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sellWeak cluster of 410b5-1 plan

Jeffrey W Dunn sold $369k of SIBN

director at SI-BONE, Inc.. 20,000 shares at an average of $18.46, traded Aug 3, 2026, filed Aug 5, 2026.

Warning score
30
Value
$369k
20,000 shares
Holdings after
16,057
-55% from before
From 52-week low
+59%
low $11.61, close $18.45
From 52-week high
-14%
high $21.40, as of Aug 3, 2026

Score components

  • Role
    Director
    +15
  • Trade size
    $369k at market
    +15
  • Share of holdings sold
    Sold 55% of holdings
    +20
  • Cluster
    4 insiders selling within 14 days
    +15
  • Exercise and sell
    Shares came from an option exercise in the same filing
    -15
  • 10b5-1 plan
    Pre-scheduled under a 10b5-1 plan
    -20

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.

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.

SIBNOct 12, 2026 · close 20.10
Since filing Aug 5, 2026: +11.4%SPY +1.3% · excess +10.1%

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 0001035986-26-000005, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Aug 3, 2026MOption exercise
Common Stock
+20,000$4.68$94k36,057Aug 5, 2026
Aug 3, 2026SOpen-market sale
Common Stock10b5-1
-20,000$18.46$369k16,057Aug 5, 2026
Aug 3, 2026MOption exercise
Stock Option (Right to Buy)derivative
-20,000$0.00$0106,260Aug 5, 2026

Related signals

Other insiders at SI-BONE, Inc. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
20Weak
SIBNsell 310b5-1
SI-BONE, Inc.
Anshul Maheshwari
Chief Op & Financial Officer
$94k
5,049 shares
-2%
37Weak
SIBNsell 3
SI-BONE, Inc.
Michael A. Pisetsky
SVP, Ops & Adm/Chief Legal Ofr
$57k
3,133 shares
-1%
30Weak
SIBNsell 310b5-1
SI-BONE, Inc.
Jeffrey W Dunn
director
$369k
20,000 shares
-55%
31Weak
SIBNsell 310b5-1
SI-BONE, Inc.
Jeffrey W Dunn
director
$378k
20,000 shares
-55%
38Weak
SIBNsell 410b5-1
SI-BONE, Inc.
Laura Francis
Chief Executive Officer
$523k
25,972 shares
-8%
23Weak
SIBNsell 410b5-1
SI-BONE, Inc.
Anshul Maheshwari
Chief Op & Financial Officer
$234k
11,636 shares
-5%
50Moderate
SIBNsell 410b5-1
SI-BONE, Inc.
Laura Francis
Chief Executive Officer
$1.1M
55,807 shares
-15%
25Weak
SIBNsell 410b5-1
SI-BONE, Inc.
Anshul Maheshwari
Chief Op & Financial Officer
$337k
16,975 shares
-7%
54Moderate
SIBNsell 4
SI-BONE, Inc.
Laura Francis
Chief Executive Officer
$279k
14,956 shares
-3%
46Moderate
SIBNsell 4
SI-BONE, Inc.
Anshul Maheshwari
Chief Financial Officer
$87k
4,665 shares
-2%

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.