SEC Form 4 · Updated Daily
DXCM
— DEXCOM, INC. OwnershipInsider and institutional ownership derived from SEC Form 4 filings. Click any owner to see their holdings across every company they’ve filed on, and how their position has changed over time.
Current Reporting Owners
| Owner | Role | Shares Owned | As Of | Last Activity |
|---|---|---|---|---|
| Leach Jacob Steven | Director | 418,908 | 2026-08-22 | F |
| SAYER KEVIN R | Director · Officer | 302,214 | 2026-08-20 | S |
| Sylvain Jereme M | Officer | 150,390 | 2026-08-22 | F |
| Stern Sadie | Officer | 126,043 | 2026-08-27 | S |
| Brown Michael Jon | Officer | 101,502 | 2026-08-22 | F |
| Coleman Jon | Officer | 95,450 | 2026-06-04 | S |
| FOLETTA MARK G | Director | 48,852 | 2026-08-03 | S |
| AUGUSTINOS NICHOLAS | Director | 37,382 | 2026-08-12 | G |
| Heller Bridgette P | Director | 29,570 | 2026-08-12 | S |
| Malady Kyle | Officer | 28,242 | 2026-05-28 | A |
| Driscoll Rimma | Director | 17,319 | 2026-05-28 | A |
| Ashley Euan A. | Director | 12,731 | 2026-05-28 | A |
| GALA RENEE D | Officer | 12,486 | 2026-05-28 | A |
| Osterloh Albert Frederick IV | Director | 8,691 | 2026-05-28 | A |
| Boehnlein Glenn S | Director | 5,841 | 2026-09-10 | A |
| Collins Richard Alexander | Director | 5,605 | 2026-05-28 | A |
| ALTMAN STEVEN R | Director | 5,565 | 2026-05-28 | A |
Recent Filings
| Date | Owner | Activity | Shares | Price | Owned After |
|---|---|---|---|---|---|
| 2026-09-10 | Boehnlein Glenn S | Grant / award | 5,841 | $0.00 | 5,841 |
| 2026-08-27 | Stern Sadie | Open-market sale | 2,565 | $88.37 | 126,043 |
| 2026-08-22 | Stern Sadie | Tax withholding | 1,451 | $92.34 | 128,608 |
| 2026-08-22 | Brown Michael Jon | Tax withholding | 1,451 | $92.34 | 101,502 |
| 2026-08-22 | Sylvain Jereme M | Tax withholding | 1,451 | $92.34 | 150,390 |
| 2026-08-22 | Leach Jacob Steven | Tax withholding | 1,451 | $92.34 | 418,908 |
| 2026-08-20 | SAYER KEVIN R | Open-market sale | 97 | $91.41 | 302,214 |
| 2026-08-20 | SAYER KEVIN R | Open-market sale | 7,351 | $90.78 | 302,311 |
| 2026-08-20 | SAYER KEVIN R | Open-market sale | 19,308 | $89.71 | 309,662 |
| 2026-08-14 | Brown Michael Jon | Open-market sale | 1,700 | $91.93 | 102,953 |
| 2026-08-12 | Heller Bridgette P | Open-market sale | 1,012 | $88.29 | 29,570 |
| 2026-08-12 | AUGUSTINOS NICHOLAS | Gift | 1,075 | $0.00 | 37,382 |
| 2026-08-03 | FOLETTA MARK G | Open-market sale | 2,000 | $85.32 | 48,852 |
| 2026-07-31 | FOLETTA MARK G | Open-market sale | 2,000 | $80.00 | 50,852 |
| 2026-07-20 | SAYER KEVIN R | Open-market sale | 26,756 | $76.32 | 328,970 |
| 2026-07-15 | Brown Michael Jon | Open-market sale | 1,700 | $74.42 | 104,653 |
| 2026-07-06 | SAYER KEVIN R | Open-market sale | 26,756 | $72.00 | 355,726 |
| 2026-06-15 | FOLETTA MARK G | Open-market sale | 199 | $74.82 | 52,852 |
| 2026-06-15 | FOLETTA MARK G | Open-market sale | 3,801 | $74.10 | 53,051 |
| 2026-06-15 | Brown Michael Jon | Open-market sale | 1,700 | $75.55 | 106,353 |
| 2026-06-04 | Coleman Jon | Open-market sale | 4,911 | $74.13 | 95,450 |
| 2026-06-03 | Coleman Jon | Open-market sale | 4,912 | $73.00 | 100,361 |
| 2026-05-28 | GALA RENEE D | Grant / award | 5,605 | $0.00 | 12,486 |
| 2026-05-28 | Collins Richard Alexander | Grant / award | 5,605 | $0.00 | 5,605 |
| 2026-05-28 | Ashley Euan A. | Grant / award | 5,565 | $0.00 | 12,731 |
| 2026-05-28 | Driscoll Rimma | Grant / award | 5,605 | $0.00 | 17,319 |
| 2026-05-28 | Osterloh Albert Frederick IV | Grant / award | 1,630 | $0.00 | 8,691 |
| 2026-05-28 | Heller Bridgette P | Grant / award | 5,575 | $0.00 | 30,582 |
| 2026-05-28 | FOLETTA MARK G | Grant / award | 6,331 | $0.00 | 6,331 |
| 2026-05-28 | AUGUSTINOS NICHOLAS | Grant / award | 5,575 | $0.00 | 5,575 |
| 2026-05-28 | Malady Kyle | Grant / award | 5,575 | $0.00 | 28,242 |
| 2026-05-28 | ALTMAN STEVEN R | Grant / award | 5,565 | $0.00 | 5,565 |
| 2026-05-22 | Coleman Jon | Tax withholding | 7,362 | $71.90 | 105,273 |
| 2026-05-22 | Stern Sadie | Tax withholding | 1,451 | $71.90 | 130,059 |
| 2026-05-22 | Sylvain Jereme M | Tax withholding | 1,451 | $71.90 | 151,841 |
| 2026-05-22 | Brown Michael Jon | Tax withholding | 1,451 | $71.90 | 108,053 |
| 2026-05-22 | Leach Jacob Steven | Tax withholding | 1,451 | $71.90 | 420,359 |
| 2026-05-21 | SAYER KEVIN R | Open-market sale | 26,759 | $72.00 | 382,482 |
| 2026-05-15 | Brown Michael Jon | Open-market sale | 1,700 | $59.91 | 109,504 |
| 2026-05-12 | Heller Bridgette P | Open-market sale | 1,012 | $60.01 | 25,007 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.