Stuart Naylor
CIK 1742771 · View on SEC EDGAR ↗
Insider
First SEC filing: June 8, 2018 · Latest: June 8, 2018
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
0 buys (P)
2 sells (S)
Net:
$-409,470
+ 9 non-open-market transactions below
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
9 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| July 7, 2026 | MGTX | S 10b5-1 | 25,112 | $14.90 | $374,169 | 640,846 Direct | -3.77% | Disposed | -4.0% (price as of 2026-08-19) |
| July 7, 2026 | MGTX | S 10b5-1 | 2,547 | $13.86 | $35,301 | 665,958 Direct | -0.38% | Disposed | 3.2% (price as of 2026-08-19) |
| Oct. 18, 2021 | MGTX | S 10b5-1 | 12,000 | $17.95 | $215,400 | 402,017 Direct | -2.90% | Disposed | -20.3% (price as of 2026-08-19) |
| July 20, 2021 | MGTX | S 10b5-1 | 9,390 | $15.06 | $141,413 | 414,017 Direct | -2.22% | Disposed | -5.0% (price as of 2026-08-19) |
| July 13, 2021 | MGTX | S 10b5-1 | 2,610 | $15.04 | $39,254 | 423,407 Direct | -0.61% | Disposed | -4.9% (price as of 2026-08-19) |
| June 8, 2021 | MGTX | S 10b5-1 | 5,040 | $15.01 | $75,650 | 426,017 Direct | -1.17% | Disposed | -4.7% (price as of 2026-08-19) |
| June 7, 2021 | MGTX | S 10b5-1 | 1,042 | $15.02 | $15,651 | 431,057 Direct | -0.24% | Disposed | -4.8% (price as of 2026-08-19) |
| April 30, 2021 | MGTX | S 10b5-1 | 741 | $15.01 | $11,122 | 432,099 Direct | +0.17% | Acquired | -4.7% (price as of 2026-08-19) |
| April 30, 2021 | MGTX | S 10b5-1 | 741 | $15.01 | $11,122 | 432,099 Direct | -0.17% | Disposed | -4.7% (price as of 2026-08-19) |
| April 29, 2021 | MGTX | S 10b5-1 | 1,405 | $15.02 | $21,103 | 432,840 Direct | -0.32% | Disposed | -4.8% (price as of 2026-08-19) |
| April 29, 2021 | MGTX | S 10b5-1 | 1,405 | $15.02 | $21,103 | 432,840 Direct | -0.32% | Disposed | -4.8% (price as of 2026-08-19) |
| April 28, 2021 | MGTX | S 10b5-1 | 3,772 | $15.14 | $57,108 | 434,245 Direct | -0.86% | Disposed | -5.5% (price as of 2026-08-19) |
| April 28, 2021 | MGTX | S 10b5-1 | 3,772 | $15.14 | $57,108 | 434,245 Direct | -0.86% | Disposed | -5.5% (price as of 2026-08-19) |
| Jan. 5, 2021 | MGTX | S 10b5-1 | 6,000 | $15.34 | $92,040 | 438,017 Direct | -1.35% | Disposed | -6.8% (price as of 2026-08-19) |
| Jan. 4, 2021 | MGTX | S 10b5-1 | 6,000 | $15.40 | $92,400 | 444,017 Direct | -1.33% | Disposed | -7.1% (price as of 2026-08-19) |
| Nov. 10, 2020 | MGTX | S 10b5-1 | 4,851 | $15.00 | $72,765 | 450,017 Direct | -1.07% | Disposed | -4.7% (price as of 2026-08-19) |
| Nov. 10, 2020 | MGTX | S 10b5-1 | 3,739 | $15.00 | $56,085 | 451,129 Direct | -0.82% | Disposed | -4.7% (price as of 2026-08-19) |
| Nov. 9, 2020 | MGTX | S 10b5-1 | 512 | $15.00 | $7,680 | 454,868 Direct | -0.11% | Disposed | -4.7% (price as of 2026-08-19) |
| Nov. 5, 2020 | MGTX | S 10b5-1 | 8,282 | $15.02 | $124,396 | 455,380 Direct | -1.79% | Disposed | -4.8% (price as of 2026-08-19) |
| Oct. 5, 2020 | MGTX | S 10b5-1 | 301 | $15.00 | $4,515 | 463,662 Direct | -0.06% | Disposed | -4.7% (price as of 2026-08-19) |
| July 21, 2020 | MGTX | S 10b5-1 | 7,698 | $15.04 | $115,778 | 463,963 Direct | -1.63% | Disposed | -4.9% (price as of 2026-08-19) |
| July 20, 2020 | MGTX | S 10b5-1 | 2,356 | $15.00 | $35,340 | 471,661 Direct | -0.50% | Disposed | -4.7% (price as of 2026-08-19) |
| May 11, 2020 | MGTX | S 10b5-1 | 11,304 | $15.39 | $173,969 | 474,017 Direct | -2.33% | Disposed | -7.1% (price as of 2026-08-19) |
| April 20, 2020 | MGTX | S 10b5-1 | 696 | $15.00 | $10,440 | 485,321 Direct | -0.14% | Disposed | -4.7% (price as of 2026-08-19) |
| Feb. 19, 2020 | MGTX | S 10b5-1 | 6,000 | $17.60 | $105,600 | 486,017 Direct | -1.22% | Disposed | -18.8% (price as of 2026-08-19) |
| Feb. 18, 2020 | MGTX | S 10b5-1 | 169 | $18.96 | $3,204 | 492,017 Direct | -0.03% | Disposed | -24.6% (price as of 2026-08-19) |
| Feb. 18, 2020 | MGTX | S 10b5-1 | 5,831 | $18.30 | $106,707 | 492,186 Direct | -1.17% | Disposed | -21.9% (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 |
|---|---|---|---|---|---|---|---|
| June 25, 2026 | MGTX | Restricted Share Units | Ordinary Shares (70,000) | — | — | 70,000 | Acquired |
| Jan. 8, 2022 | MGTX | Restricted Share Units | Ordinary Shares (80,000) | — | — | 80,000 | Disposed |
| Jan. 7, 2022 | MGTX | Restricted Share Units | Ordinary Shares (150,000) | — | — | 150,000 | Acquired |
| Jan. 14, 2021 | MGTX | Restricted Share Units | Ordinary Shares (95,000) | — | — | 95,000 | Acquired |
| Jan. 14, 2021 | MGTX | Stock Option (Right to Buy) | Ordinary Shares (35,000) | $16.43 | Jan. 13, 2031 | 35,000 | Acquired |
| Jan. 8, 2020 | MGTX | Restricted Share Units | Ordinary Shares (160,000) | — | — | 160,000 | Acquired |
| Dec. 29, 2018 | MGTX | Stock Option | Ordinary Shares (100,000) | $9.64 | Dec. 29, 2028 | 100,000 | 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 |
|---|---|---|---|---|
| June 8, 2018 | MGTX | Ordinary Shares | 498,017 | Direct |
| June 8, 2018 | MGTX | Stock Options→ Ordinary Shares (25,766) | 25,766 | Direct |
| June 8, 2018 | MGTX | Stock Options→ Ordinary Shares (12,883) | 12,883 | Direct |
| June 8, 2018 | MGTX | Stock Option→ Ordinary Shares (90,182) | 90,182 | Direct |
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2020 | $424,908 | $720,000 | — | — | — | — | $42,491 | $4,435,399 |
| 2018 | $352,000 | $750,000 | — | $1,108,372 | — | — | $35,200 | $2,245,572 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.