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sellWeak cluster of 410b5-1 plan

Jeffrey W Dunn sold $426k of SIBN

director at SI-BONE, Inc.. 20,000 shares at an average of $21.28, traded Jan 8, 2026, filed Jan 12, 2026.

Warning score
32
Value
$426k
20,000 shares
Holdings after
80,115
-20% from before
From 52-week low
+60%
low $13.05, close $20.88
From 52-week high
-2%
high $21.40, as of Jan 8, 2026

Score components

  • Role
    Director
    +15
  • Trade size
    $426k at market
    +17
  • Share of holdings sold
    Sold 20% of holdings
    +5
  • Cluster
    4 insiders selling within 14 days
    +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 9, 2026 · close 19.37
Since filing Jan 12, 2026: +8.4%SPY +12.9% · excess -4.5%

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 0001035986-26-000001, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Jan 8, 2026SOpen-market sale
Common Stockindirect: by Trust10b5-1
-20,000$21.28$426k80,115Jan 12, 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%
16Weak
SIBNsell10b5-1
SI-BONE, Inc.
Jeffrey W Dunn
director
$378k
20,000 shares
-55%
35Weak
SIBNsell 2
SI-BONE, Inc.
Jeffrey W Dunn
director
$55k
3,575 shares
-18%
25Weak
SIBNsell 3
SI-BONE, Inc.
Timothy E Davis JR
director
$104k
7,280 shares
-10%
52Moderate
SIBNsell 3
SI-BONE, Inc.
Laura Francis
Chief Executive Officer
$220k
14,957 shares
-3%
23Weak
SIBNsell 2
SI-BONE, Inc.
Jeffrey W Dunn
director
$4,432
337 shares
-4%
27Weak
SIBNsell
SI-BONE, Inc.
Mika Nishimura
director
$57k
4,100 shares
-11%
70Notable
SIBNsell 4
SI-BONE, Inc.
Laura Francis
Chief Executive Officer
$1.4M
93,475 shares
-15%

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.

Jeffrey W Dunn sold $426k of SIBN | InsiderTell