NWN

SEC source: 0001567619-20-014920 · doc1.xml · nonDerivative · entry 1

Wilhoite Charles A. · CIK 0001749674 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 4,745.596

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

SEC source: 0001567619-20-009812 · doc1.xml · nonDerivative · entry 1

Wilhoite Charles A. · CIK 0001749674 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 3,829.721

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

SEC source: 0001567619-20-005806 · doc1.xml · nonDerivative · entry 2

DOWNING JAMES R · CIK 0001717381 · VP, CIO · NW Natural

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,255

F2 · shares: Shares were withheld by the issuer to cover withholding taxes on issuance of performance shares. Organization and Executive Compensation Committee certification of the payout of these performance shares was reported on Form 4 filed on February 28, 2020.

F3 · balance_after: Includes 1,840 time-based restricted stock units (RSUs) granted under Issuer's Long-Term Incentive Plan. The RSUs vest in two installments: 920 shares on each March 1, 2021 and 2022.

SEC source: 0001567619-20-005806 · doc1.xml · nonDerivative · entry 1

DOWNING JAMES R · CIK 0001717381 · VP, CIO · NW Natural

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,915

F1 · shares: Shares were withheld by the issuer to cover withholding taxes on issuance of shares due to vesting of 375 restricted stock units (RSUs) with performance threshold and vesting of 920 time-based RSUs. Organization and Executive Compensation Committee certification of satisfaction of the performance threshold and vesting for 375 RSUs was reported on Form 4 filed on February 28, 2020. The 920 time-based RSUs are part of 3,680 time-based RSUs that have been reported as shares beneficially owned by the reporting person since initially reported on the reporting person's Form 3 on September 20, 2017.

F3 · balance_after: Includes 1,840 time-based restricted stock units (RSUs) granted under Issuer's Long-Term Incentive Plan. The RSUs vest in two installments: 920 shares on each March 1, 2021 and 2022.

SEC source: 0001567619-20-005815 · doc1.xml · nonDerivative · entry 2

Palfreyman Justin · CIK 0001686243 · VP Strategy & Bus. Dev · NW Natural

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,367

F2 · shares: Shares were withheld by the issuer to cover withholding taxes on issuance of performance shares. Organization and Executive Compensation Committee certification of the payout of these performance shares was reported on Form 4 filed on February 28, 2020.

F3 · balance_after: Includes 1,032 time-based restricted stock units (RSUs) granted under issuer's Long Term Incentive Plan. The RSUs vest on March 1, 2021.

SEC source: 0001567619-20-005815 · doc1.xml · nonDerivative · entry 1

Palfreyman Justin · CIK 0001686243 · VP Strategy & Bus. Dev · NW Natural

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,188

F1 · shares: Shares were withheld by the issuer to cover withholding taxes on issuance of shares due to vesting of 745 restricted stock units (RSUs) with performance threshold, and vesting of 516 time-based RSUs. Organization and Executive Compensation Committee certification of satisfaction of the performance threshold and vesting for 745 RSUs was reported on Form 4 filed on February 28, 2020. The 516 time-based RSUs are part of 2,580 time-based RSUs that have been reported as shares beneficially owned by the reporting person since initially reported on the reporting person's Form 3 on October 5, 2016.

F3 · balance_after: Includes 1,032 time-based restricted stock units (RSUs) granted under issuer's Long Term Incentive Plan. The RSUs vest on March 1, 2021.

SEC source: 0001567619-20-005828 · doc1.xml · nonDerivative · entry 2

Saathoff MardiLyn · CIK 0001445672 · SVP, General Counse & Reg

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,417.1235

F2 · shares: Shares were withheld by issuer to cover withholding taxes on issuance of performance shares. Organization and Executive Compensation Committee certification of the payout of these performance shares was reported on Form 4 filed on February 28, 2020.

F3 · balance_after: Includes 1,550 time-based restricted stock units (RSUs) granted under issuer's Long Term Incentive Plan. The 1,550 RSUs vest on March 1, 2021.

SEC source: 0001567619-20-005828 · doc1.xml · nonDerivative · entry 1

Saathoff MardiLyn · CIK 0001445672 · SVP, General Counse & Reg

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,488.1235

F1 · shares: Shares were withheld by the issuer to cover withholding taxes on issuance of shares due to vesting of 1,797 restricted stock units (RSUs) with performance threshold, and vesting of 775 time-based RSUs. Organization and Executive Compensation Committee certification of satisfaction of the performance threshold and vesting for these restricted stock units was reported on Form 4 filed on February 28, 2020. The 775 time-based RSUs are part of 3,100 time-based RSUs that have been reported as shares beneficially owned by the reporting person since initially reported on the reporting person's Form 4 on July 29, 2016.

