Jane Street

Jane Street’s Puma Biotechnology PBYI Stock Holding History

Jane Street’s Portfolio PBYI Stock Details PBYI Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$304K	Buy	+47,500	New	+$306K	﹤0.01%	9211
2021 Q1	–	Sell	-33,400	Closed	-$343K	–	9458
2020 Q4	$343K	Buy	33,400 +2,100	+7%	+$21.3K	﹤0.01%	6235
2020 Q3	$316K	Buy	31,300 +16,800	+116%	+$171K	﹤0.01%	5804
2020 Q2	$151K	Buy	+14,500	New	+$150K	﹤0.01%	6550
2020 Q1	–	Sell	-11,400	Closed	-$100K	–	5801
2019 Q4	$100K	Buy	+11,400	New	+$94.4K	﹤0.01%	4854
2018 Q3	–	Sell	-20,000	Closed	-$1.18M	–	5549
2018 Q2	$1.18M	Buy	+20,000	New	+$1.16M	﹤0.01%	2538
2018 Q1	–	Sell	-2,300	Closed	-$227K	–	5246
2017 Q4	$227K	Sell	2,300 -8,500	-79%	-$951K	﹤0.01%	4058
2017 Q3	$1.29M	Sell	10,800 -23,600	-69%	-$2.2M	﹤0.01%	2033
2017 Q2	$3.01M	Buy	+34,400	New	+$1.92M	0.01%	1126
2016 Q4	–	Sell	-12,100	Closed	-$811K	–	4459
2016 Q3	$811K	Buy	+12,100	New	+$612K	﹤0.01%	2213
2016 Q1	–	Sell	-14,800	Closed	-$1.16M	–	4509
2015 Q4	$1.16M	Buy	+14,800	New	+$1.16M	0.01%	1596

Other funds holding PBYI

Acorn Capital Advisors New York $352M AUM 299.18% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Acadian Asset Management

Acadian Asset Management Boston, Massachusetts $70.5B AUM 36% 1-Year Est. Return

Renaissance Technologies

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

American Century Companies

American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Millennium Management

Millennium Management New York $240B AUM 35.51% 1-Year Est. Return

Dimensional Fund Advisors

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

LSV Asset Management

LSV Asset Management Chicago, Illinois $46.4B AUM 27.74% 1-Year Est. Return