Charles Sermon
CIK 1687318 · View on SEC EDGAR ↗
First SEC filing: Jan. 2, 2024 · Latest: Jan. 2, 2024
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 |
|---|---|---|---|---|---|---|---|---|---|
| Sept. 13, 2024 | MREO | S | 20,946 | $4.22 | $88,392 | 219,061 Direct | -8.73% | Disposed | -92.7% (price as of 2026-08-19) |
| Sept. 12, 2024 | MREO | S | 9,980 | $4.47 | $44,611 | 240,007 Direct | -3.99% | Disposed | -93.1% (price as of 2026-08-19) |
| June 26, 2024 | MREO | S | 32,187 | $3.39 | $109,114 | 184,387 Direct | -14.86% | Disposed | -91.0% (price as of 2026-08-19) |
| June 25, 2024 | MREO | S | 14,202 | $3.69 | $52,405 | 216,574 Direct | -6.15% | Disposed | -91.7% (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. 1, 2026 | MREO | Share Options (Right to buy) | American Depositary Shares [F2] (315,750) | $0.44 | Feb. 1, 2036 | 315,750 | Acquired |
| Feb. 1, 2026 | MREO | Share Options (Right to buy) | American Depository Shares [F2] (295,000) | $0.44 | Feb. 1, 2036 | 295,000 | Acquired |
| Feb. 1, 2026 | MREO | Share Options (Right to buy) | American Depository Shares [F2] (105,250) | $1.00 | Feb. 1, 2036 | 105,250 | Acquired |
| Jan. 25, 2025 | MREO | Share Options (Right to buy) | American Depository Shares [F2] (262,000) | $2.91 | Jan. 25, 2035 | 262,000 | Acquired |
| Sept. 11, 2024 | MREO | Performance Based Restricted Stock Unit | American Depository Shares [F1] (65,600) | $0.00 | Jan. 25, 2025 | 65,600 | Disposed |
| June 21, 2024 | MREO | Performance Based Restricted Stock Unit | American Depository Shares [F1] (98,400) | $0.00 | Jan. 25, 2025 | 98,400 | Acquired |
| Jan. 25, 2024 | MREO | Share Options (Right to buy) | American Depository Shares [F2] (245,000) | $3.36 | Jan. 25, 2034 | 245,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 9 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Jan. 2, 2024 | MREO | American Depositary Shares representing Ordinary Shares [F1,F8] | 132,376 | Direct |
| Jan. 2, 2024 | MREO | Share Options (Right to buy)→ American Depositary Shares [F1] (154,474) | 154,474 | Direct |
| Jan. 2, 2024 | MREO | Share Options (Right to buy)→ American Depositary Shares [F1] (27,500) | 27,500 | Direct |
| Jan. 2, 2024 | MREO | Share Options (Right to buy)→ American Depositary Shares [F1] (27,500) | 27,500 | Direct |
| Jan. 2, 2024 | MREO | Share Options (Right to buy)→ American Depositary Shares [F1] (85,000) | 85,000 | Direct |
| Jan. 2, 2024 | MREO | Share Options (Right to buy)→ American Depositary Shares [F1] (150,000) | 150,000 | Direct |
| Jan. 2, 2024 | MREO | Share Options (Right to buy)→ American Depositary Shares [F1] (275,000) | 275,000 | Direct |
| Jan. 2, 2024 | MREO | Share Options (Right to buy)→ American Depositary Shares [F1] (400,000) | 400,000 | Direct |
| Jan. 2, 2024 | MREO | Performance Based Restricted Stock Unit→ American Depositary Shares [F1] (164,000) | 164,000 | 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 |
|---|---|---|---|---|---|---|---|---|
| 2025 | $472,935 | — | — | $635,475 | — | — | $63,502 | $1,171,912 |
| 2024 | $428,056 | — | — | $637,624 | $182,994 | — | $57,819 | $1,306,493 |
| 2023 | $415,651 | $162,104 | — | — | — | — | $48,031 | $1,088,249 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.