Skip to content
sellWeak cluster of 410b5-1 plan

Hunter C Smith sold $2.7M of RYTM

Chief Financial Officer at RHYTHM PHARMACEUTICALS, INC.. 28,088 shares at an average of $96.29, traded Aug 12, 2025, filed Aug 14, 2025.

Warning score
32
Value
$2.7M
28,088 shares
Holdings after
116,915
-20% from before
From 52-week low
+105%
low $46.95, close $96.46
From 52-week high
0%
high $96.46, as of Aug 12, 2025

Score components

  • Role
    CFO
    +22
  • Trade size
    $2.7M at market
    +25
  • Share of holdings sold
    Sold 20% 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 -0.3%, 3m -0.6%, 6m -0.4%.

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.

RYTMOct 12, 2026 · close 89.82
Since filing Aug 14, 2025: -6.9%SPY +22.3% · excess -29.2%

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 0001104659-25-078815, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Aug 12, 2025MOption exercise
Common Stock10b5-1
+24,611$6.88$169k141,526Aug 14, 2025
Aug 12, 2025SOpen-market sale
Common Stock10b5-1
-24,611$96.33$2.4M116,915Aug 14, 2025
Aug 13, 2025MOption exercise
Common Stock10b5-1
+3,477$6.88$24k120,392Aug 14, 2025
Aug 13, 2025SOpen-market sale
Common Stock10b5-1
-3,477$96.00$334k116,915Aug 14, 2025
Aug 12, 2025MOption exercise
Stock Options (Right to Buy)derivative10b5-1
-24,611$0.00$03,477Aug 14, 2025
Aug 13, 2025MOption exercise
Stock Options (Right to Buy)derivative10b5-1
-3,477$0.00$00Aug 14, 2025

Related signals

Other insiders at RHYTHM PHARMACEUTICALS, INC. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
28Weak
RYTMsell 210b5-1
RHYTHM PHARMACEUTICALS, INC.
David P Meeker
President and CEO
$5.1M
50,000 shares
-17%
30Weak
RYTMsell 210b5-1
RHYTHM PHARMACEUTICALS, INC.
Hunter C Smith
Chief Financial Officer
$6.6M
62,774 shares
-36%
54Moderate
RYTMsell 410b5-1
RHYTHM PHARMACEUTICALS, INC.
Alastair Garfield
Chief Scientific Officer
$913k
7,763 shares
-77%
20Weak
RYTMsell 410b5-1
RHYTHM PHARMACEUTICALS, INC.
Joseph Shulman
Chief Technical Officer
$608k
5,079 shares
-24%
40Moderate
RYTMsell 410b5-1
RHYTHM PHARMACEUTICALS, INC.
Jennifer Kayden Lee
EVP, Head of North America
$8.9M
75,834 shares
-100%
40Moderate
RYTMsell 410b5-1
RHYTHM PHARMACEUTICALS, INC.
Yann Mazabraud
EVP, Head of International
$6.6M
57,000 shares
-51%
25Weak
RYTMsell10b5-1
RHYTHM PHARMACEUTICALS, INC.
Lynn A. Tetrault
director
$3.7M
37,000 shares
-84%
37Weak
RYTMsell
RHYTHM PHARMACEUTICALS, INC.
Christopher Paul German
Corporate Controller & CAO
$428k
4,643 shares
-100%
38Weak
RYTMsell
RHYTHM PHARMACEUTICALS, INC.
Christopher Paul German
Corporate Controller & CAO
$503k
5,614 shares
-97%
24Weak
RYTMsell10b5-1
RHYTHM PHARMACEUTICALS, INC.
Hunter C Smith
Chief Financial Officer
$806k
7,954 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.