13F Insight
DOSSIER · 13F Holders · Q1 2026
GMTL

GUARDIAN METAL RES PLC

27 institutions still hold GUARDIAN METAL RES PLC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 401382106·27 13F holders·last filed Mar 31, 2026
Market cap
—
13F value held
$87M
visible holders
Holders
27
filers reporting
Concentration
30.18%
DONALD SMITH & CO., INC. #1
top holder share
AI Holders Summary · Q1 2026

27 institutions reported GMTL in Q1 2026. DONALD SMITH & CO., INC. leads at 30.2% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
DONALD SMITH & CO., INC.
CIK 0000814375
$26M1.5M0.47%Q1 202602
T. Rowe Price Investment Management, Inc.
CIK 0001897612
$19M1.1M0.01%Q1 202603
DRIEHAUS CAPITAL MANAGEMENT LLC
CIK 0000938206
$10M555K0.07%Q1 202604
Aventail Capital Group, LP
CIK 0001803822
$8M431K0.36%Q1 202605
ARDSLEY ADVISORY PARTNERS LP
CIK 0000900529
$6M400K0.58%Q2 202606
PICTON MAHONEY ASSET MANAGEMENT
CIK 0001539041
$5M309K0.04%Q1 202607
Diametric Capital, LP
CIK 0001719087
$3M158K0.72%Q1 202608
TEACHER RETIREMENT SYSTEM OF TEXAS
CIK 0000796848
$3M150K0.01%Q1 202609
JANE STREET GROUP, LLC
CIK 0001595888· Market maker
$2M107K0.00%Q1 202610
Mercuria Capital Strategies, LLC
CIK 0002048079
$1M65K0.43%Q1 202611
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
$921K53K0.00%Q1 202612
Monaco Asset Management SAM
CIK 0001803593
$733K42K0.14%Q1 202613
PRELUDE CAPITAL MANAGEMENT, LLC
CIK 0001387508
$568K32K0.04%Q1 202614
MANUFACTURERS LIFE INSURANCE COMPANY, THE
CIK 0000928047
$559K32K0.00%Q1 202615
Cambridge Investment Research Advisors, Inc.
CIK 0001419186
$546K31K0.00%Q1 202616
TD ASSET MANAGEMENT INC
CIK 0001056053
$356K20K0.00%Q1 202617
Northwest & Ethical Investments L.P.
CIK 0002033536
$309K16K0.01%Q1 202618
GILDER GAGNON HOWE & CO LLC
CIK 0000902464
$220K13K0.00%Q1 202619
BANK OF AMERICA CORP /DE/
CIK 0000070858
$204K12K0.00%Q1 202620
JPMORGAN CHASE & CO
CIK 0000019617
$202K12K0.00%Q1 2026
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