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sellWeak cluster of 2

Karah Herdman Parschauer sold $76k of RARE

EVP and Chief Legal Officer at Ultragenyx Pharmaceutical Inc.. 2,450 shares at an average of $31.17, traded Sep 12, 2025, filed Sep 12, 2025.

Warning score
31
Value
$76k
2,450 shares
Holdings after
73,271
-3% from before
From 52-week low
+15%
low $26.31, close $30.31
From 52-week high
-49%
high $59.36, as of Sep 12, 2025

Score components

  • Role
    Officer
    +15
  • Trade size
    $76k at market
    +8
  • Share of holdings sold
    Sold 3.2% of holdings
    0
  • Cluster
    2 insiders selling within 14 days
    +8

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 +3.8%, 3m +19.5%, 6m -29.6%.

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.

RAREOct 9, 2026 · close 15.48
Since filing Sep 12, 2025: -48.9%SPY +20.0% · excess -69.0%

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 0001677455-25-000005, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Sep 12, 2025SOpen-market sale
Common Stock
-2,450$31.17$76k73,271Sep 12, 2025

Related signals

Other insiders at Ultragenyx Pharmaceutical Inc. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
0Weak
RAREsell10b5-1
Ultragenyx Pharmaceutical Inc.
Theodore Alan Huizenga
SVP, Chief Accounting Officer
$17k
1,283 shares
-2%
15Weak
RAREsell
Ultragenyx Pharmaceutical Inc.
Theodore Alan Huizenga
SVP, Chief Accounting Officer
$2,252
161 shares
-0%
15Weak
RAREsell
Ultragenyx Pharmaceutical Inc.
Eric Crombez
EVP and Chief Medical Officer
$8,586
344 shares
-0%
47Moderate
RAREsell 7
Ultragenyx Pharmaceutical Inc.
Karah Herdman Parschauer
EVP and Chief Legal Officer
$208k
9,526 shares
-12%
41Moderate
RAREsell 7
Ultragenyx Pharmaceutical Inc.
Eric Crombez
EVP and Chief Medical Officer
$160k
7,029 shares
-8%
48Moderate
RAREsell 7
Ultragenyx Pharmaceutical Inc.
Erik Harris
EVP & Chief Commercial Officer
$240k
10,539 shares
-11%
35Weak
RAREsell 710b5-1
Ultragenyx Pharmaceutical Inc.
Howard Horn
Chief Financial Officer
$228k
10,044 shares
-11%
36Weak
RAREsell 7
Ultragenyx Pharmaceutical Inc.
Theodore Alan Huizenga
SVP, Chief Accounting Officer
$37k
1,632 shares
-3%
65Notable
RAREsell 7
Ultragenyx Pharmaceutical Inc.
Emil D Kakkis
President & CEO
$1.2M
54,404 shares
-8%
42Moderate
RAREsell 7
Ultragenyx Pharmaceutical Inc.
Karah Herdman Parschauer
EVP and Chief Legal Officer
$185k
8,135 shares
-10%

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.

Karah Herdman Parschauer sold $76k of RARE | InsiderTell