GMTL

At a glance

Guardian Metal Resources PLC (GMTL) is listed on NYSE American and classified in Other Precious Metals & Mining, part of the Basic Materials sector. It is headquartered in London, United Kingdom and has 7 employees. The company is worth $249.29M. Revenue was $0 in fiscal 2026. It reported a net loss of $10.04M. The share price is 71.8% below its 52-week high of $22.21. One of the 38 superinvestors we track held it at the end of Q2 2026: Israel Englander (Millennium Management), at $232.34K. No open-market insider trades in it were filed over the last 30 days.

Written from the data on this page: SEC filings (13F, Form 4, annual reports) and market prices.

Key metrics

Market cap

$249.29M

P/E

—

Forward P/E

—

P/B

2.6x

Dividend yield

0.00%

Payout

—

EPS

-$0.15

ROE

-17.96%

Profit margin

0.00%

Revenue growth

—

Beta

1.18

52-week high

$22.21

52-week low

$6.01

History

Year by year, from the annual reports; dividends from the payments themselves.

Investors holding this

Major managers that reported this stock in their latest 13F.

• IE
  Israel EnglanderHeld

  Millennium Management · Q2 2026
  $232.34K

  16.58K shares · 0.0% of portfolio

Others in the same sector

Companies of similar size in Basic Materials, for comparison. The columns are the same ones above, in the same order.

About the company