Marshall Wace’s iShares Biotechnology ETF IBB Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$321K	Sell	1,900 -17,000	-90%	-$2.91M	﹤0.01%	2632
2025 Q4	$3.19M	Sell	18,900 -59,800	-76%	-$9.71M	﹤0.01%	1355
2025 Q3	$11.4M	Buy	78,700 +73,900	+1,540%	+$10.1M	0.01%	873
2025 Q2	$607K	Buy	+4,800	New	+$589K	﹤0.01%	2077
2024 Q3	–	Sell	-56,600	Closed	-$7.77M	–	2704
2024 Q2	$7.77M	Buy	56,600 +47,900	+551%	+$6.39M	0.01%	832
2024 Q1	$1.18M	Buy	+8,700	New	+$1.19M	﹤0.01%	1585
2023 Q3	–	Sell	-7,500	Closed	-$952K	–	2423
2023 Q2	$952K	Buy	+7,500	New	+$974K	﹤0.01%	1735
2022 Q4	–	Sell	-7,800	Closed	-$914K	–	3149
2022 Q3	$914K	Buy	+7,800	New	+$969K	﹤0.01%	2452
2021 Q4	–	Sell	-39,300	Closed	-$6.36M	–	4041
2021 Q3	$6.36M	Buy	39,300 +27,500	+233%	+$4.63M	0.03%	809
2021 Q2	$1.93M	Buy	+11,800	New	+$1.82M	0.01%	1459
2021 Q1	–	Sell	-447,300	Closed	-$67.8M	–	2643
2020 Q4	$67.8M	Buy	+447,300	New	+$63.9M	0.37%	54