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Michael Jon Brown

CIK 1899922 · EVP Chief Legal Compliance Off · last filed 2026-07-16

Michael Jon Brown is an EVP Chief Legal Compliance Off who has filed 43 SEC Form 4 insider transactions across 1 company since 2022. The most recent filing shows the insider sold $126.5K of DXCM on Jul 16, 2026. Across all open-market trades the lifetime net is −$5.2M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $9.6M across reported positions.

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

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Disclosed Exposure

$9.57M

Companies

1

Total Filings

43

Lifetime Open-Market Net

-$5.16M

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
DXCM EVP Chief Legal Compliance Off 104,653 $91.48 $9.57M -$5.16M 27 2026-07-16

Recent Filings

43 filings
Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
Filed Symbol Action Net Shares Net $ Link
2026-07-16 DXCM Sell (S) −1,700 -$126.5K EDGAR
2026-07-15 DXCM Notice (144) −1,700 -$126.5K EDGAR
2026-06-17 DXCM Sell (S) −1,700 -$128.4K EDGAR
2026-06-15 DXCM Notice (144) −1,700 -$128.4K EDGAR
2026-05-27 DXCM Tax (F) −1,451 -$104.3K EDGAR
2026-05-19 DXCM Sell (S) −1,700 -$101.8K EDGAR
2026-05-15 DXCM Notice (144) −1,700 -$101.8K EDGAR
2026-04-16 DXCM Sell (S) −1,700 -$107.2K EDGAR
2026-04-15 DXCM Notice (144) −1,700 -$107.2K EDGAR
2026-03-18 DXCM Sell (S) −1,700 -$110.2K EDGAR
Showing 1–10 of 43
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Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.