DIORIO CHRIS PH.D.

SEC source: 0001415889-24-025839 · form4-10312024_091056.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: 319,123

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 $200.00 to $200.9201, 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: 0001415889-24-025839 · form4-10312024_091056.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: 328,912

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 · 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: 0001415889-24-025155 · 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: 0001415889-24-023968 · 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.

SEC source: 0001415889-24-023968 · form4-09252024_090951.xml · derivative · entry 7

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,238

Underlying: Common Stock · 1,224 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.

F6 · derivative.exercise_date: On March 23, 2023, the reporting person was granted 19,580 RSUs. One-sixteenth of these RSUs vested on September 23, 2024.

F6 · derivative.expiration_date: On March 23, 2023, the reporting person was granted 19,580 RSUs. One-sixteenth of these RSUs vested on September 23, 2024.

SEC source: 0001415889-24-023968 · form4-09252024_090951.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: 15,563

Underlying: Common Stock · 2,594 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 March 23, 2022, the reporting person was granted 41,500 RSUs. One-sixteenth of these RSUs vested on September 23, 2024.

F5 · derivative.expiration_date: On March 23, 2022, the reporting person was granted 41,500 RSUs. One-sixteenth of these RSUs vested on September 23, 2024.

SEC source: 0001415889-24-023968 · form4-09252024_090951.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: 294,030

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: 0001415889-24-023968 · form4-09252024_090951.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: 292,806

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: 0001415889-24-023156 · form4-09102024_090942.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: 290,212

SEC source: 0001415889-24-023156 · form4-09102024_090942.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: 310,212

F2 · kind: Change from indirect to direct ownership of shares of Common Stock previously reported as beneficially owned by the reporting person.

SEC source: 0001415889-24-023156 · form4-09102024_090942.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Indirect · by DFT L.L.C.

Disclosed balance after: 532,494

F1 · kind: Distribution of shares of Common Stock held by DFT L.L.C. to its members for no consideration.

SEC source: 0001415889-24-021092 · form4-08122024_080847.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: 290,212

SEC source: 0001415889-24-019597 · form4-07162024_090704.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: 291,412

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: 0001415889-24-019597 · form4-07162024_090704.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: 291,508

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 $175.59 to $176.36, 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: 0001415889-24-019597 · form4-07162024_090704.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: 291,804

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 $174.555 to $175.42, 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: 0001415889-24-019597 · form4-07162024_090704.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: 9,375

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 July 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 July 12, 2024.

SEC source: 0001415889-24-019597 · form4-07162024_090704.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: 292,599

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: 0001415889-24-019445 · form4-07092024_110755.xml · derivative · entry 6

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 75,536

Underlying: Common Stock · 5,000 shares

Expires 2028-06-15

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.

F5 · derivative.exercise_date: The option became fully vested on June 11, 2022.

SEC source: 0001415889-24-019445 · form4-07092024_110755.xml · nonDerivative · entry 4

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 289,474

F1 · kind: The sales reported by Dr. Diorio were effected pursuant to a Rule 10b5-1 trading plan effective on February 28, 2024.

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 $163.115 to $163.1825, 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: 0001415889-24-019445 · form4-07092024_110755.xml · nonDerivative · entry 3

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 289,996

F1 · kind: The sales reported by Dr. Diorio were effected pursuant to a Rule 10b5-1 trading plan effective on February 28, 2024.

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 $162.10 to $163.08, 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: 0001415889-24-019445 · form4-07092024_110755.xml · nonDerivative · entry 2

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 292,977

F1 · kind: The sales reported by Dr. Diorio were effected pursuant to a Rule 10b5-1 trading plan effective on February 28, 2024.

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 $161.0901 to $162.02, 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: 0001415889-24-019445 · form4-07092024_110755.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 294,474

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: 0001415889-24-018977 · form4-07022024_090747.xml · derivative · entry 14

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 80,536

Underlying: Common Stock · 5,000 shares

Expires 2028-06-15

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.

F10 · derivative.exercise_date: The option became fully vested on June 11, 2022.

SEC source: 0001415889-24-018977 · form4-07022024_090747.xml · nonDerivative · entry 11

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 289,474

F1 · kind: The sales reported by Dr. Diorio were effected pursuant to a Rule 10b5-1 trading plan effective on February 28, 2024.

SEC source: 0001415889-24-018977 · form4-07022024_090747.xml · nonDerivative · entry 10

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 289,824

F1 · kind: The sales reported by Dr. Diorio were effected pursuant to a Rule 10b5-1 trading plan effective on February 28, 2024.

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 $155.25 to $156.245, 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: 0001415889-24-018977 · form4-07022024_090747.xml · nonDerivative · entry 9

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 293,391

F1 · kind: The sales reported by Dr. Diorio were effected pursuant to a Rule 10b5-1 trading plan effective on February 28, 2024.

