PITechnologyMid-Cap
IMPINJ INC Insider Trading Activity
Every SEC Form 4 insider transaction reported for IMPINJ INC (PI), sourced directly from SEC EDGAR and updated as new filings are accepted.
By Trabud Research Team · SEC Form 4 & insider trading data analysts
Last updated:
Quick Answer
Are PI insiders buying or selling?
IMPINJ INC insiders reported 30 open-market buys ($146.1M) and 360 sells ($891.3M) across 390 Form 4 filings — a net selling position of $745.2M.
Source: SEC EDGAR Form 4
Key Statistics (as of Aug 12, 2026)
Total Form 4 filings
390
SEC EDGAR
Insider filers
17
Insider buys (30)
$146.1M
Insider sells (360)
$891.3M
Insider sentiment
Net sellingNet insider flow of $745.2M in net selling.
Recent PI insider transactions
| Date | Insider | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Aug 12, 2026 | Cary Baker | CHIEF FINANCIAL OFFICER | Sale | 1.4K | $185.00 | $264.4K |
| Jun 10, 2026 | SYLEBRA CAPITAL LLC | Director | Sale | 64.6K | $128.47 | $8.3M |
| Jun 10, 2026 | SYLEBRA CAPITAL LLC | Director | Sale | 57.6K | $128.61 | $7.4M |
| Jun 9, 2026 | SYLEBRA CAPITAL LLC | Director | Sale | 47.5K | $124.06 | $5.9M |
| Jun 8, 2026 | SYLEBRA CAPITAL LLC | Director | Sale | 33.4K | $136.84 | $4.6M |
| Jun 4, 2026 | SYLEBRA CAPITAL LLC | Director | Sale | 45.0K | $141.87 | $6.4M |
| Jun 2, 2026 | SYLEBRA CAPITAL LLC | Director | Sale | 55.7K | $149.94 | $8.3M |
| May 12, 2026 | SYLEBRA CAPITAL LLC | Director | Sale | 73.8K | $153.21 | $11.3M |
| May 12, 2026 | SYLEBRA CAPITAL LLC | Director | Purchase | 22.0K | $154.33 | $3.4M |
| May 11, 2026 | SYLEBRA CAPITAL LLC | Director | Sale | 36.2K | $152.73 | $5.5M |
| May 11, 2026 | SYLEBRA CAPITAL LLC | Director | Sale | 36.2K | $152.73 | $5.5M |
| Dec 16, 2025 | SYLEBRA CAPITAL LLC | Other | Sale | 280.5K | $150.54 | $42.2M |
| Dec 11, 2025 | SYLEBRA CAPITAL LLC | Other | Sale | 87.1K | $155.64 | $13.6M |
| Dec 6, 2025 | SYLEBRA CAPITAL LLC | Other | Sale | 45.8K | $167.25 | $7.7M |
| Dec 4, 2025 | SYLEBRA CAPITAL LLC | Other | Sale | 72.9K | $167.71 | $12.2M |
| Dec 2, 2025 | SYLEBRA CAPITAL LLC | Other | Sale | 56.9K | $172.12 | $9.8M |
| Nov 27, 2025 | SYLEBRA CAPITAL LLC | Other | Sale | 78.1K | $164.33 | $12.8M |
| Nov 25, 2025 | SYLEBRA CAPITAL LLC | Other | Sale | 11.1K | $155.99 | $1.7M |
| Nov 15, 2025 | SYLEBRA CAPITAL LLC | Other | Sale | 3.8K | $156.30 | $589.6K |
| Nov 14, 2025 | SYLEBRA CAPITAL LLC | Other | Sale | 30.0K | $155.63 | $4.7M |
| Nov 13, 2025 | SYLEBRA CAPITAL LLC | Other | Sale | 6.2K | $162.16 | $1.0M |
| Nov 11, 2025 | SYLEBRA CAPITAL LLC | Other | Sale | 23.2K | $171.95 | $4.0M |
| Nov 7, 2025 | Miron Washington | Director | Sale | 342 | $158.94 | $54.4K |
| Nov 6, 2025 | SYLEBRA CAPITAL LLC | Other | Sale | 1.5K | $202.01 | $305.6K |
| Sep 16, 2025 | Chris Ph.D. Diorio | CHIEF EXECUTIVE OFFICER | Sale | 9.1K | $184.49 | $1.7M |
Showing the 25 most recent of 390 Form 4 filings for IMPINJ INC.
Most active PI insiders
- Chris Ph.D. Diorio90 filings
- Jeffrey Dossett83 filings
- Cary Baker61 filings
- Hussein Mecklai47 filings
- SYLEBRA CAPITAL LLC30 filings
Ask anything about PI insider activity
Use Trabud's AI agent to query IMPINJ INC's Form 4 history in plain English — "Show me PI CEO purchases this year" or compare it against any other ticker.
Open the AI agentPI insider trading FAQ
Are IMPINJ INC insiders buying or selling?
Across 390 SEC Form 4 filings, IMPINJ INC (PI) insiders reported 30 open-market purchases totaling $146.1M and 360 sales totaling $891.3M. That is a net selling position of $745.2M.
How many insiders trade PI stock?
17 distinct insider filers — officers, directors, 10%+ owners, and investment groups filing jointly — have reported Form 4 transactions for IMPINJ INC. The most recent filing was accepted on Aug 12, 2026.
Where does Trabud get PI insider trading data?
All PI insider trading data comes directly from official SEC EDGAR Form 4 filings, which corporate insiders must submit within two business days of a transaction under Section 16(a) of the Securities Exchange Act of 1934.
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