Nicholas Augustinos
CIK 1238485 · View on SEC EDGAR ↗
Insider
First SEC filing: June 1, 2026 · Latest: June 1, 2026
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 41 non-open-market transactions below
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
41 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| June 16, 2025 | DXCM | S 10b5-1 | 3,672 | $82.80 | $304,042 | 33,411 Indirect | -9.90% | Disposed | 10.0% (price as of 2026-08-20) |
| June 13, 2025 | DXCM | S 10b5-1 | 2,618 | $81.69 | $213,864 | 37,083 Indirect | -6.59% | Disposed | 11.5% (price as of 2026-08-20) |
| Dec. 15, 2023 | DXCM | S 10b5-1 | 3,976 | $123.02 | $489,128 | 34,040 Indirect | -10.46% | Disposed | -26.0% (price as of 2026-08-20) |
| Oct. 29, 2021 | DXCM | S 10b5-1 | 2,500 | $600.03 | $1,500,075 | 918 Direct | -73.14% | Disposed | -39.3% (price as of 2026-08-20) |
| June 3, 2021 | DXCM | S 10b5-1 | 806 | $366.99 | $295,794 | 3,110 Direct | -20.58% | Disposed | -0.8% (price as of 2026-08-20) |
| Feb. 16, 2021 | DXCM | S 10b5-1 | 1,875 | $412.03 | $772,556 | 10,092 Indirect | -15.67% | Disposed | -11.6% (price as of 2026-08-20) |
| Jan. 6, 2021 | DXCM | S 10b5-1 | 625 | $375.00 | $234,375 | 11,967 Indirect | -4.96% | Disposed | -2.9% (price as of 2026-08-20) |
| Dec. 16, 2020 | DXCM | S 10b5-1 | 600 | $352.20 | $211,320 | 13,242 Indirect | -4.33% | Disposed | 3.4% (price as of 2026-08-20) |
| Dec. 16, 2020 | DXCM | S 10b5-1 | 25 | $354.00 | $8,850 | 13,217 Indirect | -0.19% | Disposed | 2.9% (price as of 2026-08-20) |
| Dec. 16, 2020 | DXCM | S 10b5-1 | 625 | $356.82 | $223,012 | 12,592 Indirect | -4.73% | Disposed | 2.1% (price as of 2026-08-20) |
| Sept. 16, 2020 | DXCM | S 10b5-1 | 126 | $402.49 | $50,714 | 13,842 Indirect | -0.90% | Disposed | -9.5% (price as of 2026-08-20) |
| Sept. 16, 2020 | DXCM | S 10b5-1 | 88 | $400.94 | $35,283 | 13,968 Indirect | -0.63% | Disposed | -9.2% (price as of 2026-08-20) |
| Sept. 16, 2020 | DXCM | S 10b5-1 | 1,471 | $399.84 | $588,165 | 14,056 Indirect | -9.47% | Disposed | -8.9% (price as of 2026-08-20) |
| Sept. 16, 2020 | DXCM | S 10b5-1 | 66 | $398.10 | $26,275 | 15,527 Indirect | -0.42% | Disposed | -8.5% (price as of 2026-08-20) |
| Sept. 16, 2020 | DXCM | S 10b5-1 | 124 | $396.51 | $49,167 | 15,593 Indirect | -0.79% | Disposed | -8.1% (price as of 2026-08-20) |
| June 15, 2020 | DXCM | S 10b5-1 | 1,250 | $362.47 | $453,088 | 16,342 Indirect | -7.11% | Disposed | 0.5% (price as of 2026-08-20) |
| June 15, 2020 | DXCM | S 10b5-1 | 625 | $375.00 | $234,375 | 15,717 Indirect | -3.82% | Disposed | -2.9% (price as of 2026-08-20) |
| Feb. 14, 2020 | DXCM | S 10b5-1 | 1,812 | $283.80 | $514,246 | 3,230 Direct | -35.94% | Disposed | 28.3% (price as of 2026-08-20) |
| Dec. 16, 2019 | DXCM | S 10b5-1 | 1,812 | $206.14 | $373,526 | 5,042 Direct | -26.44% | Disposed | 76.7% (price as of 2026-08-20) |
| Nov. 7, 2019 | DXCM | S 10b5-1 | 1,208 | $185.29 | $223,830 | 6,854 Direct | -14.98% | Disposed | 96.6% (price as of 2026-08-20) |
| Sept. 16, 2019 | DXCM | S 10b5-1 | 1,208 | $145.49 | $175,752 | 8,062 Direct | -13.03% | Disposed | 150.3% (price as of 2026-08-20) |
| June 14, 2019 | DXCM | S 10b5-1 | 1,208 | $146.32 | $176,755 | 9,270 Direct | -11.53% | Disposed | 148.9% (price as of 2026-08-20) |
| Aug. 6, 2018 | DXCM | S | 3,230 | $121.76 | $393,285 | 14,362 Indirect | -18.36% | Disposed | 199.1% (price as of 2026-08-20) |
| Aug. 6, 2018 | DXCM | S | 2,970 | $121.72 | $361,508 | 7,802 Direct | -27.57% | Disposed | 199.2% (price as of 2026-08-20) |
| Aug. 6, 2018 | DXCM | S | 6,100 | $120.91 | $737,551 | 10,772 Direct | -36.15% | Disposed | 201.2% (price as of 2026-08-20) |
| Dec. 12, 2013 | DXCM | S | 11,321 | $34.40 | $389,442 | 11,130 Direct | -50.43% | Disposed | 958.7% (price as of 2026-08-20) |
| Dec. 10, 2013 | DXCM | S | 48,000 | $33.38 | $1,602,240 | 22,451 Direct | -68.13% | Disposed | 991.1% (price as of 2026-08-20) |
| Dec. 10, 2013 | DXCM | S | 28,157 | $33.46 | $942,133 | 22,451 Direct | -55.64% | Disposed | 988.5% (price as of 2026-08-20) |
| Dec. 9, 2013 | DXCM | S | 3,244 | $34.55 | $112,080 | 50,608 Direct | -6.02% | Disposed | 954.1% (price as of 2026-08-20) |
| Dec. 9, 2013 | DXCM | S | 18,140 | $34.41 | $624,197 | 50,608 Direct | -26.39% | Disposed | 958.4% (price as of 2026-08-20) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II)
Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| Dec. 10, 2013 | DXCM | Non-Qualified Stock Option (right to buy) | Common Stock (48,000) | $7.27 | Nov. 20, 2019 | 48,000 | Disposed |
| Dec. 9, 2013 | DXCM | Non-Qualified Stock Option (right to buy) | Common Stock (3,244) | $7.27 | Nov. 20, 2019 | 3,244 | Disposed |
| Dec. 9, 2013 | DXCM | Non-Qualified Stock Option (right to buy) | Common Stock (18,140) | $7.27 | Nov. 20, 2019 | 18,140 | Disposed |
| Nov. 20, 2009 | DXCM | Non-Qualified Stock Option (right to buy) | Common Stock (3,244) | $7.27 | Nov. 20, 2019 | 3,244 | Acquired |
| Nov. 20, 2009 | DXCM | Non-Qualified Stock Option (right to buy) | Common Stock (66,140) | $7.27 | Nov. 20, 2019 | 66,140 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).