee certification of the award payout level occurred on the transaction date.

F3 · ownership.nature: Shares have been credited to reporting person's account under Northwest Natural Gas Company's Deferred Compensation Plan for Directors and Executives.

SEC source: 0001567619-19-005668 · doc1.xml · nonDerivative · entry 2

Filippi Shawn M · CIK 0001629792 · VP, CCO & Corp. Secretary

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 1,015.007

F2 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2018 under restricted stock unit awards, and credited to reporting person's account under Northwest Natural Gas Company's Deferred Compensation Plan for Directors and Executives pursuant to a prior election. Organization and Executive Compensation Committee certification of the satisfaction of the performance threshold occurred on the transaction date.

F3 · ownership.nature: Shares have been credited to reporting person's account under Northwest Natural Gas Company's Deferred Compensation Plan for Directors and Executives.

SEC source: 0001567619-19-005668 · doc1.xml · nonDerivative · entry 1

Filippi Shawn M · CIK 0001629792 · VP, CCO & Corp. Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,563.0225

F1 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2018 under restricted stock unit awards. Organization and Executive Compensation Committee certification of the satisfaction of the performance threshold occurred on the transaction date.

SEC source: 0001567619-19-005648 · doc1.xml · nonDerivative · entry 3

Heiting Kimberly A. · CIK 0001629836 · SVP Comm. & Chf. Mktg. Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,607.9124

F4 · shares: Shares are issuable as a result of satisfaction of performance goals for 2016-2018 under a performance share award. Organization and Executive Compensation Committee certification of the award payout level occurred on the transaction date.

SEC source: 0001567619-19-005648 · doc1.xml · nonDerivative · entry 2

Heiting Kimberly A. · CIK 0001629836 · SVP Comm. & Chf. Mktg. Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 44.065

F2 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2018 under restricted stock unit awards, and credited to reporting person's account under Northwest Natural Gas Company's Deferred Compensation Plan for Directors and Executives pursuant to a prior election. Organization and Executive Compensation Committee certification of the satisfaction of the performance threshold occurred on the transaction date.

F3 · ownership.nature: Shares have been credited to reporting person's account under Northwest Natural Gas Company's Deferred Compensation Plan for Directors and Executives.

SEC source: 0001567619-19-005648 · doc1.xml · nonDerivative · entry 1

Heiting Kimberly A. · CIK 0001629836 · SVP Comm. & Chf. Mktg. Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,105.9124

F1 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2018 under restricted stock unit awards. Organization and Executive Compensation Committee certification of the satisfaction of the performance threshold occurred on the transaction date.

SEC source: 0001567619-19-005657 · doc1.xml · nonDerivative · entry 1

Rogers Melinda B. · CIK 0001748944 · VP, Chief HR & Diversity Off.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 173

F1 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2018 under restricted stock unit awards. Organization and Executive Compensation Committee certification of the satisfaction of the performance threshold occurred on the transaction date.

SEC source: 0001567619-19-005650 · doc1.xml · nonDerivative · entry 1

HUDDLESTON JON G · CIK 0001736455 · VP, Eng. & Utility Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,729.05

F1 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2018 under restricted stock unit awards. Organization and Executive Compensation Committee certification of the satisfaction of the performance threshold occurred on the transaction date.

SEC source: 0001567619-19-001465 · doc1.xml · nonDerivative · entry 3

ANDERSON DAVID HUGO · CIK 0001241405 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 22,102.277

F3 · shares: These shares were issued in connection with the reporting person's election on November 18, 2014 to participate in the issuer's DCP, which specifies that taxes shall be withheld from distributions. Pursuant to the DCP and the reporting person's election, these shares were sold to pay taxes on the DCP distribution made on January 17, 2019.

F4 · price: This transaction was executed in aggregate along with stock sales of other DCP participants who received DCP stock distributions on January 17, 2019 and elected to have taxes withheld (The Transaction). The Transaction was executed in multiple trades on reported date with prices ranging from $59.15 to $59.76, resulting in average price of $59.2345. Northwest Natural Holding Company will provide upon request by Commission staff or a security holder of the issuer full information regarding the number of shares sold at each separate price.

F2 · ownership.nature: Reflects shares that have been credited to reporting person's account under the issuer's DCP.

SEC source: 0001567619-19-001465 · doc1.xml · nonDerivative · entry 2

ANDERSON DAVID HUGO · CIK 0001241405 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 69,069.7988

F1 · shares: Shares were distributed from Deferred Compensation Plan for Directors and Executives (DCP) account to reporting person's registered account pursuant to reporting person's election on November 18, 2014.

