PI

SEC source: 0001209191-23-059801 · doc4.xml · nonDerivative · entry 2

Baker Cary · CIK 0001705407 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 54,773

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 $89.37 to $89.93, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

SEC source: 0001209191-23-059798 · doc4.xml · nonDerivative · entry 2

DOSSETT JEFFREY · CIK 0001578147 · Chief Revenue Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 45,239

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 $89.33 to $90.04, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

SEC source: 0001209191-23-059805 · doc4.xml · derivative · entry 4

DIORIO CHRIS PH.D. · CIK 0001677721 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,344

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.

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

F4 · derivative.exercise_date: On March 23, 2022, the reporting person was granted 41,500 RSUs, one fourth of which vested on March 23, 2023, with an additional one-sixteenth of such RSUs vesting every three months thereafter. One-sixteenth of these RSUs vested on December 23, 2023.

F4 · derivative.expiration_date: On March 23, 2022, the reporting person was granted 41,500 RSUs, one fourth of which vested on March 23, 2023, with an additional one-sixteenth of such RSUs vesting every three months thereafter. One-sixteenth of these RSUs vested on December 23, 2023.

SEC source: 0001209191-23-059805 · doc4.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: 252,042

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001209191-23-059803 · doc4.xml · derivative · entry 3

MECKLAI HUSSEIN · CIK 0001908089 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,063

Underlying: Common Stock · 1,562 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

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

F4 · derivative.exercise_date: On March 23, 2022, the reporting person was granted 25,000 RSUs. One-sixteenth of these RSUs vested on December 23, 2023.

F4 · derivative.expiration_date: On March 23, 2022, the reporting person was granted 25,000 RSUs. One-sixteenth of these RSUs vested on December 23, 2023.

SEC source: 0001209191-23-059803 · doc4.xml · nonDerivative · entry 1

MECKLAI HUSSEIN · CIK 0001908089 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,323

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001209191-23-059801 · doc4.xml · derivative · entry 3

Baker Cary · CIK 0001705407 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,032

Underlying: Common Stock · 781 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

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

F4 · derivative.exercise_date: On March 23, 2022, the reporting person was granted 12,500 RSUs, one sixteenth of which vested on December 23, 2023.

F4 · derivative.expiration_date: On March 23, 2022, the reporting person was granted 12,500 RSUs, one sixteenth of which vested on December 23, 2023.

SEC source: 0001209191-23-059801 · doc4.xml · nonDerivative · entry 1

Baker Cary · CIK 0001705407 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 55,075

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001209191-23-059798 · doc4.xml · derivative · entry 3

DOSSETT JEFFREY · CIK 0001578147 · Chief Revenue Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,438

Underlying: Common Stock · 937 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

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

F4 · derivative.exercise_date: On March 23, 2022, the reporting person was granted 15,000 RSUs. One-sixteenth of these RSUs vested on December 23, 2023.

F4 · derivative.expiration_date: On March 23, 2022, the reporting person was granted 15,000 RSUs. One-sixteenth of these RSUs vested on December 23, 2023.

SEC source: 0001209191-23-059798 · doc4.xml · nonDerivative · entry 1

DOSSETT JEFFREY · CIK 0001578147 · Chief Revenue Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 45,601

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001209191-23-059181 · doc4.xml · nonDerivative · entry 4

MECKLAI HUSSEIN · CIK 0001908089 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 38,761

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: 0001209191-23-059181 · doc4.xml · nonDerivative · entry 3

MECKLAI HUSSEIN · CIK 0001908089 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 38,801

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 $88.295 to $89.10, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

SEC source: 0001209191-23-059174 · doc4.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: 249,448

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: 0001209191-23-059174 · doc4.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: 249,508

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").

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 $88.295 to $89.10, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

SEC source: 0001209191-23-059169 · doc4.xml · nonDerivative · entry 2

Baker Cary · CIK 0001705407 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 54,294

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").

