Guardian Metal Resources PLC
GMTL- Exchange
- NYSE
- Industry
- Metal Mining
- SEC CIK
- 0002039972
No open-market purchases or sales by Guardian Metal Resources PLC insiders were filed in the last 90 days; 47 institutions reported holding it in 13F filings for Q2 2026, worth $88.0M in total; no superinvestor holds it.
Key figures
- Insider buysOpen market, last 90 days
- 0
- Insider sellsOpen market, last 90 days
- 0
- 13F holdersQ2 2026, +16 vs. previous quarter
- 47
- 13F valueReported value at the end of Q2 2026
- $88.0M
- Superinvestors holdingAt the end of Q2 2026
- 0
Price chart
Superinvestors holding GMTL, Q2 2026
No superinvestor reported holding GMTL at the end of Q2 2026.
Latest insider trades
Open-market purchases and sales by Guardian Metal Resources PLC insiders from Form 4, newest first.
No open-market purchases or sales by Guardian Metal Resources PLC insiders are on file.
Top 10 13F holders, Q2 2026
The largest institutional positions in Guardian Metal Resources PLC at the end of Q2 2026; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Philosophy Capital Management LLC | 871,708 | $12.2M | 1.17% | +871,708 | New |
| Driehaus Capital Management LLC | 860,026 | $12.0M | 0.07% | +304,775+54.9% | Added |
| Potrero Capital Research LLC | 629,393 | $8.82M | 5.40% | +269,886+75.1% | Added |
| T. Rowe Price Investment Management, Inc. | 515,024 | $7.22M | 0.00% | −596,135−53.6% | Reduced |
| Aventail Capital Group, LP | 497,219 | $6.97M | 0.40% | +66,441+15.4% | Added |
| Ardsley Advisory Partners LP | 400,000 | $5.60M | 0.61% | +400,000 | New |
| Bank of Montreal | 243,279 | $4.74M | 0.00% | +233,279+2,332.8% | Added |
| Picton Mahoney Asset Management | 292,832 | $4.10M | 0.04% | −16,563−5.4% | Reduced |
| Diametric Capital, LP | 209,761 | $2.94M | 0.31% | +51,749+32.8% | Added |
| Westerly Capital Management, LLC | 200,000 | $2.80M | 0.52% | +199,000+19,900.0% | Added |