| $350M | ||
| $217M | ||
| $172M | ||
| $109M | ||
| $107M | ||
| $104M |
Buys | $1,001,702 | 1 | 3 |
Sells | $12,970,895 | 29 | 97 |
| Leach Jacob Steven | President & COO | 1 | $1M | 0 | $0 | $1M |
| Heller Bridgette P | director | 0 | $0 | 4 | $277,673 | $-277,673 |
| Sylvain Jereme M | EVP, Chief Financal Officer | 0 | $0 | 1 | $302,936 | $-302,936 |
| Collins Richard Alexander | director | 0 | $0 | 2 | $389,410 | $-389,410 |
| FOLETTA MARK G | director | 0 | $0 | 3 | $627,180 | $-627,180 |
| Stern Sadie | EVP Chief People & Culture Off | 0 | $0 | 3 | $649,304 | $-649,304 |
| AUGUSTINOS NICHOLAS | director | 0 | $0 | 2 | $679,769 | $-679,769 |
| Coleman Jon | EVP, Chief Commercial Officer | 0 | $0 | 2 | $722,628 | $-722,628 |
| Brown Michael Jon | EVP, Chief Legal Officer | 0 | $0 | 8 | $1.02M | $-1.02M |
| SAYER KEVIN R | Executive Chair | 0 | $0 | 4 | $8.3M | $-8.3M |
DexCom, Inc. is a medical technology company primarily focused on innovating, developing, and marketing continuous glucose monitoring (CGM) systems. Operating across the United States and internationally, the firm provides its solutions for individuals managing diabetes as well as for healthcare practitioners. Its product portfolio features the DexCom G6, a comprehensive CGM system for diabetes management; the Dexcom Real-Time API, enabling authorized third-party developers to integrate live CGM data into their digital health applications; the …
Over the last 12 months, insiders at DexCom, Inc. have bought $1M and sold $12.97M worth of DexCom, Inc. stock.
On average, over the past 5 years, insiders at DexCom, Inc. have bought $1M and sold $24.66M worth of stock each year.
Highest buying activity among insiders over the last 12 months: Leach Jacob Steven (President & COO) — $1M.
The last purchase of 18,200 shares for transaction amount of $1M was made by Leach Jacob Steven (President & COO) on 2025‑11‑10.
| 2026-10-27 | Sale | Stern Sadie | EVP Chief People & Culture Off | 2,565 0.0007% | $78.62 | $201,660 | +4.75% | |
| 2026-10-15 | Sale | Brown Michael Jon | EVP Chief Legal Compliance Off | 1,700 0.0004% | $85.48 | $145,316 | -8.49% | |
| 2026-09-28 | Sale | Stern Sadie | EVP Chief People & Culture Off | 2,565 0.0007% | $86.15 | $220,975 | -2.68% | |
| 2026-09-15 | Sale | Brown Michael Jon | EVP Chief Legal Compliance Off | 1,700 0.0004% | $84.04 | $142,868 | -0.82% | |
| 2026-09-15 | Sale | AUGUSTINOS NICHOLAS | director | 6,539 0.0017% | $84.04 | $549,538 | -0.82% | |
| 2026-09-14 | Sale | AUGUSTINOS NICHOLAS | director | 1,550 0.0004% | $84.02 | $130,231 | +1.36% | |
| 2026-09-10 | Sale | Sylvain Jereme M | EVP, Chief Financal Officer | 3,638 0.0009% | $83.27 | $302,936 | +1.23% | |
| 2026-08-27 | Sale | Stern Sadie | EVP Chief People & Culture Off | 2,565 0.0007% | $88.37 | $226,669 | -3.77% | |
| 2026-08-20 | Sale | SAYER KEVIN R | Executive Chair | 26,756 0.007% | $90.01 | $2.41M | -4.53% | |
| 2026-08-14 | Sale | Brown Michael Jon | EVP Chief Legal Compliance Off | 1,700 0.0005% | $91.93 | $156,281 | -3.77% | |
| 2026-08-12 | Sale | Heller Bridgette P | director | 1,012 0.0003% | $88.29 | $89,349 | -4.70% | |
| 2026-08-03 | Sale | FOLETTA MARK G | director | 2,000 0.0005% | $85.32 | $170,640 | -0.79% | |
