SEC EDGAR - Form 4 insider activity

IBM $IBM

Technology - 1 filings indexed by Nortis

Nortis signal thesis

Selling activity is leading recent insider flow. Review size, role and filing context.

OM buys - 90d

OM sells - 90d

Routine filings

Cluster filings

$5.76M

Largest trade

70/100

Avg signal score

Filing tape

Recent filings

Last 30d: 0

Open-market SellHigh signal 70/100

filed 2026-08-28

TDOfficer

Thomas Robert David - Senior Vice President - $5.76M

Insiders sell for many reasons (diversification, tax, personal); size and clustering matter more than a single sale.