$RARE

Parschauer Karah Herdman sold $47K of RARE

Parschauer Karah Herdman (EVP and Chief Legal Officer) sold 1,900 shares of Ultragenyx Pharmaceutical Inc. (RARE) at $24.92 on 2026-08-03 under a Rule 10b5-1 trading plan.

Original reporting
SEC EDGAR · Parschauer Karah Herdman
Published Aug 4, 2026, 4:00 PM UTC
Analysis
AlphAI AI DeskAI-generated
Added to AlphAI Aug 6, 2026, 6:19 AM UTC. Informational, not investment advice.
How this was made
AlphAI summarizes source reporting and applies a structured AI analysis for relevance, timing, sentiment and ticker impact. Always verify material claims with the original publisher.
AlphAI market briefInsider activity
Primary signal
$RARE
Neutral
high confidence
Mentioned
$RARE
Relevance
2/10
AlphAI data visualization · based on SEC EDGAR
Decision brief

The 30-second read

$RARENeutralLow
01

Why it matters

The newest fact is the specific open-market sale details (shares, price, total value) by the EVP and Chief Legal Officer, executed under a pre-arranged 10b5-1 plan.

02

Market read

Traders may note the insider sale, but the 10b5-1 structure and modest dollar value suggest limited incremental trading edge.

03

What to watch

The sale size ($47.3k) is relatively small versus typical institutional flows, and the filing does not provide any new operational or financial guidance.

Relevance 2/10Novelty 3/10Timing: filed 2026-08-04, transaction dated 2026-08-03

Background

The article is a SEC Form 4 insider transaction disclosure for Ultragenyx Pharmaceutical Inc. (RARE).

Company-level read

Ticker impact

$RARENeutralHigh confidence
Context

Ultragenyx (RARE) disclosed an EVP and Chief Legal Officer open-market sale of 1,900 shares at $24.92 on 2026-08-03 under a 10b5-1 plan.

Expected impact

Low likelihood of a sustained price move; any reaction is likely muted and short-lived.

Evidence & confidence

Form 4 insider sales are common and the filing explicitly states a pre-arranged 10b5-1 plan, reducing interpretive weight versus discretionary selling.

Market effects

No clear sector read-through; this is company-specific insider transaction disclosure.

None indicated.

None indicated.

Counterpoint

Even with a 10b5-1 plan, repeated insider selling can coincide with management caution, so traders may still watch for follow-on disclosures.

Key entities

  • Ultragenyx Pharmaceutical Inc.

    RARE, the company that filed the Form 4 insider transaction.

  • Parschauer Karah Herdman

    EVP and Chief Legal Officer who sold 1,900 shares under a 10b5-1 plan.

Full insider trading history

This story covers one filing. See everything behind it: every insider buy and sell on record, 10b5-1 plans, late filings, and which officers and directors are trading.

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