| 2026-07-31 | Sale | FOLETTA MARK G | director | 2,000 0.0005% | $80.00 | $160,000 | +3.81% | |
| 2026-07-20 | Sale | SAYER KEVIN R | Executive Chair | 26,756 0.007% | $76.32 | $2.04M | +13.67% | |
| 2026-07-15 | Sale | Brown Michael Jon | EVP Chief Legal Compliance Off | 1,700 0.0005% | $74.42 | $126,514 | +18.18% | |
| 2026-07-06 | Sale | SAYER KEVIN R | Executive Chair | 26,756 0.0069% | $72.00 | $1.93M | +17.52% | |
| 2026-06-15 | Sale | Brown Michael Jon | EVP Chief Legal Compliance Off | 1,700 0.0004% | $75.55 | $128,435 | +13.66% | |
| 2026-06-15 | Sale | FOLETTA MARK G | director | 4,000 0.001% | $74.13 | $296,540 | +13.66% | |
| 2026-06-04 | Sale | Coleman Jon | EVP, Chief Commercial Officer | 4,911 0.0013% | $74.13 | $364,052 | +14.99% | |
| 2026-06-03 | Sale | Coleman Jon | EVP, Chief Commercial Officer | 4,912 0.0013% | $73.00 | $358,576 | +14.69% |
| Leach Jacob Steven | President & COO | 331697 0.0889% | $27.52M | 1 | 27 | |
| NELSON GLEN D | director | 170654 0.0458% | $14.16M | 1 | 0 | +17.09% |
| Pacelli Steven Robert | EVP Managing Director Dexcom V | 124775 0.0335% | $10.35M | 1 | 133 | +177.27% |
| LUCAS DONALD L | director | 69076 0.0185% | $5.73M | 1 | 2 | +17.09% |
| LORD JONATHAN T MD | director | 52820 0.0142% | $4.38M | 2 | 8 | +22.26% |
| ALTMAN STEVEN R | director | 53132 0.0142% | $4.41M | 2 | 19 | +71.2% |
| GREGG TERRANCE H | Executive Chairman | 50882 0.0136% | $4.22M | 11 | 137 | +96.5% |
| MOY JEFFREY | EVP Operations | 31397 0.0084% | $2.61M | 1 | 48 | +177.27% |
| GRAHAM CLAUDIA | VP Marketing | 18741 0.005% | $1.55M | 3 | 0 | +194.16% |
| SKYLER JAY S | director | 13968 0.0037% | $1.16M | 5 | 20 | +42.07% |
| VALDES JORGE A | CTO | 10442 0.0028% | $866,372.74 | 7 | 56 | +83.48% |
| ROPER JESS | SVP, CFO | 8452 0.0023% | $701,262.44 | 1 | 41 | +227.27% |
| Balo Andrew K | * | 7553 0.002% | $626,672.41 | 1 | 102 | +227.27% |
| DOORDAN MARTIN | director | 6000 0.0016% | $497,820.00 | 3 | 0 | +18.03% |
| GERHARDSSON PETER | VP, Int'l Bus. Dev. | 3387 0.0009% | $281,019.39 | 1 | 0 | +17.57% |
| Lucas Donald A | director | 0 0% | $0 | 1 | 4 | +18.03% |
| Increased Positions | 521 | +51.28% | 62M | +17.08% |
| Decreased Positions | 458 | -45.08% | 60M | -16.5% |
| New Positions | 164 | New | 12M | New |
| Sold Out Positions | 137 | Sold Out | 16M | Sold Out |
| Total Postitions | 1,079 | +6.2% | 366M | +0.58% |
| Vanguard Group Inc | $3.29M | 12.68% | 49.46M | +1M | +2.35% | 2025-09-30 |
| Blackrock, Inc. | $2.58M | 9.95% | 38.82M | -210,253 | -0.54% | 2025-09-30 |
| State Street Corp | $1.12M | 4.32% | 16.86M | -2,965 | -0.02% | 2025-09-30 |
| Baillie Gifford & Co | $1.06M | 4.07% | 15.88M | -823,027 | -4.93% | 2025-09-30 |
| Geode Capital Management, Llc | $729,529.00 | 2.81% | 10.96M | +197,416 | +1.83% | 2025-09-30 |
| Jennison Associates Llc | $671,413.00 | 2.59% | 10.09M | -1M | -12.39% | 2025-09-30 |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Ame | $497,888.00 | 1.92% | 7.48M | -2M | -18.05% | 2025-09-30 |
| Citadel Advisors Llc | $451,041.00 | 1.74% | 6.78M | +5M | +395.24% | 2025-09-30 |
| Nuveen, Llc | $422,095.00 | 1.63% | 6.34M | -1M | -16.19% | 2025-09-30 |
| Jpmorgan Chase & Co | $413,463.00 | 1.59% | 6.21M | +59,165 | +0.96% | 2025-09-30 |