PISETSKY MICHAEL A. sold $57K of SIBN

PISETSKY MICHAEL A. (SVP, Ops & Adm/Chief Legal Ofr) sold 3,133 shares of SI-BONE, Inc. (SIBN) at an average of $18.17 ($18.14–$18.20) across 3 trades on 2026-10-02.

Original reporting
SEC EDGAR · PISETSKY MICHAEL A.
Published Oct 6, 2026, 11:25 PM UTC
Analysis
AlphAI AI DeskAI-generated
Added to AlphAI Oct 6, 2026, 11:27 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
$SIBN
Bearish
medium confidence
Mentioned
$SIBN
Relevance
3/10
AlphAI data visualization · based on SEC EDGAR
Decision brief

The 30-second read

$SIBNBearishLow
01

Why it matters

The disclosed sale is modest and unlikely to move the stock significantly.

02

Market read

Minor insider transaction with limited market impact.

03

What to watch

Insider holds 270,517 shares after the sale, indicating continued confidence.

Relevance 3/10Novelty 3/10Timing: post-filing today

Background

SEC Form 4 filing reporting an insider's open-market sale of SIBN shares.

Company-level read

Ticker impact

$SIBNBearishMedium confidence
Context

Form 4 disclosed insider Michael Pisesky sold ~57K of SIBN shares at $18.14 each.

Expected impact

likely modest pressure as the market prices the insider sell.

Evidence & confidence

The sale is small relative to float and typical for diversification; impact is limited.

Market effects

none

none

none

Counterpoint

The sale could be routine and not indicative of future performance.

Key entities

  • Michael A. Pisesky

    SVP, Ops & Adm/Chief Legal Officer at SI-BONE, Inc.

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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