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 $154.25 to $155.22, 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: 0001415889-24-018977 · form4-07022024_090747.xml · nonDerivative · entry 8

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 294,474

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: 0001415889-24-018977 · form4-07022024_090747.xml · derivative · entry 13

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 85,536

Underlying: Common Stock · 5,000 shares

Expires 2028-06-15

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.

F10 · derivative.exercise_date: The option became fully vested on June 11, 2022.

SEC source: 0001415889-24-018977 · form4-07022024_090747.xml · nonDerivative · entry 7

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 289,474

F1 · kind: The sales reported by Dr. Diorio were effected pursuant to a Rule 10b5-1 trading plan effective on February 28, 2024.

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 $156.32 to $156.6775, 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: 0001415889-24-018977 · form4-07022024_090747.xml · nonDerivative · entry 6

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 290,306

F1 · kind: The sales reported by Dr. Diorio were effected pursuant to a Rule 10b5-1 trading plan effective on February 28, 2024.

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 $155.265 to $156.025, 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: 0001415889-24-018977 · form4-07022024_090747.xml · nonDerivative · entry 5

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 291,399

F1 · kind: The sales reported by Dr. Diorio were effected pursuant to a Rule 10b5-1 trading plan effective on February 28, 2024.

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 $154.09 to $154.99, 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: 0001415889-24-018977 · form4-07022024_090747.xml · nonDerivative · entry 4

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 291,808

F1 · kind: The sales reported by Dr. Diorio were effected pursuant to a Rule 10b5-1 trading plan effective on February 28, 2024.

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 $153.045 to $153.905, 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: 0001415889-24-018977 · form4-07022024_090747.xml · nonDerivative · entry 3

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 293,193

F1 · kind: The sales reported by Dr. Diorio were effected pursuant to a Rule 10b5-1 trading plan effective on February 28, 2024.

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 $151.975 to $152.855, 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: 0001415889-24-018977 · form4-07022024_090747.xml · nonDerivative · entry 2

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 293,585

F1 · kind: The sales reported by Dr. Diorio were effected pursuant to a Rule 10b5-1 trading plan effective on February 28, 2024.

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 $150.84 to $151.83, 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: 0001415889-24-018977 · form4-07022024_090747.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 294,474

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: 0001415889-24-018171 · form4-06252024_110654.xml · derivative · entry 14

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 90,536

Underlying: Common Stock · 5,000 shares

Expires 2028-06-15

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.

F11 · derivative.exercise_date: The option became fully vested on June 11, 2022.

SEC source: 0001415889-24-018171 · form4-06252024_110654.xml · nonDerivative · entry 9

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 289,474

F4 · kind: The sales reported by Dr. Diorio were effected pursuant to a Rule 10b5-1 trading plan effective on February 28, 2024.

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 $150.00 to $150.155, 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: 0001415889-24-018171 · form4-06252024_110654.xml · nonDerivative · entry 8

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 294,474

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: 0001415889-24-018171 · form4-06252024_110654.xml · derivative · entry 13

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 95,536

Underlying: Common Stock · 5,000 shares

Expires 2028-06-15

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.

F11 · derivative.exercise_date: The option became fully vested on June 11, 2022.

SEC source: 0001415889-24-018171 · form4-06252024_110654.xml · nonDerivative · entry 7

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 289,474

F4 · kind: The sales reported by Dr. Diorio were effected pursuant to a Rule 10b5-1 trading plan effective on February 28, 2024.

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 $148.20 to $149.13, 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: 0001415889-24-018171 · form4-06252024_110654.xml · nonDerivative · entry 6

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 292,115

F4 · kind: The sales reported by Dr. Diorio were effected pursuant to a Rule 10b5-1 trading plan effective on February 28, 2024.

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 $147.20 to $148.14, 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: 0001415889-24-018171 · form4-06252024_110654.xml · nonDerivative · entry 5

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 294,474

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: 0001415889-24-018171 · form4-06252024_110654.xml · nonDerivative · entry 4

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 289,474

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 $147.96 to $148.83, 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: 0001415889-24-018171 · form4-06252024_110654.xml · nonDerivative · entry 3

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 290,040

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 $146.895 to $147.485, 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: 0001415889-24-018171 · form4-06252024_110654.xml · derivative · entry 12

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 13,462

Underlying: Common Stock · 1,223 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.

F8 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Impinj common stock.

F10 · derivative.exercise_date: On March 23, 2023, the reporting person was granted 19,580 RSUs. One-sixteenth of these RSUs vested on June 23, 2024.

F10 · derivative.expiration_date: On March 23, 2023, the reporting person was granted 19,580 RSUs. One-sixteenth of these RSUs vested on June 23, 2024.