S

SEC EDGAR - Form 4 insider activity

Si-Bone, Inc. $SIBN

Tracked equity - 3 filings indexed by Nortis

Nortis signal thesis

Cluster activity detected. Review whether the filings are open-market trades or routine compensation events.

0

OM buys - 90d

2

OM sells - 90d

1

Routine filings

3

Cluster filings

$93.6K

Largest trade

48/100

Avg signal score

Filing tape

Recent filings

Last 30d: 3
Open-market SellCLUSTERNotable 65/100
filed 2026-10-06
PAOfficer

PISETSKY MICHAEL A. - SVP, Ops & Adm/Chief Legal Ofr - $23.7K

Insiders sell for many reasons (diversification, tax, personal); size and clustering matter more than a single sale. It is part of a cluster (3+ insiders within 7 days), which is generally more notable than an isolated filing.

View source filing
Open-market SellCLUSTERNotable 65/100
filed 2026-10-06
MAOfficer

Maheshwari Anshul - Chief Op & Financial Officer - $28.3K

Insiders sell for many reasons (diversification, tax, personal); size and clustering matter more than a single sale. It is part of a cluster (3+ insiders within 7 days), which is generally more notable than an isolated filing.

View source filing
Option ExerciseCLUSTERRoutine 15/100
filed 2026-10-05
DWBoard

DUNN JEFFREY W - Director - $93.6K

Option exercises are often compensation mechanics rather than a direct market view; what happens to the shares next matters more. It is part of a cluster (3+ insiders within 7 days), which is generally more notable than an isolated filing.

View source filing