Ken Griffin
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Ken Griffin’s Eos Energy Enterprises EOSE Stock Holding History

Ken Griffin’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
Q1 		$41.5M Sell
8,371,800
-1,016,500
-11% -$10.9M 0.01% 1535
2025
Q4 		$108M Buy
9,388,300
+4,684,800
+100% +$67.3M 0.02% 813
2025
Q3 		$53.6M Buy
4,703,500
+2,681,700
+133% +$18.3M 0.01% 1312
2025
Q2 		$10.4M Buy
2,021,800
+839,300
+71% +$4.11M ﹤0.01% 2972
2025
Q1 		$4.47M Sell
1,182,500
-242,400
-17% -$1.18M ﹤0.01% 4065
2024
Q4 		$6.93M Buy
1,424,900
+192,000
+16% +$621K ﹤0.01% 3463
2024
Q3 		$3.66M Buy
1,232,900
+391,000
+46% +$827K ﹤0.01% 4455
2024
Q2 		$1.07M Buy
841,900
+194,600
+30% +$161K ﹤0.01% 6446
2024
Q1 		$667K Buy
647,300
+114,300
+21% +$116K ﹤0.01% 7766
2023
Q4 		$581K Sell
533,000
-257,700
-33% -$376K ﹤0.01% 7765
2023
Q3 		$1.7M Buy
790,700
+11,000
+1% +$32.9K ﹤0.01% 5520
2023
Q2 		$3.38M Buy
779,700
+706,600
+967% +$1.85M ﹤0.01% 4257
2023
Q1 		$188K Buy
73,100
+10,200
+16% +$17.7K ﹤0.01% 10289
2022
Q4 		$93.1K Sell
62,900
-25,600
-29% -$33.2K ﹤0.01% 11328
2022
Q3 		$148K Buy
88,500
+28,700
+48% +$62.6K ﹤0.01% 10714
2022
Q2 		$72K Buy
59,800
+6,300
+12% +$12.9K ﹤0.01% 11684
2022
Q1 		$224K Buy
53,500
+28,200
+111% +$116K ﹤0.01% 11253
2021
Q4 		$190K Sell
25,300
-87,100
-77% -$885K ﹤0.01% 11920
2021
Q3 		$1.58M Sell
112,400
-112,600
-50% -$1.67M ﹤0.01% 6964
2021
Q2 		$4.04M Sell
225,000
-23,300
-9% -$376K ﹤0.01% 4910
2021
Q1 		$4.9M Buy
248,300
+188,100
+312% +$4.21M ﹤0.01% 4298
2020
Q4 		$1.25M Buy
+60,200
New +$776K ﹤0.01% 6303

Other funds holding EOSE

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
DCM
Driehaus Capital Management Chicago, Illinois $13.6B AUM 173.98% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Two Sigma Investments
Two Sigma Investments New York $124B AUM 33.93% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 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 $893B AUM 36.07% 1-Year Est. Return
ECP
Electron Capital Partners New York $2.55B AUM 87.77% 1-Year Est. Return
HF
HRT Financial New York $40.1B AUM 58.22% 1-Year Est. Return

Ken Griffin's EOSE Position: Q1 2026 in Review

Ken Griffin increased its Eos Energy Enterprises (EOSE) stake by 148% in Q1 2026, buying an estimated $39.1M and bringing the position to 6,100,772 shares worth $30.3M. The position accounts for ﹤0.01% of the portfolio, ranked #1857.

Ken Griffin first reported a position in EOSE in Q1 2021 and has held it in 18 quarters since. The position peaked at $31.7M in Q3 2025. 317 funds tracked by Wall St. Rank hold EOSE as of Q1 2026.

  • Ken Griffin held 6,100,772 shares of Eos Energy Enterprises worth $30.3M as of Q1 2026.
  • Ken Griffin bought 3,638,784 Eos Energy Enterprises shares in Q1 2026, an estimated $39.1M.
  • Eos Energy Enterprises made up ﹤0.01% of Ken Griffin's portfolio in Q1 2026, its #1857 holding.
  • Ken Griffin first reported a position in Eos Energy Enterprises in Q1 2021 and has held it in 18 quarters since.
  • Ken Griffin's Eos Energy Enterprises position peaked at $31.7M in Q3 2025.
  • 317 funds tracked by Wall St. Rank held Eos Energy Enterprises as of Q1 2026.

Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.