PI

SEC source: 0001415889-24-025784 · form4-10302024_101034.xml · derivative · entry 9

MECKLAI HUSSEIN · CIK 0001908089 · CHIEF OPERATING OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 459 shares

Expires 2029-07-31

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_date: Twenty-five percent (25%) of the shares subject to the option vested July 31, 2020, then one-forty-eighth (1/48) of the shares subject to the option vest every month thereafter (on the same day of the month), subject to the reporting person continuing to be a Service Provider, as defined in the Issuer's 2016 Plan.

SEC source: 0001415889-24-025784 · form4-10302024_101034.xml · derivative · entry 8

MECKLAI HUSSEIN · CIK 0001908089 · CHIEF OPERATING OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,344

Underlying: Common Stock · 7,040 shares

Expires 2028-12-10

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_date: Twenty-five percent (25%) of the shares subject to the option vested on December 5, 2019, then one-forty-eighth (1/48) of the shares subject to the option vest every month thereafter (on the same day of the month), subject to the reporting person continuing to be a Service Provider, as defined in the Issuer's 2016 Equity Incentive Plan (the "2016 Plan").

SEC source: 0001415889-24-025784 · form4-10302024_101034.xml · nonDerivative · entry 6

MECKLAI HUSSEIN · CIK 0001908089 · CHIEF OPERATING OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 60,041

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 $205.315 to $205.895, 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: 0001415889-24-025784 · form4-10302024_101034.xml · nonDerivative · entry 5

MECKLAI HUSSEIN · CIK 0001908089 · CHIEF OPERATING OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 63,266

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 $204.28 to $205.14, 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: 0001415889-24-025784 · form4-10302024_101034.xml · nonDerivative · entry 4

MECKLAI HUSSEIN · CIK 0001908089 · CHIEF OPERATING OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 70,041

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: 0001415889-24-025784 · form4-10302024_101034.xml · nonDerivative · entry 3

MECKLAI HUSSEIN · CIK 0001908089 · CHIEF OPERATING OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 69,228

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: 0001415889-24-025784 · form4-10302024_101034.xml · nonDerivative · entry 2

MECKLAI HUSSEIN · CIK 0001908089 · CHIEF OPERATING OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 67,540

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: 0001415889-24-025784 · form4-10302024_101034.xml · nonDerivative · entry 1

MECKLAI HUSSEIN · CIK 0001908089 · CHIEF OPERATING OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 67,081

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: 0001415889-24-025782 · form4-10302024_101042.xml · derivative · entry 14

Baker Cary · CIK 0001705407 · CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,303 shares

Expires 2030-06-15

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.

F12 · derivative.exercise_date: Twenty-five percent (25%) of the shares subject to the option vested on June 15, 2021, then one-forty-eighth (1/48) of the shares subject to the option vest every month thereafter (on the same day of the month), subject to the reporting person continuing to be a Service Provider, as defined in the 2016 Plan.

SEC source: 0001415889-24-025782 · form4-10302024_101042.xml · derivative · entry 13

Baker Cary · CIK 0001705407 · CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,500

Underlying: Common Stock · 13,697 shares

Expires 2030-02-24

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.

F11 · derivative.exercise_date: Twenty-five percent (25%) of the shares subject to the option vested on February 24, 2021, then one-forty-eighth (1/48) of the shares subject to the option vest every month thereafter (on the same day of the month), subject to the reporting person continuing to be a Service Provider, as defined in the Issuer's 2016 Equity Incentive Plan (the "2016 Plan").

SEC source: 0001415889-24-025782 · form4-10302024_101042.xml · nonDerivative · entry 11

Baker Cary · CIK 0001705407 · CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 71,096

F9 · 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 $208.24 to $209.055, 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: 0001415889-24-025782 · form4-10302024_101042.xml · nonDerivative · entry 10

Baker Cary · CIK 0001705407 · CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 72,192

F8 · 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 $207.065 to $208.06, 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: 0001415889-24-025782 · form4-10302024_101042.xml · nonDerivative · entry 9

Baker Cary · CIK 0001705407 · CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 73,257

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 $206.015 to $207.01, 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: 0001415889-24-025782 · form4-10302024_101042.xml · nonDerivative · entry 8

Baker Cary · CIK 0001705407 · CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 75,346

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 $204.99 to $205.66, 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: 0001415889-24-025782 · form4-10302024_101042.xml · nonDerivative · entry 7

Baker Cary · CIK 0001705407 · CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 77,856

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 $203.965 to $204.80, 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: 0001415889-24-025782 · form4-10302024_101042.xml · nonDerivative · entry 6

Baker Cary · CIK 0001705407 · CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 82,826

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 $202.925 to $203.90, 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: 0001415889-24-025782 · form4-10302024_101042.xml · nonDerivative · entry 5

