DXCM
DEXCOM INC
Surgical & Medical Instruments & ApparatusNasdaqLarge accelerated filer
Total Trades
135
Buys
1
Sells
123
Largest Trade
N/A
Insiders
19
Institutional Funds
787
Inst. Value
$1M+
Activist Filings
8
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| Heller Bridgette P | Director | SELL | $50K–$100K | 1K | $68.01 | Feb 17, 2026 |
| Collins Richard Alexander | Director | SELL | $100K–$500K | 3K | $59.05 | Nov 17, 2025 |
| Heller Bridgette P | Director | SELL | $50K–$100K | 1K | $58.07 | Nov 12, 2025 |
| Leach Jacob Steven | President & COO | BUY | $1M+ | 18K | $55.04 | Nov 11, 2025 |
| Collins Richard Alexander | Director | SELL | $100K–$500K | 4K | $55.17 | Nov 11, 2025 |
| Malady Kyle | Director | SELL | $50K–$100K | 667 | $80.86 | Sep 9, 2025 |
| Stern Sadie | EVP | SELL | $100K–$500K | 1K | $80.00 | Sep 8, 2025 |
| Sylvain Jereme M | EVP | SELL | $100K–$500K | 5K | $74.17 | Sep 4, 2025 |
| Stern Sadie | EVP | SELL | $100K–$500K | 1K | $88.99 | Jul 29, 2025 |
| FOLETTA MARK G | Director | SELL | $100K–$500K | 3K | $85.17 | Jul 17, 2025 |
| Brown Michael Jon | EVP | SELL | $15K–$50K | 500 | $86.03 | Jul 17, 2025 |
| Stern Sadie | EVP | SELL | $100K–$500K | 1K | $85.06 | Jun 30, 2025 |
| FOLETTA MARK G | Director | SELL | $100K–$500K | 3K | $83.13 | Jun 18, 2025 |
| Brown Michael Jon | EVP | SELL | $15K–$50K | 500 | $82.80 | Jun 18, 2025 |
| AUGUSTINOS NICHOLAS | Director | SELL | $500K+ | 6K | $82.34 | Jun 17, 2025 |
| Stern Sadie | EVP | SELL | $500K+ | 6K | $85.11 | May 28, 2025 |
| Brown Michael Jon | EVP | SELL | $500K+ | 10K | $84.28 | May 28, 2025 |
| Heller Bridgette P | Director | SELL | $15K–$50K | 352 | $70.33 | Mar 19, 2025 |
| Leach Jacob Steven | COO | SELL | $500K+ | 14K | $70.38 | Mar 14, 2025 |
| Brown Michael Jon | EVP | SELL | $500K+ | 13K | $70.38 | Mar 14, 2025 |
| Sylvain Jereme M | EVP | SELL | $500K+ | 12K | $70.38 | Mar 14, 2025 |
| Stern Sadie | EVP | SELL | $500K+ | 11K | $70.38 | Mar 14, 2025 |
| SAYER KEVIN R | Chairman | SELL | $1M+ | 32K | $70.38 | Mar 14, 2025 |
| Sylvain Jereme M | EVP | SELL | $500K+ | 7K | $73.83 | Mar 11, 2025 |
| Sylvain Jereme M | EVP | GRANT | N/A | 59K | — | Mar 11, 2025 |
| Sylvain Jereme M | EVP | GRANT | N/A | 6K | — | Jan 30, 2025 |
| Sylvain Jereme M | EVP | SELL | $100K–$500K | 2K | $86.91 | Jan 30, 2025 |
| Dolan Matthew Vincent | EVP | GRANT | N/A | 3K | — | Jan 30, 2025 |
| Dolan Matthew Vincent | EVP | SELL | $100K–$500K | 1K | $86.91 | Jan 30, 2025 |
| Stern Sadie | EVP | GRANT | N/A | 6K | — | Jan 30, 2025 |
| Stern Sadie | EVP | SELL | $100K–$500K | 2K | $86.91 | Jan 30, 2025 |
| Leach Jacob Steven | COO | GRANT | N/A | 7K | — | Jan 30, 2025 |
| Leach Jacob Steven | COO | SELL | $100K–$500K | 3K | $86.91 | Jan 30, 2025 |
| SAYER KEVIN R | Chairman | SELL | $1M+ | 33K | $86.91 | Jan 30, 2025 |
| SAYER KEVIN R | Chairman | GRANT | N/A | 69K | — | Jan 30, 2025 |
