PI

SEC source: 0001415889-24-017475 · form4-06182024_090634.xml · derivative · entry 4

DOSSETT JEFFREY · CIK 0001578147 · CHIEF REVENUE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,875 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 June 15, 2020, the reporting person was granted 30,000 RSUs, one fourth of which vested on June 15, 2021, with an additional one-sixteenth of such RSUs vesting every three months thereafter. One-sixteenth of these RSUs vested on June 15, 2024.

F5 · derivative.expiration_date: On June 15, 2020, the reporting person was granted 30,000 RSUs, one fourth of which vested on June 15, 2021, with an additional one-sixteenth of such RSUs vesting every three months thereafter. One-sixteenth of these RSUs vested on June 15, 2024.

SEC source: 0001415889-24-017474 · form4-06182024_090610.xml · derivative · entry 12

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,563 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.

F9 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Impinj common stock.

F10 · derivative.exercise_date: On June 15, 2020, the reporting person was granted 25,000 RSUs, one fourth of which vested on June 15, 2021, with an additional one-sixteenth of such RSUs vesting every three months thereafter. One-sixteenth of these RSUs vested on June 15, 2024.

F10 · derivative.expiration_date: On June 15, 2020, the reporting person was granted 25,000 RSUs, one fourth of which vested on June 15, 2021, with an additional one-sixteenth of such RSUs vesting every three months thereafter. One-sixteenth of these RSUs vested on June 15, 2024.

SEC source: 0001415889-24-017474 · form4-06182024_090610.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 287,793

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: 0001415889-24-017475 · form4-06182024_090634.xml · nonDerivative · entry 1

DOSSETT JEFFREY · CIK 0001578147 · CHIEF REVENUE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 62,725

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: 0001415889-24-016431 · form4-06112024_100636.xml · derivative · entry 11

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 110,536

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.

F7 · derivative.exercise_date: The option became fully vested on June 11, 2022.

SEC source: 0001415889-24-016431 · form4-06112024_100636.xml · nonDerivative · entry 8

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 286,230

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: 0001415889-24-016431 · form4-06112024_100636.xml · nonDerivative · entry 7

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 286,234

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 $146.33 to $147.25, 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: 0001415889-24-016431 · form4-06112024_100636.xml · nonDerivative · entry 6

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 289,111

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 $145.29 to $146.2625, 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: 0001415889-24-016431 · form4-06112024_100636.xml · nonDerivative · entry 5

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 291,230

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: 0001415889-24-016431 · form4-06112024_100636.xml · derivative · entry 10

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 115,536

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.

F7 · derivative.exercise_date: The option became fully vested on June 11, 2022.

SEC source: 0001415889-24-016431 · form4-06112024_100636.xml · nonDerivative · entry 4

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 286,230

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 $149.27 to $149.41 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: 0001415889-24-016431 · form4-06112024_100636.xml · nonDerivative · entry 3

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 286,342

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 $147.925 to $148.60, 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: 0001415889-24-016431 · form4-06112024_100636.xml · nonDerivative · entry 2

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 288,561

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 $146.915 to $147.85, 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: 0001415889-24-016431 · form4-06112024_100636.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 291,230

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: 0001415889-24-016430 · form4-06112024_100646.xml · nonDerivative · entry 1

WASHINGTON MIRON · CIK 0001969449 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 571

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 $147.7902 to $148.05, 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: 0001415889-24-016027 · form4-06072024_080639.xml · derivative · entry 3

WASHINGTON MIRON · CIK 0001969449 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,811

Underlying: Common Stock · 1,811 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 RSUs will fully vest on the earlier of June 6, 2025 or the date of the 2025 annual meeting of stockholders.

F3 · derivative.expiration_date: The RSUs will fully vest on the earlier of June 6, 2025 or the date of the 2025 annual meeting of stockholders.

SEC source: 0001415889-24-016027 · form4-06072024_080639.xml · derivative · entry 2

WASHINGTON MIRON · CIK 0001969449 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,729 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 8, 2023, the reporting person was granted 1,729 RSUs. These RSUs fully vested on June 6, 2024.

F2 · derivative.expiration_date: On June 8, 2023, the reporting person was granted 1,729 RSUs. These RSUs fully vested on June 6, 2024.

SEC source: 0001415889-24-016027 · form4-06072024_080639.xml · nonDerivative · entry 1

WASHINGTON MIRON · CIK 0001969449 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,071

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: 0001415889-24-016025 · form4-06072024_080631.xml · derivative · entry 4

SANGHI STEVE · CIK 0001181928 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,992

Underlying: Common Stock · 1,992 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 RSUs will fully vest on the earlier of June 6, 2025 or the date of the 2025 annual meeting of stockholders.

