PI

SEC source: 0001209191-23-019649 · doc4.xml · derivative · entry 4

Baker Cary · CIK 0001705407 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,907

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.

F4 · derivative.exercise_price: Each restricted stock unit 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 12,500 restricted stock units ("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 March 15, 2023.

F5 · derivative.expiration_date: On June 15, 2020, the reporting person was granted 12,500 restricted stock units ("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 March 15, 2023.

SEC source: 0001209191-23-019649 · doc4.xml · nonDerivative · entry 1

Baker Cary · CIK 0001705407 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 43,838

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: 0001209191-23-014901 · doc4.xml · nonDerivative · entry 3

DOSSETT JEFFREY · CIK 0001578147 · Chief Revenue Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 48,283

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: 0001209191-23-014901 · doc4.xml · nonDerivative · entry 2

DOSSETT JEFFREY · CIK 0001578147 · Chief Revenue Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 49,483

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

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 $132.69 to $133.68, 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: 0001209191-23-014901 · doc4.xml · nonDerivative · entry 1

DOSSETT JEFFREY · CIK 0001578147 · Chief Revenue Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 50,683

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

F2 · price: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $131.67 to $132.63, 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: 0001209191-23-014196 · doc4.xml · derivative · entry 3

MECKLAI HUSSEIN · CIK 0001908089 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 48,384

Underlying: Common Stock · 6,000 shares

Expires 2028-12-10

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

F2 · derivative.exercise_date: One-fourth of the shares subject to the option vested on December 5, 2019, and 1/48th of the shares subject to the option shall vest each month thereafter, subject to the Reporting Person's continued service to the Issuer through such date.

SEC source: 0001209191-23-014196 · doc4.xml · nonDerivative · entry 2

MECKLAI HUSSEIN · CIK 0001908089 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 27,425

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

SEC source: 0001209191-23-014196 · doc4.xml · nonDerivative · entry 1

MECKLAI HUSSEIN · CIK 0001908089 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 33,425

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: 0001209191-23-013519 · doc4.xml · nonDerivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 281,310

F3 · 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 PSUs.

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 $128.03 to $128.85 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: 0001209191-23-013519 · doc4.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 283,196

F3 · 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 PSUs.

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 $127.025 to $128.02 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: 0001209191-23-013514 · doc4.xml · nonDerivative · entry 4

DOSSETT JEFFREY · CIK 0001578147 · Chief Revenue Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 51,783

F3 · 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 PSUs.

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 $128.06 to $128.885, 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: 0001209191-23-013514 · doc4.xml · nonDerivative · entry 3

DOSSETT JEFFREY · CIK 0001578147 · Chief Revenue Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 52,853

F3 · 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 PSUs.

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 $127.025 to $127.97, 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: 0001209191-23-013505 · doc4.xml · nonDerivative · entry 5

Baker Cary · CIK 0001705407 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 43,057

F3 · 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 PSUs or restricted stock units ("RSUs").

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 $128.03 to $128.80, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

SEC source: 0001209191-23-013505 · doc4.xml · nonDerivative · entry 4

Baker Cary · CIK 0001705407 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 44,027

F3 · 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 PSUs or restricted stock units ("RSUs").

F4 · price: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $127.025 to $127.97, 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: 0001209191-23-013508 · doc4.xml · nonDerivative · entry 4

MECKLAI HUSSEIN · CIK 0001908089 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 27,425

F3 · 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 PSUs.

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 $128.135 to $128.48, 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: 0001209191-23-013508 · doc4.xml · nonDerivative · entry 3

MECKLAI HUSSEIN · CIK 0001908089 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 27,762

F3 · 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 PSUs.

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 $127.09 to $128.055, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

SEC source: 0001209191-23-013505 · doc4.xml · derivative · entry 6

Baker Cary · CIK 0001705407 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,000

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.

F6 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Impinj common stock.

F7 · derivative.exercise_date: On February 24, 2020, the reporting person was granted 60,000 restricted stock units ("RSUs"), one sixteenth of which vested on February 24, 2023.

F7 · derivative.expiration_date: On February 24, 2020, the reporting person was granted 60,000 restricted stock units ("RSUs"), one sixteenth of which vested on February 24, 2023.

SEC source: 0001209191-23-013505 · doc4.xml · nonDerivative · entry 3

Baker Cary · CIK 0001705407 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 48,259

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: 0001209191-23-012262 · doc4.xml · nonDerivative · entry 1

SANGHI STEVE · CIK 0001181928 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Sanghi Family Limited Partnership

Disclosed balance after: 16,700

SEC source: 0001209191-23-013519 · doc4.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 293,002

F2 · shares: On March 23, 2022, the Reporting Person was granted PSUs. The PSUs vested upon the Reporting Person's satisfaction of certain performance criteria. On February 23, 2023, the Issuer's Board of Directors determined the level at which the corporate performance goals were attained, resulting in the vesting of 5,218 shares of Common Stock underlying the PSUs.

