$MIRM

Peetz Christopher sold $2.0M of MIRM

Peetz Christopher (CHIEF EXECUTIVE OFFICER) sold 20,000 shares of Mirum Pharmaceuticals, Inc. (MIRM) at an average of $98.92 ($98.51–$100.14, $1.98M total) across 3 trades on 2026-08-10 under a Rule 10b5-1 trading plan.

Original reporting
SEC EDGAR · Peetz Christopher
Published Aug 11, 2026, 9:41 PM UTC
Analysis
AlphAI AI DeskAI-generated
Added to AlphAI Aug 11, 2026, 9:55 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
$MIRM
Neutral
high confidence
Mentioned
$MIRM
Relevance
5/10
AlphAI data visualization · based on SEC EDGAR
Decision brief

The 30-second read

$MIRMNeutralLow
01

Why it matters

The only new information is the disclosed sale size, price range, and that it was executed under a pre-arranged 10b5-1 plan; no new company fundamentals are provided.

02

Market read

Traders may monitor insider selling as a sentiment input, but this specific disclosure lacks a fundamental catalyst.

03

What to watch

The filing does not reveal whether the CEO’s remaining holdings are increasing via other grants or purchases, so sentiment should be weighed against the broader insider activity trend.

Relevance 5/10Novelty 5/10Timing: filed after-hours on 2026-08-11, covering sales dated 2026-08-10

Background

The article is a SEC Form 4 insider transaction report for Mirum Pharmaceuticals, Inc., filed by CEO Peetz Christopher.

Company-level read

Ticker impact

$MIRMNeutralHigh confidence
Context

CEO Peetz Christopher sold about 20,000 shares in open-market transactions at $98.51 to $100.14, totaling ~$1.98M, under a 10b5-1 plan.

Expected impact

Low likelihood of sustained price impact; any reaction is likely limited to short-term sentiment around insider selling.

Evidence & confidence

The filing is a Form 4 insider transaction with an explicitly pre-arranged 10b5-1 plan, and it provides no new operational, financial, or regulatory information about Mirum Pharmaceuticals.

Market effects

Minimal, as the disclosure is company-specific and does not indicate sector-wide regulatory or clinical changes.

None indicated; this is a US-listed issuer insider transaction.

None indicated; no cross-border deal, trial, or regulatory action is described.

Counterpoint

Insider sales can be interpreted as liquidity-driven rather than bearish, especially when executed under a 10b5-1 plan.

Key entities

  • Mirum Pharmaceuticals, Inc.

    US-listed company whose CEO executed open-market sales disclosed on Form 4.

  • Peetz Christopher

    Chief Executive Officer and director who sold 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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