Glass House Brands's three largest insider shareholders as of September 09, 2026 are William Tu (Svp, Corporate Controller, 3.82K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | William Tu | Svp, Corporate Controller | 3,818 | 0 | 3,818 | 100.0% | 04 Jun, 2026 |
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 |
|---|---|---|---|---|---|---|---|---|
| 01 Jun, 2026 | William Tu | Svp, Corporate Controller | Acquired M | 5,800 | — | — | 5,800 | Direct |
| 03 Jun, 2026 | William Tu | Svp, Corporate Controller | Disposed F | 1,982 | $11.37 | $22.54K | 3,818 | Direct |
| 01 Jun, 2026 | William Tu | Svp, Corporate Controller | Disposed M | 5,800 | $0.00 | $0 | 145,071 | Direct |
| 22 May, 2026 | William Tu | Svp, Corporate Controller | Disposed F | 2,910 | $10.29 | $29.94K | 15,837 | Direct |
| 22 May, 2026 | William Tu | Svp, Corporate Controller | Disposed S | 10,414 | $10.19 | $106.12K | 5,423 | Direct |
| 26 May, 2026 | William Tu | Svp, Corporate Controller | Disposed S | 5,423 | $10.48 | $56.83K | 0 | Direct |
| 19 May, 2026 | William Tu | Svp, Corporate Controller | Disposed S | 15,888 | $10.08 | $160.15K | 18,747 | Direct |
| 18 May, 2026 | William Tu | Svp, Corporate Controller | Acquired M | 8,333 | — | — | 34,635 | Direct |
| 18 May, 2026 | William Tu | Svp, Corporate Controller | Disposed M | 8,333 | $0.00 | $0 | 150,871 | Direct |