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 $88.31 to $89.24, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

SEC source: 0001209191-23-059166 · doc4.xml · derivative · entry 5

DOSSETT JEFFREY · CIK 0001578147 · Chief Revenue Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 65,601

Underlying: Common Stock · 3,330 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: One-fourth of the shares subject to the option vested on June 11, 2019, and 1/48th of the shares subject to the option shall vest each month thereafter.

SEC source: 0001209191-23-059166 · doc4.xml · nonDerivative · entry 3

DOSSETT JEFFREY · CIK 0001578147 · Chief Revenue Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 44,664

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001209191-23-059166 · doc4.xml · nonDerivative · entry 2

DOSSETT JEFFREY · CIK 0001578147 · Chief Revenue Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 41,334

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 $88.4475 to $89.39, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

SEC source: 0001209191-23-059181 · doc4.xml · derivative · entry 6

MECKLAI HUSSEIN · CIK 0001908089 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 938

Underlying: Common Stock · 469 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

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

F5 · derivative.exercise_date: On June 29, 2020, the reporting person was granted 7,500 RSUs. One-sixteenth of these RSUs vested on December 15, 2023.

F5 · derivative.expiration_date: On June 29, 2020, the reporting person was granted 7,500 RSUs. One-sixteenth of these RSUs vested on December 15, 2023.

SEC source: 0001209191-23-059181 · doc4.xml · derivative · entry 5

MECKLAI HUSSEIN · CIK 0001908089 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,563

Underlying: Common Stock · 781 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

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

F4 · derivative.exercise_date: On June 15, 2020, the reporting person was granted 12,500 RSUs. One-sixteenth of these RSUs vested on December 15, 2023.

F4 · derivative.expiration_date: On June 15, 2020, the reporting person was granted 12,500 RSUs. One-sixteenth of these RSUs vested on December 15, 2023.

SEC source: 0001209191-23-059181 · doc4.xml · nonDerivative · entry 2

MECKLAI HUSSEIN · CIK 0001908089 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 39,256

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001209191-23-059181 · doc4.xml · nonDerivative · entry 1

MECKLAI HUSSEIN · CIK 0001908089 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 38,787

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001209191-23-059174 · doc4.xml · derivative · entry 5

DIORIO CHRIS PH.D. · CIK 0001677721 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,125

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.

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

F4 · 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 December 15, 2023.

F4 · 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 December 15, 2023.

SEC source: 0001209191-23-059174 · doc4.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: 250,064

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001209191-23-059169 · doc4.xml · derivative · entry 3

Baker Cary · CIK 0001705407 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,563

Underlying: Common Stock · 781 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

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

F4 · derivative.exercise_date: On June 15, 2020, the reporting person was granted 12,500 RSUs, one sixteenth of which vested on December 15, 2023.

F4 · derivative.expiration_date: On June 15, 2020, the reporting person was granted 12,500 RSUs, one sixteenth of which vested on December 15, 2023.

SEC source: 0001209191-23-059169 · doc4.xml · nonDerivative · entry 1

Baker Cary · CIK 0001705407 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 54,602

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001209191-23-059166 · doc4.xml · derivative · entry 4

DOSSETT JEFFREY · CIK 0001578147 · Chief Revenue Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,750

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.

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

F4 · derivative.exercise_date: On June 15, 2020, the reporting person was granted 30,000 RSUs. One-sixteenth of these RSUs vested on December 15, 2023.

F4 · derivative.expiration_date: On June 15, 2020, the reporting person was granted 30,000 RSUs. One-sixteenth of these RSUs vested on December 15, 2023.

SEC source: 0001209191-23-059166 · doc4.xml · nonDerivative · entry 1

DOSSETT JEFFREY · CIK 0001578147 · Chief Revenue Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 42,073

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001209191-23-058060 · doc4.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: 248,501

SEC source: 0001209191-23-056658 · doc4.xml · nonDerivative · entry 2

Baker Cary · CIK 0001705407 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 53,821

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 $82.8401 to $83.025, 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: 0001209191-23-056658 · doc4.xml · derivative · entry 3

Baker Cary · CIK 0001705407 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,750

Underlying: Common Stock · 3,750 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

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

F4 · derivative.exercise_date: On February 24, 2020, the reporting person was granted 60,000 RSUs, one sixteenth of which vested on November 24, 2023.