F3 · balance_after: Includes 1,550 time-based restricted stock units (RSUs) granted under issuer's Long Term Incentive Plan. The 1,550 RSUs vest on March 1, 2021.

SEC source: 0001567619-20-005802 · doc1.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 92,474.7291

F2 · shares: Shares were withheld by the issuer to cover withholding taxes on issuance of performance shares. Organization and Executive Compensation Committee certification of the payout of these performance shares was reported on Form 4 filed on February 28, 2020.

SEC source: 0001567619-20-005802 · doc1.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 96,033.7291

F1 · shares: Shares were withheld by the issuer to cover withholding taxes on issuance of shares due to vesting of restricted stock units. Organization and Executive Compensation Committee certification of satisfaction of the performance threshold and vesting for these restricted stock units was reported on Form 4 filed on February 28, 2020.

SEC source: 0001567619-20-005840 · doc1.xml · nonDerivative · entry 1

GIBSON C SCOTT · CIK 0001192754 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F1 · price: The transaction was executed in multiple trades on reported date with prices ranging from $67.841 to $67.86, resulting in average price of $67.843.

SEC source: 0001567619-20-005833 · doc1.xml · nonDerivative · entry 1

Weber David A. · CIK 0001538965 · VP, Gas Supply · NW Natural

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,059.022

F1 · shares: Shares were withheld by the issuer to cover withholding taxes on issuance of shares due to vesting of restricted stock units. Organization and Executive Compensation Committee certification of satisfaction of the performance threshold and vesting for these restricted stock units was reported on Form 4 filed February 28, 2020.

SEC source: 0001567619-20-005838 · doc1.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,635

F2 · shares: Shares were withheld by issuer to cover withholding taxes on issuance of performance shares. Organization and Executive Compensation Committee certification of the payout of these performance shares was reported on Form 4 filed on February 28, 2020.

SEC source: 0001567619-20-005838 · doc1.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,967

F1 · shares: Shares were withheld by the issuer to cover withholding taxes on issuance of shares due to vesting of restricted stock units. Organization and Executive Compensation Committee certification of satisfaction of the performance threshold and vesting for these restricted stock units was reported on Form 4 filed on February 28, 2020.

SEC source: 0001567619-20-005809 · doc1.xml · nonDerivative · entry 2

Heiting Kimberly A. · CIK 0001629836 · SVP & Chief Marketing Officer · NW Natural

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,980.0332

F2 · shares: Shares were withheld by the issuer to cover withholding taxes on issuance of performance shares. Organization and Executive Compensation Committee certification of the payout of these performance shares was reported on Form 4 filed on February 28, 2020.

SEC source: 0001567619-20-005809 · doc1.xml · nonDerivative · entry 1

Heiting Kimberly A. · CIK 0001629836 · SVP & Chief Marketing Officer · NW Natural

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,525.0332

F1 · shares: Shares were withheld by the issuer to cover withholding taxes on issuance of shares due to vesting of restricted stock units. Organization and Executive Compensation Committee certification of satisfaction of the performance threshold and vesting for these restricted stock units was reported on Form 4 filed on February 28, 2020.

SEC source: 0001567619-20-005804 · doc1.xml · nonDerivative · entry 2

Burkhartsmeyer Frank · CIK 0001661934 · SVP & Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,882.592

F2 · shares: Shares were withheld by the issuer to cover withholding taxes on issuance of performance shares. Organization and Executive Compensation Committee certification of the payout of these performance shares was reported on Form 4 filed on February 28, 2020.

F3 · balance_after: Includes 1,504 time-based restricted stock units (RSUs) granted under issuer's Long Term Incentive Plan. The RSUs vest on March 1, 2021.

SEC source: 0001567619-20-005804 · doc1.xml · nonDerivative · entry 1

Burkhartsmeyer Frank · CIK 0001661934 · SVP & Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,112.592

F1 · shares: Shares were withheld by the issuer to cover withholding taxes on issuance of shares due to vesting of 1,420 restricted stock units (RSUs) with performance threshold, and vesting of 1,504 time-based RSUs. Organization and Executive Compensation Committee certification of satisfaction of the performance threshold and vesting for 1,420 RSUs was reported on Form 4 filed on February 28, 2020. The 1,504 time-based RSUs are part of 6,016 time-based RSUs that have been reported as shares beneficially owned by the reporting person since initially reported on the reporting person's Form 3 on May 23, 2017.

F3 · balance_after: Includes 1,504 time-based restricted stock units (RSUs) granted under issuer's Long Term Incentive Plan. The RSUs vest on March 1, 2021.