Baker Cary · CIK 0001705407 · CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 84,120

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 $201.91 to $202.87, 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: 0001415889-24-025782 · form4-10302024_101042.xml · nonDerivative · entry 4

Baker Cary · CIK 0001705407 · CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 84,950

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 $200.91 to $201.84, 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: 0001415889-24-025782 · form4-10302024_101042.xml · nonDerivative · entry 3

Baker Cary · CIK 0001705407 · CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 85,526

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 $199.84 to $200.82, 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: 0001415889-24-025782 · form4-10302024_101042.xml · nonDerivative · entry 2

Baker Cary · CIK 0001705407 · CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 86,096

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: 0001415889-24-025782 · form4-10302024_101042.xml · nonDerivative · entry 1

Baker Cary · CIK 0001705407 · CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 84,793

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: 0001415889-24-025157 · form4-10152024_111000.xml · nonDerivative · entry 3

MECKLAI HUSSEIN · CIK 0001908089 · CHIEF OPERATING OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 60,041

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 ("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 $237.945 to $238.70, 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: 0001415889-24-025157 · form4-10152024_111000.xml · nonDerivative · entry 2

MECKLAI HUSSEIN · CIK 0001908089 · CHIEF OPERATING OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 60,245

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 ("RSUs").

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 $236.85 to $237.805, 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: 0001415889-24-025156 · form4-10152024_111019.xml · nonDerivative · entry 4

DOSSETT JEFFREY · CIK 0001578147 · CHIEF REVENUE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 65,294

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 ("RSUs").

SEC source: 0001415889-24-025156 · form4-10152024_111019.xml · nonDerivative · entry 3

DOSSETT JEFFREY · CIK 0001578147 · CHIEF REVENUE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 65,306

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 ("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 $237.95 to $238.70, 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: 0001415889-24-025156 · form4-10152024_111019.xml · nonDerivative · entry 2

DOSSETT JEFFREY · CIK 0001578147 · CHIEF REVENUE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 65,532

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 ("RSUs").

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 $236.83 to $237.76, 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: 0001415889-24-025155 · form4-10152024_111035.xml · derivative · entry 6

DIORIO CHRIS PH.D. · CIK 0001677721 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,250

Underlying: Common Stock · 3,125 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 RSU represents a contingent right to receive one share of Impinj common stock.

F5 · derivative.exercise_date: On April 12, 2021, the reporting person was granted 50,000 RSUs, one fourth of which vested on April 12, 2022, with an additional one-sixteenth of such RSUs vesting every three months thereafter. One-sixteenth of these RSUs vested on October 12, 2024.

F5 · derivative.expiration_date: On April 12, 2021, the reporting person was granted 50,000 RSUs, one fourth of which vested on April 12, 2022, with an additional one-sixteenth of such RSUs vesting every three months thereafter. One-sixteenth of these RSUs vested on October 12, 2024.

SEC source: 0001415889-24-025155 · form4-10152024_111035.xml · nonDerivative · entry 4

DIORIO CHRIS PH.D. · CIK 0001677721 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 294,438

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 ("RSUs").

SEC source: 0001415889-24-025155 · form4-10152024_111035.xml · nonDerivative · entry 3

DIORIO CHRIS PH.D. · CIK 0001677721 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 294,450

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 ("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 $237.94 to $238.70, 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: 0001415889-24-025155 · form4-10152024_111035.xml · nonDerivative · entry 2

DIORIO CHRIS PH.D. · CIK 0001677721 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 295,111

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 ("RSUs").

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 $236.83 to $237.76, 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: 0001415889-24-025154 · form4-10152024_111039.xml · nonDerivative · entry 4

Baker Cary · CIK 0001705407 · CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 71,096

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 ("RSUs").

SEC source: 0001415889-24-025154 · form4-10152024_111039.xml · nonDerivative · entry 3

Baker Cary · CIK 0001705407 · CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 71,099

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 ("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 $237.85 to $238.70, 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: 0001415889-24-025154 · form4-10152024_111039.xml · nonDerivative · entry 2

Baker Cary · CIK 0001705407 · CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 71,273

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 ("RSUs").

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 $236.83 to $237.76, 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: 0001415889-24-025157 · form4-10152024_111000.xml · derivative · entry 4

MECKLAI HUSSEIN · CIK 0001908089 · CHIEF OPERATING OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,188

Underlying: Common Stock · 1,094 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 RSU represents a contingent right to receive one share of Impinj common stock.

F5 · derivative.exercise_date: On April 12, 2021, the reporting person was granted 17,500 RSUs, one fourth of which vested on April 12, 2022, with an additional one-sixteenth of such RSUs vesting every three months thereafter. One-sixteenth of these RSUs vested on October 12, 2024.

