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sellModerate cluster of 310b5-1 plan

Jon Congleton sold $644k of MLYS

Chief Executive Officer at Mineralys Therapeutics, Inc.. 15,100 shares at an average of $42.67, traded Oct 13, 2025, filed Oct 15, 2025.

Warning score
40
Value
$644k
15,100 shares
Holdings after
831,305
-2% from before
From 52-week low
+391%
low $8.76, close $43.05
From 52-week high
0%
high $43.05, as of Oct 13, 2025

Score components

  • Role
    CEO
    +25
  • Trade size
    $644k at market
    +20
  • Share of holdings sold
    Sold 1.8% 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.

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.

MLYSOct 9, 2026 · close 23.37
Since filing Oct 15, 2025: -46.1%SPY +18.3% · excess -64.4%

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 0001933414-25-000129, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Oct 13, 2025SOpen-market sale
Common Stock10b5-1
-13,548$42.63$578k832,857Oct 15, 2025
Oct 13, 2025SOpen-market sale
Common Stock10b5-1
-1,552$43.03$67k831,305Oct 15, 2025

Related signals

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

ScoreCompanyInsiderValueHoldingsFiled
50Moderate
MLYSsell 310b5-1
Mineralys Therapeutics, Inc.
Jon Congleton
Chief Executive Officer
$1.9M
75,000 shares
-12%
55Moderate
MLYSsell 4
Mineralys Therapeutics, Inc.
Brian Taylor Slingsby
director
$3.0M
104,320 shares
-1%
12Weak
MLYSsell 410b5-1
Mineralys Therapeutics, Inc.
Eric Warren
Chief Commercial Officer
$209k
7,438 shares
-16%
14Weak
MLYSsell 310b5-1
Mineralys Therapeutics, Inc.
Daphne Karydas
director
$86k
3,000 shares
-33%
46Moderate
MLYSbuy
Mineralys Therapeutics, Inc.
Ra Capital Management, L.p.
director
$8.8M
369,000 shares
+7%
23Weak
MLYSsell10b5-1
Mineralys Therapeutics, Inc.
Jon Congleton
Chief Executive Officer
$530k
16,236 shares
-2%
60Notable
MLYSsell 5
Mineralys Therapeutics, Inc.
Brian Taylor Slingsby
director, owner
$43M
1,000,000 shares
-11%
70Notable
MLYSsell 5
Mineralys Therapeutics, Inc.
Jon Congleton
Chief Executive Officer
$9.1M
200,000 shares
-24%
60Notable
MLYSsell 5
Mineralys Therapeutics, Inc.
Alexander M Gold
director
$1.6M
34,675 shares
-231%
56Moderate
MLYSsell 5
Mineralys Therapeutics, Inc.
Daphne Karydas
director
$690k
15,000 shares
-100%

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.

Jon Congleton sold $644k of MLYS | InsiderTell