NWN

SEC source: 0001567619-21-005516 · doc1.xml · nonDerivative · entry 1

MCCURDY DAVID K · CIK 0001069010 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 525.442

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

SEC source: 0001567619-21-005526 · doc1.xml · nonDerivative · entry 1

PARTAIN NATHAN I · CIK 0001180965 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 276.41

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

SEC source: 0001567619-21-005520 · doc1.xml · nonDerivative · entry 1

Wilhoite Charles A. · CIK 0001749674 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 6,959.622

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

SEC source: 0001567619-21-005514 · doc1.xml · nonDerivative · entry 1

Enand Monica · CIK 0001794296 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 266.999

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

SEC source: 0001567619-21-005109 · 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: 7,152.129

F2 · shares: Shares are issuable as a result of satisfaction of performance goals for 2018-2020 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 1,840 time-based restricted stock units (RSUs) granted under Issuer's Long Term Incentive Plan. The RSUs vest in two equal installments: 920 shares on each March 1, 2021 and 2022.

SEC source: 0001567619-21-005109 · 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: 5,847.129

F1 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2020 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 1,840 time-based restricted stock units (RSUs) granted under Issuer's Long Term Incentive Plan. The RSUs vest in two equal installments: 920 shares on each March 1, 2021 and 2022.

SEC source: 0001567619-21-005056 · 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: 5,659

F2 · shares: Shares are issuable as a result of satisfaction of performance goals for 2018-2020 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 1,032 time-based restricted stock units (RSUs) granted under issuer's Long Term Incentive Plan. The RSUs vest on March 1, 2021.

SEC source: 0001567619-21-005056 · 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: 3,987

F1 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2020 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 1,032 time-based restricted stock units (RSUs) granted under issuer's Long Term Incentive Plan. The RSUs vest on March 1, 2021.

SEC source: 0001567619-21-005110 · 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: 9,465.751

F6 · shares: Shares are issuable as a result of satisfaction of performance goals for 2018-2020 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: 0001567619-21-005110 · doc1.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,341.1235

F5 · shares: Shares are issuable as a result of satisfaction of performance goals for 2018-2020 under a performance share award. Organization and Executive Compensation Committee certification of the award payout level occurred on transaction date.

F2 · balance_after: Includes 1,550 time-based restricted stock units (RSUs) granted under issuer's Long Term Incentive Plan. The RSUs vest on March 1, 2021.

SEC source: 0001567619-21-005110 · 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: 9,087.751

F3 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2020 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: 0001567619-21-005110 · doc1.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,577.1235

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

SEC source: 0001567619-21-005024 · doc1.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 112,275.8552

F2 · shares: Shares are issuable as a result of satisfaction of performance goals for 2018-2020 under a performance share award. Organization and Executive Compensation Committee certification of the award payout level occurred on the transaction date.

SEC source: 0001567619-21-005024 · doc1.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 102,038.8552

F1 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2020 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: 0001567619-21-005064 · doc1.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,026.048

F2 · shares: Shares are issuable as a result of satisfaction of performance goals for 2018-2020 under a performance share award. Organization and Executive Compensation Committee certification of the award payout level occurred on the transaction date.

SEC source: 0001567619-21-005064 · 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: 1,721.048

F1 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2020 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: 0001567619-21-005076 · 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: 4,776.967

F4 · shares: Shares are issuable as a result of satisfaction of performance goals for 2018-2020 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: 0001567619-21-005076 · doc1.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,699

F3 · shares: Shares are issuable as a result of satisfaction of performance goals for 2018-2020 under a performance share award. Organization and Executive Compensation Committee certification of the award payout level occurred on the transaction date.

SEC source: 0001567619-21-005076 · 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: 4,123.967

F2 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2020 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: 0001567619-21-005076 · doc1.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,047

F1 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2020 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: 0001567619-21-005040 · 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: 6,837.27

F2 · shares: Shares are issuable as a result of satisfaction of performance goals for 2018-2020 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: 0001567619-21-005040 · 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: 5,790.27

F1 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2020 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: 0001567619-21-005043 · 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: 10,532.4267

F4 · shares: Shares are issuable as a result of satisfaction of performance goals for 2018-2020 under a performance share award. Organization and Executive Compensation Committee certification of the award payout level occurred on the transaction date.

SEC source: 0001567619-21-005043 · 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: 72.616

F2 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2020 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: 0001567619-21-005043 · 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: 8,226.4267

F1 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2020 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: 0001567619-21-005035 · 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: 6,837.27

F2 · shares: Shares are issuable as a result of satisfaction of performance goals for 2018-2020 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: 0001567619-21-005035 · 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: 5,790.27

F1 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2020 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: 0001567619-21-005027 · doc1.xml · nonDerivative · entry 2

Burkhartsmeyer Frank · CIK 0001661934 · SVP & Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,361.262

F2 · shares: Shares are issuable as a result of satisfaction of performance goals for 2018-2020 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 1,504 time-based restricted stock units (RSUs) granted under issuer's Long Term Incentive Plan. The RSUs vest on March 1, 2021.

SEC source: 0001567619-21-005027 · doc1.xml · nonDerivative · entry 1

Burkhartsmeyer Frank · CIK 0001661934 · SVP & Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,219.262

F1 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2020 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 1,504 time-based restricted stock units (RSUs) granted under issuer's Long Term Incentive Plan. The RSUs vest on March 1, 2021.

