PHELAN CATHAL G

SEC source: 0001415889-24-004367 · form4-02202024_090219.xml · derivative · entry 3

PHELAN CATHAL G · CIK 0001259761 · Director · CHIEF INNOVATION OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 10,000 shares

Expires 2030-09-21

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.

F2 · derivative.exercise_date: The option was approved on September 18, 2020 by the Compensation Committee of the Issuer's Board of Directors in connection with certain consulting services being provided by the Reporting Person. The Option fully vested on October 21, 2022.

SEC source: 0001415889-24-004367 · form4-02202024_090219.xml · nonDerivative · entry 2

PHELAN CATHAL G · CIK 0001259761 · Director · CHIEF INNOVATION OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,750

F1 · price: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $106.00 to $106.62 inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

SEC source: 0001415889-24-004367 · form4-02202024_090219.xml · nonDerivative · entry 1

PHELAN CATHAL G · CIK 0001259761 · Director · CHIEF INNOVATION OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 31,750

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: 0001209191-23-051210 · doc4.xml · nonDerivative · entry 3

PHELAN CATHAL G · CIK 0001259761 · Director · Chief Innovation Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,750

F2 · kind: These shares were disposed of in non-discretionary transactions to cover the reporting person's tax withholding obligations in connection with the settlement of an award of restricted stock units ("RSUs").

F4 · price: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $53.70 to $54.05, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

SEC source: 0001209191-23-051210 · doc4.xml · nonDerivative · entry 2

PHELAN CATHAL G · CIK 0001259761 · Director · Chief Innovation Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,230

F2 · kind: These shares were disposed of in non-discretionary transactions to cover the reporting person's tax withholding obligations in connection with the settlement of an award of restricted stock units ("RSUs").

F3 · price: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $52.2701 to $53.10 inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

SEC source: 0001209191-23-051210 · doc4.xml · derivative · entry 4

PHELAN CATHAL G · CIK 0001259761 · Director · Chief Innovation Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 2,000 shares

Expires not disclosed

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 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Impinj common stock.

F6 · derivative.exercise_date: The RSUs were approved by the Compensation Committee of the Issuer's Board of Directors on October 1, 2022. 25% of the RSUs vested on January 1, 2023 and the remaining RSUs vested equally on each of April 1, 2023, July 1, 2023 and October 1, 2023, subject in each case to the Reporting Person continuing to be a service provider on each such vesting date.

F6 · derivative.expiration_date: The RSUs were approved by the Compensation Committee of the Issuer's Board of Directors on October 1, 2022. 25% of the RSUs vested on January 1, 2023 and the remaining RSUs vested equally on each of April 1, 2023, July 1, 2023 and October 1, 2023, subject in each case to the Reporting Person continuing to be a service provider on each such vesting date.

SEC source: 0001209191-23-051210 · doc4.xml · nonDerivative · entry 1

PHELAN CATHAL G · CIK 0001259761 · Director · Chief Innovation Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,832

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.

F1 · balance_after: The amount of securities beneficially owned includes 201 shares acquired on August 18, 2023 under the Impinj, Inc. 2016 Employee Stock Purchase Plan, in a transaction exempt under Rule 16b-3(c) that is being voluntarily reported by the reporting person on this Form 4.

SEC source: 0001209191-23-041240 · doc4.xml · nonDerivative · entry 3

PHELAN CATHAL G · CIK 0001259761 · Director · Chief Innovation Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,631

F1 · kind: These shares were disposed of in non-discretionary transactions to cover the reporting person's tax withholding obligations in connection with the settlement of an award of restricted stock units.

F3 · price: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $90.58 to $90.76, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

SEC source: 0001209191-23-041240 · doc4.xml · nonDerivative · entry 2

PHELAN CATHAL G · CIK 0001259761 · Director · Chief Innovation Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,791

F1 · kind: These shares were disposed of in non-discretionary transactions to cover the reporting person's tax withholding obligations in connection with the settlement of an award of restricted stock units.

F2 · price: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $89.5601 to $90.28 inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

SEC source: 0001209191-23-041240 · doc4.xml · derivative · entry 4

PHELAN CATHAL G · CIK 0001259761 · Director · Chief Innovation Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,000

Underlying: Common Stock · 2,000 shares

Expires not disclosed

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.

