Mariner
TMC icon

Mariner’s TMC The Metals Company TMC Stock Holding History

Mariner’s Portfolio TMC Stock Details TMC Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		– Sell
-92,845
Closed -$573K – 3831
2025
Q4 		$573K Buy
92,845
+39,249
+73% +$276K ﹤0.01% 2353
2025
Q3 		$341K Buy
53,596
+8,386
+19% +$50.3K ﹤0.01% 2710
2025
Q2 		$298K Sell
45,210
-109,412
-71% -$420K ﹤0.01% 2731
2025
Q1 		$266K Buy
154,622
+38,441
+33% +$64.6K ﹤0.01% 2741
2024
Q4 		$130K Sell
116,181
-46,078
-28% -$43.4K ﹤0.01% 3123
2024
Q3 		$172K Buy
162,259
+10,378
+7% +$11.6K ﹤0.01% 2973
2024
Q2 		$205K Hold
151,881
– – ﹤0.01% 2780
2024
Q1 		$217K Sell
151,881
-300
-0.2% -$418 ﹤0.01% 2698
2023
Q4 		$167K Hold
152,181
– – ﹤0.01% 2742
2023
Q3 		$151K Buy
152,181
+50,779
+50% +$72.9K ﹤0.01% 2597
2023
Q2 		$165K Hold
101,402
– – ﹤0.01% 2525
2023
Q1 		$84K Buy
101,402
+4
+0% +$4 ﹤0.01% 2602
2022
Q4 		$78K Buy
101,398
+5,912
+6% +$5.11K ﹤0.01% 2561
2022
Q3 		$100K Buy
+95,486
New +$92.1K ﹤0.01% 2206
2022
Q2 		– Sell
-95,645
Closed -$248K – 1450
2022
Q1 		$248K Buy
+95,645
New +$171K ﹤0.01% 1330

Other funds holding TMC

First Manhattan
First Manhattan New York $39.2B AUM 21.04% 1-Year Est. Return
Jane Street
Jane Street New York $1.21T AUM 78.12% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $875B AUM 40.89% 1-Year Est. Return
Millennium Management
Millennium Management New York $276B AUM 44.8% 1-Year Est. Return
Baird Financial Group
Baird Financial Group Milwaukee, Wisconsin $72.7B AUM 26.4% 1-Year Est. Return
Marshall Wace
Marshall Wace London, United Kingdom $127B AUM 46.06% 1-Year Est. Return
Susquehanna International Group
Susquehanna International Group Bala Cynwyd, Pennsylvania $1.28T AUM 58.89% 1-Year Est. Return
Tudor Investment Corp
Tudor Investment Corp Stamford, Connecticut $71.9B AUM 42.37% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Mariner's TMC Position: Q1 2026 in Review

Mariner sold out of TMC The Metals Company (TMC) in Q1 2026, closing a stake of 92,845 shares — an estimated $573K sold.

Mariner first reported a position in TMC in Q1 2022 and held it in 15 quarters. The position peaked at $573K in Q4 2025. 209 funds tracked by Wall St. Rank hold TMC as of Q1 2026.

  • Mariner reported no remaining TMC The Metals Company position as of Q1 2026 after selling out during the quarter.
  • Mariner sold 92,845 TMC The Metals Company shares in Q1 2026, an estimated $573K.
  • Mariner first reported a position in TMC The Metals Company in Q1 2022 and held it in 15 quarters.
  • Mariner's TMC The Metals Company position peaked at $573K in Q4 2025.
  • 209 funds tracked by Wall St. Rank held TMC The Metals Company as of Q1 2026.

Based on Mariner's 13F filing for Q1 2026, filed 13 May 2026.