Laura Johnson
Insider
First SEC filing: Sept. 29, 2008 · Latest: Sept. 29, 2008
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net: $0
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
No open-market trades on record; showing all filings.
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| March 12, 2010 | DXCM | A | 34,044 | · | · | 34,044 Direct | · | Acquired | (price as of 2026-10-05) |
| March 12, 2010 | DXCM | A | 6,956 | · | · | 6,956 Direct | · | Acquired | (price as of 2026-10-05) |
| Dec. 11, 2008 | DXCM | A | 1 | · | · | 1 Direct | · | Acquired | (price as of 2026-10-05) |
| Dec. 11, 2008 | DXCM | A | 44,999 | · | · | 44,999 Direct | · | Acquired | (price as of 2026-10-05) |
| Sept. 25, 2008 | DXCM | A | 14,682 | · | · | 14,682 Direct | · | Acquired | (price as of 2026-10-05) |
| Sept. 25, 2008 | DXCM | A | 35,318 | · | · | 35,318 Direct | · | Acquired | (price as of 2026-10-05) |
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 |
|---|---|---|---|---|---|---|---|
| March 12, 2010 | DXCM | Non-Qualified Stock Option (right to buy) | Common Stock | $9.80 | March 12, 2020 | 34,044 | Acquired |
| March 12, 2010 | DXCM | Incentive Stock Option (right to buy) | Common Stock | $9.80 | March 12, 2020 | 6,956 | Acquired |
| Dec. 11, 2008 | DXCM | Incentive Stock Option (right to buy) | Common Stock | $3.19 | Dec. 11, 2018 | 1 | Acquired |
| Dec. 11, 2008 | DXCM | Non-Qualified Stock Option (right to buy) | Common Stock | $3.19 | Dec. 11, 2018 | 44,999 | Acquired |
| Sept. 25, 2008 | DXCM | Non-Qualified Stock Option (Right to Buy) | Common Stock | $6.33 | Sept. 24, 2018 | 14,682 | Acquired |
| Sept. 25, 2008 | DXCM | Incentive Stock Option (Right to Buy) | Common Stock | $6.33 | Sept. 24, 2018 | 35,318 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 8 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Sept. 29, 2008 | DXCM | Common Stock | 1,875 | Direct |
| Sept. 29, 2008 | DXCM | Incentive Stock Option (Right to Buy) | 8,500 | Direct |
| Sept. 29, 2008 | DXCM | Incentive Stock Option (Right to Buy) | 5,250 | Direct |
| Sept. 29, 2008 | DXCM | Incentive Stock Option (Right to Buy) | 6,750 | Direct |
| Sept. 29, 2008 | DXCM | Incentive Stock Option (Right to Buy) | 5,500 | Direct |
| Sept. 29, 2008 | DXCM | Incentive Stock Option (Right to Buy) | 5,625 | Direct |
| Sept. 29, 2008 | DXCM | Incentive Stock Option (Right to Buy) | 7,500 | Direct |
| Sept. 29, 2008 | DXCM | Incentive Stock Option (Right to Buy) | 7,500 | Direct |