Sebastian Bernales
CIK 1995659 · View on SEC EDGAR ↗
First SEC filing: Feb. 8, 2024 · Latest: Feb. 8, 2024
On this page
Insider at
Insider transactions
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 |
|---|---|---|---|---|---|---|---|---|---|
| April 1, 2024 | MGX | A | 78,636 | — | — | 78,636 Direct | — | Acquired | (price as of 2026-08-20) |
| Feb. 13, 2024 | MGX | C | 106,627 | — | — | 0 Indirect | -100.00% | Disposed | (price as of 2026-08-20) |
| Feb. 13, 2024 | MGX | C | 1,143,905 | — | — | 0 Indirect | -100.00% | Disposed | (price as of 2026-08-20) |
| Feb. 13, 2024 | MGX | C | 2,062,387 | — | — | 0 Indirect | -100.00% | Disposed | (price as of 2026-08-20) |
| Feb. 13, 2024 | MGX | C | 423,469 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-20) |
| Feb. 13, 2024 | MGX | C | 119,699 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-20) |
| Feb. 13, 2024 | MGX | C | 353,005 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-20) |
| Feb. 13, 2024 | MGX | C | 1,896,445 | — | — | 1,896,445 Indirect | — | Acquired | (price as of 2026-08-20) |
| Feb. 13, 2024 | MGX | C | 513,004 | — | — | 769,845 Direct | +199.74% | Acquired | (price as of 2026-08-20) |
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 |
|---|---|---|---|---|---|---|---|
| April 1, 2024 | MGX | Stock Option (Right to Buy) | Common Stock (78,636) | $10.82 | March 31, 2034 | 78,636 | Acquired |
| Feb. 13, 2024 | MGX | Series B-1 Preferred Stock | Common Stock (61,037) | — | — | 106,627 | Disposed |
| Feb. 13, 2024 | MGX | Series B Preferred Stock | Common Stock (654,816) | — | — | 1,143,905 | Disposed |
| Feb. 13, 2024 | MGX | Series A-4 Preferred Stock | Common Stock (1,180,592) | — | — | 2,062,387 | Disposed |
| Feb. 13, 2024 | MGX | Series A-4 Preferred Stock | Common Stock (242,410) | — | — | 423,469 | Disposed |
| Feb. 13, 2024 | MGX | Series A-3 Preferred Stock | Common Stock (68,520) | — | — | 119,699 | Disposed |
| Feb. 13, 2024 | MGX | Series A-2 Preferred Stock | Common Stock (202,074) | — | — | 353,005 | Disposed |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 8 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Feb. 8, 2024 | MGX | Common Stock | 256,841 | Direct |
| Feb. 8, 2024 | MGX | Common Stock | 402,496 | Indirect |
| Feb. 8, 2024 | MGX | Series A-2 Preferred Stock→ Common Stock (202,074) | 202,074 | Direct |
| Feb. 8, 2024 | MGX | Series A-3 Preferred Stock→ Common Stock (68,520) | 68,520 | Direct |
| Feb. 8, 2024 | MGX | Series A-4 Preferred Stock→ Common Stock (242,410) | 242,410 | Direct |
| Feb. 8, 2024 | MGX | Series A-4 Preferred Stock→ Common Stock (1,180,592) | 1,180,592 | Indirect |
| Feb. 8, 2024 | MGX | Series B Preferred Stock→ Common Stock (654,816) | 654,816 | Indirect |
| Feb. 8, 2024 | MGX | Series B-1 Preferred Stock→ Common Stock (61,037) | 61,037 | Indirect |