Marshall Wace’s OneStream Inc OS Stock Holding History

Marshall Wace’s Portfolio OS Stock Details OS Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	–	Sell	-990,806	Closed	-$23.8M	–	3847
2026 Q1	$23.8M	Sell	990,806 -1,795,349	-64%	-$42.1M	0.02%	636
2025 Q4	$51.2M	Buy	2,786,155 +304,238	+12%	+$5.8M	0.05%	340
2025 Q3	$45.7M	Buy	2,481,917 +492,815	+25%	+$10.8M	0.05%	347
2025 Q2	$56.3M	Buy	1,989,102 +1,968,548	+9,577%	+$49M	0.06%	272
2025 Q1	$439K	Sell	20,554 -431,536	-95%	-$11.1M	﹤0.01%	2129
2024 Q4	$12.9M	Buy	452,090 +314,172	+228%	+$9.64M	0.02%	705
2024 Q3	$4.68M	Buy	+137,918	New	+$4.06M	0.01%	1018

Marshall Wace's OS Position: Q2 2026 in Review

Marshall Wace sold out of OneStream Inc (OS) in Q2 2026, closing a stake of 990,806 shares — an estimated $23.8M sold.

Marshall Wace first reported a position in OS in Q3 2024 and held it in 7 quarters. The position peaked at $56.3M in Q2 2025. 0 funds tracked by Wall St. Rank hold OS as of Q2 2026.

Marshall Wace reported no remaining OneStream Inc position as of Q2 2026 after selling out during the quarter.
Marshall Wace sold 990,806 OneStream Inc shares in Q2 2026, an estimated $23.8M.
Marshall Wace first reported a position in OneStream Inc in Q3 2024 and held it in 7 quarters.
Marshall Wace's OneStream Inc position peaked at $56.3M in Q2 2025.
0 funds tracked by Wall St. Rank held OneStream Inc as of Q2 2026.

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