$CPRX

DENKHAUS DONALD A sold (to issuer) $15.7M of CPRX

DENKHAUS DONALD A sold (to issuer) 498,773 shares of CATALYST PHARMACEUTICALS, INC. (CPRX) at $31.50 ($15.71M total) on 2026-07-15.

Original reporting
SEC EDGAR · DENKHAUS DONALD A
Published Jul 17, 2026, 8:15 PM UTC
Analysis
alphai AI DeskAI-generated
Added to alphai Jul 17, 2026, 8:29 PM 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
$CPRX
Neutral
medium confidence
Mentioned
$CPRX
Relevance
7/10
alphai data visualization · based on SEC EDGAR
Decision brief

The 30-second read

$CPRXNeutralLow
01

Why it matters

The newest fact is the director’s $15.71M sale at $31.50 with post-transaction holdings of 0 shares; this can influence sentiment but does not change fundamentals in the text.

02

Market read

Traders may monitor CPRX for sentiment effects from a large insider sale, but the filing provides no new business or clinical catalyst.

03

What to watch

No 10b5-1 plan is cited, but the filing also lacks context on tax, diversification, or compensation mechanics; without that, interpretation risk is high.

Relevance 7/10Novelty 5/10Timing: after-hours/filing date disclosure on 2026-07-17

Background

The article is an SEC Form 4 insider transaction disclosure for Catalyst Pharmaceuticals, Inc.

Company-level read

Ticker impact

$CPRXNeutralMedium confidence
Context

Catalyst Pharmaceuticals director Donald A Denkhaus sold 498,773 shares to the issuer at $31.50 on 2026-07-15, totaling $15.71M, per Form 4.

Expected impact

Likely limited immediate price impact; any effect would be sentiment-driven rather than fundamental.

Evidence & confidence

The filing is a primary SEC Form 4 disclosure with transaction size and price, but it does not provide new operational or guidance information.

Market effects

No direct sector read-across; this is company-specific insider transaction data.

None indicated.

None indicated.

Counterpoint

A sale to the issuer can be part of routine liquidity or structured transactions, so it may not signal reduced confidence.

Key entities

  • CATALYST PHARMACEUTICALS, INC.

    CPRX, subject of the Form 4 insider transaction disclosure.

  • DENKHAUS DONALD A

    Director who sold 498,773 shares to the issuer at $31.50 on 2026-07-15.

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.

Related articles