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Main Street Research LLC

Position in TMC — TMC the metals Co Inc.

CIK 1513211 SAUSALITO, CA

Position in TMC

as of Jun 30, 2026 · filed Jul 29, 2026
Position Value
$44,300
-$2,400 QoQ
Shares Held
10,000
0.0% QoQ
Ownership
0.002%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#147
of 216 holders
Holding Since
Sep 2022
5 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in TMC Over Time

Shares Held

Position Value (USD)

Position in Other Industrial Metals & Mining

Basic Materials · as of Jun 30, 2026

Main Street Research LLC holds $44,036,228 across 2 Other Industrial Metals & Mining names. TMC ranks #2 (0.1% of the industry book) .

# Ticker Company Shares Value (USD) Open
2 TMC
TMC the metals Co Inc.
This page
10,000 $44,300

All Filings in TMC

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5 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $44,300 10,000
2026-03-31 $46,700 10,000
2025-09-30 $63,700 10,000
2022-12-31 $11,550 15,000
2022-09-30 $10,500 10,000