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David Shan
Insider
Activist
First SEC filing: April 2, 2024 · Latest: June 6, 2025
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 |
|---|---|---|---|---|---|---|---|---|---|
| May 29, 2025 | MAMO | A | 37,500 | · | · | 32,160,000 Direct | +0.12% | Acquired | (price as of 2026-10-05) |
| Nov. 22, 2024 | MAMO | A | 37,500 | · | · | 32,122,500 Direct | +0.12% | Acquired | (price as of 2026-10-05) |
| Nov. 22, 2024 | MAMO | A | 37,500 | · | · | 34,037,500 Direct | +0.11% | Acquired | (price as of 2026-10-05) |
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.
Initial ownership (Form 3) 1 holding
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| April 2, 2024 | MAMO | Common Stock [F1,F2] | 34,000,000 | Direct |