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SEC EDGARAUG 281 min read$ADPT

OWEN KATEY EINTERZ sold $250K of ADPT

OWEN KATEY EINTERZ sold 9,615 shares of Adaptive Biotechnologies Corp (ADPT) at $26.00 ($0.25M total) on 2026-08-26.

Original reporting
SEC EDGAR · OWEN KATEY EINTERZ
Published Aug 28, 2026, 9:50 PM UTC
Analysis
alphai AI DeskAI-generated
Added to alphai Aug 28, 2026, 9:52 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
$ADPT
Bearish
medium confidence
Mentioned
$ADPT
Relevance
4/10
alphai data visualization · based on SEC EDGAR
Decision brief

The 30-second read

$ADPTBearishLow
01

Why it matters

The director's sale adds modest negative pressure, but the overall impact on ADPT's valuation is limited.

02

Market read

Primary insider sale provides new information for short‑term traders; limited long‑term effect.

03

What to watch

Einterz's remaining 78,639 shares still represent a sizable stake, mitigating concern.

Relevance 4/10Novelty 4/10Timing: post‑market Aug 26, filed Aug 28

Background

SEC Form 4 filing discloses insider transactions; this is the first public report of the sale.

Company-level read

Ticker impact

$ADPTBearishMedium confidence
Context

Director Owen Katey Einterz sold 9,615 shares of Adaptive Biotechnologies for $250K on Aug 26, 2026.

Expected impact

Potential short-term dip of 0.5‑1% as market digests the sale.

Evidence & confidence

Director sales often weigh on investor perception; however, the $250K amount is small for a mid‑cap biotech.

Market effects

Sector

Minor negative signal for biotech sector insiders, but unlikely to affect broader sector.

Regional

No significant regional effect; confined to US biotech investors.

Global

Limited global relevance; only impacts ADPT shareholders.

Counterpoint

What could challenge this read

The sale could be routine portfolio rebalancing, not a red flag.

Key entities

  • Company
    Adaptive Biotechnologies Corp

    US‑listed biotech (ticker ADPT) focused on immune profiling.

  • Individual
    Owen Katey Einterz

    Director of Adaptive Biotechnologies.

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.

ADPT insider trading history →

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