Mariner
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Mariner’s Eos Energy Enterprises EOSE Stock Holding History

Mariner’s Portfolio EOSE Stock Details EOSE Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$196K Sell
33,410
-58,796
-64% -$409K ﹤0.01% 3161
2026
Q1 		$457K Buy
92,206
+17,579
+24% +$189K ﹤0.01% 2558
2025
Q4 		$856K Buy
74,627
+8,340
+13% +$120K ﹤0.01% 2053
2025
Q3 		$755K Buy
66,287
+18,444
+39% +$126K ﹤0.01% 2110
2025
Q2 		$245K Buy
47,843
+11,447
+31% +$56.1K ﹤0.01% 2898
2025
Q1 		$138K Sell
36,396
-8,879
-20% -$43.3K ﹤0.01% 3120
2024
Q4 		$220K Hold
45,275
– – ﹤0.01% 2926
2024
Q3 		$134K Buy
45,275
+5,301
+13% +$11.2K ﹤0.01% 3033
2024
Q2 		$50.8K Hold
39,974
– – ﹤0.01% 3056
2024
Q1 		$41.2K Buy
39,974
+26,586
+199% +$27K ﹤0.01% 3048
2023
Q4 		$14.6K Sell
13,388
-3,819
-22% -$5.57K ﹤0.01% 3017
2023
Q3 		$37K Buy
17,207
+3,504
+26% +$10.5K ﹤0.01% 2800
2023
Q2 		$59.5K Buy
+13,703
New +$36K ﹤0.01% 2697
2023
Q1 		– Sell
-10,098
Closed -$15K – 2816
2022
Q4 		$15K Buy
+10,098
New +$13.1K ﹤0.01% 2702

Other funds holding EOSE

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Hudson Bay Capital Management
Hudson Bay Capital Management Stamford, Connecticut $36.8B AUM 42.13% 1-Year Est. Return
DCM
Driehaus Capital Management Chicago, Illinois $17.3B AUM 211.34% 1-Year Est. Return
Two Sigma Investments
Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Susquehanna International Group
Susquehanna International Group Bala Cynwyd, Pennsylvania $1.28T AUM 58.89% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
ECP
Electron Capital Partners New York $2.5B AUM 97.62% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Mariner's EOSE Position: Q2 2026 in Review

Mariner reduced its Eos Energy Enterprises (EOSE) stake by 64% in Q2 2026, selling an estimated $409K and leaving 33,410 shares worth $196K. The position accounts for ﹤0.01% of the portfolio, ranked #3161.

Mariner first reported a position in EOSE in Q4 2022 and has held it in 14 quarters since. The position peaked at $856K in Q4 2025. 349 funds tracked by Wall St. Rank hold EOSE as of Q2 2026.

  • Mariner held 33,410 shares of Eos Energy Enterprises worth $196K as of Q2 2026.
  • Mariner sold 58,796 Eos Energy Enterprises shares in Q2 2026, an estimated $409K.
  • Eos Energy Enterprises made up ﹤0.01% of Mariner's portfolio in Q2 2026, its #3161 holding.
  • Mariner first reported a position in Eos Energy Enterprises in Q4 2022 and has held it in 14 quarters since.
  • Mariner's Eos Energy Enterprises position peaked at $856K in Q4 2025.
  • 349 funds tracked by Wall St. Rank held Eos Energy Enterprises as of Q2 2026.

Based on Mariner's 13F filing for Q2 2026, filed 13 Aug 2026.