Chris Ph.d. Diorio - 22 Feb 2024 Form 4 Insider Report for IMPINJ INC (PI)

Footnote F1

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 21, 2024, 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.

Footnote F2

The amount of securities beneficially owned includes 427 shares acquired on February 20, 2024 under the Impinj, Inc. 2016 Employee Stock Purchase Plan, in a transaction exempt under Rule 16b-3(c) that is being voluntarily reported by the reporting person on this Form 4.

Footnote F3

On March 23, 2022, 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 21, 2024, the Issuer's Board of Directors determined the level at which the corporate performance goals were attained, resulting in the vesting of 16,185 shares of Common Stock underlying the PSUs.

Footnote F4

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 $100.23 to $101.16, 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.

Footnote F5

These shares were sold to cover tax withholding obligations in connection with the vesting of restricted stock units ("RSUs").

Footnote F6

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 $101.31 to $102.30, 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.

Footnote F7

These shares were sold to cover tax withholding obligations in connection with the vesting of restricted stock units ("RSUs").

Footnote F8

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 $102.33 to $102.50, 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.

Footnote F9

The sales reported by Dr. Diorio were effected pursuant to a Rule 10b5-1 trading plan effective on November 6, 2023.

Footnote F10

The option became fully vested on August 23, 2020.