Transactions
12
Insider / Personalis, Inc.
Tachibana Aaron
CFO AND COO at Personalis, Inc.
- Company
- Personalis, Inc.
- Ticker
- PSNL
- First filing on record
- June 5, 2026
- Latest trade on record
- September 18, 2026
- SEC filings
- EDGAR ↗
Tachibana Aaron, CFO AND COO at Personalis, Inc., has disclosed 12 transactions in PSNL since June 5, 2026: 0 purchases (0 open-market buys) and 4 sales, worth about $2.0M at the reported prices. The latest was filed September 22, 2026, 4 days after the trade.
Open-market buys
0
Sales
4
Avg. disclosure lag
0.6d
Trading in charts
Trade timeline
When does this person trade, how big, and in which direction? Every trade in the last 12 months.
Bought (above the line)Sold (below the line)Other transaction
In the last 12 months Tachibana Aaron made no purchases and 4 sales worth $1.3M, plus 8 other transactions. Dot size is the dollar amount.
Portfolio mix
Which stocks does this person trade most? Tile size is dollars traded, all time on record.
Tachibana Aaron has traded 1 stock on record; the largest by dollars is PSNL.
Reporting lag
Does this person report on time? One bar per filing against the Form 4 deadline.
On timeLate
0 of 4 filings on record were reported after the Form 4 deadline (two business days, counted here as 4 calendar days).
What kind of transactions
Most Form 4 rows are pay arriving or tax being withheld, not a decision to buy or sell. Only code P is an open-market purchase and code S an open-market sale. What each code means: Form 4 transaction codes.
| Code | Meaning | Rows | Shares | Value |
|---|---|---|---|---|
| M | Option exercise or conversion | 8 | 192,466 | $776K |
| S | Open-market sale | 4 | 99,164 | $1.3M |
| Year | Rows | Bought | Sold |
|---|---|---|---|
| 2026 | 12 | 0 | 4 · $1.3M |
Transactions
| Security | Side | Trade date | Disclosed | Lag | Shares | Price | Value | Flags | Source | Share |
|---|---|---|---|---|---|---|---|---|---|---|
| PSNL | Sell S | September 18, 2026 | September 22, 2026 | 4d | 2,931 | $16 | $48K | Form 4 ↗ | ||
| PSNL | Option / conversion M | June 29, 2026 | June 29, 2026 | 0d | 4,982 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| PSNL | Sell S | June 29, 2026 | June 29, 2026 | 0d | 4,982 | $14 | $70K | 10b5-1 plan | Form 4 ↗ | |
| PSNL | Option / conversion M | June 29, 2026 | June 29, 2026 | 0d | 4,982 | $5 | $27K | 10b5-1 plan | Form 4 ↗ | |
| PSNL | Option / conversion M | June 26, 2026 | June 26, 2026 | 0d | 22,419 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| PSNL | Option / conversion M | June 26, 2026 | June 26, 2026 | 0d | 28,832 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| PSNL | Sell S | June 26, 2026 | June 26, 2026 | 0d | 51,251 | $13 | $675K | 10b5-1 plan | Form 4 ↗ | |
| PSNL | Option / conversion M | June 26, 2026 | June 26, 2026 | 0d | 22,419 | $5 | $119K | 10b5-1 plan | Form 4 ↗ | |
| PSNL | Option / conversion M | June 26, 2026 | June 26, 2026 | 0d | 28,832 | $9 | $264K | 10b5-1 plan | Form 4 ↗ | |
| PSNL | Option / conversion M | June 4, 2026 | June 5, 2026 | 1d | 40,000 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| PSNL | Sell S | June 4, 2026 | June 5, 2026 | 1d | 40,000 | $12 | $480K | 10b5-1 plan | Form 4 ↗ | |
| PSNL | Option / conversion M | June 4, 2026 | June 5, 2026 | 1d | 40,000 | $9 | $366K | 10b5-1 plan | Form 4 ↗ |
Filings
| Filed | Form | Accession | Rows | Status | Source |
|---|---|---|---|---|---|
| September 22, 2026 | Form 4 | 0001401786-26-000009 | 1 | published | EDGAR ↗ |
| June 29, 2026 | Form 4 | 0001401786-26-000007 | 3 | published | EDGAR ↗ |
| June 26, 2026 | Form 4 | 0001401786-26-000006 | 5 | published | EDGAR ↗ |
| June 5, 2026 | Form 4 | 0001401786-26-000005 | 3 | published | EDGAR ↗ |
Other insiders at Personalis, Inc.
- Tempus AI, Inc. Insider 12 rows
- Hall Christopher M Chief Executive Officer 8 rows
- Chen Richard President and CMO 4 rows
- Moore Stephen Michael SVP and Chief Legal Officer 1 row
Everyone on file, with contracts and lobbying under the company's name: Personalis, Inc..
Guides for this page
- What is SEC Form 4? Who files: officers, directors and owners of more than 10% of a class of the company's shares.
- Form 4 transaction codes P = purchase. S = sale. These are the two market trades.
- Insider buying vs insider selling Selling outweighs buying by a wide margin in normal times.
- Rule 10b5-1 trading plans The plan must be set up when the insider has no important non-public information.
- Options and derivatives on Form 4 Table I = shares. Table II = options and other derivatives.
Sources and method
| Source | Filings | Rows | First filed | Newest filed | Read the originals |
|---|---|---|---|---|---|
| SEC EDGAR, Form 4 | 4 | 12 | June 5, 2026 | September 22, 2026 | Form 4 list on EDGAR |
Site built October 27, 2026. Every row in the tables above links to its own filing. To quote a figure, use the Cite button at the top of the page; see how to cite and reuse.
Every row comes from the reporting owner's Form 4 as filed with the SEC (EDGAR ownership XML), read daily. "Value" is shares × the reported price; code P is an open-market purchase, S a sale, M an option exercise, A a grant. The lag is the filing date minus the trade date; Form 4 is due within two business days. Amendments (4/A) are not merged. Details on the methodology page; report an error on corrections.
Not investment advice. Figures are public disclosures shown as filed; they may lag the trade and may be amended later. No recommendation is made or implied.