SEC EDGAR - Form 4 insider activity

Dexcom Inc $DXCM

Tracked equity - 2 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

$221.0K

Largest trade

56/100

Avg signal score

Filing tape

Recent filings

Last 30d: 2

Open-market SellNotable 56/100

filed 2026-10-19

BJOfficer

Brown Michael Jon - EVP Chief Legal Compliance Off - $145.3K

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

Open-market SellNotable 56/100

filed 2026-09-30

SSOfficer

Stern Sadie - EVP Chief People & Culture Off - $221.0K

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