InsiderCFO AND COO
Aaron Tachibana Insider Trading Activity
Every SEC Form 4 transaction reported by Aaron Tachibana, sourced directly from SEC EDGAR and updated as new filings are accepted.
By Trabud · Insider-trading data from SEC EDGAR
Latest filing:
Compiled automatically from SEC EDGAR Form 4 filings and refreshed daily. Figures count purchases (code P) and sales (code S) only — not grants, option exercises, or gifts. How this page is built. Not investment advice.
Quick Answer
Is Aaron Tachibana buying or selling?
Aaron Tachibana reported 0 open-market buys ($0) and 52 sells ($4.3M) across 52 Form 4 filings at 2 companies — a net selling position of $4.3M.
Source: SEC EDGAR Form 4
Key Statistics (as of Sep 22, 2026)
Total Form 4 filings
52
SEC EDGAR
Companies
2
Buys (0)
$0
Sells (52)
$4.3M
Insider sentiment
Net sellingNet insider flow of $4.3M in net selling, filed between Feb 22, 2018 – Sep 22, 2026.
Companies Aaron Tachibana files for
Recent Aaron Tachibana transactions
| Date | Ticker | Role | Type | Shares | Value | Filing |
|---|---|---|---|---|---|---|
| Sep 22, 2026 | PSNL | CFO AND COO | Sale | 2.9K | $47.5K | SEC ↗ |
| Jun 29, 2026 | PSNL | CFO AND COO | Sale | 5.0K | $69.7K | SEC ↗ |
| Jun 26, 2026 | PSNL | CFO AND COO | Sale | 51.3K | $675.5K | SEC ↗ |
| Jun 6, 2026 | PSNL | CFO AND COO | Sale | 40.0K | $480.4K | SEC ↗ |
| May 30, 2026 | PSNL | CFO AND COO | Sale | 38.8K | $449.3K | SEC ↗ |
| Jan 23, 2026 | PSNL | CFO AND COO | Sale | 1.2K | $13.8K | SEC ↗ |
| Nov 28, 2025 | PSNL | CFO AND COO | Sale | 103.7K | $1.1M | SEC ↗ |
| Jul 30, 2025 | PSNL | CFO AND COO | Sale | 641 | $4.2K | SEC ↗ |
| May 20, 2025 | PSNL | CFO AND COO | Sale | 1.3K | $6.4K | SEC ↗ |
| Jan 30, 2025 | PSNL | CFO AND COO | Sale | 708 | $4.1K | SEC ↗ |
| Dec 18, 2024 | PSNL | CFO AND COO | Sale | 6.9K | $26.2K | SEC ↗ |
| Nov 20, 2024 | PSNL | CFO AND COO | Sale | 1.3K | $5.0K | SEC ↗ |
| Aug 1, 2024 | PSNL | CFO AND COO | Sale | 742 | $2.2K | SEC ↗ |
| Jun 20, 2024 | PSNL | CFO AND COO | Sale | 7.2K | $9.3K | SEC ↗ |
| May 22, 2024 | PSNL | CFO AND COO | Sale | 1.3K | $1.8K | SEC ↗ |
| Jan 31, 2024 | PSNL | CFO AND COO | Sale | 716 | $980.92 | SEC ↗ |
| Dec 19, 2023 | PSNL | CFO and COO | Sale | 6.7K | $9.9K | SEC ↗ |
| Nov 20, 2023 | PSNL | CFO and COO | Sale | 1.3K | $1.4K | SEC ↗ |
| Aug 2, 2023 | PSNL | CFO and COO | Sale | 662 | $1.5K | SEC ↗ |
| Jun 21, 2023 | PSNL | CFO and COO | Sale | 6.9K | $14.3K | SEC ↗ |
| May 19, 2023 | PSNL | CFO and COO | Sale | 1.4K | $2.8K | SEC ↗ |
| Mar 21, 2023 | PSNL | CFO and COO | Sale | 3.9K | $11.2K | SEC ↗ |
| Feb 2, 2023 | PSNL | Chief Financial Officer | Sale | 767 | $1.7K | SEC ↗ |
| Dec 22, 2022 | PSNL | Chief Financial Officer | Sale | 3.8K | $7.4K | SEC ↗ |
| Dec 19, 2022 | PSNL | Chief Financial Officer | Sale | 7.2K | $17.9K | SEC ↗ |
Showing the 25 most recent filings of 52. Screen every filing.
Aaron Tachibana insider trading FAQ
Is Aaron Tachibana buying or selling?
Across 52 SEC Form 4 filings, Aaron Tachibana reported 0 open-market purchases totaling $0 and 52 sales totaling $4.3M — a net selling position of $4.3M.
Which companies does Aaron Tachibana file Form 4s for?
Aaron Tachibana has reported insider transactions at 2 companies, most often Personalis, Inc. (PSNL), Lumentum Holdings Inc. (LITE).
How far back does Aaron Tachibana's filing history go?
Trabud holds Aaron Tachibana's SEC Form 4 filings from Feb 22, 2018 – Sep 22, 2026, sourced directly from SEC EDGAR.
Where does Trabud get Aaron Tachibana's insider trading data?
Directly from SEC EDGAR Form 4 filings. Every transaction on this page is a real filing accepted by the SEC, updated as new filings arrive.
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