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sellWeak cluster of 3

Aaron Tachibana sold $6,390 of PSNL

CFO AND COO at Personalis, Inc.. 1,291 shares at an average of $4.95, traded May 16, 2025, filed May 20, 2025.

Warning score
37
Value
$6,390
1,291 shares
Holdings after
165,099
-1% from before
From 52-week low
+65%
low $3.00, close $4.95
From 52-week high
-25%
high $6.64, as of May 16, 2025

Score components

  • Role
    CFO
    +22
  • Trade size
    $6k at market
    0
  • Share of holdings sold
    Sold 0.8% of holdings
    0
  • Cluster
    3 insiders selling within 14 days
    +15

What happened after comparable sells

Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.

This signal so far: 1m +31.7%, 3m -8.7%, 6m +53.6%.

Price around the trade, and since

From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.

PSNLOct 12, 2026 · close 15.80
Since filing May 20, 2025: +218.5%SPY +33.4% · excess +185.1%

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™

Rows in this filing

Every transaction in Form 4 0001415889-25-013848, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
May 16, 2025SOpen-market sale
Common Stock
-1,291$4.95$6,390165,099May 20, 2025

Related signals

Other insiders at Personalis, Inc. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
43Moderate
PSNLsell 4
Personalis, Inc.
Richard Chen
President and CMO
$65k
3,998 shares
-2%
50Moderate
PSNLsell 4
Personalis, Inc.
Christopher M Hall
Chief Executive Officer
$121k
7,459 shares
-3%
36Weak
PSNLsell 4
Personalis, Inc.
Stephen Michael Moore
SVP and Chief Legal Officer
$34k
2,068 shares
-2%
44Moderate
PSNLsell 4
Personalis, Inc.
Aaron Tachibana
CFO AND COO
$48k
2,931 shares
-1%
28Weak
PSNLsell 210b5-1
Personalis, Inc.
Richard Chen
President and CMO
$1.5M
100,000 shares
-37%
40Moderate
PSNLsell 310b5-1
Personalis, Inc.
Christopher M Hall
Chief Executive Officer
$1.5M
100,000 shares
-30%
3Weak
PSNLsell 210b5-1
Personalis, Inc.
Aaron Tachibana
CFO AND COO
$70k
4,982 shares
-2%
33Weak
PSNLsell 210b5-1
Personalis, Inc.
Christopher M Hall
Chief Executive Officer
$1.3M
100,000 shares
-30%
20Weak
PSNLsell 210b5-1
Personalis, Inc.
Aaron Tachibana
CFO AND COO
$675k
51,251 shares
-20%
18Weak
PSNLsell 210b5-1
Personalis, Inc.
Aaron Tachibana
CFO AND COO
$480k
40,000 shares
-17%

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

Aaron Tachibana sold $6,390 of PSNL | InsiderTell