| Stern Sadie | EVP | SELL | $100K–$500K | 4K | $74.73 | Nov 22, 2024 |
| Sylvain Jereme M | EVP | SELL | $100K–$500K | 4K | $75.51 | Nov 18, 2024 |
| Brown Michael Jon | EVP | SELL | $15K–$50K | 686 | $70.00 | Sep 3, 2024 |
| Brown Michael Jon | EVP | SELL | $15K–$50K | 652 | $69.55 | Aug 1, 2024 |
| Brown Michael Jon | EVP Chief Legal Of… | SELL | $50K–$100K | 659 | $114.29 | Jun 28, 2024 |
| FOLETTA MARK G | Director | SELL | $500K+ | 6K | $117.00 | Jun 20, 2024 |
| Heller Bridgette P | Director | SELL | $100K–$500K | 1K | $113.55 | Jun 18, 2024 |
| Sylvain Jereme M | CFO | SELL | $50K–$100K | 745 | $115.05 | Jun 11, 2024 |
| Stern Sadie | EVP Chief HR Officer | SELL | $15K–$50K | 427 | $115.05 | Jun 11, 2024 |
| Leach Jacob Steven | COO | SELL | $50K–$100K | 745 | $115.05 | Jun 11, 2024 |
| Brown Michael Jon | EVP Chief Legal Of… | SELL | $50K–$100K | 652 | $119.24 | May 31, 2024 |
| Brown Michael Jon | EVP Chief Legal Of… | SELL | $50K–$100K | 629 | $126.25 | May 2, 2024 |
| Dolan Matthew Vincent | EVP Strategy and C… | SELL | $100K–$500K | 2K | $137.81 | Apr 16, 2024 |
| SAYER KEVIN R | President CEO and … | SELL | $1M+ | 50K | $138.30 | Apr 10, 2024 |
| Brown Michael Jon | EVP Chief Legal Of… | SELL | $100K–$500K | 3K | $140.04 | Mar 29, 2024 |
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Institutional Ownership
13F filings as of Dec 31, 2025 · 787 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| J. Stern & Co. LLP | 1.6M | $1M+ | SH |
| STATE STREET CORP | 18.1M | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 9.9M | $1M+ | SH |
| ALLIANCEBERNSTEIN L.P. | 8.6M | $1M+ | SH |
| NORGES BANK | 7.3M | $1M+ | SH |
| JENNISON ASSOCIATES LLC | 5.7M | $1M+ | SH |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 3.1M | $1M+ | SH |
| Squarepoint Ops LLC | 2.5M | $1M+ | SH |
| DSM CAPITAL PARTNERS LLC | 2.4M | $1M+ | SH |
| Neuberger Berman Group LLC | 2.3M | $1M+ | SH |
| AMERICAN CENTURY COMPANIES INC | 2.2M | $1M+ | SH |
| CIK 1600177 | 2.2M | $1M+ | SH |
| LOS ANGELES CAPITAL MANAGEMENT LLC | 1.8M | $1M+ | SH |
| BNP PARIBAS FINANCIAL MARKETS | 1.8M | $1M+ | SH |
| RENAISSANCE TECHNOLOGIES LLC | 1.4M | $1M+ | SH |
| WESTFIELD CAPITAL MANAGEMENT CO LP | 1.4M | $1M+ | SH |
| DIMENSIONAL FUND ADVISORS LP | 1.4M | $1M+ | SH |
| Capital World Investors | 1.4M | $1M+ | SH |
| Soleus Capital Management, L.P. | 1.3M | $1M+ | SH |
| BAILLIE GIFFORD & CO | 1.3M | $1M+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
SC 13G/A · Oct 30, 2025
12.6%
49.5M shares
SC 13G/A · Apr 24, 2025
8.3%
32.5M shares
SC 13G/A · Dec 6, 2024
10.4%
40.5M shares
The Vanguard Group - 23-1945930
SC 13G/A · Feb 13, 2024
11.5%
44.5M shares
SC 13G/A · Jan 25, 2024
8.5%
32.9M shares
SC 13G/A · Feb 10, 2023
8.7%
33.5M shares
SC 13G/A · Jan 27, 2023
8.7%
33.9M shares
SC 13G/A · Jan 25, 2023
8.8%
33.9M shares