There have been 50 recent insider transactions recorded for DexCom, Inc. (DXCM), including 10 buys and 31 sells. Total insider buying was valued at $863.14K and total insider selling at $14.62M.
Notable insiders with recent activity include Brown Michael Jon, Sayer Kevin R, Coleman Jon. Insider transactions can provide insights into how company leadership views the stock's valuation and future prospects.
Insider Transactions — DXCM
| Date |
Name |
Role |
Transaction |
Shares |
Avg. Price |
Value |
Shares Owned |
| 2026-03-16 |
Brown Michael Jon |
EVP, Chief Legal Officer |
Informative Sell |
1,700 |
$64.85 |
$110.25K |
112,904 |
| 2026-03-08 |
Sayer Kevin R |
Executive Chair |
Tax Withholding of RSU |
32,498 |
$68.10 |
$2.21M |
409,241 |
| 2026-03-08 |
Coleman Jon |
EVP, Chief Commercial Officer |
RSU Award |
43,897 |
- |
- |
112,635 |
| 2026-03-08 |
Sylvain Jereme M |
EVP, Chief Financal Officer |
Tax Withholding of RSU |
18,950 |
$68.10 |
$1.29M |
153,292 |
| 2026-03-08 |
Leach Jacob Steven |
President, CEO, and Director |
Tax Withholding of RSU |
19,757 |
$68.10 |
$1.35M |
421,810 |
| 2026-03-08 |
Stern Sadie |
EVP, Chief HR Officer |
Tax Withholding of RSU |
17,199 |
$68.10 |
$1.17M |
131,510 |
| 2026-03-08 |
Brown Michael Jon |
EVP, Chief Legal Officer |
Tax Withholding of RSU |
23,325 |
$68.10 |
$1.59M |
114,604 |
| 2026-02-26 |
Osterloh Albert Frederick Iv |
Director |
Unknown |
- |
- |
- |
- |
| 2026-02-26 |
Osterloh Albert Frederick Iv |
Director |
RSU Award |
7,061 |
- |
- |
7,061 |
| 2026-02-12 |
Heller Bridgette P |
Director |
Informative Sell |
1,012 |
$68.01 |
$68.83K |
26,019 |
| 2026-01-29 |
Sayer Kevin R |
Executive Chair |
Tax Withholding of RSU |
34,257 |
$73.36 |
$2.51M |
408,990 |
| 2026-01-29 |
Sylvain Jereme M |
EVP, Chief Financal Officer |
Tax Withholding of RSU |
2,652 |
$73.36 |
$194.55K |
123,207 |
| 2026-01-29 |
Leach Jacob Steven |
President, CEO, and Director |
Tax Withholding of RSU |
3,058 |
$73.36 |
$224.33K |
337,051 |
| 2026-01-29 |
Stern Sadie |
EVP, Chief HR Officer |
Tax Withholding of RSU |
2,656 |
$73.36 |
$194.84K |
109,690 |
| 2026-01-29 |
Brown Michael Jon |
EVP, Chief Legal Officer |
Tax Withholding of RSU |
2,653 |
$73.36 |
$194.62K |
98,655 |
| 2025-11-14 |
Collins Richard Alexander |
Director |
Informative Sell |
2,906 |
$59.05 |
$171.6K |
35,088 |
| 2025-11-12 |
Heller Bridgette P |
Director |
Informative Sell |
1,012 |
$58.07 |
$58.77K |
27,031 |
| 2025-11-10 |
Leach Jacob Steven |
President & COO |
Informative Buy |
15,700 |
$54.98 |
$863.14K |
329,197 |
| 2025-11-10 |
Collins Richard Alexander |
Director |
Informative Sell |
3,948 |
$55.17 |
$217.81K |
37,994 |
| 2025-10-24 |
Ashley Euan A. |
Director |
Unknown |
- |
- |
- |
- |
| 2025-10-24 |
Ashley Euan A. |
Director |
RSU Award |
7,166 |
- |
- |
7,166 |
| 2025-09-05 |
Malady Kyle |
Director |
Informative Sell |
667 |
$80.86 |