SEC source: 0001567619-20-005835 · doc1.xml · nonDerivative · entry 1

Williams Kathryn M · CIK 0001772924 · VP, PA & Sustainability · NW Natural

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 234

F1 · shares: Shares were withheld by the issuer to cover withholding taxes on issuance of shares due to vesting of restricted stock units. Organization and Executive Compensation Committee certification of satisfaction of the performance threshold and vesting for these restricted stock units was reported on Form 4 filed on February 28, 2020.

SEC source: 0001567619-20-005822 · doc1.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 168.616

F1 · shares: Shares were withheld by the issuer to cover withholding taxes on issuance of shares due to vesting of restricted stock units. Organization and Executive Compensation Committee certification of satisfaction of the performance threshold and vesting for these restricted stock units was reported on Form 4 filed on February 28, 2020.

SEC source: 0001567619-20-005812 · doc1.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,895.2568

F1 · shares: Shares were withheld by the issuer to cover withholding taxes on issuance of shares due to vesting of restricted stock units. Organization and Executive Compensation Committee certification of satisfaction of the performance threshold and vesting for these restricted stock units was reported on Form 4 filed on February 28, 2020.

SEC source: 0001567619-20-005748 · doc1.xml · nonDerivative · entry 1

Wilhoite Charles A. · CIK 0001749674 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 3,124.771

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

SEC source: 0001567619-20-005183 · doc1.xml · nonDerivative · entry 2

DOWNING JAMES R · CIK 0001717381 · VP and CIO / NW Natural

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,279

F2 · shares: Shares are issuable as a result of satisfaction of performance goals for 2017-2019 under a performance share award. Organization and Executive Compensation Committee certification of the award payout level occurred on the transaction date.

F3 · balance_after: Includes 2,760 time-based restricted stock units (RSUs) granted under Issuer's Long Term Incentive Plan. The RSUs vest in three installments: 920 shares on each March 1, 2020, 2021 and 2022.

SEC source: 0001567619-20-005183 · doc1.xml · nonDerivative · entry 1

DOWNING JAMES R · CIK 0001717381 · VP and CIO / NW Natural

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,996

F1 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2019 under restricted stock unit awards. Organization and Executive Compensation Committee certification of the satisfaction of the performance threshold occurred on the transaction date.

F3 · balance_after: Includes 2,760 time-based restricted stock units (RSUs) granted under Issuer's Long Term Incentive Plan. The RSUs vest in three installments: 920 shares on each March 1, 2020, 2021 and 2022.

SEC source: 0001567619-20-005203 · doc1.xml · nonDerivative · entry 2

Palfreyman Justin · CIK 0001686243 · VP, Strategy & Bus Dev · NW Natural

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,533

F2 · shares: Shares are issuable as a result of satisfaction of performance goals for 2017-2019 under a performance share award. Organization and Executive Compensation Committee certification of the award payout level occurred on the transaction date.

F3 · balance_after: Includes 1,548 time-based restricted stock units (RSUs) granted under issuer's Long Term Incentive Plan. The RSUs vest in two installments: 516 shares on March 1, 2020, and 1,032 shares on March 1, 2021.

SEC source: 0001567619-20-005203 · doc1.xml · nonDerivative · entry 1

Palfreyman Justin · CIK 0001686243 · VP, Strategy & Bus Dev · NW Natural

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,632

F1 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2019 under restricted stock unit awards. Organization and Executive Compensation Committee certification of the satisfaction of the performance threshold occurred on the transaction date.

F3 · balance_after: Includes 1,548 time-based restricted stock units (RSUs) granted under issuer's Long Term Incentive Plan. The RSUs vest in two installments: 516 shares on March 1, 2020, and 1,032 shares on March 1, 2021.

SEC source: 0001567619-20-005212 · 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: 8,173.162

F6 · shares: Shares are issuable as a result of satisfaction of performance goals for 2017-2019 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: 0001567619-20-005212 · doc1.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,072.1235

F5 · shares: Shares are issuable as a result of satisfaction of performance goals for 2017-2019 under a performance share award. Organization and Executive Compensation Committee certification of the award payout level occurred on transaction date.

F2 · balance_after: Includes 2,325 time-based restricted stock units (RSUs) granted under issuer's Long Term Incentive Plan. The RSUs vest in two installments: 775 shares on March 1, 2020, and 1,550 shares on March 1, 2021.

SEC source: 0001567619-20-005212 · 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: 7,628.162

F3 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2019 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: 0001567619-20-005212 · doc1.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,079.1235

F1 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2019 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 2,325 time-based restricted stock units (RSUs) granted under issuer's Long Term Incentive Plan. The RSUs vest in two installments: 775 shares on March 1, 2020, and 1,550 shares on March 1, 2021.