SEC source: 0001209191-23-013519 · doc4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 287,784

F1 · shares: On April 12, 2021, the Reporting Person was granted performance restricted stock units (PSUs). The PSUs vested upon the Reporting Person's satisfaction of certain performance criteria. On February 23, 2023, the Issuer's Board of Directors determined the level at which the corporate performance goals were attained, resulting in the vesting of 25,000 shares of Common Stock underlying the PSUs.

SEC source: 0001209191-23-013514 · doc4.xml · nonDerivative · entry 2

DOSSETT JEFFREY · CIK 0001578147 · Chief Revenue Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 56,926

F2 · shares: On March 23, 2022, the Reporting Person was granted PSUs. The PSUs vested upon the Reporting Person's satisfaction of certain performance criteria. On February 23, 2023, the Issuer's Board of Directors determined the level at which the corporate performance goals were attained, resulting in the vesting of 3,287 shares of Common Stock underlying the PSUs.

SEC source: 0001209191-23-013514 · doc4.xml · nonDerivative · entry 1

DOSSETT JEFFREY · CIK 0001578147 · Chief Revenue Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 53,639

F1 · shares: On April 12, 2021, the Reporting Person was granted performance restricted stock units (PSUs). The PSUs vested upon the Reporting Person's satisfaction of certain performance criteria. On February 23, 2023, the Issuer's Board of Directors determined the level at which the corporate performance goals were attained, resulting in the vesting of 10,000 shares of Common Stock underlying the PSUs.

SEC source: 0001209191-23-013505 · doc4.xml · nonDerivative · entry 2

Baker Cary · CIK 0001705407 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 44,509

F2 · shares: On March 23, 2022, the Reporting Person was granted PSUs. The PSUs vested upon the Reporting Person's satisfaction of certain performance criteria. On February 23, 2023, the Issuer's Board of Directors determined the level at which the corporate performance goals were attained, resulting in the vesting of 2,442 shares of Common Stock underlying the PSUs.

SEC source: 0001209191-23-013505 · doc4.xml · nonDerivative · entry 1

Baker Cary · CIK 0001705407 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 42,067

F1 · shares: On April 12, 2021, the Reporting Person was granted performance restricted stock units (PSUs). The PSUs vested upon the Reporting Person's satisfaction of certain performance criteria. On February 23, 2023, the Issuer's Board of Directors determined the level at which the corporate performance goals were attained, resulting in the vesting of 7,500 shares of Common Stock underlying the PSUs.

SEC source: 0001209191-23-013508 · doc4.xml · nonDerivative · entry 2

MECKLAI HUSSEIN · CIK 0001908089 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 32,226

F2 · shares: On March 23, 2022, the Reporting Person was granted PSUs. The PSUs vested upon the Reporting Person's satisfaction of certain performance criteria. On February 23, 2023, the Issuer's Board of Directors determined the level at which the corporate performance goals were attained, resulting in the vesting of 3,053 shares of Common Stock underlying the PSUs.

SEC source: 0001209191-23-013508 · doc4.xml · nonDerivative · entry 1

MECKLAI HUSSEIN · CIK 0001908089 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,173

F1 · shares: On April 12, 2021, the Reporting Person was granted performance restricted stock units (PSUs). The PSUs vested upon the Reporting Person's satisfaction of certain performance criteria. On February 23, 2023, the Issuer's Board of Directors determined the level at which the corporate performance goals were attained, resulting in the vesting of 8,750 shares of Common Stock underlying the PSUs.

SEC source: 0001209191-23-011915 · doc4.xml · nonDerivative · entry 8

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 262,784

F1 · kind: The sales reported by Dr. Diorio were effected pursuant to a Rule 10b5-1 trading plan adopted on November 8, 2022.

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 $125.055 to $125.72, 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: 0001209191-23-011915 · doc4.xml · nonDerivative · entry 7

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 262,885

F1 · kind: The sales reported by Dr. Diorio were effected pursuant to a Rule 10b5-1 trading plan adopted on November 8, 2022.

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 $124.00 to $124.92, 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: 0001209191-23-011915 · doc4.xml · nonDerivative · entry 6

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 263,431

F1 · kind: The sales reported by Dr. Diorio were effected pursuant to a Rule 10b5-1 trading plan adopted on November 8, 2022.

F7 · price: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $122.98 to $123.95, 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: 0001209191-23-011915 · doc4.xml · nonDerivative · entry 5

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 265,872

F1 · kind: The sales reported by Dr. Diorio were effected pursuant to a Rule 10b5-1 trading plan adopted on November 8, 2022.

F6 · price: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $121.97 to $122.95, 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: 0001209191-23-011922 · doc4.xml · nonDerivative · entry 1

SESSLER GREGORY · CIK 0001285810 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 24,728

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 $125.00 to $125.045, 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: 0001209191-23-011915 · doc4.xml · nonDerivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 267,784

F1 · kind: The sales reported by Dr. Diorio were effected pursuant to a Rule 10b5-1 trading plan adopted on November 8, 2022.

F5 · price: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $127.30 to $127.98, 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: 0001209191-23-011915 · doc4.xml · nonDerivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 268,284

F1 · kind: The sales reported by Dr. Diorio were effected pursuant to a Rule 10b5-1 trading plan adopted on November 8, 2022.

