Debra Yu
Insider
First SEC filing: March 23, 2026 · Latest: June 15, 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 |
|---|---|---|---|---|---|---|---|---|---|
| June 11, 2026 | MGTX | A | 60,000 | · | · | 60,000 Direct | · | Acquired | (price as of 2026-10-05) |
| June 12, 2025 | MGTX | A | 45,000 | · | · | 45,000 Direct | · | Acquired | (price as of 2026-10-05) |
| June 6, 2024 | MGTX | A | 45,000 | · | · | 45,000 Direct | · | Acquired | (price as of 2026-10-05) |
| June 8, 2023 | MGTX | A | 20,000 | · | · | 20,000 Direct | · | Acquired | (price as of 2026-10-05) |
| June 8, 2023 | MGTX | A | 20,000 | · | · | 20,000 Direct | · | Acquired | (price as of 2026-10-05) |
| April 25, 2022 | MGTX | A | 50,000 | · | · | 50,000 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 |
|---|---|---|---|---|---|---|---|
| June 11, 2026 | MGTX | Restricted Share Units | Ordinary Shares | · | · | 60,000 | Acquired |
| June 12, 2025 | MGTX | Restricted Share Units | Ordinary Shares | · | · | 45,000 | Acquired |
| June 6, 2024 | MGTX | Restricted Share Units | Ordinary Shares | · | · | 45,000 | Acquired |
| June 8, 2023 | MGTX | Stock Option (right to buy) | Ordinary Shares | $8.04 | June 8, 2033 | 20,000 | Acquired |
| June 8, 2023 | MGTX | Restricted Share Units | Ordinary Shares | · | · | 20,000 | Acquired |
| April 25, 2022 | MGTX | Stock Option (Right to Buy) | Ordinary Shares | $12.85 | April 25, 2032 | 50,000 | 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.