F4 · derivative.expiration_date: On February 24, 2020, the reporting person was granted 60,000 RSUs, one sixteenth of which vested on November 24, 2023.

SEC source: 0001209191-23-056658 · doc4.xml · nonDerivative · entry 1

Baker Cary · CIK 0001705407 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 55,289

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: 0001627436-23-000021 · primary_doc.xml · nonDerivative · entry 1

Sylebra Capital Ltd · CIK 0001627436 · 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: 4,197,352

F3 · price: This transaction was executed with multiple brokers during the day. The weighted-average price is reported above. The reporting persons hereby undertake to provide uponrequest to the SEC staff or the issuer full information regarding the number of shares and prices at which the transactions were effected.

F1 · ownership.nature: Sylebra Capital Limited (Sylebra HK) and Sylebra Capital LLC (Sylebra US) 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 HK, Sylebra US, 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 HK, Sylebra US,Sylebra Cayman and Gibson disclaim beneficial ownership of these securities, and this report shall not be deemed an admission that Sylebra HK, Sylebra US, Sylebra Caymanand Gibson are the beneficial owners of such securities, except to the extent of their pecuniary interest, if any, therein

SEC source: 0001627436-23-000020 · primary_doc.xml · nonDerivative · entry 1

Sylebra Capital Ltd · CIK 0001627436 · 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: 4,159,839

F3 · price: This transaction was executed with multiple brokers during the day. The weighted-average price is reported above. The reporting persons hereby undertake to provide uponrequest to the SEC staff or the issuer full information regarding the number of shares and prices at which the transactions were effected.

F1 · ownership.nature: Sylebra Capital Limited (Sylebra HK) and Sylebra Capital LLC (Sylebra US) 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 HK, Sylebra US, 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 HK, Sylebra US,Sylebra Cayman and Gibson disclaim beneficial ownership of these securities, and this report shall not be deemed an admission that Sylebra HK, Sylebra US, Sylebra Caymanand Gibson are the beneficial owners of such securities, except to the extent of their pecuniary interest, if any, therein.

SEC source: 0001627436-23-000018 · primary_doc.xml · nonDerivative · entry 1

Sylebra Capital Ltd · CIK 0001627436 · 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: 4,118,587

F3 · price: This transaction was executed with multiple brokers during the day. The weighted-average price is reported above. The reporting persons hereby undertake to provide uponrequest to the SEC staff or the issuer full information regarding the number of shares and prices at which the transactions were effected.

F1 · ownership.nature: Sylebra Capital Limited (Sylebra HK) and Sylebra Capital LLC (Sylebra US) 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 HK, Sylebra US, 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, MENLO MF, 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 HK, Sylebra US,Sylebra Cayman and Gibson disclaim beneficial ownership of these securities, and this report shall not be deemed an admission that Sylebra HK, Sylebra US, Sylebra Caymanand Gibson are the beneficial owners of such securities, except to the extent of their pecuniary interest, if any, therein.

SEC source: 0001627436-23-000019 · primary_doc.xml · nonDerivative · entry 1

Sylebra Capital Ltd · CIK 0001627436 · 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: 4,083,077

F3 · price: This transaction was executed with multiple brokers during the day. The weighted-average price is reported above. The reporting persons hereby undertake to provide uponrequest to the SEC staff or the issuer full information regarding the number of shares and prices at which the transactions were effected.

F1 · ownership.nature: Sylebra Capital Limited (Sylebra HK) and Sylebra Capital LLC (Sylebra US) 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 HK,Sylebra US, 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,MENLO MF, 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 HK, Sylebra US,Sylebra Cayman and Gibson disclaim beneficial ownership of these securities, and this report shall not be deemed an admission that Sylebra HK, Sylebra US, Sylebra Cayman and Gibson are the beneficial owners of such securities, except to the extent of their pecuniary interest, if any, therein.

