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sellWeak cluster of 410b5-1 plan

Nasym Afsari sold $1.2M of ONT

General Counsel and Secretary at Montrose Environmental Group, Inc.. 43,548 shares at an average of $28.38, traded Mar 2, 2026, filed Mar 4, 2026.

Warning score
25
Value
$1.2M
43,548 shares
Holdings after
204,878
-21% from before
From 52-week low
+166%
low $10.74, close $28.59
From 52-week high
-8%
high $31.06, as of Mar 2, 2026

Score components

  • Role
    Officer
    +15
  • Trade size
    $1.2M at market
    +25
  • Share of holdings sold
    Sold 21% of holdings
    +5
  • 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.

This signal so far: 1m -16.4%, 3m -39.5%, 6m -36.4%.

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.

ONTOct 12, 2026 · close 13.26
Since filing Mar 4, 2026: -51.4%SPY +14.4% · excess -65.8%

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 0001193125-26-092013, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Mar 2, 2026SOpen-market sale
Common Stock10b5-1
-200$30.00$6,000204,878Mar 4, 2026
Mar 3, 2026MOption exercise
Common Stock10b5-1
+43,348$6.03$261k248,226Mar 4, 2026
Mar 3, 2026SOpen-market sale
Common Stock10b5-1
-43,348$28.37$1.2M204,878Mar 4, 2026
Mar 3, 2026MOption exercise
Stock Option (Right to Buy)derivative10b5-1
-43,348$0.00$00Mar 4, 2026

Related signals

Other insiders at Montrose Environmental Group, Inc. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
48Moderate
ONTbuy
Montrose Environmental Group, Inc.
Peter Graham
director
$432k
25,140 shares
+11%
31Weak
ONTbuy
Montrose Environmental Group, Inc.
Peter Graham
director
$77k
4,860 shares
+2%
50Moderate
ONTbuy
Montrose Environmental Group, Inc.
Allan Dicks
Chief Financial Officer
$100k
6,535 shares
+3%
35Weak
ONTsell 410b5-1
Montrose Environmental Group, Inc.
Vijay Manthripragada
President & CEO
$1.2M
46,121 shares
-16%
27Weak
ONTsell 4
Montrose Environmental Group, Inc.
Jose Revuelta
Chief Strategy Officer
$212k
7,858 shares
-3%
50Moderate
ONTsell 4
Montrose Environmental Group, Inc.
Jose Revuelta
Chief Strategy Officer
$2.9M
102,668 shares
-31%
34Weak
ONTsell 4
Montrose Environmental Group, Inc.
J Thomas Presby
director
$289k
10,000 shares
-14%
20Weak
ONTsell10b5-1
Montrose Environmental Group, Inc.
Vijay Manthripragada
President & CEO
$2.2M
89,967 shares
-25%
28Weak
ONTbuy
Montrose Environmental Group, Inc.
Vincent Colman
director
$49k
2,600 shares
+48%
30Weak
ONTbuy
Montrose Environmental Group, Inc.
de Castro Jose Miguel Fernandez
director
$181k
10,000 shares
+7%

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.

Nasym Afsari sold $1.2M of ONT | InsiderTell