Mark Besca
CIK 1831351 · View on SEC EDGAR ↗
First SEC filing: Jan. 28, 2025 · Latest: June 17, 2026
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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 |
|---|---|---|---|---|---|---|---|---|---|
| Nov. 3, 2023 | MKL | P | 50 | $1316.90 | $65,845 | 785 Direct | +6.80% | Acquired | 36.0% (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 |
|---|---|---|---|---|---|---|---|
| May 29, 2025 | CLAR | Stock Option (right to purchase) | Common Stock (20,000) | $3.21 | May 29, 2035 | 20,000 | Acquired |
| Jan. 27, 2025 | LVS | Common Stock (Right to Buy) | Common Stock (8,136) | $43.45 | Jan. 26, 2035 | 8,136 | Acquired |
| Dec. 5, 2024 | CLAR | Stock Option (right to purchase) | Common Stock, par value $0.0001 per share ("Common Stock") (10,000) | $4.57 | Dec. 5, 2034 | 10,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 2 holdings
Securities held when first becoming an insider, per SEC Form 3.