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sellWeak cluster of 310b5-1 plan

Mark C. Thurmond sold $40k of TENB

Chief Operating Officer at Tenable Holdings, Inc.. 939 shares at an average of $42.95, traded Nov 27, 2024, filed Dec 2, 2024.

Warning score
21
Value
$40k
939 shares
Holdings after
38,046
-2% from before
From 52-week low
-
no price yet
From 52-week high
-
no price yet

Score components

  • Role
    COO
    +20
  • Trade size
    $40k at market
    +6
  • Share of holdings sold
    Sold 2.4% of holdings
    0
  • Cluster
    3 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.

This signal so far: 1m -6.4%, 3m -10.5%, 6m -23.4%.

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.

TENBOct 9, 2026 · close 41.59
Since filing Dec 2, 2024: -1.1%SPY +32.0% · excess -33.1%

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 0001660280-24-000173, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Nov 27, 2024SOpen-market sale
Common Stock10b5-1
-939$42.95$40k38,046Dec 2, 2024

Related signals

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

ScoreCompanyInsiderValueHoldingsFiled
53Moderate
TENBbuy
Tenable Holdings, Inc.
Matthew Charles Brown
Chief Financial Officer
$258k
12,000 shares
+65%
47Moderate
TENBbuy 2
Tenable Holdings, Inc.
Raymond Vicks Jr.
director
$100k
4,500 shares
+38%
50Moderate
TENBbuy 2
Tenable Holdings, Inc.
Arthur W Coviello Jr
director
$258k
12,000 shares
+30%
45Moderate
TENBsell
Tenable Holdings, Inc.
A Brooke Seawell
director
$2.9M
115,000 shares
-100%
0Weak
TENBsell
Tenable Holdings, Inc.
Barron Anschutz
other
$28k
976 shares
-2%
67Notable
TENBsell 4
Tenable Holdings, Inc.
A Brooke Seawell
director
$462k
15,000 shares
-100%
46Moderate
TENBsell 4
Tenable Holdings, Inc.
A Brooke Seawell
director
$139k
4,622 shares
-24%
23Weak
TENBsell 4
Tenable Holdings, Inc.
Barron Anschutz
other
$20k
670 shares
-1%
50Moderate
TENBsell 4
Tenable Holdings, Inc.
Stephen A Vintz
Co-Chief Executive Officer
$103k
3,464 shares
-1%
48Moderate
TENBsell 4
Tenable Holdings, Inc.
Mark C. Thurmond
Co-Chief Executive Officer
$76k
2,541 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.

Mark C. Thurmond sold $40k of TENB | InsiderTell