| $385M | ||
| $337M | ||
| $100M | ||
| $87M | ||
| $82M | ||
| $62M |
Buys | $1,001,702 | 1 | 3 |
Sells | $14,113,838 | 34 | 97 |
| Leach Jacob Steven | EVP, Chief Operating Officer | 1 | $1M | 3 | $1.28M | $-275,092 |
| Malady Kyle | director | 0 | $0 | 1 | $53,934 | $-53,934 |
| Dolan Matthew Vincent | EVP, Strategy & Corporate Dev | 0 | $0 | 1 | $102,820 | $-102,820 |
| Heller Bridgette P | director | 0 | $0 | 3 | $160,393 | $-160,393 |
| Collins Richard Alexander | director | 0 | $0 | 2 | $389,410 | $-389,410 |
| AUGUSTINOS NICHOLAS | director | 0 | $0 | 2 | $517,906 | $-517,906 |
| FOLETTA MARK G | director | 0 | $0 | 3 | $685,724 | $-685,724 |
| Brown Michael Jon | EVP, Chief Legal Officer | 0 | $0 | 5 | $1.88M | $-1.88M |
| Stern Sadie | EVP, Chief HR Officer | 0 | $0 | 7 | $1.9M | $-1.9M |
| Sylvain Jereme M | EVP, Chief Financal Officer | 0 | $0 | 5 | $1.96M | $-1.96M |
| SAYER KEVIN R | Chairman, CEO & President | 0 | $0 | 2 | $5.19M | $-5.19M |
DexCom, Inc., a medical device company, focuses on the design, development, and commercialization of continuous glucose monitoring (CGM) systems in the United States and internationally. The company provides its systems for use by people with diabetes, as well as for use by healthcare providers. Its products include DexCom G6, an integrated CGM system for diabetes management; Dexcom Real-Time API, which enables invited third-party developers to integrate real-time CGM data into their digital health applications and devices; Dexcom ONE, that is designed to replace finger stick blood glucose testing for diabetes treatment decisions; and Dexcom Share, a remote monitoring system. The company's products candidature comprises Dexcom G7, a next generation G7 CGM system. DexCom, Inc. has a collaboration and license agreement with Verily Life Sciences LLC and Verily Ireland Limited to develop blood-based or interstitial glucose monitoring products. The company markets its products directly to endocrinologists, physicians, and diabetes educators. DexCom, Inc. was incorporated in 1999 and is headquartered in San Diego, California.
Over the last 12 months, insiders at DexCom, Inc. have bought $1M and sold $14.11M worth of DexCom, Inc. stock.
On average, over the past 5 years, insiders at DexCom, Inc. have bought $1M and sold $47.36M worth of stock each year.
Highest buying activity among insiders over the last 12 months: Leach Jacob Steven (EVP, Chief Operating Officer) — $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.
| 2025-11-14 | Sale | Collins Richard Alexander | director | 2,906 0.0007% | $59.05 | $171,599 | +5.47% | |
| 2025-11-12 | Sale | Heller Bridgette P | director | 1,012 0.0003% | $58.07 | $58,767 | +4.04% | |
| 2025-11-10 | Sale | Collins Richard Alexander | director | 3,948 0.001% | $55.17 | $217,811 | +11.76% | |
| 2025-11-10 | Leach Jacob Steven | President & COO | 18,200 0.0047% | $55.04 | $1M | +11.76% | ||
| 2025-09-05 | Sale | Malady Kyle | director | 667 0.0002% | $80.86 | $53,934 | -17.59% | |
| 2025-09-04 | Sale | Stern Sadie | EVP, Chief HR Officer | 1,466 0.0004% | $80.00 | $117,280 | -17.83% | |
| 2025-09-02 | Sale | Sylvain Jereme M | EVP, Chief Financal Officer | 4,824 0.0012% | $74.17 | $357,796 | -10.58% | |
