Richard Alexander Collins sold $218k of DXCM
director at DEXCOM INC. 3,948 shares at an average of $55.17, traded Nov 10, 2025, filed Nov 10, 2025.
Score components
- +15RoleDirector
- +12Trade size$218k at market
- 0Share of holdings soldSold 9.4% of holdings
- +8Cluster2 insiders selling within 14 days
- -2010b5-1 planPre-scheduled under a 10b5-1 plan
What happened after comparable sells
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
Price around the trade, and since
From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™
Rows in this filing
Every transaction in Form 4 0001093557-25-000283, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Nov 10, 2025 | SOpen-market sale Common Stockindirect: by Trust10b5-1 | -3,948 | $55.17 | $218k | 37,994 | Nov 10, 2025 |
Related signals
Other insiders at DEXCOM INC and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 22Weak | DEXCOM INC | Sadie Stern EVP Chief People & Culture Off | $221k 2,565 shares | -2% | |
| 36Weak | DEXCOM INC | Nicholas Augustinos director | $680k 8,089 shares | -22% | |
| 21Weak | DEXCOM INC | Michael Jon Brown EVP Chief Legal Compliance Off | $143k 1,700 shares | -2% | |
| 31Weak | DEXCOM INC | Jereme M Sylvain EVP, Chief Financal Officer | $303k 3,638 shares | -2% | |
| 5Weak | DEXCOM INC | Michael Jon Brown EVP, Chief Legal Officer | $110k 1,700 shares | -1% | |
| 3Weak | DEXCOM INC | Bridgette P Heller director | $69k 1,012 shares | -4% | |
| 14Weak | DEXCOM INC | Richard Alexander Collins director | $172k 2,906 shares | -8% | |
| 10Weak | DEXCOM INC | Bridgette P Heller director | $59k 1,012 shares | -4% | |
| 66Notable | DXCMbuy DEXCOM INC | Jacob Steven Leach President & COO | $1.0M 18,200 shares | +6% | |
| 17Weak | DEXCOM INC | Kyle Malady director | $54k 667 shares | -3% |
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.