Key facts
- This page summarizes Miron Washington's Form 4 filing for IMPINJ INC (PI).
- 3 reported transactions and 2 derivative rows are listed below.
- Accepted by SEC: 29 May 2026, 17:34.
Miron Washington - 28 May 2026 Form 4 Insider Report for IMPINJ INC (PI)
- Reporting relationship
- Director
- Issuer ticker
- PI
- Reported as of
- 28 May 2026
- Net transaction value
- $0
- SEC form
- 4
- Accepted by SEC
- 29 May 2026, 17:34:04 UTC
- Prior SEC filing
- 07 Nov 2025
- Source filing
- View source filing
- Reporting owner signature
- /s/ Yukio Morikubo, Attorney in fact for Miron Washington
Source evidence
Original filing metadata and source links for verification.
4 source fields
Reporting owner
1 detail
Key filing fact
Miron Washington filed Form 4 for IMPINJ INC (PI) on 29 May 2026.
Change
- Previous filing in this sequence was filed on 07 Nov 2025.
- Current net transaction value: $0.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Filed on Form 4
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0001969449
Primary reporting owner
WASHINGTON MIRON
- Relationship
- Director
- Address
- C/O IMPINJ, INC., 400 FAIRVIEW AVENUE NORTH, SUITE 1200, SEATTLE
- Signature
- /s/ Yukio Morikubo, Attorney in fact for Miron Washington
- Signature date
- 29 May 2026
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
PI
transaction
Common Stock
Options Exercise
- Transaction value
- Shares
- +3,114
- Change %
- +153%
- Price
- $0.000000*
- Shares after
- 5,154
- Date
- 28 May 2026
- Ownership
- Direct
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
PI
transaction
Derivative
Restricted Stock Units
Options Exercise
- Transaction value
- Shares
- -3,114
- Change %
- -100%
- Price
- $0.000000*
- Shares after
- 0
- Date
- 28 May 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 3,114
- Exercise price
- $0.000000
- Footnotes
- F1, F2
PI
transaction
Derivative
Restricted Stock Units
Award
- Transaction value
- Shares
- +1,896
- Change %
- Price
- $0.000000*
- Shares after
- 1,896
- Date
- 28 May 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 1,896
- Exercise price
- $0.000000
- Footnotes
- F1, F3
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 3 footnotes
Footnote F1
Each restricted stock unit ("RSU") represents a contingent right to receive one share of Impinj common stock.
Footnote F2
On June 5, 2024, the reporting person was granted 3,114 RSUs. These RSUs fully vested on May 28, 2026.
Footnote F3
The restricted stock units will fully vest on May 28, 2027.