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SEC EDGARAUG 211 min read$KRRO

FORMELA JEAN FRANCOIS sold $399K of KRRO (indirect holdings)

FORMELA JEAN FRANCOIS sold 28,468 indirectly-held shares of Korro Bio, Inc. (KRRO) at $14.00 ($0.40M total) across 2 trades on 2026-08-19 under a Rule 10b5-1 trading plan.

Original reporting
SEC EDGAR · FORMELA JEAN FRANCOIS
Published Aug 21, 2026, 8:20 PM UTC
Analysis
AlphAI AI DeskAI-generated
Added to AlphAI Aug 21, 2026, 8:43 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.
About AlphAI AI DeskScoring methodologyReport an issue
AlphAI market briefInsider activity
Primary signal
$KRRO
Neutral
high confidence
Mentioned
$KRRO
Relevance
3/10
AlphAI data visualization · based on SEC EDGAR
Decision brief

The 30-second read

$KRRONeutralLow
01

Why it matters

The disclosed sale is routine and unlikely to move the stock materially.

02

Market read

Low relevance; typical insider sell with minimal market effect.

03

What to watch

Potential upcoming dilution or corporate actions not disclosed.

Relevance 3/10Novelty 4/10Timing: filing date 2026-08-21

Background

Form 4 filings disclose insider transactions; director sales are monitored for signals.

Company-level read

Ticker impact

$KRRONeutralHigh confidence
Context

Director Jean Francois Formela sold 28,468 shares for $398,552 via a 10b5-1 plan.

Expected impact

Potential slight downward pressure, but likely negligible.

Evidence & confidence

The sale amount is under $1M and represents a small fraction of total holdings, typical for routine 10b5-1 plans.

Market effects

Sector

None significant for the biotech sector.

Regional

No regional impact.

Global

Limited to KRRO shareholders.

Counterpoint

What could challenge this read

If the insider had insider information, the sell could signal upcoming negative news.

Key entities

  • Director
    Jean Francois Formela

    Insider selling shares under a pre-arranged 10b5-1 plan.

  • Company
    Korro Bio, Inc.

    Biotech firm listed on Nasdaq under ticker KRRO.

Read at source← All news

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.

KRRO insider trading history →

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