Marshall Wace’s Eos Energy Enterprises EOSE Stock Holding History

Marshall Wace’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	$2.2M	Sell	373,872 -6,237,623	-94%	-$43.4M	﹤0.01%	1811
2026 Q1	$32.8M	Buy	6,611,495 +6,429,328	+3,529%	+$69.1M	0.03%	516
2025 Q4	$2.09M	Buy	182,167 +168,416	+1,225%	+$2.42M	﹤0.01%	1559
2025 Q3	$157K	Sell	13,751 -1,150,165	-99%	-$7.87M	﹤0.01%	2600
2025 Q2	$5.96M	Sell	1,163,916 -625,219	-35%	-$3.06M	0.01%	1058
2025 Q1	$6.76M	Buy	1,789,135 +895,317	+100%	+$4.36M	0.01%	930
2024 Q4	$4.34M	Buy	893,818 +542,718	+155%	+$1.76M	0.01%	1122
2024 Q3	$1.04M	Buy	+351,100	New	+$743K	﹤0.01%	1636
2023 Q4	–	Sell	-38,696	Closed	-$83.2K	–	2284
2023 Q3	$83.2K	Buy	+38,696	New	+$116K	﹤0.01%	2052
2023 Q2	–	Sell	-48,133	Closed	-$124K	–	2593
2023 Q1	$124K	Buy	+48,133	New	+$83.6K	﹤0.01%	2479
2021 Q2	–	Sell	-97,822	Closed	-$1.93M	–	2757
2021 Q1	$1.93M	Buy	+97,822	New	+$2.19M	0.01%	1352

Other funds holding EOSE

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

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 New York $138B AUM 41.87% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Susquehanna International Group Bala Cynwyd, Pennsylvania $1.28T AUM 58.89% 1-Year Est. Return

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 New York $1.89T AUM 35.08% 1-Year Est. Return

Marshall Wace's EOSE Position: Q2 2026 in Review

Marshall Wace reduced its Eos Energy Enterprises (EOSE) stake by 94% in Q2 2026, selling an estimated $43.4M and leaving 373,872 shares worth $2.2M. The position accounts for ﹤0.01% of the portfolio, ranked #1811.

Marshall Wace first reported a position in EOSE in Q1 2021 and has held it in 11 quarters since. The position peaked at $32.8M in Q1 2026. 348 funds tracked by Wall St. Rank hold EOSE as of Q2 2026.

Marshall Wace held 373,872 shares of Eos Energy Enterprises worth $2.2M as of Q2 2026.
Marshall Wace sold 6,237,623 Eos Energy Enterprises shares in Q2 2026, an estimated $43.4M.
Eos Energy Enterprises made up ﹤0.01% of Marshall Wace's portfolio in Q2 2026, its #1811 holding.
Marshall Wace first reported a position in Eos Energy Enterprises in Q1 2021 and has held it in 11 quarters since.
Marshall Wace's Eos Energy Enterprises position peaked at $32.8M in Q1 2026.
348 funds tracked by Wall St. Rank held Eos Energy Enterprises as of Q2 2026.

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