| 2025-08-15 | Sale | Brown Michael Jon | EVP, Chief Legal Officer | 500 0.0001% | $80.29 | $40,145 | -16.78% | |
| 2025-08-15 | Sale | FOLETTA MARK G | director | 2,750 0.0007% | $81.06 | $222,903 | -16.78% | |
| 2025-07-28 | Sale | Stern Sadie | EVP, Chief HR Officer | 1,466 0.0004% | $88.99 | $130,459 | -23.77% | |
| 2025-07-15 | Sale | Brown Michael Jon | EVP, Chief Legal Officer | 500 0.0001% | $86.03 | $43,015 | -17.73% | |
| 2025-07-15 | Sale | FOLETTA MARK G | director | 2,750 0.0007% | $85.17 | $234,217 | -17.73% | |
| 2025-06-26 | Sale | Stern Sadie | EVP, Chief HR Officer | 1,466 0.0004% | $85.06 | $124,698 | -11.71% | |
| 2025-06-16 | Sale | Brown Michael Jon | EVP, Chief Legal Officer | 500 0.0001% | $82.80 | $41,400 | -8.82% | |
| 2025-06-16 | Sale | FOLETTA MARK G | director | 2,750 0.0007% | $83.13 | $228,605 | -8.82% | |
| 2025-06-16 | Sale | AUGUSTINOS NICHOLAS | director | 3,672 0.0009% | $82.80 | $304,042 | -8.82% | |
| 2025-06-13 | Sale | AUGUSTINOS NICHOLAS | director | 2,618 0.0007% | $81.69 | $213,864 | -7.57% | |
| 2025-05-27 | Sale | Stern Sadie | EVP, Chief HR Officer | 6,184 0.0016% | $85.11 | $526,318 | -10.56% | |
| 2025-05-23 | Sale | Brown Michael Jon | EVP, Chief Legal Officer | 10,000 0.0025% | $84.28 | $842,849 | -9.62% | |
| 2025-03-17 | Sale | Heller Bridgette P | director | 352 <0.0001% | $70.33 | $24,756 | +5.93% |
| SAYER KEVIN R | Chairman, CEO & President | 372029 0.0951% | $24.36M | 0 | 80 | |
| Leach Jacob Steven | President & COO | 331697 0.0848% | $21.72M | 1 | 27 | |
| Sylvain Jereme M | EVP, Chief Financal Officer | 118657 0.0303% | $7.77M | 0 | 28 | |
| Stern Sadie | EVP, Chief HR Officer | 105223 0.0269% | $6.89M | 0 | 23 | |
| Brown Michael Jon | EVP, Chief Legal Officer | 94102 0.0241% | $6.16M | 0 | 14 | |
| FOLETTA MARK G | director | 51121 0.0131% | $3.35M | 0 | 22 | |
| Dolan Matthew Vincent | EVP, Strategy & Corporate Dev | 42044 0.0107% | $2.75M | 0 | 11 | |
| Collins Richard Alexander | director | 35088 0.009% | $2.3M | 0 | 4 | |
| AUGUSTINOS NICHOLAS | director | 33411 0.0085% | $2.19M | 0 | 19 | |
| Heller Bridgette P | director | 27031 0.0069% | $1.77M | 0 | 7 | |
| Malady Kyle | director | 22667 0.0058% | $1.48M | 0 | 1 | |
| WARBURG PINCUS PRIVATE EQUITY VIII L P | 10 percent owner | 2295270 0.5867% | $150.32M | 0 | 1 | |
| CARNEY SEAN | director | 2295270 0.5867% | $150.32M | 0 | 1 | |
| YOUNG ERIC A | 10 percent owner | 2040635 0.5216% | $133.64M | 0 | 1 | |
| Canaan Equity Partners II LLC | 10 percent owner | 2040635 0.5216% | $133.64M | 0 | 1 | |
| NELSON GLEN D | director | 170654 0.0436% | $11.18M | 1 | 0 | +17.09% |
| Pacelli Steven Robert | EVP Managing Director Dexcom V | 124775 0.0319% | $8.17M | 1 | 133 | +177.27% |
| LISTER JOHN | General Manager, EMEA | 93732 0.024% | $6.14M | 0 | 41 | |
| TOPOL ERIC | director | 84562 0.0216% | $5.54M | 0 | 4 | |
| LUCAS DONALD L | director | 69076 0.0177% | $4.52M | 1 | 2 | +17.09% |
| Lawver Teri L | EVP Chief Commercial Officer | 66641 0.017% | $4.36M | 0 | 1 | |
| Regan Barry J. | EVP Operations | 64250 0.0164% | $4.21M | 0 | 8 | |
| ALTMAN STEVEN R | director | 53132 0.0136% | $3.48M | 2 | 19 | +71.2% |
| LORD JONATHAN T MD | director | 52820 0.0135% | $3.46M | 2 | 8 | +22.26% |
