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sellWeak cluster of 210b5-1 plan

Robert F Mehmel sold $407k of GFF

President and COO at GRIFFON CORP. 4,166 shares at an average of $97.76, traded Jun 30, 2026, filed Jul 2, 2026.

Warning score
24
Value
$407k
4,166 shares
Holdings after
785,900
-1% from before
From 52-week low
+47%
low $66.11, close $97.31
From 52-week high
0%
high $97.31, as of Jun 30, 2026

Score components

  • Role
    President
    +20
  • Trade size
    $407k at market
    +16
  • Share of holdings sold
    Sold 0.5% 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.

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.

GFFOct 12, 2026 · close 89.74
Since filing Jul 2, 2026: -3.1%SPY +4.7% · 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 0001628280-26-047020, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Jun 30, 2026SOpen-market sale
Common Stock10b5-1
-4,166$97.76$407k785,900Jul 2, 2026

Related signals

Other insiders at GRIFFON CORP and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
45Moderate
GFFsell 5
GRIFFON CORP
Kevin F Sullivan
director
$370k
3,500 shares
-8%
44Moderate
GFFsell 5
GRIFFON CORP
Cheryl L Turnbull
director
$318k
3,000 shares
-9%
30Weak
GFFsell 510b5-1
GRIFFON CORP
Robert F Mehmel
President and COO
$347k
3,240 shares
-0%
36Weak
GFFsell 510b5-1
GRIFFON CORP
Brian G Harris
EVP, Chief Financial Officer
$564k
5,267 shares
-4%
40Moderate
GFFsell 510b5-1
GRIFFON CORP
Robert F Mehmel
President and COO
$2.4M
22,567 shares
-3%
40Moderate
GFFsell 510b5-1
GRIFFON CORP
Robert F Mehmel
President and COO
$3.8M
37,061 shares
-5%
45Moderate
GFFsell 510b5-1
GRIFFON CORP
Ronald J Kramer
Chairman of the Board and CEO
$10M
100,000 shares
-6%
42Moderate
GFFsell 510b5-1
GRIFFON CORP
Brian G Harris
EVP, Chief Financial Officer
$1.1M
11,050 shares
-8%
29Weak
GFFsell 210b5-1
GRIFFON CORP
Brian G Harris
EVP, Chief Financial Officer
$606k
6,183 shares
-4%
20Weak
GFFsell 310b5-1
GRIFFON CORP
Robert F Mehmel
President and COO
$27k
286 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.

Robert F Mehmel sold $407k of GFF | InsiderTell