DXCM
DEXCOM INC
NASDAQ · Healthcare · Medical - Devices · US
$89.35
+1.61%0
Insider buys (3m)
14
Insider sells (3m)
-$8.3M
Net value (3m)
+28.9%
Price return (3m)
Form 4 filings
| Date | Insider | Activity | Shares | Price |
|---|---|---|---|---|
| Sep 16, 2026 | AUGUSTINOS NICHOLAS · director | Sale | 6,539 | $84 |
| Sep 16, 2026 | Brown Michael Jon · officer: EVP Chief Legal Compliance Off | Sale | 1,700 | $84 |
| Sep 16, 2026 | AUGUSTINOS NICHOLAS · director | Sale | 1,550 | $84 |
| Sep 14, 2026 | Sylvain Jereme M · officer: EVP, Chief Financal Officer | Sale | 3,638 | $83 |
| Sep 10, 2026 | Boehnlein Glenn S · director | A-Award | 5,841 | $0.00 |
| Aug 28, 2026 | Stern Sadie · officer: EVP Chief People & Culture Off | Sale | 2,565 | $88 |
| Aug 25, 2026 | Brown Michael Jon · officer: EVP Chief Legal Compliance Off | F-InKind | 1,451 | $92 |
| Aug 25, 2026 | Leach Jacob Steven · director, officer: President, CEO, and Director | F-InKind | 1,451 | $92 |
| Aug 25, 2026 | Stern Sadie · officer: EVP Chief People & Culture Off | F-InKind | 1,451 | $92 |
| Aug 25, 2026 | Sylvain Jereme M · officer: EVP, Chief Financal Officer | F-InKind | 1,451 | $92 |
| Aug 24, 2026 | SAYER KEVIN R · director, officer: Executive Chair | Sale | 19,308 | $90 |
| Aug 24, 2026 | SAYER KEVIN R · director, officer: Executive Chair | Sale | 7,351 | $91 |
| Aug 24, 2026 | SAYER KEVIN R · director, officer: Executive Chair | Sale | 97 | $91 |
| Aug 17, 2026 | Brown Michael Jon · officer: EVP Chief Legal Compliance Off | Sale | 1,700 | $92 |
| Aug 13, 2026 | Heller Bridgette P · director | Sale | 1,012 | $88 |
| Aug 4, 2026 | FOLETTA MARK G · director | Sale | 2,000 | $80 |
| Jul 21, 2026 | SAYER KEVIN R · director, officer: Executive Chair | Sale | 26,756 | $76 |
| Jul 16, 2026 | Brown Michael Jon · officer: EVP Chief Legal Compliance Off | Sale | 1,700 | $74 |
| Jul 7, 2026 | SAYER KEVIN R · director, officer: Executive Chair | Sale | 26,756 | $72 |
| Jun 17, 2026 | FOLETTA MARK G · director | Sale | 199 | $75 |
| Jun 17, 2026 | FOLETTA MARK G · director | Sale | 3,801 | $74 |
| Jun 17, 2026 | Brown Michael Jon · officer: EVP Chief Legal Compliance Off | Sale | 1,700 | $76 |
| Jun 5, 2026 | Coleman Jon · officer: EVP, Chief Commercial Officer | Sale | 4,912 | $73 |
| Jun 5, 2026 | Coleman Jon · officer: EVP, Chief Commercial Officer | Sale | 4,911 | $74 |
| Jun 1, 2026 | Collins Richard Alexander · director | A-Award | 5,605 | $0.00 |
| Jun 1, 2026 | Driscoll Rimma · director | A-Award | 5,605 | $0.00 |
| Jun 1, 2026 | GALA RENEE D · director | A-Award | 5,605 | $0.00 |
| Jun 1, 2026 | Ashley Euan A. · director | A-Award | 5,565 | $0.00 |
| Jun 1, 2026 | Heller Bridgette P · director | A-Award | 5,575 | $0.00 |
| Jun 1, 2026 | Osterloh Albert Frederick IV · director | A-Award | 1,630 | $0.00 |
Institutional positioning
13F filings over the trailing two quarters
New 269Increased 771Reduced 687Sold out 104
| Filer | Action | Shares | Filed |
|---|---|---|---|
| BLACKROCK, INC. | Reduced | 38,964,371 | May 13, 2026 |
| BlackRock, Inc. | Reduced | 38,244,137 | Aug 7, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 25,209,752 | Aug 13, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 25,020,961 | May 15, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Increased | 19,656,540 | Aug 13, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New Position | 19,219,953 | May 8, 2026 |
| STATE STREET CORP | Increased | 18,380,806 | Aug 7, 2026 |
| STATE STREET CORP | Reduced | 17,934,847 | May 15, 2026 |
| BAILLIE GIFFORD & CO | Increased | 15,599,525 | May 8, 2026 |
| Invesco Ltd. | Increased | 15,288,133 | Aug 14, 2026 |
| BAILLIE GIFFORD & CO | Reduced | 14,801,590 | Aug 6, 2026 |
| ALLIANCEBERNSTEIN L.P. | Increased | 12,923,644 | May 15, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 12,426,515 | Aug 12, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 12,346,638 | May 15, 2026 |
| ALLIANCEBERNSTEIN L.P. | Reduced | 11,693,409 | Aug 14, 2026 |
Insider activity from SEC Form 4; institutional positioning from 13F filings · Latest filing Sep 16, 2026