F4 · price: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $125.61 to $126.37, 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: 0001209191-23-011915 · doc4.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 268,784

F1 · kind: The sales reported by Dr. Diorio were effected pursuant to a Rule 10b5-1 trading plan adopted on November 8, 2022.

F3 · price: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $124.51 to $125.19, 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: 0001209191-23-011915 · doc4.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 270,084

F1 · kind: The sales reported by Dr. Diorio were effected pursuant to a Rule 10b5-1 trading plan adopted on November 8, 2022.

F2 · price: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $123.50 to $124.45, 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: 0001209191-23-011223 · doc4.xml · derivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,000

Underlying: Common Stock · 22,000 shares

Expires not disclosed

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

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

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

SEC source: 0001627436-23-000001 · primary_doc.xml · nonDerivative · entry 3

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: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 2,768,085

F1 · ownership.nature: Sylebra Capital Limited (Sylebra HK) is the investment sub-adviser to Sylebra Capital Partners Master Fund, Ltd. (SCPMF), 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. Daniel Gibson (Mr. Gibson) owns more than 99% of the shares of Sylebra Cayman. In such capacities, Sylebra HK, Sylebra Cayman and Mr. 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. Mr. Gibson is a member of the board of directors of the Issuer. Sylebra HK, Sylebra Cayman and Mr. Gibson disclaim beneficial ownership of these securities, and this report shall not be deemed an admission that Sylebra HK, Sylebra Cayman and Mr. Gibson are the beneficial owners of such securities, except to the extent of their pecuniary interest, if any, therein.

SEC source: 0001209191-23-009406 · doc4.xml · nonDerivative · entry 15

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 272,784

F1 · kind: The sales reported by Dr. Diorio were effected pursuant to a Rule 10b5-1 trading plan adopted on November 8, 2022.

F16 · 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 $129.63 to $130.32, 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: 0001209191-23-009406 · doc4.xml · nonDerivative · entry 14

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 273,084

F1 · kind: The sales reported by Dr. Diorio were effected pursuant to a Rule 10b5-1 trading plan adopted on November 8, 2022.

F15 · 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 $128.49 to $129.47, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

SEC source: 0001209191-23-009406 · doc4.xml · nonDerivative · entry 13

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 273,544

F1 · kind: The sales reported by Dr. Diorio were effected pursuant to a Rule 10b5-1 trading plan adopted on November 8, 2022.

F14 · 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 $127.39 to $128.36, 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: 0001209191-23-009406 · doc4.xml · nonDerivative · entry 12

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 274,046

F1 · kind: The sales reported by Dr. Diorio were effected pursuant to a Rule 10b5-1 trading plan adopted on November 8, 2022.

F13 · 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 $126.28 to $127.10, 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: 0001209191-23-009406 · doc4.xml · nonDerivative · entry 11

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 274,318

F1 · kind: The sales reported by Dr. Diorio were effected pursuant to a Rule 10b5-1 trading plan adopted on November 8, 2022.

F12 · 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 $125.28 to $126.21, 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: 0001209191-23-009406 · doc4.xml · nonDerivative · entry 10

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 275,242

F1 · kind: The sales reported by Dr. Diorio were effected pursuant to a Rule 10b5-1 trading plan adopted on November 8, 2022.

F11 · 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 $124.28 to $125.26, 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: 0001209191-23-009406 · doc4.xml · nonDerivative · entry 9

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 276,543

F1 · kind: The sales reported by Dr. Diorio were effected pursuant to a Rule 10b5-1 trading plan adopted on November 8, 2022.

F10 · 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 $123.26 to $124.25, 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: 0001209191-23-009801 · doc4.xml · derivative · entry 3

MECKLAI HUSSEIN · CIK 0001908089 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,459

Underlying: Common Stock · 1,041 shares

Expires 2029-07-31

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

F2 · derivative.exercise_date: One-fourth of the shares subject to the option vested July 31, 2020, and 1/48th of the shares subject to the option shall vest each month thereafter, subject to the Reporting Person's continued service to the Issuer through such date.

SEC source: 0001209191-23-009801 · doc4.xml · nonDerivative · entry 2

MECKLAI HUSSEIN · CIK 0001908089 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,423

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

SEC source: 0001209191-23-009801 · doc4.xml · nonDerivative · entry 1

MECKLAI HUSSEIN · CIK 0001908089 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 21,464

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: 0001209191-23-009406 · doc4.xml · nonDerivative · entry 8

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 277,784

F1 · kind: The sales reported by Dr. Diorio were effected pursuant to a Rule 10b5-1 trading plan adopted on November 8, 2022.

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 $128.06 to $128.11, 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: 0001209191-23-009406 · doc4.xml · nonDerivative · entry 7

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 278,084

F1 · kind: The sales reported by Dr. Diorio were effected pursuant to a Rule 10b5-1 trading plan adopted on November 8, 2022.

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 $127.02 to $128.01, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.