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Chris Diorio owns 1.79% of Impinj

545,627 shares as of the October 12, 2026 filing, worth $95.7M at the latest close.

PI · $5.4B market cap · Founder-led
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Free.
The stake
1.79%
worth $95.7M at the latest close
Stake rank
#450
by dollar value of the stake
Last sale
398 days ago
Sep 16, 2025
Last buy
None
no purchases since 2016

Chris Diorio owns 1.79% of IMPINJ INC: 545,627 of 30,554,413 shares, worth about $95.7M at the 2026-10-16 close. The stake has moved from 5.84% in 2016 to 1.79% on 2026-10-12, across 83 sales and 0 purchases that moved it since 2016. The last trade that moved it was a planned sale of $1.7M on 2025-09-16.

How the stake is held

as of the Oct 12, 2026 filing
SHARES
OF THE STAKE
COMMON STOCK · stated Oct 12, 2026 · Form 4 ↗
HELD DIRECTLY
346,265
63.5%
HELD INDIRECTLY · by DFT L.L.C
199,362
36.5%
THE STAKE
545,627
1.79%