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sellWeak cluster of 210b5-1 plan

Daniel Calkins sold $36k of VSTM

Chief Financial Officer at Verastem, Inc.. 5,039 shares at an average of $7.16, traded Jan 12, 2026, filed Jan 14, 2026.

Warning score
16
Value
$36k
5,039 shares
Holdings after
104,719
-5% from before
From 52-week low
+71%
low $4.15, close $7.11
From 52-week high
-34%
high $10.77, as of Jan 12, 2026

Score components

  • Role
    CFO
    +22
  • Trade size
    $36k at market
    +6
  • Share of holdings sold
    Sold 4.6% of holdings
    0
  • Cluster
    2 insiders selling within 14 days
    +8
  • 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.

This signal so far: 1m -14.3%, 3m -6.8%, 6m -15.6%.

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.

VSTMOct 12, 2026 · close 8.25
Since filing Jan 14, 2026: +21.5%SPY +13.6% · excess +7.9%

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 0001104659-26-003787, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Jan 12, 2026SOpen-market sale
Common Stock10b5-1
-5,039$7.16$36k104,719Jan 14, 2026

Related signals

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

ScoreCompanyInsiderValueHoldingsFiled
10Weak
VSTMsell 210b5-1
Verastem, Inc.
Daniel Calkins
Chief Financial Officer
$21k
2,566 shares
-2%
28Weak
VSTMsell 210b5-1
Verastem, Inc.
Dan Paterson
President and CEO
$353k
44,121 shares
-6%
10Weak
VSTMsell 210b5-1
Verastem, Inc.
Daniel Calkins
Chief Financial Officer
$424
55 shares
-0%
5Weak
VSTMsell10b5-1
Verastem, Inc.
Dan Paterson
President and CEO
$7,565
1,302 shares
-0%
10Weak
VSTMsell 210b5-1
Verastem, Inc.
Daniel Calkins
Chief Financial Officer
$17k
4,089 shares
-3%
22Weak
VSTMsell 210b5-1
Verastem, Inc.
Dan Paterson
President and CEO
$87k
20,871 shares
-3%
5Weak
VSTMsell10b5-1
Verastem, Inc.
Dan Paterson
President and CEO
$4,691
806 shares
-0%
5Weak
VSTMsell10b5-1
Verastem, Inc.
Dan Paterson
President and CEO
$6,489
970 shares
-0%
21Weak
VSTMsell 210b5-1
Verastem, Inc.
Dan Paterson
President and CEO
$74k
10,321 shares
-3%
17Weak
VSTMsell 410b5-1
Verastem, Inc.
Daniel Calkins
Chief Financial Officer
$629
80 shares
-0%

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.

Daniel Calkins sold $36k of VSTM | InsiderTell