F4 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Impinj common stock.

F5 · derivative.exercise_date: The RSUs were approved by the Compensation Committee of the Issuer's Board of Directors on October 1, 2022. 25% of the RSUs vested on January 1, 2023 and the remaining RSUs vest equally on each of April 1, 2023, July 1, 2023 and October 1, 2023, subject in each case to the Reporting Person continuing to be a service provider on each such vesting date.

F5 · derivative.expiration_date: The RSUs were approved by the Compensation Committee of the Issuer's Board of Directors on October 1, 2022. 25% of the RSUs vested on January 1, 2023 and the remaining RSUs vest equally on each of April 1, 2023, July 1, 2023 and October 1, 2023, subject in each case to the Reporting Person continuing to be a service provider on each such vesting date.

SEC source: 0001209191-23-041240 · doc4.xml · nonDerivative · entry 1

PHELAN CATHAL G · CIK 0001259761 · Director · Chief Innovation Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,673

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: 0001209191-23-036387 · doc4.xml · nonDerivative · entry 2

PHELAN CATHAL G · CIK 0001259761 · Director · Chief Innovation Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,673

F1 · kind: These shares were disposed of in non-discretionary transactions to cover the reporting person's tax withholding obligations in connection with the settlement of an award of restricted stock units ("RSU").

F2 · price: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $108.58 to $109.39, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

SEC source: 0001209191-23-036387 · doc4.xml · derivative · entry 3

PHELAN CATHAL G · CIK 0001259761 · Director · Chief Innovation Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 3,529 shares

Expires not disclosed

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.

F3 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Impinj common stock.

F4 · derivative.exercise_date: On June 9, 2022, the reporting person was granted 3,529 RSUs. These RSUs fully vested on June 8, 2023.

F4 · derivative.expiration_date: On June 9, 2022, the reporting person was granted 3,529 RSUs. These RSUs fully vested on June 8, 2023.

SEC source: 0001209191-23-036387 · doc4.xml · nonDerivative · entry 1

PHELAN CATHAL G · CIK 0001259761 · Director · Chief Innovation Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,484

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: 0001209191-23-022907 · doc4.xml · nonDerivative · entry 2

PHELAN CATHAL G · CIK 0001259761 · Director · Chief Innovation Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,955

F1 · kind: These shares were disposed of in non-discretionary transactions to cover the reporting person's tax withholding obligations in connection with the settlement of an award of restricted stock units.

F2 · price: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $131.05 to $131.7001, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

SEC source: 0001209191-23-022907 · doc4.xml · derivative · entry 3

PHELAN CATHAL G · CIK 0001259761 · Director · Chief Innovation Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,000

Underlying: Common Stock · 2,000 shares

Expires not disclosed

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.

F3 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Impinj common stock.

F4 · derivative.exercise_date: The RSUs were approved by the Compensation Committee of the Issuer's Board of Directors on October 1, 2022. 25% of the RSUs vested on January 1, 2023 and the remaining RSUs vest equally on each of April 1, 2023, July 1, 2023 and October 1, 2023, subject in each case to the Reporting Person continuing to be a service provider on each such vesting date.

F4 · derivative.expiration_date: The RSUs were approved by the Compensation Committee of the Issuer's Board of Directors on October 1, 2022. 25% of the RSUs vested on January 1, 2023 and the remaining RSUs vest equally on each of April 1, 2023, July 1, 2023 and October 1, 2023, subject in each case to the Reporting Person continuing to be a service provider on each such vesting date.

SEC source: 0001209191-23-022907 · doc4.xml · nonDerivative · entry 1

PHELAN CATHAL G · CIK 0001259761 · Director · Chief Innovation Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,073

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: 0001209191-23-021246 · doc4.xml · derivative · entry 1

PHELAN CATHAL G · CIK 0001259761 · Director · Chief Innovation Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,610

Underlying: Common Stock · 6,610 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Impinj common stock

F2 · derivative.exercise_date: One-fourth of the shares subject to the grant shall vest on March 23, 2024, and 1/16th of the shares subject to the grant shall vest each quarter thereafter, subject to the reporting person's continued service to the Issuer through such date.