SEC source: 0001627436-23-000016 · primary_doc.xml · nonDerivative · entry 1

Sylebra Capital Ltd · CIK 0001627436 · 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: 4,030,559

F3 · price: This transaction was executed with multiple brokers during the day. The weighted-average price is reported above. The reporting persons hereby undertake to provide upon request to the SEC staff or the issuer full information regarding the number of shares and prices at which the transactions were effected.

F1 · ownership.nature: Sylebra Capital Limited (Sylebra HK) and Sylebra Capital LLC (Sylebra US) 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 theinvestment 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 HK, Sylebra US, 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 HK, Sylebra US, Sylebra Cayman and Gibson disclaim beneficial ownership of these securities, and this report shall not be deemed an admission that Sylebra HK, Sylebra US, Sylebra Caymanand Gibson are the beneficial owners of such securities, except to the extent of their pecuniary interest, if any, therein.

SEC source: 0001627436-23-000015 · primary_doc.xml · nonDerivative · entry 1

Sylebra Capital Ltd · CIK 0001627436 · 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: 3,982,248

F3 · price: This transaction was executed with multiple brokers during the day. The weighted-average price is reported above. The reporting persons hereby undertake to provide uponrequest to the SEC staff or the issuer full information regarding the number of shares and prices at which the transactions were effected.

F1 · ownership.nature: Sylebra Capital Limited (Sylebra HK) and Sylebra Capital LLC (Sylebra US) are the investment sub-advisers to Sylebra Capital Partners Master Fund, Ltd. (SCP MF),SylebraCapital Parc Master Fund (PARC MF), Sylebra Capital Menlo Master Fund (MENLO MF), and other advisory clients. Sylebra Capital Management (Sylebra Cayman) is theinvestment 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 ofSylebra 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 HK, SylebraUS, 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 HK, Sylebra US,Sylebra Cayman and Gibson disclaim beneficial ownership of these securities, and this report shall not be deemed an admission that Sylebra HK, Sylebra US, Sylebra Caymanand Gibson are the beneficial owners of such securities, except to the extent of their pecuniary interest, if any, therein.

SEC source: 0001209191-23-053994 · doc4.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: 261,001

SEC source: 0001209191-23-053770 · doc4.xml · nonDerivative · entry 1

DOSSETT JEFFREY · CIK 0001578147 · Chief Revenue Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 40,198

F1 · kind: The sales reported by Mr. Dossett were effected pursuant to a Rule 10b5-1 trading plan effective on February 10, 2023.

SEC source: 0001209191-23-052889 · doc4.xml · nonDerivative · entry 2

MECKLAI HUSSEIN · CIK 0001908089 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 38,006

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 $52.06 to $52.70, 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: 0001209191-23-052888 · doc4.xml · nonDerivative · entry 2

DOSSETT JEFFREY · CIK 0001578147 · Chief Revenue Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 41,198

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 $52.06 to $52.64, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

SEC source: 0001209191-23-052887 · doc4.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: 304,001

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 $52.06 to $52.64, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

SEC source: 0001209191-23-052886 · doc4.xml · nonDerivative · entry 2

Baker Cary · CIK 0001705407 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 51,539

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 $52.23 to $52.30, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

SEC source: 0001209191-23-052889 · doc4.xml · derivative · entry 3

MECKLAI HUSSEIN · CIK 0001908089 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,563

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.

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

F4 · 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, 2023.

F4 · 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, 2023.

SEC source: 0001209191-23-052889 · doc4.xml · nonDerivative · entry 1

MECKLAI HUSSEIN · CIK 0001908089 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 38,442

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001209191-23-052888 · doc4.xml · derivative · entry 3

DOSSETT JEFFREY · CIK 0001578147 · Chief Revenue Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,500

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.

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

F4 · 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, 2023.

F4 · 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, 2023.

SEC source: 0001209191-23-052888 · doc4.xml · nonDerivative · entry 1

DOSSETT JEFFREY · CIK 0001578147 · Chief Revenue Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 41,696

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001209191-23-052887 · doc4.xml · derivative · entry 4

DIORIO CHRIS PH.D. · CIK 0001677721 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,750

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.

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

F4 · 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, 2023.

F4 · 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, 2023.

SEC source: 0001209191-23-052887 · doc4.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: 305,246

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.