MAMO's three largest insider shareholders as of September 09, 2026 are David Shan (Chief Executive Officer, 32.16Mn shares), Yunhao Chen (Chief Financial Officer, 133.33K shares), Michael Glenn Smith (Vice President, 50.00K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | David Shan | Chief Executive Officer | 32,160,000 | 0 | 32,160,000 | 99.4% | 02 Jun, 2025 |
| 2 | Yunhao Chen | Chief Financial Officer | 133,334 | 0 | 133,334 | 0.4% | 02 Jun, 2025 |
| 3 | Michael Glenn Smith | Vice President | 50,000 | 0 | 50,000 | 0.2% | 02 Jun, 2025 |
| 4 | Mark Sheffield | Director | 9,000 | 0 | 9,000 | 0.0% | 02 Jun, 2025 |
| 5 | Ting Zhu | Director | 9,000 | 0 | 9,000 | 0.0% | 02 Jun, 2025 |
| 6 | Paolo Pietrogrande | Director | 9,000 | 0 | 9,000 | 0.0% | 03 Jun, 2025 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 29 May, 2025 | Paolo Pietrogrande | Director | Acquired A | 2,250 | $0.00 | $0 | 9,000 | Direct |
| 29 May, 2025 | Paolo Pietrogrande | Director | Acquired A | 2,250 | $0.00 | $0 | 9,000 | Direct |
| 29 May, 2025 | Paolo Pietrogrande | Director | Acquired A | 2,250 | $0.00 | $0 | 9,000 | Direct |
| 29 May, 2025 | David Shan | Chief Executive Officer | Acquired A | 37,500 | $0.00 | $0 | 32,160,000 | Direct |
| 29 May, 2025 | Yunhao Chen | Chief Financial Officer | Acquired A | 25,000 | $0.00 | $0 | 133,334 | Direct |
| 29 May, 2025 | Ting Zhu | Director | Acquired A | 2,250 | $0.00 | $0 | 9,000 | Direct |
| 29 May, 2025 | David Shan | Chief Executive Officer | Acquired A | 37,500 | $0.00 | $0 | 32,160,000 | Direct |
| 29 May, 2025 | David Shan | Chief Executive Officer | Acquired A | 37,500 | $0.00 | $0 | 32,160,000 | Direct |
| 29 May, 2025 | Michael Glenn Smith | Other | Acquired A | 25,000 | $0.00 | $0 | 50,000 | Direct |
| 29 May, 2025 | Mark Sheffield | Director | Acquired A | 2,250 | $0.00 | $0 | 9,000 | Direct |
| 29 May, 2025 | Mark Sheffield | Director | Acquired A | 2,250 | $0.00 | $0 | 9,000 | Direct |
| 29 May, 2025 | Michael Glenn Smith | Other | Acquired A | 25,000 | $0.00 | $0 | 50,000 | Direct |
| 29 May, 2025 | Ting Zhu | Director | Acquired A | 2,250 | $0.00 | $0 | 9,000 | Direct |
| 29 May, 2025 | Michael Glenn Smith | Other | Acquired A | 25,000 | $0.00 | $0 | 50,000 | Direct |
| 29 May, 2025 | Mark Sheffield | Director | Acquired A | 2,250 | $0.00 | $0 | 9,000 | Direct |
| 29 May, 2025 | Ting Zhu | Director | Acquired A | 2,250 | $0.00 | $0 | 9,000 | Direct |
| 20 Mar, 2025 | Ting Zhu | Director | Acquired A | 2,250 | $0.00 | $0 | 6,750 | Direct |
| 20 Mar, 2025 | Mark Sheffield | Director | Acquired A | 2,250 | $0.00 | $0 | 6,750 | Direct |
| 20 Mar, 2025 | Mark Sheffield | Director | Acquired A | 2,250 | $0.00 | $0 | 6,750 | Direct |
| 20 Mar, 2025 | Paolo Pietrogrande | Director | Acquired A | 2,250 | $0.00 | $0 | 6,750 | Direct |