Qube Research & Technologies (QRT)’s Prothena Corp PRTA Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$5.97M	Buy	614,603 +206,914	+51%	+$1.9M	0.01%	1568
2025 Q4	$3.89M	Buy	407,689 +153,444	+60%	+$1.56M	0.01%	1914
2025 Q3	$2.48M	Sell	254,245 -160,583	-39%	-$1.23M	﹤0.01%	2132
2025 Q2	$2.52M	Buy	+414,828	New	+$3.11M	﹤0.01%	2100
2024 Q4	–	Sell	-13,320	Closed	-$223K	–	3818
2024 Q3	$223K	Buy	+13,320	New	+$286K	﹤0.01%	2539
2024 Q2	–	Sell	-195,446	Closed	-$4.84M	–	4531
2024 Q1	$4.84M	Sell	195,446 -8,236	-4%	-$245K	0.01%	1249
2023 Q4	$7.4M	Buy	203,682 +119,029	+141%	+$4.58M	0.02%	857
2023 Q3	$4.08M	Buy	84,653 +43,256	+104%	+$2.57M	0.01%	1031
2023 Q2	$2.83M	Buy	41,397 +33,159	+403%	+$2.14M	0.01%	910
2023 Q1	$399K	Buy	8,238 +1,038	+14%	+$54.8K	﹤0.01%	1638
2022 Q4	$434K	Buy	+7,200	New	+$422K	﹤0.01%	1528
2022 Q3	–	Sell	-13,878	Closed	-$377K	–	2910
2022 Q2	$377K	Buy	13,878 +7,909	+133%	+$231K	﹤0.01%	1523
2022 Q1	$218K	Sell	5,969 -13,864	-70%	-$500K	﹤0.01%	1919
2021 Q4	$980K	Buy	+19,833	New	+$1.1M	0.01%	1200
2020 Q4	–	Sell	-14,246	Closed	-$142K	–	2123
2020 Q3	$142K	Sell	14,246 -5,205	-27%	-$62.6K	﹤0.01%	1453
2020 Q2	$203K	Buy	+19,451	New	+$216K	﹤0.01%	1429