Richard Yang
CIK 1446423 · View on SEC EDGAR ↗
Insider
First SEC filing: Sept. 29, 2008 · Latest: Sept. 29, 2008
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 5 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
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 2026-08-20) |
| March 12, 2010 | DXCM | A | 6,956 | — | — | 6,956 Direct | — | Acquired | (price as of 2026-08-20) |
| Dec. 11, 2008 | DXCM | A | 45,000 | — | — | 45,000 Direct | — | Acquired | (price as of 2026-08-20) |
| Sept. 25, 2008 | DXCM | A | 40,625 | — | — | 40,625 Direct | — | Acquired | (price as of 2026-08-20) |
| Sept. 25, 2008 | DXCM | A | 9,375 | — | — | 9,375 Direct | — | Acquired | (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 |
|---|---|---|---|---|---|---|---|
| March 12, 2010 | DXCM | Non-Qualified Stock Option (right to buy) | Common Stock (34,044) | $9.80 | March 12, 2020 | 34,044 | Acquired |
| March 12, 2010 | DXCM | Incentive Stock Option (right to buy) | Common Stock (6,956) | $9.80 | March 12, 2020 | 6,956 | Acquired |
| Dec. 11, 2008 | DXCM | Non-Qualified Stock Option (right to buy) | Common Stock (45,000) | $3.19 | Dec. 11, 2018 | 45,000 | Acquired |
| Sept. 25, 2008 | DXCM | Non-Qualified Stock Option (Right to Buy) | Common Stock (40,625) | $6.33 | Sept. 24, 2018 | 40,625 | Acquired |
| Sept. 25, 2008 | DXCM | Incentive Stock Option (Right to Buy) | Common Stock (9,375) | $6.33 | Sept. 24, 2018 | 9,375 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 4 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Sept. 29, 2008 | DXCM | Incentive Stock Option (Right to Buy)→ Common Stock (44,353) | 44,353 | Direct |
| Sept. 29, 2008 | DXCM | Non-Qualified Stock Option (Right to Buy)→ Common Stock (5,647) | 5,647 | Direct |
| Sept. 29, 2008 | DXCM | Incentive Stock Option (Right to Buy)→ Common Stock (1,819) | 1,819 | Direct |
| Sept. 29, 2008 | DXCM | Non-Qualified Stock Option (Right to Buy)→ Common Stock (5,681) | 5,681 | Direct |