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SEC EDGARSEP 181 min read$GKOS

Navratil Tomas sold $243K of GKOS

Navratil Tomas (CHIEF DEVELOPMENT OFFICER) sold 1,457 shares of GLAUKOS Corp (GKOS) at an average of $166.92 ($163.20–$172.00, $0.24M total) across 7 trades on 2026-09-16 under a Rule 10b5-1 trading plan.

Original reporting
SEC EDGAR · Navratil Tomas
Published Sep 18, 2026, 9:32 PM UTC
Analysis
AlphAI AI DeskAI-generated
Added to AlphAI Sep 18, 2026, 9:34 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
$GKOS
Neutral
high confidence
Mentioned
$GKOS
Relevance
3/10
AlphAI data visualization · based on SEC EDGAR
Decision brief

The 30-second read

$GKOSNeutralLow
01

Why it matters

The disclosed sale is routine and modest; investors should monitor for any subsequent insider activity.

02

Market read

Minor insider sell; low trading relevance.

03

What to watch

Potential tax or liquidity reasons for the sale; not necessarily a confidence issue.

Relevance 3/10Novelty 3/10Timing: post‑market 2026‑09‑16

Background

Form 4 filings disclose insider transactions; a 10b5‑1 plan indicates pre‑arranged trades.

Company-level read

Ticker impact

$GKOSNeutralHigh confidence
Context

Chief Development Officer Navratil Tomas sold 1,457 shares for $243K via a 10b5‑1 plan, reducing his stake to 72,433 shares.

Expected impact

No significant impact expected.

Evidence & confidence

The sale size is small relative to market cap and follows a pre‑arranged plan, indicating routine portfolio rebalancing rather than loss of confidence.

Market effects

Sector

None; the transaction is company‑specific.

Regional

None; limited to GKOS shareholders.

Global

None

Counterpoint

What could challenge this read

If the insider is offloading shares, it could signal upcoming negative news.

Key entities

  • person
    Navratil Tomas

    Chief Development Officer of GLAUKOS Corp.

  • company
    GLAUKOS Corp

    Ticker GKOS, a US‑listed biotech.

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.

GKOS insider trading history →

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