SEC source: 0001567619-19-001465 · doc1.xml · nonDerivative · entry 1

ANDERSON DAVID HUGO · CIK 0001241405 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 22,174.277

F1 · shares: Shares were distributed from Deferred Compensation Plan for Directors and Executives (DCP) account to reporting person's registered account pursuant to reporting person's election on November 18, 2014.

F2 · ownership.nature: Reflects shares that have been credited to reporting person's account under the issuer's DCP.

SEC source: 0001567619-19-001467 · doc1.xml · nonDerivative · entry 4

GIBSON C SCOTT · CIK 0001192754 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,085

F4 · shares: Shares were distributed from Directors Deferred Compensation Plan (DDCP) account to reporting person pursuant to reporting person's election on May 7, 2008 with regard to his election to participate in the DDCP.

SEC source: 0001567619-19-001467 · doc1.xml · nonDerivative · entry 3

GIBSON C SCOTT · CIK 0001192754 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 1,999.536

F4 · shares: Shares were distributed from Directors Deferred Compensation Plan (DDCP) account to reporting person pursuant to reporting person's election on May 7, 2008 with regard to his election to participate in the DDCP.

F5 · ownership.nature: Reflects shares that have been credited to reporting person's account under the issuer's DDCP.

SEC source: 0001567619-19-001467 · doc1.xml · nonDerivative · entry 2

GIBSON C SCOTT · CIK 0001192754 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,800

F1 · shares: Shares were distributed from Deferred Compensation Plan for Directors and Executives (DCP) account to reporting person pursuant to reporting person's election on May 7, 2008 with regard to his election to participate in the DCP.

F3 · balance_after: Includes 339 restricted stock units (RSUs) granted in accordance with the Northwest Natural Gas Company Compensation Policy for Non-employee Directors. These RSUs vest on May 24, 2019.

SEC source: 0001567619-19-001467 · doc1.xml · nonDerivative · entry 1

GIBSON C SCOTT · CIK 0001192754 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 14,035.104

F1 · shares: Shares were distributed from Deferred Compensation Plan for Directors and Executives (DCP) account to reporting person pursuant to reporting person's election on May 7, 2008 with regard to his election to participate in the DCP.

F2 · ownership.nature: Reflects shares that have been credited to reporting person's account under the issuer's DCP.

SEC source: 0001567619-18-007934 · doc1.xml · derivative · entry 5

Russell Lori L · CIK 0001671699 · VP, Utility Services

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,200 shares

Expires 2019-03-04

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · price: Option was granted as part of compensation for services. The option was exercised in a cashless exercise.

F4 · derivative.exercise_date: The option vested in four equal installments on February 25, 2010, January 1, 2011, 2012 and 2013.

SEC source: 0001567619-18-007934 · doc1.xml · nonDerivative · entry 2

Russell Lori L · CIK 0001671699 · VP, Utility Services

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,644.1889

F1 · price: This transaction was executed in multiple trades on reported date with prices ranging from $66.391 - $66.54, resulting in an average price of $66.4303. Northwest Natural Holdings ("Issuer") will provide upon request by the Commission staff or a security holder of the Issuer full information regarding the number of shares purchased or sold at each separate price.

SEC source: 0001567619-18-007934 · doc1.xml · nonDerivative · entry 1

Russell Lori L · CIK 0001671699 · VP, Utility Services

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,844.1889

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001567619-19-003392 · doc1.xml · nonDerivative · entry 2

CARTER JOHN D · CIK 0001192728 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 7,000

F1 · shares: Represents transfer of shares as gift from reporting person to trust for the benefit of reporting person's child, for which reporting person serves as trustee.

F3 · ownership.nature: These shares are held in a trust for the benefit of reporting person's child, for which reporting person serves as trustee. The filing of this report is not an admission that the reporting person is the beneficial owner of these securities for purposes of Section 16 or for any other purposes.

SEC source: 0001567619-19-003392 · doc1.xml · nonDerivative · entry 1

CARTER JOHN D · CIK 0001192728 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,609.566

F1 · shares: Represents transfer of shares as gift from reporting person to trust for the benefit of reporting person's child, for which reporting person serves as trustee.

SEC source: 0001567619-18-005482 · doc1.xml · nonDerivative · entry 1

ANDERSON DAVID HUGO · CIK 0001241405 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 22,187.634

F1 · ownership.nature: Shares have been credited to reporting person's account under issuer's Deferred Compensation Plan for Directors and Executives.