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 |
|---|---|---|---|---|
| WARBURG PINCUS LLC | 10%+ Owner · Director | 2,295,270 | 2006-05-02 | S |
| WARBURG PINCUS & CO. | Director | 2,295,270 | 2006-05-02 | S |
| Warburg Pincus Private Equity VIII, L.P. | Director | 2,295,270 | 2006-05-02 | S |
| Warburg Pincus Partners LLC | 10%+ Owner · Director | 2,295,270 | 2006-05-02 | S |
| Split Rock Partners LLC | 10%+ Owner | 730,422 | 2006-05-02 | S |
| ST PAUL TRAVELERS COMPANIES INC | 10%+ Owner | 730,422 | 2006-05-02 | S |
| ST PAUL FIRE & MARINE INSURANCE CO | 10%+ Owner | 730,422 | 2006-05-02 | S |
| Leach Jacob Steven | Director | 418,908 | 2026-08-22 | F |
| TOPOL ERIC | Director | 380,545 | 2025-05-08 | G |
| SAYER KEVIN R | Director · Officer | 309,662 | 2026-08-20 | S |
| Abbey Donald | Director | 216,088 | 2023-03-10 | D |
| NELSON GLEN D | Director | 170,654 | 2008-03-14 | P |
| Sylvain Jereme M | Officer | 146,828 | 2026-09-10 | S |
| Rasdal Andrew P | Officer | 127,944 | 2006-05-02 | M |
| Pacelli Steven Robert | Officer | 124,775 | 2023-11-24 | S |
| Stern Sadie | Officer | 123,478 | 2026-09-28 | S |
| Brauker James H | Officer | 102,440 | 2008-03-24 | — |
| Coleman Jon | Officer | 100,361 | 2026-06-03 | S |
| Brown Michael Jon | Officer | 98,185 | 2026-10-15 | S |
| LISTER JOHN | Officer | 96,732 | 2017-03-09 | M |
| LUCAS DONALD L | Director | 69,076 | 2010-03-15 | S |
| Lawver Teri L | Officer | 66,641 | 2024-03-12 | S |
| SKYLER JAY S | Director | 63,348 | 2023-05-18 | G |
| VALDES JORGE A | Officer | 60,500 | 2017-03-10 | J |
| Balo Andrew K | Officer | 59,303 | 2023-03-10 | D |
| Regan Barry J. | Officer | 58,469 | 2023-12-18 | D |
| GREGG TERRANCE H | Director · Officer | 55,282 | 2018-07-16 | S |
| LORD JONATHAN T MD | Director | 52,820 | 2016-09-01 | S |
| FOLETTA MARK G | Director | 50,852 | 2026-07-31 | S |
| Flynn Paul R | Officer | 48,949 | 2023-12-18 | D |
| Selvaraj Shelly Ramasamy | Officer | 48,453 | 2023-09-11 | D |
| Naganathan Girish | Officer | 47,725 | 2023-11-09 | S |
| ACE HEATHER S | Officer | 44,600 | 2020-03-11 | S |
| Dolan Matthew Vincent | Officer | 43,227 | 2025-01-28 | A |
| DOORDAN MARTIN | Director | 39,633 | 2012-06-01 | A |
| MOY JEFFREY | Officer | 38,364 | 2020-09-09 | J |
| AUGUSTINOS NICHOLAS | Director | 35,832 | 2026-09-14 | S |
| Blackford Quentin S. | Director | 30,303 | 2021-09-08 | S |
| Heller Bridgette P | Director | 29,570 | 2026-08-12 | S |
| Malady Kyle | Officer | 28,242 | 2026-05-28 | A |
| Sun Kevin M | Officer | 26,683 | 2017-04-01 | — |
| Kemper Steven J | Officer | 26,255 | 2007-05-15 | A |
| KAHN BARBARA | Director | 22,575 | 2024-05-18 | G |
| CARNEY SEAN | Director | 20,285 | 2008-05-19 | A |
| GRAHAM CLAUDIA | Officer | 18,741 | 2009-05-15 | P |
| Dahut Karen M | Director | 17,779 | 2025-05-08 | G |
| Driscoll Rimma | Officer | 17,319 | 2026-05-28 | A |
| Lucas Donald A | Director | 16,448 | 2010-05-19 | A |
| Murphy Patrick Michael | Officer | 16,266 | 2021-09-09 | S |
| Shrishrimal Sumi | Officer | 15,146 | 2022-03-08 | A |
| Patterson Chad | Officer | 13,675 | 2022-05-09 | S |
| Ashley Euan A. | Director | 12,731 | 2026-05-28 | A |
| GALA RENEE D | Director · Officer | 12,486 | 2026-05-28 | A |
| Brister Mark | Officer | 10,967 | 2006-05-02 | S |
| Osterloh Albert Frederick IV | Director | 8,691 | 2026-05-28 | A |
| ROPER JESS | Officer | 8,452 | 2017-03-22 | S |
| DOUBLEDAY RICHARD | Officer | 7,745 | 2021-03-23 | S |
| Riolo John | Officer | 7,500 | 2007-07-30 | — |
| 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 |
| BLICKENSTAFF KIM D | Director | 4,104 | 2007-05-23 | A |
| GERHARDSSON PETER | Officer | 3,387 | 2010-11-16 | P |
| JOHNSON LAURA | Officer | 1,875 | 2008-09-25 | — |
| ANDREWS TAE | Officer | 0 | 2006-04-03 | — |
Recent Filings
| Date | Owner | Activity | Shares | Price | Owned After |
|---|---|---|---|---|---|
| 2026-10-15 | Brown Michael Jon | Open-market sale | 1,700 | $85.48 | 98,185 |
| 2026-09-28 | Stern Sadie | Open-market sale | 2,565 | $86.15 | 123,478 |
| 2026-09-15 | Brown Michael Jon | Open-market sale | 1,700 | $84.04 | 99,885 |
| 2026-09-15 | AUGUSTINOS NICHOLAS | Open-market sale | 6,539 | $84.04 | 29,293 |
| 2026-09-14 | AUGUSTINOS NICHOLAS | Open-market sale | 1,550 | $84.02 | 35,832 |
| 2026-09-10 | Boehnlein Glenn S | — | — | — | 42 |
| 2026-09-10 | Sylvain Jereme M | Open-market sale | 3,638 | $83.27 | 146,828 |
| 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 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.