David John Marcus
Insider
First SEC filing: Nov. 7, 2025 · Latest: May 26, 2026
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net: $0
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 |
|---|---|---|---|---|---|---|---|---|---|
| Aug. 7, 2026 | MCS | G | 1,249 | · | · | 45,134 Indirect | +2.85% | Acquired | (price as of 2026-10-02) |
| May 21, 2026 | MCS | A | 1,391 | $17.97 | $24,996 | 106,476 Direct | +1.32% | Acquired | 50.6% (price as of 2026-10-02) |
| Dec. 31, 2025 | MCS | A | 4,174 | · | · | 105,085 Direct | +4.14% | Acquired | (price as of 2026-10-02) |
| Nov. 5, 2025 | MCS | A | 911 | · | · | 100,911 Direct | +0.91% | Acquired | (price as of 2026-10-02) |
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 |
|---|---|---|---|---|---|---|---|
| Aug. 7, 2026 | MCS | Class B Common Stock | Common Stock | · | · | 1,249 | 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.