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sellModerate cluster of 310b5-1 plan

Michael Thomas Henderson sold $1.5M of APGE

Chief Executive Officer at Apogee Therapeutics, Inc.. 20,000 shares at an average of $74.78, traded Mar 11, 2026, filed Mar 13, 2026.

Warning score
45
Value
$1.5M
20,000 shares
Holdings after
1,152,987
-2% from before
From 52-week low
-
no price yet
From 52-week high
-
no price yet

Score components

  • Role
    CEO
    +25
  • Trade size
    $1.5M at market
    +25
  • Share of holdings sold
    Sold 1.7% 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.

Rows in this filing

Every transaction in Form 4 0001104659-26-027802, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Mar 11, 2026SOpen-market sale
Common Stock10b5-1
-8,363$74.29$621k1,164,624Mar 13, 2026
Mar 11, 2026SOpen-market sale
Common Stock10b5-1
-8,219$74.83$615k1,156,405Mar 13, 2026
Mar 11, 2026SOpen-market sale
Common Stock10b5-1
-3,418$75.86$259k1,152,987Mar 13, 2026

Related signals

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

ScoreCompanyInsiderValueHoldingsFiled
38Weak
APGEsell 210b5-1
Apogee Therapeutics, Inc.
Michael Thomas Henderson
Chief Executive Officer
$11M
80,000 shares
-7%
33Weak
APGEsell 210b5-1
Apogee Therapeutics, Inc.
Carl Dambkowski
Chief Medical Officer
$3.5M
26,400 shares
-13%
38Weak
APGEsell 210b5-1
Apogee Therapeutics, Inc.
Michael Thomas Henderson
Chief Executive Officer
$1.7M
20,000 shares
-2%
5Weak
APGEsell 210b5-1
Apogee Therapeutics, Inc.
Carl Dambkowski
Chief Medical Officer
$433k
5,500 shares
-3%
45Moderate
APGEsell 310b5-1
Apogee Therapeutics, Inc.
Michael Thomas Henderson
Chief Executive Officer
$1.6M
20,000 shares
-2%
12Weak
APGEsell 310b5-1
Apogee Therapeutics, Inc.
Carl Dambkowski
Chief Medical Officer
$463k
5,500 shares
-3%
28Weak
APGEsell 310b5-1
Apogee Therapeutics, Inc.
Jane Henderson
Chief Financial Officer
$164k
2,000 shares
-1%
22Weak
APGEsell 210b5-1
Apogee Therapeutics, Inc.
Jane Henderson
Chief Financial Officer
$180k
2,000 shares
-1%
45Moderate
APGEsell 310b5-1
Apogee Therapeutics, Inc.
Michael Thomas Henderson
Chief Executive Officer
$1.7M
20,000 shares
-2%
28Weak
APGEsell 310b5-1
Apogee Therapeutics, Inc.
Jane Henderson
Chief Financial Officer
$170k
2,000 shares
-1%

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.

Michael Thomas Henderson sold $1.5M of APGE | InsiderTell