F2 · derivative.expiration_date: One-fourth of the shares subject to the grant shall vest on March 23, 2024, and 1/16th of the shares subject to the grant shall vest each quarter thereafter, subject to the reporting person's continued service to the Issuer through such date.

SEC source: 0001209191-23-011223 · doc4.xml · derivative · entry 1

PHELAN CATHAL G · CIK 0001259761 · Director · Chief Innovation Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,000

Underlying: Common Stock · 22,000 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Impinj common stock

F2 · derivative.exercise_date: One-fourth of the shares subject to the grant shall vest on February 20, 2024, and 1/16th of the shares subject to the grant shall vest each quarter thereafter, subject to the Reporting Person's continued service to the Issuer through such date.

F2 · derivative.expiration_date: One-fourth of the shares subject to the grant shall vest on February 20, 2024, and 1/16th of the shares subject to the grant shall vest each quarter thereafter, subject to the Reporting Person's continued service to the Issuer through such date.

SEC source: 0001209191-23-001405 · doc4.xml · derivative · entry 2

PHELAN CATHAL G · CIK 0001259761 · Director · Chief Innovation Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,000

Underlying: Common Stock · 2,000 shares

Expires not disclosed

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.

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Impinj common stock.

F2 · derivative.exercise_date: The RSUs were approved by the Compensation Committee of the Issuer's Board of Directors on October 1, 2022. 25% of the RSUs vested on January 1, 2023 and the remaining RSUs vest equally on each of April 1, 2023, July 1, 2023 and October 1, 2023, subject in each case to the Reporting Person continuing to be a service provider on each such vesting date.

F2 · derivative.expiration_date: The RSUs were approved by the Compensation Committee of the Issuer's Board of Directors on October 1, 2022. 25% of the RSUs vested on January 1, 2023 and the remaining RSUs vest equally on each of April 1, 2023, July 1, 2023 and October 1, 2023, subject in each case to the Reporting Person continuing to be a service provider on each such vesting date.

SEC source: 0001209191-23-001405 · doc4.xml · nonDerivative · entry 1

PHELAN CATHAL G · CIK 0001259761 · Director · Chief Innovation Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,073

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: 0001209191-22-055135 · doc4.xml · derivative · entry 8

PHELAN CATHAL G · CIK 0001259761 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,000

Underlying: Common Stock · 10,000 shares

Expires 2030-09-21

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.

F8 · derivative.exercise_date: The option was approved on September 18, 2020 by the Compensation Committee of the Issuer's Board of Directors in connection with certain consulting services being provided by the Reporting Person. The Option fully vested on October 21, 2022.

SEC source: 0001209191-22-055135 · doc4.xml · nonDerivative · entry 7

PHELAN CATHAL G · CIK 0001259761 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,073

F1 · kind: The sales reported by Mr. Phelan were effected pursuant to a Rule 10b5-1 trading plan effective on February 11, 2022.

F7 · price: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $112.94 to $113.58, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

SEC source: 0001209191-22-055135 · doc4.xml · nonDerivative · entry 6

PHELAN CATHAL G · CIK 0001259761 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,637

F1 · kind: The sales reported by Mr. Phelan were effected pursuant to a Rule 10b5-1 trading plan effective on February 11, 2022.

F6 · price: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $111.89 to $112.74, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

SEC source: 0001209191-22-055135 · doc4.xml · nonDerivative · entry 5

PHELAN CATHAL G · CIK 0001259761 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,337

F1 · kind: The sales reported by Mr. Phelan were effected pursuant to a Rule 10b5-1 trading plan effective on February 11, 2022.

F5 · price: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $110.88 to $111.86, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

SEC source: 0001209191-22-055135 · doc4.xml · nonDerivative · entry 4

PHELAN CATHAL G · CIK 0001259761 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,173

F1 · kind: The sales reported by Mr. Phelan were effected pursuant to a Rule 10b5-1 trading plan effective on February 11, 2022.

F4 · price: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $109.85 to $110.81, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

SEC source: 0001209191-22-055135 · doc4.xml · nonDerivative · entry 3

PHELAN CATHAL G · CIK 0001259761 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,173

F1 · kind: The sales reported by Mr. Phelan were effected pursuant to a Rule 10b5-1 trading plan effective on February 11, 2022.

