PMA insider trading — PMA Graphene Technology Group Inc.
Over the last 90 days, insiders at PMA Graphene Technology Group Inc. (PMA) made 0 open-market purchases worth $0 and 12 open-market sales worth $1.27M, making them net sellers by $1.27M. The largest sale was by Lam Chi Ming (Director), who sold 150,000 shares for $188K on Sep 9, 2026.
Updated Oct 16, 2026.
Recent PMA insider transactions
Every Form 4 filed by PMA Graphene Technology Group Inc. officers, directors and 10% owners in the last 90 days, newest first. P = open-market purchase, S = open-market sale; other codes are awards, option exercises, tax withholding or gifts.
| Trade date | Insider | Role | Type | Ownership | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|---|
| Sep 25, 2026 | Lam Chi Ming | Director | S · Sale | Indirect | 47,865 | $1.30 | $62K | Form 4 |
| Sep 24, 2026 | Lam Chi Ming | Director | S · Sale | Indirect | 120,000 | $1.30 | $156K | Form 4 |
| Sep 23, 2026 | Lam Chi Ming | Director | S · Sale | Indirect | 6,000 | $1.30 | $8K | Form 4 |
| Sep 22, 2026 | Lam Chi Ming | Director | S · Sale | Indirect | 120,000 | $1.30 | $156K | Form 4 |
| Sep 15, 2026 | Lam Chi Ming | Director | S · Sale | Indirect | 99,114 | $1.30 | $129K | Form 4 |
| Sep 11, 2026 | Lam Chi Ming | Director | S · Sale | Indirect | 120,000 | $1.30 | $156K | Form 4 |
| Sep 9, 2026 | Lam Chi Ming | Director | S · Sale | Indirect | 150,000 | $1.25 | $188K | Form 4 |
| Aug 21, 2026 | Lam Chi Ming | Director | S · Sale | Indirect | 100,000 | $1.32 | $132K | Form 4 |
| Aug 18, 2026 | Lam Chi Ming | Director | S · Sale | Indirect | 5,000 | $1.62 | $8K | Form 4 |
| Aug 17, 2026 | Lam Chi Ming | Director | S · Sale | Indirect | 15,000 | $1.75 | $26K | Form 4 |
| Aug 14, 2026 | Lam Chi Ming | Director | S · Sale | Indirect | 100,000 | $1.37 | $137K | Form 4 |
| Aug 13, 2026 | Lam Chi Ming | Director | S · Sale | Indirect | 100,000 | $1.10 | $110K | Form 4 |
PMA insider trading FAQ
Are insiders buying PMA stock?
Not on the open market. In the last 90 days, PMA Graphene Technology Group Inc. insiders made no open-market purchases, and 12 open-market sales totaling $1.27M. Purchases with the insider's own money are generally seen as a stronger signal than sales, which happen for many reasons (taxes, diversification, planned 10b5-1 sales).
Who are the insiders trading PMA?
Recent sellers: Lam Chi Ming.
Where does PMA insider trading data come from?
Every transaction comes from SEC Form 4 filings on EDGAR. Company officers, directors and 10% owners must file a Form 4 within two business days of buying or selling. InsiderBolt reads these filings directly from the SEC.
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Insider trading data is for informational purposes only and is not investment advice. Filings can be amended; always confirm details on SEC EDGAR.