F3 · derivative.expiration_date: The RSUs will fully vest on the earlier of June 6, 2025 or the date of the 2025 annual meeting of stockholders.

SEC source: 0001415889-24-016025 · form4-06072024_080631.xml · derivative · entry 3

SANGHI STEVE · CIK 0001181928 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,945 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 8, 2023, the reporting person was granted 1,945 RSUs. These RSUs fully vested on June 6, 2024.

F2 · derivative.expiration_date: On June 8, 2023, the reporting person was granted 1,945 RSUs. These RSUs fully vested on June 6, 2024.

SEC source: 0001415889-24-016025 · form4-06072024_080631.xml · nonDerivative · entry 1

SANGHI STEVE · CIK 0001181928 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,857

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: 0001415889-24-016022 · form4-06072024_080636.xml · derivative · entry 3

Rao Meera · CIK 0001480603 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,811

Underlying: Common Stock · 1,811 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 RSUs will fully vest on the earlier of June 6, 2025 or the date of the 2025 annual meeting of stockholders.

F3 · derivative.expiration_date: The RSUs will fully vest on the earlier of June 6, 2025 or the date of the 2025 annual meeting of stockholders.

SEC source: 0001415889-24-016022 · form4-06072024_080636.xml · derivative · entry 2

Rao Meera · CIK 0001480603 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,729 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 8, 2023, the reporting person was granted 1,729 RSUs. These RSUs fully vested on June 6, 2024.

F2 · derivative.expiration_date: On June 8, 2023, the reporting person was granted 1,729 RSUs. These RSUs fully vested on June 6, 2024.

SEC source: 0001415889-24-016022 · form4-06072024_080636.xml · nonDerivative · entry 1

Rao Meera · CIK 0001480603 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,397

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: 0001415889-24-016018 · form4-06072024_080627.xml · derivative · entry 3

PADVAL UMESH · CIK 0001300840 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,811

Underlying: Common Stock · 1,811 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 RSUs will fully vest on the earlier of June 6, 2025 or the date of the 2025 annual meeting of stockholders.

F3 · derivative.expiration_date: The RSUs will fully vest on the earlier of June 6, 2025 or the date of the 2025 annual meeting of stockholders.

SEC source: 0001415889-24-016018 · form4-06072024_080627.xml · derivative · entry 2

PADVAL UMESH · CIK 0001300840 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,729 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 8, 2023, the reporting person was granted 1,729 RSUs. These RSUs fully vested on June 6, 2024.

F2 · derivative.expiration_date: On June 8, 2023, the reporting person was granted 1,729 RSUs. These RSUs fully vested on June 6, 2024.

SEC source: 0001415889-24-016018 · form4-06072024_080627.xml · nonDerivative · entry 1

PADVAL UMESH · CIK 0001300840 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,258

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: 0002003074-24-000004 · primary_doc.xml · derivative · entry 4

SYLEBRA CAPITAL LLC · CIK 0002003074 · 10% owner

Gibson Daniel Patrick · CIK 0001745725 · Director

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,811

Underlying: Common Stock · 1,811 shares

Expires not disclosed

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

F5 · derivative.exercise_date: The RSUs will fully vest on the earlier of June 6, 2025 or the date of the 2025 annual meeting of stockholders.

F5 · derivative.expiration_date: The RSUs will fully vest on the earlier of June 6, 2025 or the date of the 2025 annual meeting of stockholders.

SEC source: 0002003074-24-000004 · primary_doc.xml · derivative · entry 3

SYLEBRA CAPITAL LLC · CIK 0002003074 · 10% owner

Gibson Daniel Patrick · CIK 0001745725 · Director

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,729 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 ("RSU") represents a contingent right to receive one share of Impinj common stock.

F4 · derivative.exercise_date: June 8, 2023, the reporting person was granted 1,729 RSUs. These RSUs fully vested on June 6, 2024.

F4 · derivative.expiration_date: June 8, 2023, the reporting person was granted 1,729 RSUs. These RSUs fully vested on June 6, 2024.