$53.93K |
22,667 |
| 2025-09-04 |
Stern Sadie |
EVP, Chief HR Officer |
Informative Sell |
1,466 |
$80.00 |
$117.28K |
105,223 |
| 2025-09-02 |
Sylvain Jereme M |
EVP, Chief Financal Officer |
Informative Sell |
4,824 |
$74.17 |
$357.8K |
118,657 |
| 2025-08-15 |
Foletta Mark G |
Director |
Informative Sell |
195 |
$81.54 |
$15.9K |
51,121 |
| 2025-08-15 |
Brown Michael Jon |
EVP, Chief Legal Officer |
Informative Sell |
500 |
$80.29 |
$40.15K |
94,102 |
| 2025-07-28 |
Stern Sadie |
EVP, Chief HR Officer |
Informative Sell |
1,466 |
$88.99 |
$130.46K |
106,689 |
| 2025-07-15 |
Foletta Mark G |
Director |
Informative Sell |
8 |
$86.03 |
$688.24 |
53,871 |
| 2025-07-15 |
Brown Michael Jon |
EVP, Chief Legal Officer |
Informative Sell |
500 |
$86.03 |
$43.02K |
94,602 |
| 2025-06-26 |
Stern Sadie |
EVP, Chief HR Officer |
Informative Sell |
1,466 |
$85.06 |
$124.7K |
108,155 |
| 2025-06-16 |
Augustinos Nicholas |
Director |
Informative Sell |
3,672 |
$82.80 |
$304.04K |
33,411 |
| 2025-06-16 |
Foletta Mark G |
Director |
Informative Sell |
2,750 |
$83.13 |
$228.6K |
56,621 |
| 2025-06-16 |
Brown Michael Jon |
EVP, Chief Legal Officer |
Informative Sell |
500 |
$82.80 |
$41.4K |
95,102 |
| 2025-06-13 |
Augustinos Nicholas |
Director |
Informative Sell |
2,618 |
$81.69 |
$213.86K |
37,083 |
| 2025-05-27 |
Stern Sadie |
EVP, Chief HR Officer |
Informative Sell |
6,184 |
$85.11 |
$526.32K |
109,621 |
| 2025-05-23 |
Brown Michael Jon |
EVP, Chief Legal Officer |
Informative Sell |
10,000 |
$84.28 |
$842.85K |
95,602 |
| 2025-05-22 |
Coleman Jon |
EVP, Chief Commercial Officer |
RSU Award |
68,738 |
- |
- |
68,738 |
| 2025-05-08 |
Altman Steven R |
Director |
Gift (Given) |
2,613 |
- |
- |
- |
| 2025-05-08 |
Foletta Mark G |
Director |
Gift (Given) |
2,973 |
- |
- |
- |
| 2025-05-08 |
Augustinos Nicholas |
Director |
Gift (Given) |
2,618 |
- |
- |
- |
| 2025-05-08 |
Topol Eric |
Director |
Gift (Given) |
2,618 |
- |
- |
- |
| 2025-05-08 |
Heller Bridgette P |
Director |
RSU Award |
5,046 |
- |
- |
28,043 |
| 2025-05-08 |
Dahut Karen M |
Director |
Gift (Given) |
2,613 |
- |
- |
- |
| 2025-05-08 |
Gala Renee D |
Director |
RSU Award |
5,074 |
- |
- |
10,794 |
| 2025-05-08 |
Collins Richard Alexander |
Director |
Gift (Given) |
2,632 |
- |
- |
- |
| 2025-05-08 |
Malady Kyle |
Director |
RSU Award |
5,192 |
- |
- |
23,334 |
| 2025-05-08 |
Driscoll Rimma |
Director |
RSU Award |
5,074 |
- |
- |
11,714 |
| 2025-05-08 |
Gala Renee D |
Director |
RSU Award |
1,161 |
- |
- |
6,881 |
| 2025-03-31 |
Coleman Jon |
Officer |
Unknown |
- |
- |
- |
- |
| 2025-03-17 |
Heller Bridgette P |
Director |
Informative Sell |
352 |
$70.33 |
$24.76K |
22,997 |
■ Informative Buy/Sell — open market transaction (most significant)
■ Uninformative Buy — award, option exercise, conversion
■ Uninformative Sell — tax withholding, award vest sale
■ Neutral — gift, trust, expiry
