Martin C.B. Mellish
CIK 1992320 · View on SEC EDGAR ↗
Insider
First SEC filing: March 20, 2026 · Latest: March 20, 2026
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 3 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
No open-market trades on record; showing all filings.
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| June 4, 2025 | MDAIW | A | 5,000 | $1.73 | $8,650 | 24,398 Direct | +25.78% | Acquired | -67.1% (price as of 2026-08-21) |
| April 30, 2025 | MDAIW | A | 9,699 | — | — | 19,398 Direct | +100.00% | Acquired | (price as of 2026-08-21) |
| Sept. 11, 2023 | MDAIW | J | 19,398 | — | — | 19,398 Direct | — | Acquired | (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 |
|---|---|---|---|---|---|---|---|
| Sept. 11, 2023 | MDAIW | RESTRICTED STOCK UNITS | COMMON STOCK (19,398) | $4.49 | — | 19,398 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 7 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| March 20, 2026 | NCNA | Ordinary Shares | 28 | Direct |
| March 20, 2026 | NCNA | American Depositary Shares→ Ordinary Shares (7) | 7 | Direct |
| March 20, 2026 | NCNA | Options→ Ordinary Shares (35,231,753) | 35,231,753 | Direct |
| March 20, 2026 | NCNA | Options→ Ordinary Shares (35,231,753) | 35,231,753 | Direct |
| March 20, 2026 | NCNA | Options→ Ordinary Shares (42,362,799) | 42,362,799 | Direct |
| March 20, 2026 | NCNA | Options→ Ordinary Shares (42,362,799) | 42,362,799 | Direct |
| July 16, 2024 | PDPA | Common Stock | 0 | Direct |