Jacobs Levy Equity 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	$9.45M	Sell	972,017 -5,994	-0.6%	-$54.9K	0.04%	314
2025 Q4	$9.34M	Buy	978,011 +101,483	+12%	+$1.03M	0.04%	312
2025 Q3	$8.55M	Buy	876,528 +183,374	+26%	+$1.41M	0.03%	329
2025 Q2	$4.21M	Buy	693,154 +674,601	+3,636%	+$5.06M	0.02%	477
2025 Q1	$230K	Buy	+18,553	New	+$262K	﹤0.01%	1013
2022 Q1	–	Sell	-177,294	Closed	-$8.76M	–	1071
2021 Q4	$8.76M	Buy	177,294 +134,067	+310%	+$7.43M	0.06%	333
2021 Q3	$3.08M	Buy	+43,227	New	+$2.68M	0.02%	533
2021 Q2	–	Sell	-313,851	Closed	-$7.88M	–	1099
2021 Q1	$7.88M	Sell	313,851 -1,940	-0.6%	-$36.5K	0.06%	337
2020 Q4	$3.79M	Sell	315,791 -2,513	-0.8%	-$29.7K	0.03%	448
2020 Q3	$3.18M	Sell	318,304 -14,615	-4%	-$176K	0.03%	432
2020 Q2	$3.48M	Buy	332,919 +203	+0.1%	+$2.26K	0.04%	418
2020 Q1	$3.56M	Buy	332,716 +18,391	+6%	+$223K	0.05%	360
2019 Q4	$4.98M	Buy	314,325 +24,513	+8%	+$263K	0.05%	376
2019 Q3	$2.27M	Buy	289,812 +46,521	+19%	+$413K	0.03%	484
2019 Q2	$2.57M	Buy	243,291 +90,803	+60%	+$933K	0.04%	482
2019 Q1	$1.85M	Buy	152,488 +104,313	+217%	+$1.3M	0.03%	525
2018 Q4	$496K	Buy	+48,175	New	+$573K	0.01%	732