F3 · price: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $108.70 to $109.57, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

SEC source: 0001209191-22-055135 · doc4.xml · nonDerivative · entry 2

PHELAN CATHAL G · CIK 0001259761 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,873

F1 · kind: The sales reported by Mr. Phelan were effected pursuant to a Rule 10b5-1 trading plan effective on February 11, 2022.

F2 · price: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $107.53 to $108.47, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

SEC source: 0001209191-22-055135 · doc4.xml · nonDerivative · entry 1

PHELAN CATHAL G · CIK 0001259761 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,073

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: 0001209191-22-051867 · doc4.xml · derivative · entry 1

PHELAN CATHAL G · CIK 0001259761 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,000

Underlying: Common Stock · 8,000 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Impinj common stock.

F2 · derivative.exercise_date: The RSUs were approved by the Compensation Committee of the Issuer's Board of Directors in connection with certain consulting services being provided by the Reporting Person. 25% of the RSUs will vest on each of January 1, 2023, April 1, 2023, July 1, 2023 and October 1, 2023, subject in each case to the Reporting Person continuing to be a service provider on each such vesting date.

F2 · derivative.expiration_date: The RSUs were approved by the Compensation Committee of the Issuer's Board of Directors in connection with certain consulting services being provided by the Reporting Person. 25% of the RSUs will vest on each of January 1, 2023, April 1, 2023, July 1, 2023 and October 1, 2023, subject in each case to the Reporting Person continuing to be a service provider on each such vesting date.

SEC source: 0001209191-22-043932 · doc4.xml · derivative · entry 6

PHELAN CATHAL G · CIK 0001259761 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,000

Underlying: Common Stock · 20,000 shares

Expires 2030-09-21

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 · derivative.exercise_date: The option was approved on September 18, 2020 by the Compensation Committee of the Issuer's Board of Directors in connection with certain consulting services being provided by the Reporting Person. 1/24th of the shares subject to the option shall vest on October 21, 2020 and 1/24th of the shares subject to the option shall vest on each month thereafter, subject to the Reporting Person's continued service to the Issuer through each such date.

SEC source: 0001209191-22-043932 · doc4.xml · nonDerivative · entry 5

PHELAN CATHAL G · CIK 0001259761 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,073

F1 · kind: The sales reported by Mr. Phelan were effected pursuant to a Rule 10b5-1 trading plan effective on February 11, 2022.

F5 · price: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $83.78 to $83.96, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

SEC source: 0001209191-22-043932 · doc4.xml · nonDerivative · entry 4

PHELAN CATHAL G · CIK 0001259761 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,273

F1 · kind: The sales reported by Mr. Phelan were effected pursuant to a Rule 10b5-1 trading plan effective on February 11, 2022.

F4 · price: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $82.20 to $82.93, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

SEC source: 0001209191-22-043932 · doc4.xml · nonDerivative · entry 3

PHELAN CATHAL G · CIK 0001259761 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 33,200

F1 · kind: The sales reported by Mr. Phelan were effected pursuant to a Rule 10b5-1 trading plan effective on February 11, 2022.

F3 · price: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $81.07 to $82.00, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

SEC source: 0001209191-22-043932 · doc4.xml · nonDerivative · entry 2

PHELAN CATHAL G · CIK 0001259761 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 34,544

F1 · kind: The sales reported by Mr. Phelan were effected pursuant to a Rule 10b5-1 trading plan effective on February 11, 2022.

F2 · price: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $80.03 to $80.99, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

SEC source: 0001209191-22-043932 · doc4.xml · nonDerivative · entry 1

PHELAN CATHAL G · CIK 0001259761 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 35,073

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: 0001209191-22-036455 · doc4.xml · derivative · entry 6

PHELAN CATHAL G · CIK 0001259761 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,529

Underlying: Common Stock · 3,529 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Impinj common stock.

F4 · derivative.exercise_date: The restricted stock units will fully vest on the earlier of June 9, 2023 or the date of the 2023 annual meeting of stockholders.

F4 · derivative.expiration_date: The restricted stock units will fully vest on the earlier of June 9, 2023 or the date of the 2023 annual meeting of stockholders.

SEC source: 0001209191-22-036455 · doc4.xml · derivative · entry 5

PHELAN CATHAL G · CIK 0001259761 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 943 shares

Expires not disclosed

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.

