Chi Ming Lam insider trades: PMA Graphene Technology Group (PMA) stock sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Chi reports to the SEC
Open-market buys and sales
6 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Sep 25, 2026 | PMA | ↓ Sell | 167,865 | $1.30 | $218K | Held in individual account with broker | Sep 25, 2026 (0d) |
| Sep 23, 2026 | PMA | ↓ Sell | 126,000 | $1.30 | $164K | Held in individual account with broker | Sep 23, 2026 (0d) |
| Sep 15, 2026 | PMA | ↓ Sell | 99,114 | $1.30 | $129K | Held in individual account with broker | Sep 15, 2026 (0d) |
| Sep 11, 2026 | PMA | ↓ Sell | 270,000 | $1.27 | $344K | Held in individual account with broker | Sep 11, 2026 (0d) |
| Aug 21, 2026 | PMA | ↓ Sell | 320,000 | $1.29 | $413K | Held in individual account with broker | Sep 11, 2026 (21d) |
| Aug 21, 2026 | PMA | ↓ Sell | 320,000 | $1.29 | $413K | Held in individual account with broker | Aug 25, 2026 (4d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
About Chi Ming Lam's insider trades
Chi Ming Lam is a director at PMA Graphene Technology Group (PMA). Since Aug 21, 2026, Chi has reported no open-market purchases and 6 sales worth $1.7M on SEC Form 4. In the last 12 months: 6 sales ($1.7M).
Their filings also include other transactions (1 filing). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every PMA insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.