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Arphra AIPlain-English read on DexCom, Inc.’s valuationTransactions
23
2 buys · 21 sells
Bought
$1M
Open market
Sold
$2.85M
Open market
Net flow
−$1.85M
Buys − sells
Transactions
| Insider | Role | Action | Shares | Price | Value | Trade date | Filing |
|---|---|---|---|---|---|---|---|
| Brown Michael Jon | officer: EVP, Chief Legal Officer | Sell | 1,700 | $63.04 | $107.17K | Apr 15, 2026 | Apr 16, 2026 |
| Brown Michael Jon | officer: EVP, Chief Legal Officer | Sell | 1,700 | $64.85 | $110.25K | Mar 16, 2026 | Mar 18, 2026 |
| Heller Bridgette P | director | Sell | 1,012 | $68.01 | $68.83K | Feb 12, 2026 | Feb 17, 2026 |
| Collins Richard Alexander | director | Sell | 2,906 | $59.05 | $171.6K | Nov 14, 2025 | Nov 17, 2025 |
| Heller Bridgette P | director | Sell | 1,012 | $58.07 | $58.77K | Nov 12, 2025 | Nov 12, 2025 |
| Leach Jacob Steven | officer: President & COO | Buy | 15,700 | $54.98 | $863.14K | Nov 10, 2025 | Nov 10, 2025 |
| Leach Jacob Steven | officer: President & COO | Buy | 2,500 | $55.43 | $138.56K | Nov 10, 2025 | Nov 10, 2025 |
| Collins Richard Alexander | director | Sell | 3,948 | $55.17 | $217.81K | Nov 10, 2025 | Nov 10, 2025 |
| Malady Kyle | director | Sell | 667 | $80.86 | $53.93K | Sep 05, 2025 | Sep 09, 2025 |
| Stern Sadie | officer: EVP, Chief HR Officer | Sell | 1,466 | $80.00 | $117.28K | Sep 04, 2025 | Sep 08, 2025 |
| Sylvain Jereme M | officer: EVP, Chief Financal Officer | Sell | 4,824 | $74.17 | $357.8K | Sep 02, 2025 | Sep 04, 2025 |
| FOLETTA MARK G | director | Sell | 195 | $81.54 | $15.9K | Aug 15, 2025 | Aug 18, 2025 |
| Brown Michael Jon | officer: EVP, Chief Legal Officer | Sell | 500 | $80.29 | $40.15K | Aug 15, 2025 | Aug 18, 2025 |
| FOLETTA MARK G | director | Sell | 2,555 | $81.02 | $207K | Aug 15, 2025 | Aug 18, 2025 |
| Stern Sadie | officer: EVP, Chief HR Officer | Sell | 1,466 | $88.99 | $130.46K | Jul 28, 2025 | Jul 29, 2025 |
| FOLETTA MARK G | director | Sell | 8 | $86.03 | $688.24 | Jul 15, 2025 | Jul 17, 2025 |
| FOLETTA MARK G | director | Sell | 2,742 | $85.17 | $233.53K | Jul 15, 2025 | Jul 17, 2025 |
| Brown Michael Jon | officer: EVP, Chief Legal Officer | Sell | 500 | $86.03 | $43.02K | Jul 15, 2025 | Jul 17, 2025 |
| Stern Sadie | officer: EVP, Chief HR Officer | Sell | 1,466 | $85.06 | $124.7K | Jun 26, 2025 | Jun 30, 2025 |
| Brown Michael Jon | officer: EVP, Chief Legal Officer | Sell | 500 | $82.80 | $41.4K | Jun 16, 2025 | Jun 18, 2025 |
| FOLETTA MARK G | director | Sell | 2,750 | $83.13 | $228.6K | Jun 16, 2025 | Jun 18, 2025 |
| AUGUSTINOS NICHOLAS | director | Sell | 3,672 | $82.80 | $304.04K | Jun 16, 2025 | Jun 17, 2025 |
| AUGUSTINOS NICHOLAS | director | Sell | 2,618 | $81.69 | $213.86K | Jun 13, 2025 | Jun 17, 2025 |
By insider
- Leach Jacob Steven+$1Mofficer: President & COO2B · 0S
- FOLETTA MARK G−$685.72Kdirector0B · 5S
- AUGUSTINOS NICHOLAS−$517.91Kdirector0B · 2S
- Collins Richard Alexander−$389.41Kdirector0B · 2S
- Stern Sadie−$372.44Kofficer: EVP, Chief HR Officer0B · 3S
- Sylvain Jereme M−$357.8Kofficer: EVP, Chief Financal Officer0B · 1S
- Brown Michael Jon−$341.97Kofficer: EVP, Chief Legal Officer0B · 5S
- Heller Bridgette P−$127.59Kdirector0B · 2S
- Malady Kyle−$53.93Kdirector0B · 1S
Beneficial ownership filings
Schedule 13D / 13G — investors holding more than 5% of DXCM-US.
DB · acquisition_ownership3
Top 10 holders · 8 quarters
13F position evolutionNo 13F history in
institutional_holders for DXCM-US.