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Impinj common stock.

F3 · derivative.exercise_date: On June 9, 2022, the reporting person was granted 943 RSUs. These RSUs fully vested on June 9, 2022.

F3 · derivative.expiration_date: On June 9, 2022, the reporting person was granted 943 RSUs. These RSUs fully vested on June 9, 2022.

SEC source: 0001209191-22-036455 · doc4.xml · derivative · entry 4

PHELAN CATHAL G · CIK 0001259761 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 943

Underlying: Common Stock · 943 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Impinj common stock.

F3 · derivative.exercise_date: On June 9, 2022, the reporting person was granted 943 RSUs. These RSUs fully vested on June 9, 2022.

F3 · derivative.expiration_date: On June 9, 2022, the reporting person was granted 943 RSUs. These RSUs fully vested on June 9, 2022.

SEC source: 0001209191-22-036455 · doc4.xml · derivative · entry 3

PHELAN CATHAL G · CIK 0001259761 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 870 shares

Expires not disclosed

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.

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Impinj common stock.

F2 · derivative.exercise_date: On June 10, 2021, the reporting person was granted 870 RSUs. These RSUs fully vested on June 9, 2022.

F2 · derivative.expiration_date: On June 10, 2021, the reporting person was granted 870 RSUs. These RSUs fully vested on June 9, 2022.

SEC source: 0001209191-22-036455 · doc4.xml · nonDerivative · entry 2

PHELAN CATHAL G · CIK 0001259761 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,073

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: 0001209191-22-036455 · doc4.xml · nonDerivative · entry 1

PHELAN CATHAL G · CIK 0001259761 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,130

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: 0001209191-22-009795 · doc4.xml · derivative · entry 3

PHELAN CATHAL G · CIK 0001259761 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 40,000

Underlying: Common Stock · 20,000 shares

Expires 2030-09-18

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.

F1 · derivative.exercise_date: The option was approved on September 18, 2020 by the Compensation Committee of the Issuer's Board of Directors in connection with certain consulting services being provided by the Reporting Person. 1/24th of the shares subject to the option shall vest on October 21, 2020 and 1/24th of the shares subject to the option shall vest on each month thereafter, subject to the Reporting Person's continued service to the Issuer through each such date.

SEC source: 0001209191-22-009795 · doc4.xml · nonDerivative · entry 2

PHELAN CATHAL G · CIK 0001259761 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,260

SEC source: 0001209191-22-009795 · doc4.xml · nonDerivative · entry 1

PHELAN CATHAL G · CIK 0001259761 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 33,260

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: 0001209191-21-039984 · doc4.xml · derivative · entry 3

PHELAN CATHAL G · CIK 0001259761 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 870

Underlying: Common Stock · 870 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Impinj common stock.

F3 · derivative.exercise_date: The restricted stock units will fully vest on June 10, 2022.

F3 · derivative.expiration_date: The restricted stock units will fully vest on June 10, 2022.

SEC source: 0001209191-21-039984 · doc4.xml · derivative · entry 2

PHELAN CATHAL G · CIK 0001259761 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 2,849 shares

Expires not disclosed

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.

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Impinj common stock.

F2 · derivative.exercise_date: On March 10, 2020, the reporting person was granted 3,561 RSUs. These RSUs fully vested on March 10, 2021.

F2 · derivative.expiration_date: On March 10, 2020, the reporting person was granted 3,561 RSUs. These RSUs fully vested on March 10, 2021.

SEC source: 0001209191-21-039984 · doc4.xml · nonDerivative · entry 1

PHELAN CATHAL G · CIK 0001259761 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,260

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: 0001209191-20-055699 · doc4.xml · derivative · entry 2

PHELAN CATHAL G · CIK 0001259761 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 3,411 shares

Expires not disclosed

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.

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Impinj common stock.

F2 · derivative.exercise_date: On October 23, 2019, the reporting person was granted 3,411 RSUs. These RSUs fully vested on October 23, 2020.

F2 · derivative.expiration_date: On October 23, 2019, the reporting person was granted 3,411 RSUs. These RSUs fully vested on October 23, 2020.

SEC source: 0001209191-20-055699 · doc4.xml · nonDerivative · entry 1

PHELAN CATHAL G · CIK 0001259761 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,411

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.