Michael Cunyuan Chen
Insider
First SEC filing: April 30, 2026 · Latest: April 30, 2026
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 4, 2026 | SPTX | C | 10,526 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| May 4, 2026 | SPTX | C | 3,351 | · | · | 3,351 Direct | · | Acquired | (price as of 2026-10-05) |
| April 30, 2026 | SPTX | A | 63,680 | · | · | 63,680 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 |
|---|---|---|---|---|---|---|---|
| May 4, 2026 | SPTX | Series B Preferred Stock | Common Stock | · | · | 10,526 | Disposed |
| April 30, 2026 | SPTX | Stock Option (Right to Buy) | Common Stock | $18.00 | April 29, 2036 | 63,680 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 5 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| April 30, 2026 | SPTX | Series B Preferred Stock | 3,351 | Direct |
| April 30, 2026 | SPTX | Stock Option (Right to Buy) | 400,618 | Direct |
| April 30, 2026 | SPTX | Stock Option (Right to Buy) | 18,042 | Direct |
| April 30, 2026 | SPTX | Stock Option (Right to Buy) | 86,267 | Direct |
| April 30, 2026 | SPTX | Stock Option (Right to Buy) | 63,680 | Direct |