F5 · derivative.expiration_date: On April 12, 2021, the reporting person was granted 17,500 RSUs, one fourth of which vested on April 12, 2022, with an additional one-sixteenth of such RSUs vesting every three months thereafter. One-sixteenth of these RSUs vested on October 12, 2024.

SEC source: 0001415889-24-025157 · form4-10152024_111000.xml · nonDerivative · entry 1

MECKLAI HUSSEIN · CIK 0001908089 · CHIEF OPERATING OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 60,468

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: 0001415889-24-025156 · form4-10152024_111019.xml · derivative · entry 5

DOSSETT JEFFREY · CIK 0001578147 · CHIEF REVENUE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,500

Underlying: Common Stock · 1,250 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 RSU represents a contingent right to receive one share of Impinj common stock.

F5 · derivative.exercise_date: On April 12, 2021, the reporting person was granted 20,000 RSUs, one fourth of which vested on April 12, 2022, with an additional one-sixteenth of such RSUs vesting every three months thereafter. One-sixteenth of these RSUs vested on October 12, 2024.

F5 · derivative.expiration_date: On April 12, 2021, the reporting person was granted 20,000 RSUs, one fourth of which vested on April 12, 2022, with an additional one-sixteenth of such RSUs vesting every three months thereafter. One-sixteenth of these RSUs vested on October 12, 2024.

SEC source: 0001415889-24-025156 · form4-10152024_111019.xml · nonDerivative · entry 1

DOSSETT JEFFREY · CIK 0001578147 · CHIEF REVENUE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 65,782

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: 0001415889-24-025155 · form4-10152024_111035.xml · nonDerivative · entry 1

DIORIO CHRIS PH.D. · CIK 0001677721 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 295,657

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: 0001415889-24-025154 · form4-10152024_111039.xml · derivative · entry 5

Baker Cary · CIK 0001705407 · CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,875

Underlying: Common Stock · 938 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 RSU represents a contingent right to receive one share of Impinj common stock.

F5 · derivative.exercise_date: On April 12, 2021, the reporting person was granted 15,000 RSUs, one fourth of which vested on April 12, 2022, with an additional one-sixteenth of such RSUs vesting every three months thereafter. One-sixteenth of these RSUs vested on October 12, 2024.

F5 · derivative.expiration_date: On April 12, 2021, the reporting person was granted 15,000 RSUs, one fourth of which vested on April 12, 2022, with an additional one-sixteenth of such RSUs vesting every three months thereafter. One-sixteenth of these RSUs vested on October 12, 2024.

SEC source: 0001415889-24-025154 · form4-10152024_111039.xml · nonDerivative · entry 1

Baker Cary · CIK 0001705407 · CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 71,462

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: 0001415889-24-023971 · form4-09252024_090947.xml · nonDerivative · entry 3

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,647

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.

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 $209.515 to $210.22, 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: 0001415889-24-023971 · form4-09252024_090947.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,706

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.

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 $208.38 to $209.36 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: 0001415889-24-023970 · form4-09252024_090930.xml · nonDerivative · entry 4

MECKLAI HUSSEIN · CIK 0001908089 · CHIEF OPERATING OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 59,374

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 ("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 $209.61 to $210.27, 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: 0001415889-24-023970 · form4-09252024_090930.xml · nonDerivative · entry 3

MECKLAI HUSSEIN · CIK 0001908089 · CHIEF OPERATING OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 59,686

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 ("RSUs").

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 $208.38 to $209.145, 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: 0001415889-24-023967 · form4-09252024_090931.xml · nonDerivative · entry 4

Baker Cary · CIK 0001705407 · CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 70,524

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 ("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 $209.60 to $210.22, 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: 0001415889-24-023967 · form4-09252024_090931.xml · nonDerivative · entry 3

Baker Cary · CIK 0001705407 · CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 70,690

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 ("RSUs").

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 $208.38 to $209.27, 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: 0001415889-24-023969 · form4-09252024_090917.xml · nonDerivative · entry 4

DOSSETT JEFFREY · CIK 0001578147 · CHIEF REVENUE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 64,532

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 ("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 $209.70 to $210.22, 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: 0001415889-24-023969 · form4-09252024_090917.xml · nonDerivative · entry 3

DOSSETT JEFFREY · CIK 0001578147 · CHIEF REVENUE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 64,736

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 ("RSUs").

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 $208.38 to $209.27, 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: 0001415889-24-023968 · form4-09252024_090951.xml · nonDerivative · entry 4

DIORIO CHRIS PH.D. · CIK 0001677721 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 292,532

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 ("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 $209.65 to $210.26, 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: 0001415889-24-023968 · form4-09252024_090951.xml · nonDerivative · entry 3

DIORIO CHRIS PH.D. · CIK 0001677721 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 293,010

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 ("RSUs").

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 $208.295 to $209.27, 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.