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sellWeak cluster of 210b5-1 plan

Christopher Peetz sold $2.5M of MIRM

CHIEF EXECUTIVE OFFICER at Mirum Pharmaceuticals, Inc.. 40,000 shares at an average of $62.00, traded Aug 11, 2025, filed Aug 12, 2025.

Warning score
28
Value
$2.5M
40,000 shares
Holdings after
138,641
-22% from before
From 52-week low
+74%
low $37.85, close $65.87
From 52-week high
0%
high $65.87, as of Aug 11, 2025

Score components

  • Role
    CEO
    +25
  • Trade size
    $2.5M at market
    +25
  • Share of holdings sold
    Sold 22% of holdings
    +5
  • Cluster
    2 insiders selling within 14 days
    +8
  • 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.

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.

MIRMOct 9, 2026 · close 86.01
Since filing Aug 12, 2025: +32.9%SPY +22.8% · excess +10.1%

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 0001415889-25-021521, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Aug 11, 2025MOption exercise
Common Stock10b5-1
+40,000$2.94$117k178,641Aug 12, 2025
Aug 11, 2025SOpen-market sale
Common Stock10b5-1
-40,000$62.00$2.5M138,641Aug 12, 2025
Aug 11, 2025MOption exercise
Employee Stock Option (right to buy)derivative10b5-1
-40,000$0.00$0158,487Aug 12, 2025

Related signals

Other insiders at Mirum Pharmaceuticals, Inc. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
52Moderate
MIRMsell 3
Mirum Pharmaceuticals, Inc.
Eric Bjerkholt
CHIEF FINANCIAL OFFICER
$978k
9,943 shares
-18%
38Weak
MIRMsell 310b5-1
Mirum Pharmaceuticals, Inc.
Jolanda Howe
SVP, GLOBAL CONTROLLER
$66k
658 shares
-52%
35Weak
MIRMsell 310b5-1
Mirum Pharmaceuticals, Inc.
Christopher Peetz
CHIEF EXECUTIVE OFFICER
$3.0M
30,000 shares
-13%
33Weak
MIRMsell 210b5-1
Mirum Pharmaceuticals, Inc.
Michael G Grey
director
$3.9M
50,000 shares
-100%
24Weak
MIRMsell 210b5-1
Mirum Pharmaceuticals, Inc.
Saira Ramasastry
director
$400k
5,000 shares
-100%
19Weak
MIRMsell 210b5-1
Mirum Pharmaceuticals, Inc.
Saira Ramasastry
director
$139k
2,000 shares
-100%
25Weak
MIRMsell10b5-1
Mirum Pharmaceuticals, Inc.
Michael G Grey
director
$3.7M
50,000 shares
-100%
25Weak
MIRMsell10b5-1
Mirum Pharmaceuticals, Inc.
Michael G Grey
director
$3.5M
50,000 shares
-100%
41Moderate
MIRMsell 2
Mirum Pharmaceuticals, Inc.
Eric Bjerkholt
CHIEF FINANCIAL OFFICER
$728k
9,578 shares
-19%
53Moderate
MIRMsell 2
Mirum Pharmaceuticals, Inc.
Laura Brege
director
$1.3M
17,000 shares
-52%

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.

Christopher Peetz sold $2.5M of MIRM | InsiderTell