| Flynn Paul R | EVP Global Revenue | 52112 0.0133% | $3.41M | 0 | 6 | |
| GREGG TERRANCE H | Executive Chairman | 50882 0.013% | $3.33M | 11 | 137 | +96.5% |
| Selvaraj Shelly Ramasamy | SVP Chief Information Officer | 50390 0.0129% | $3.3M | 0 | 19 | |
| Abbey Donald | EVP Quality and Regulatory Aff | 48674 0.0124% | $3.19M | 0 | 11 | |
| Naganathan Girish | EVP Chief Technology Officer | 47725 0.0122% | $3.13M | 0 | 1 | |
| ACE HEATHER S | SVP Human Resources | 38584 0.0099% | $2.53M | 0 | 8 | |
| MOY JEFFREY | EVP Operations | 31397 0.008% | $2.06M | 1 | 48 | +177.27% |
| Kemper Steven J | Chief Financial Officer | 25696 0.0066% | $1.68M | 0 | 1 | |
| Blackford Quentin S. | Chief Operating Officer | 19280 0.0049% | $1.26M | 0 | 16 | |
| GRAHAM CLAUDIA | VP Marketing | 18741 0.0048% | $1.23M | 3 | 0 | +194.16% |
| Murphy Patrick Michael | EVP, Chief Legal Officer | 16254 0.0042% | $1.06M | 0 | 36 | |
| Brauker James H | VP Research & Development | 15950 0.0041% | $1.04M | 0 | 1 | |
| SKYLER JAY S | director | 13968 0.0036% | $914,764.32 | 5 | 20 | +42.07% |
| Patterson Chad | EVP Global Marketing | 13675 0.0035% | $895,575.75 | 0 | 7 | |
| Shrishrimal Sumi | SVP Chief Risk Officer | 12234 0.0031% | $801,204.66 | 0 | 4 | |
| Brister Mark | VP, Advanced Development Team | 10967 0.0028% | $718,228.83 | 0 | 1 | |
| VALDES JORGE A | CTO | 10442 0.0027% | $683,846.58 | 7 | 56 | +83.48% |
| ROPER JESS | SVP, CFO | 8452 0.0022% | $553,521.48 | 1 | 41 | +227.27% |
| Balo Andrew K | * | 7553 0.0019% | $494,645.97 | 1 | 102 | +227.27% |
| DOUBLEDAY RICHARD | EVP Chief Commercial Officer | 6654 0.0017% | $435,770.46 | 0 | 91 | |
| DOORDAN MARTIN | director | 6000 0.0015% | $392,940.00 | 3 | 0 | +18.03% |
| GERHARDSSON PETER | VP, Int'l Bus. Dev. | 3387 0.0009% | $221,814.63 | 1 | 0 | +17.57% |
| Rasdal Andrew P | President & CEO | 2944 0.0008% | $192,802.56 | 0 | 1 | |
| KAHN BARBARA | director | 3000 0.0008% | $196,470.00 | 0 | 15 | |
| ST PAUL TRAVELERS COMPANIES INC | 10 percent owner | 0 0% | $0 | 0 | 3 | |
| BLICKENSTAFF KIM D | director | 0 0% | $0 | 0 | 6 | |
| Lucas Donald A | director | 0 0% | $0 | 1 | 4 | +18.03% |
| Increased Positions | 457 | +42.31% | 48M | +12.93% |
| Decreased Positions | 479 | -44.35% | 43M | -11.64% |
| New Positions | 112 | New | 11M | New |
| Sold Out Positions | 130 | Sold Out | 8M | Sold Out |
| Total Postitions | 1,058 | -2.04% | 375M | +1.29% |
| Vanguard Group Inc | $3.14M | 12.68% | 49.46M | +1M | +2.35% | 2025-09-30 |
| Blackrock, Inc. | $2.46M | 9.95% | 38.82M | -210,253 | -0.54% | 2025-09-30 |
| State Street Corp | $1.07M | 4.32% | 16.86M | -2,965 | -0.02% | 2025-09-30 |
| Baillie Gifford & Co | $1.01M | 4.07% | 15.88M | -823,027 | -4.93% | 2025-09-30 |
| Geode Capital Management, Llc | $695,871.00 | 2.81% | 10.96M | +197,416 | +1.83% | 2025-09-30 |
| Jennison Associates Llc | $640,436.00 | 2.59% | 10.09M | -1M | -12.39% | 2025-09-30 |
| Nuveen Asset Management, Llc | $516,552.00 | 2.09% | 8.14M | +52,040 | +0.64% | 2024-12-31 |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Ame | $474,916.00 | 1.92% | 7.48M | -2M | -18.05% | 2025-09-30 |
| Citadel Advisors Llc | $430,231.00 | 1.74% | 6.78M | +5M | +395.24% | 2025-09-30 |
| Nuveen, Llc | $402,620.00 | 1.63% | 6.34M | -1M | -16.19% | 2025-09-30 |