Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
6 institutional managers reported holding GTBIF for the quarter ended Mar 31, 2026. Together they hold about 0% of shares outstanding; the top 10 hold 0%. 2 opened new positions; 2 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| Nano CAP NEW Millennium Growth Fund L P | 130.0k | 0.06% | $840k | added +7.4% | 2025 Q4 |
| Thompson Investment Management, INC. | 95.7k | 0.04% | $618k | unchanged | 2023 Q1 |
| Albert D Mason INC | 85.7k | 0.04% | $553k | trimmed -2.1% | 2019 Q1 |
| Ancora Advisors LLC | 1.5k | <0.01% | $10k | unchanged | 2025 Q3 |
| Ascentis Independent Advisors | 1.2k | <0.01% | $8k | opened | 2026 Q1 |
| Hurley Capital, LLC | 704 | <0.01% | $5k | opened | 2024 Q4 |
Full register at boothcheck.com/holders/GTBIF. Related filers are grouped using the filings' own included-manager declarations. Historically, several managers opening new positions in the same quarter said almost nothing about the quarter that followed (59,118 cases since 2013). A filed record, not a forecast. Nothing here is investment advice.