MAMO — Massimo Group
Price · 2024-08-26 → 2026-08-21
499 daily closes shownAnonymous view is capped at two years of history. A free account extends it to five, and Pro opens the whole archive back to 2024-04-02.
Performance
Technicals
Others in Industrials
Insider transactions (Form 4)
| date | insider | what | shares | price | value |
|---|---|---|---|---|---|
| 2025-05-29 | Shan David Chief Executive Officer | Grant or award | 37.5K | 0.00 | 0 |
| 2025-05-29 | Pietrogrande Paolo Director | Grant or award | 2.2K | 0.00 | 0 |
| 2025-05-29 | Sheffield Mark Director | Grant or award | 2.2K | 0.00 | 0 |
| 2025-05-29 | Zhu Ting Director | Grant or award | 2.2K | 0.00 | 0 |
| 2025-05-29 | Chen Yunhao Chief Financial Officer | Grant or award | 25.0K | 0.00 | 0 |
| 2025-05-29 | Smith Michael Glenn | Grant or award | 25.0K | 0.00 | 0 |
| 2025-03-20 | Sheffield Mark Director | Grant or award | 2.2K | 0.00 | 0 |
| 2025-03-20 | Zhu Ting Director | Grant or award | 2.2K | 0.00 | 0 |
| 2025-03-20 | Pietrogrande Paolo Director | Grant or award | 2.2K | 0.00 | 0 |
| 2025-01-02 | Sheffield Mark Director | Open-market purchase | 50 | — | — |
Open-market purchases (code P) are the informative ones. Grants, option exercises and tax withholding are compensation mechanics, not decisions. How to read a Form 4 →
Largest institutional holders
| manager | value | shares |
|---|---|---|
| GEODE CAPITAL MANAGEMENT, LLC | 122.0K | 122.4K |
| VANGUARD CAPITAL MANAGEMENT LLC | 42.4K | 42.6K |
| VANGUARD FIDUCIARY TRUST CO | 21.1K | 21.2K |
| UBS Group AG | 15.2K | 15.2K |
| BlackRock, Inc. | 14.2K | 14.3K |
| XTX Topco Ltd | 13.1K | 13.1K |
| RENAISSANCE TECHNOLOGIES LLC | 12.6K | 12.6K |
| NORTHERN TRUST CORP | 10.2K | 10.2K |
| Tower Research Capital LLC (TRC) | 9.0K | 9.1K |
| Advisory Services Network, LLC | 91 | 91 |
13F positions as of 2026-03-31, filed up to 45 days after quarter end. Long-only US equity — shorts and derivatives never appear. What 13F does and does not show →
Short selling
This is off-exchange short volume, not short interest: it is flow, not position, and 40–50% is normal because market makers short to fill your buy. Why that number misleads →
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