SEC source: 0001567619-21-005071 · 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: 2,520

F1 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2020 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 2,056 time-based restricted stock units (RSUs) granted under issuer's Long Term Incentive Plan. The RSUs vest in three installments: 514 shares on each of March 1, 2023 and March 1, 2024, and 1,028 shares on March 1, 2025.

SEC source: 0001567619-21-005058 · 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: 507.887

F2 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2020 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: 0001567619-21-005058 · 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: 218.038

F1 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2020 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: 0001567619-21-005052 · doc1.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,129.6438

F4 · shares: Shares are issuable as a result of satisfaction of performance goals for 2018-2020 under a performance share award. Organization and Executive Compensation Committee certification of the award payout level occurred on the transaction date.

SEC source: 0001567619-21-005052 · 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: 417.495

F2 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2020 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: 0001567619-21-005052 · 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: 2,146.6438

F1 · shares: Shares are issuable as a result of satisfaction of the performance threshold for 2020 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: 0001567619-21-001160 · 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: 15,925.24

F3 · shares: These shares were issued in connection with the reporting person's elections on November 18, 2014, December 2, 2015 and December 7, 2016 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 prior elections, these shares were sold to pay taxes on the DCP distribution made on January 14, 2021.

F4 · price: This transaction was executed in aggregate along with stock sales of other DCP participants who received DCP stock distributions on January 14, 2021 and elected to have taxes withheld (The Transaction). The Transaction was executed in multiple trades on reported date with prices ranging from $44.01 - $44.56, resulting in average price of $44.213. 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: 0001567619-21-001160 · doc1.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 96,212.3101

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, December 2, 2015, and December 7, 2016.

SEC source: 0001567619-21-001160 · 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: 17,505.24

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, December 2, 2015, and December 7, 2016.

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

SEC source: 0001567619-21-001162 · doc1.xml · nonDerivative · entry 6

GIBSON C SCOTT · CIK 0001192754 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 1,519.752

F6 · shares: These shares were issued in connection with the reporting person's election to participate in the issuer's DDCP. Pursuant to a prior election, these shares were sold to pay taxes on the DDCP distribution made on January 14, 2021.

F7 · price: This transaction was executed in aggregate along with stock sales of other DCP and DDCP participants who received DCP and DDCP stock distributions on January 14, 2021 and elected to have taxes withheld (The Transaction). The Transaction was executed in multiple trades on reported date with prices ranging from $44.01 - $44.56, resulting in average price of $44.213. 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.

F4 · ownership.nature: Reflects shares that have been credited to reporting person's account under the issuer's DDCP.

SEC source: 0001567619-21-001162 · doc1.xml · nonDerivative · entry 5

GIBSON C SCOTT · CIK 0001192754 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 11,813.346

F5 · shares: These shares were issued in connection with the reporting person's election to participate in the issuer's DCP. Pursuant to a prior election, these shares were sold to pay taxes on the DCP distribution made on January 14, 2021.

F7 · price: This transaction was executed in aggregate along with stock sales of other DCP and DDCP participants who received DCP and DDCP stock distributions on January 14, 2021 and elected to have taxes withheld (The Transaction). The Transaction was executed in multiple trades on reported date with prices ranging from $44.01 - $44.56, resulting in average price of $44.213. 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: 0001567619-21-001162 · doc1.xml · nonDerivative · entry 4

GIBSON C SCOTT · CIK 0001192754 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,670

F3 · shares: Shares were distributed from Directors Deferred Compensation Plan (DDCP) account to reporting person pursuant to reporting person's election on January 1, 2010.

SEC source: 0001567619-21-001162 · doc1.xml · nonDerivative · entry 3

GIBSON C SCOTT · CIK 0001192754 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 1,550.752

F3 · shares: Shares were distributed from Directors Deferred Compensation Plan (DDCP) account to reporting person pursuant to reporting person's election on January 1, 2010.

F4 · ownership.nature: Reflects shares that have been credited to reporting person's account under the issuer's DDCP.

SEC source: 0001567619-21-001162 · doc1.xml · nonDerivative · entry 2

GIBSON C SCOTT · CIK 0001192754 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,398

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.

SEC source: 0001567619-21-001162 · doc1.xml · nonDerivative · entry 1

GIBSON C SCOTT · CIK 0001192754 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 11,968.346

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.

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

SEC source: 0001567619-20-021376 · 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: 3,032

F1 · 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: 0001567619-20-021376 · 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: 3,663

F1 · 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: 0001567619-20-019542 · doc1.xml · nonDerivative · entry 1

HAMACHEK TOD R · CIK 0001192768 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,930.356

F1 · shares: This transaction is the receipt of 385 shares of common stock distributed from the Margaret Hamachek Admin Trust dated 11/15/2019 to the reporting person for no consideration.

SEC source: 0001567619-20-019072 · doc1.xml · nonDerivative · entry 1

MCCURDY DAVID K · CIK 0001069010 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 273.835

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

SEC source: 0001567619-20-019076 · doc1.xml · nonDerivative · entry 1

Wilhoite Charles A. · CIK 0001749674 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 5,847.208

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

SEC source: 0001567619-20-017177 · doc1.xml · nonDerivative · entry 1

Wasson Malia H · CIK 0001615914 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,626.577

F1 · price: This transaction was executed in multiple trades on reported date with prices ranging from $44.36 to $44.53, resulting in an average price of $44.4442. Northwest Natural Holding Company (Issuer) will provide upon request by the Commission staff or a security holder of the Issuer full information regarding the number of shares purchased at each separate transaction.