SEC source: 0002003074-24-000004 · primary_doc.xml · nonDerivative · entry 2

SYLEBRA CAPITAL LLC · CIK 0002003074 · 10% owner

Gibson Daniel Patrick · CIK 0001745725 · Director

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,085

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: 0002003074-24-000004 · primary_doc.xml · nonDerivative · entry 1

SYLEBRA CAPITAL LLC · CIK 0002003074 · 10% owner

Gibson Daniel Patrick · CIK 0001745725 · Director

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 3,197,352

F1 · ownership.nature: Sylebra Capital LLC (Sylebra US) and Sylebra Capital Limited (Sylebra HK) are the investment sub-advisers to Sylebra Capital Partners Master Fund, Ltd. (SCP MF), Sylebra Capital Parc Master Fund (PARC MF), Sylebra Capital Menlo Master Fund (MENLO MF), and other advisory clients. Sylebra Capital Management (Sylebra Cayman) is the investment manager and parent of Sylebra HK. Sylebra Cayman owns 100% of the shares of Sylebra HK, and Daniel Patrick Gibson (Gibson) owns 100% of Class A shares of Sylebra Cayman and 100% of the share capital of Sylebra US. Gibson is a founder and Chief Investment Officer of Sylebra Cayman. In such capacities, Sylebra US, Sylebra HK, Sylebra Cayman and Gibson may be deemed to share voting and dispositive power over the shares of common stock of the Issuer held by SCP MF, PARC MF, MENLOMF, and other advisory clients.

F2 · ownership.nature: These securities are held by SCP MF, PARC MF, MENLO MF, and other advisory clients. Gibson is a member of the board of directors of the Issuer. Sylebra US, Sylebra HK,Sylebra Cayman and Gibson disclaim beneficial ownership of these securities, and this report shall not be deemed an admission that Sylebra US, Sylebra HK, Sylebra Cayman and Gibson are the beneficial owners of such securities, except to the extent of their pecuniary interest, if any, therein.

SEC source: 0001415889-24-015421 · form4-06042024_090637.xml · derivative · entry 15

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 120,536

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.

F7 · derivative.exercise_date: The option became fully vested on June 11, 2022.

SEC source: 0001415889-24-015421 · form4-06042024_090637.xml · nonDerivative · entry 11

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 286,230

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: 0001415889-24-015421 · form4-06042024_090637.xml · nonDerivative · entry 10

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 286,730

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 $164.51 to $165.275, 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: 0001415889-24-015421 · form4-06042024_090637.xml · nonDerivative · entry 9

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 290,154

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 $163.51 to $164.49, 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: 0001415889-24-015421 · form4-06042024_090637.xml · nonDerivative · entry 8

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 291,230

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: 0001415889-24-015421 · form4-06042024_090637.xml · derivative · entry 14

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 125,536

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.

F7 · derivative.exercise_date: The option became fully vested on June 11, 2022.

SEC source: 0001415889-24-015421 · form4-06042024_090637.xml · nonDerivative · entry 7

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 286,230

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: 0001415889-24-015421 · form4-06042024_090637.xml · nonDerivative · entry 6

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 286,330

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 $164.03 to $164.68, 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: 0001415889-24-015421 · form4-06042024_090637.xml · nonDerivative · entry 5

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 288,966

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 $162.89 to $163.71 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: 0001415889-24-015421 · form4-06042024_090637.xml · nonDerivative · entry 4

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 290,190

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 $161.675 to $162.50, 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: 0001415889-24-015421 · form4-06042024_090637.xml · nonDerivative · entry 3

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 291,230

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: 0001415889-24-015421 · form4-06042024_090637.xml · derivative · entry 13

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 130,536

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.

F7 · derivative.exercise_date: The option became fully vested on June 11, 2022.

SEC source: 0001415889-24-015421 · form4-06042024_090637.xml · nonDerivative · entry 2

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 286,230

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: 0001415889-24-015421 · form4-06042024_090637.xml · nonDerivative · entry 1

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

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 291,230

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: 0001415889-24-013984 · form4-05212024_090559.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,468

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 $166.90 to $167.19 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: 0001415889-24-013984 · form4-05212024_090559.xml · derivative · entry 3

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,125

Underlying: Common Stock · 1,375 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: One-fourth of the shares subject to the grant vested on February 20, 2024, and 1/16th of the shares subject to the grant vest each quarter thereafter, subject to the Reporting Person's continued service to the Issuer through such date.

F4 · derivative.expiration_date: One-fourth of the shares subject to the grant vested on February 20, 2024, and 1/16th of the shares subject to the grant vest each quarter thereafter, subject to the Reporting Person's continued service to the Issuer through such date.

SEC source: 0001415889-24-013984 · form4-05212024_090559.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,176

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: 0001415889-24-012208 · form4-05032024_050501.xml · derivative · entry 6

Baker Cary · CIK 0001705407 · CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,197

Underlying: Common Stock · 10,000 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.

F5 · derivative.exercise_date: Twenty-five percent (25%) of the shares subject to the option will vest on February 24, 2021, then one-forty-eighth (1/48) of the shares subject to the option will 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.

SEC source: 0001415889-24-012208 · form4-05032024_050501.xml · nonDerivative · entry 5

Baker Cary · CIK 0001705407 · CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 67,948

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 $160.41 to $161.29, 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.