Guichao Hua
CIK 1833474 · View on SEC EDGAR ↗
First SEC filing: Jan. 27, 2021 · Latest: Jan. 27, 2021
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Insider at
Insider transactions
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Dec. 19, 2022 | RYM | P | 54,264 | $85.10 | $4,617,866 | 65,956 Direct | +464.11% | Acquired | -99.9% (price as of 2026-08-21) |
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 |
|---|---|---|---|---|---|---|---|
| Nov. 28, 2023 | RYM | Restricted Stock Unit [F1] | Common Stock (26,866) | — | — | 26,866 | Acquired |
| Aug. 10, 2022 | RYM | Restricted Stock Unit [F1] | Common Stock (53,459) | — | — | 53,459 | Acquired |
| Feb. 17, 2021 | RYM | Stock Options | Common Stock (50,000) | $13.84 | Feb. 17, 2031 | 50,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 3 holdings
Securities held when first becoming an insider, per SEC Form 3.