Jun Yoon
CIK 1962414 · View on SEC EDGAR ↗
First SEC filing: Feb. 2, 2023 · Latest: Feb. 2, 2023
On this page
- Insider at Companies where this person is a reporting insider.
- Insider transactions Every share this person bought or sold, from Form 4 filings.
- Derivatives Options and other derivative holdings reported by this person.
- Initial holdings The stakes this person held when they first started reporting.
- Compensation Executive pay disclosed in company proxy statements.
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 |
|---|---|---|---|---|---|---|---|---|---|
| Feb. 7, 2023 | GPCR | P | 600 | $15.00 | $9,000 | 600 Direct | — | Acquired | 258.0% (price as of 2026-08-19) |
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 |
|---|---|---|---|---|---|---|---|
| Feb. 7, 2023 | GPCR | American Depositary Shares | Ordinary Shares (1,800) | — | — | 600 | Acquired |
| Feb. 2, 2023 | GPCR | Stock option (right to buy) | Ordinary Shares (750,000) | $15.00 | Feb. 1, 2033 | 750,000 | 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 |
|---|---|---|---|---|
| Feb. 2, 2023 | GPCR | Ordinary Shares | 1,063,664 | Direct |
| Feb. 2, 2023 | GPCR | Ordinary Shares | 1,554,586 | Indirect |
| Feb. 2, 2023 | GPCR | Stock option (right to buy)→ Ordinary Shares (100,000) | 100,000 | Direct |
| Feb. 2, 2023 | GPCR | Stock option (right to buy)→ Ordinary Shares (100,000) | 100,000 | Direct |
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
GPCR
CFO| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2024 | $482,300 | — | $698,761 | $1,401,433 | $217,068 | — | $13,800 | $2,813,362 |
| 2023 | $441,262 | — | — | $3,047,125 | $173,183 | — | $13,200 | $3,674,770 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.