$RBRK

Wassenaar Yvonne sold $58K of RBRK

Wassenaar Yvonne sold 721 shares of Rubrik, Inc. (RBRK) at $80.73 on 2026-06-03 under a Rule 10b5-1 trading plan.

Original reporting
SEC EDGAR · Wassenaar Yvonne
Published Jun 4, 2026, 1:41 AM UTC
Analysis
AlphAI AI DeskAI-generated
Added to AlphAI Jun 4, 2026, 2:03 AM 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
$RBRK
Neutral
medium confidence
Mentioned
$RBRK
Relevance
6/10
AlphAI data visualization · based on SEC EDGAR
Decision brief

The 30-second read

$RBRKNeutralLow
01

Why it matters

The disclosure provides transparency on insider activity but does not introduce a new operational/financial catalyst for Rubrik.

02

Market read

For traders, this is primarily a sentiment/positioning datapoint rather than a fundamental driver.

03

What to watch

The sale size is relatively small and the plan is pre-arranged, so the market may discount it unless paired with other negative company-specific news.

Relevance 6/10Novelty 3/10Timing: Filed/dated June 3, 2026 (after-hours disclosure window)

Background

SEC Form 4 reports insider transactions (director/officer/10% owners). This one is an open-market sale executed under a pre-arranged 10b5-1 plan.

Company-level read

Ticker impact

$RBRKNeutralMedium confidence
Context

Rubrik director Wassenaar Yvonne sold 721 shares in an open-market transaction under a pre-arranged 10b5-1 plan, disclosed via Form 4.

Expected impact

Likely limited near-term impact; any effect is more about sentiment/positioning than fundamentals.

Evidence & confidence

The filing is a routine Form 4 with a small value (~$58k) and explicitly states a pre-arranged 10b5-1 plan, which often dampens interpretive weight.

Market effects

No clear sector read-through from a single director’s small 10b5-1 sale.

None.

None.

Counterpoint

Even with 10b5-1, repeated insider selling can coincide with internal caution; traders may still watch for follow-on sales.

Key entities

  • Rubrik, Inc.

    Subject of the Form 4 insider transaction disclosure.

  • Wassenaar Yvonne

    Director who sold 721 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.

Related articles

$RBRKLow

Rubrik Unveils Rubrik Code Guardian, Harnessing Anthropic’s Claude Mythos 5 to Red-Team Code and Prioritize Cyber Risks

Rubrik (NYSE: RBRK) launched Rubrik Code Guardian, using Anthropic's Claude Mythos 5 to test and prioritize cyber risks in customers' code. The service analyzes air-gapped code copies, validates vulnerabilities, and accelerates remediation. According to Anthropic, this helps defenders find attack paths before attackers. Rubrik aims to scale vulnerability detection faster than traditional tools. The service is now accepting select design partners for a private preview.

$PANWMed

Wedbush Names CrowdStrike and Palo Alto Networks AI Cybersecurity Winners

Wedbush initiated coverage of cybersecurity firms, rating Palo Alto Networks (PANW) and Rubrik (RBRK) Outperform, along with CrowdStrike (CRWD) and Datadog (DDOG). Analyst Steven Wahrhaftig noted a shift toward broader security platforms, driven by AI and other industry changes. Tenable (TENB) was rated Underperform, while several others received Neutral ratings.