Insider · CIK 0001899922
Michael Jon Brown
officer
Files at DXCM (DEXCOM INC). First filing Mar 14, 2025, latest Sep 16, 2026.
Track record
Not enough history
Fewer than three past buys with six months of prices.
Median 6-month excess
-
after past buys, n = 0
Hit rate
-
past buys that beat the index over 6 months
Open-market trades
0 / 4
$0 bought, $1.9M sold
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
DXCM: DEXCOM INC
DXCMOct 9, 2026 · close 84.11
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 21Weak | DEXCOM INC | $143k 1,700 shares | -2% | - | |
| 16Weak | DEXCOM INC | $41k 500 shares | -1% | +39% from low-9% from high | |
| 26Weak | DEXCOM INC | $843k 10,000 shares | -9% | +41% from low-7% from high | |
| 59Moderate | DEXCOM INC | $915k 13,000 shares | -11% | - |
Transactions
Every row this insider has filed, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Sep 15, 2026 | DXCM DEXCOM INC | SOpen-market sale Common Stock10b5-1 | -1,700 | $84.04 | $143k | 99,885 | 26 d ago |
| Jun 16, 2025 | DXCM DEXCOM INC | SOpen-market sale Common Stock10b5-1 | -500 | $82.80 | $41k | 95,102 | Jun 18, 2025 |
| May 23, 2025 | DXCM DEXCOM INC | SOpen-market sale Common Stock10b5-1 | -10,000 | $84.28 | $843k | 95,602 | May 28, 2025 |
| Mar 12, 2025 | DXCM DEXCOM INC | SOpen-market sale Common Stock | -13,000 | $70.38 | $915k | 105,602 | Mar 14, 2025 |
| Mar 8, 2025 | DXCM DEXCOM INC | AGrant or award Common Stock | +29,922 | $0.00 | $0 | 95,804 | Mar 11, 2025 |
| Mar 8, 2025 | DXCM DEXCOM INC | AGrant or award Common Stock | +22,798 | $0.00 | $0 | 118,602 | Mar 11, 2025 |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.