XTX Topco’s Atossa Therapeutics ATOS Stock Holding History

XTX Topco’s Portfolio ATOS Stock Details ATOS Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	–	Sell	-11,284	Closed	-$99.9K	–	3829
2025 Q4	$99.9K	Buy	11,284 +9,627	+581%	+$122K	﹤0.01%	2640
2025 Q3	$21.5K	Buy	1,657 +821	+98%	+$10.1K	﹤0.01%	2317
2025 Q2	$10.4K	Buy	+836	New	+$9.99K	﹤0.01%	2230
2025 Q1	–	Sell	-5,278	Closed	-$74.8K	–	2402
2024 Q4	$74.8K	Buy	5,278 +1,970	+60%	+$38.5K	0.01%	1824
2024 Q3	$75.4K	Buy	3,308 +1,664	+101%	+$33.6K	0.01%	1645
2024 Q2	$29.4K	Buy	+1,644	New	+$36.4K	﹤0.01%	1572
2024 Q1	–	Sell	-5,691	Closed	-$75.1K	–	1829
2023 Q4	$75.1K	Sell	5,691 -5,471	-49%	-$59K	0.02%	1166
2023 Q3	$123K	Buy	11,162 +8,536	+325%	+$124K	0.02%	1153
2023 Q2	$49.6K	Buy	+2,626	New	+$31.8K	0.01%	1237
2022 Q1	–	Sell	-1,152	Closed	-$28K	–	671
2021 Q4	$28K	Buy	+1,152	New	+$42.2K	0.02%	608
2021 Q2	–	Sell	-1,359	Closed	-$43K	–	802
2021 Q1	$43K	Buy	+1,359	New	+$49.7K	0.02%	632

Other funds holding ATOS

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Ameriprise Minneapolis, Minnesota $431B AUM 30.22% 1-Year Est. Return

BlackRock New York $5.7T AUM 30.48% 1-Year Est. Return

Renaissance Technologies

Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return

Geode Capital Management

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

UBS Group Zurich, Switzerland $564B AUM 30.12% 1-Year Est. Return

Millennium Management

Millennium Management New York $134B AUM 35.51% 1-Year Est. Return

Vanguard Fiduciary Trust Malvern, Pennsylvania $396B AUM

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Northern Trust Chicago, Illinois $757B AUM 28.64% 1-Year Est. Return