Los Angeles Capital Management’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	$237K	Sell	24,419 -70,987	-74%	-$651K	﹤0.01%	1094
2025 Q4	$1,000K	Sell	95,406 -24,018	-20%	-$245K	﹤0.01%	620
2025 Q3	$1.17M	Buy	119,424 +102,722	+615%	+$790K	﹤0.01%	662
2025 Q2	$101K	Buy	+16,702	New	+$125K	﹤0.01%	1252
2023 Q1	–	Sell	-5,576	Closed	-$336K	–	1273
2022 Q4	$336K	Sell	5,576 -530	-9%	-$31K	﹤0.01%	1005
2022 Q3	$370K	Buy	+6,106	New	+$193K	﹤0.01%	1013
2021 Q4	–	Sell	-17,645	Closed	-$1.26M	–	1464
2021 Q3	$1.26M	Sell	17,645 -16,850	-49%	-$1.05M	0.01%	665
2021 Q2	$1.77M	Sell	34,495 -4,680	-12%	-$146K	0.01%	620
2021 Q1	$984K	Sell	39,175 -400	-1%	-$7.53K	﹤0.01%	900
2020 Q4	$475K	Sell	39,575 -2,070	-5%	-$24.5K	﹤0.01%	1231
2020 Q3	$416K	Buy	41,645 +860	+2%	+$10.3K	﹤0.01%	1156
2020 Q2	$427K	Buy	40,785 +21,085	+107%	+$234K	﹤0.01%	1171
2020 Q1	$211K	Buy	+19,700	New	+$239K	﹤0.01%	1160
2015 Q1	–	Sell	-10,620	Closed	-$220K	–	1239
2014 Q4	$220K	Buy	+10,620	New	+$222K	﹤0.01%	1043