Henry Chen
Insider
First SEC filing: March 2, 2016 · Latest: March 2, 2016
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 |
|---|---|---|---|---|---|---|---|---|---|
| May 23, 2018 | SNDX | A | 14,000 | · | · | 14,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 8, 2018 | SNDX | A | 10,000 | · | · | 10,000 Direct | · | Acquired | (price as of 2026-10-02) |
| May 17, 2017 | SNDX | A | 10,000 | · | · | 10,000 Direct | · | Acquired | (price as of 2026-10-02) |
| May 17, 2017 | SNDX | A | 5,000 | · | · | 5,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Oct. 31, 2016 | SNDX | A | 8,000 | · | · | 8,000 Direct | · | Acquired | (price as of 2026-10-02) |
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 |
|---|---|---|---|---|---|---|---|
| May 23, 2018 | SNDX | Stock Option (Right to Buy) | Common Stock | $8.93 | May 23, 2028 | 14,000 | Acquired |
| Feb. 8, 2018 | SNDX | Stock Option (Right to Buy) | Common Stock | $9.63 | Feb. 8, 2028 | 10,000 | Acquired |
| May 17, 2017 | SNDX | Stock Option (Right to Buy) | Common Stock | $13.58 | May 17, 2027 | 10,000 | Acquired |
| May 17, 2017 | SNDX | Stock Option (Right to Buy) | Common Stock | $13.58 | May 17, 2027 | 5,000 | Acquired |
| Oct. 31, 2016 | SNDX | Stock Options (Right to buy) | Common Stock | $11.81 | Oct. 31, 2026 | 8,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 1 holding
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| March 2, 2016 | SNDX | Stock Option (right to buy) | 14,400 | Direct |