SEC source: 0001567619-20-005175 · doc1.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 98,349.7291

F2 · shares: Shares are issuable as a result of satisfaction of performance goals for 2017-2019 under a performance share award. Organization and Executive Compensation Committee certification of the award payout level occurred on the transaction date.

SEC source: 0001567619-20-005175 · doc1.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 84,723.7291

F1 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2019 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: 0001567619-20-005216 · doc1.xml · nonDerivative · entry 1

Weber David A. · CIK 0001538965 · VP, Gas Supply · NW Natural

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,255.022

F1 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2019 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: 0001567619-20-005218 · doc1.xml · nonDerivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 3,720.933

F4 · shares: Shares are issuable as a result of satisfaction of performance goals for 2017-2019 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.

F5 · 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: 0001567619-20-005218 · doc1.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,050

F3 · shares: Shares are issuable as a result of satisfaction of performance goals for 2017-2019 under a performance share award. Organization and Executive Compensation Committee certification of the award payout level occurred on the transaction date.

SEC source: 0001567619-20-005218 · 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: 2,812.933

F2 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2019 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.

F5 · 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: 0001567619-20-005218 · doc1.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,143

F1 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2019 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: 0001567619-20-005187 · 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: 5,030.935

F2 · shares: Shares are issuable as a result of satisfaction of performance goals for 2017-2019 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: 0001567619-20-005187 · doc1.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 3,215.935

F1 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2019 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: 0001567619-20-005192 · doc1.xml · nonDerivative · entry 3

Heiting Kimberly A. · CIK 0001629836 · SVP & Chief Marketing Officer · NW Natural

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,821.0332

F4 · shares: Shares are issuable as a result of satisfaction of performance goals for 2017-2019 under a performance share award. Organization and Executive Compensation Committee certification of the award payout level occurred on the transaction date.

SEC source: 0001567619-20-005192 · doc1.xml · nonDerivative · entry 2

Heiting Kimberly A. · CIK 0001629836 · SVP & Chief Marketing Officer · NW Natural

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 62.272

F2 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2019 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: 0001567619-20-005192 · doc1.xml · nonDerivative · entry 1

Heiting Kimberly A. · CIK 0001629836 · SVP & Chief Marketing Officer · NW Natural

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,006.0332

F1 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2019 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: 0001567619-20-005179 · doc1.xml · nonDerivative · entry 2

Burkhartsmeyer Frank · CIK 0001661934 · SVP & Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,930.592

F2 · shares: Shares are issuable as a result of satisfaction of performance goals for 2017-2019 under a performance share award. Organization and Executive Compensation Committee certification of the award payout level occurred on the transaction date.

F3 · balance_after: Includes 3,008 time-based restricted stock units (RSUs) granted under issuer's Long Term Incentive Plan. The RSUs vest in two equal installments: 1,504 shares on each March 1, 2020 and 2021.

SEC source: 0001567619-20-005179 · doc1.xml · nonDerivative · entry 1

Burkhartsmeyer Frank · CIK 0001661934 · SVP & Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,392.592

F1 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2019 under restricted stock unit awards. Organization and Executive Compensation Committee certification of the satisfaction of the performance threshold occurred on the transaction date.

F3 · balance_after: Includes 3,008 time-based restricted stock units (RSUs) granted under issuer's Long Term Incentive Plan. The RSUs vest in two equal installments: 1,504 shares on each March 1, 2020 and 2021.

SEC source: 0001567619-20-005220 · doc1.xml · nonDerivative · entry 1

Williams Kathryn M · CIK 0001772924 · VP, Public Affairs · NW Natural

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 274

F1 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2019 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: 0001567619-20-005207 · doc1.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 183

F2 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2019 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.

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: 0001567619-20-005207 · doc1.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 194.616

F1 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2019 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: 0001567619-20-005197 · doc1.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 146

F2 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2019 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: 0001567619-20-005197 · doc1.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,985.2568

F1 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2019 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: 0001567619-20-011051 · doc1.xml · nonDerivative · entry 1

Williams Kathryn M · CIK 0001772924 · VP, Public Affairs & · Sustainability, NW Natural

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,330

F1 · shares: The original Form 4 filed on February 28, 2020 is amended to report the inadvertent omission of 2,056 shares of common stock pursuant to restricted stock units (RSUs) granted under Northwest Natural Holding Company's Long Term Incentive Plan. One fourth of the RSUs shall vest on each of March 1, 2023 and March 1, 2024 and the remaining one half shall vest on March 1, 2025.