Castleark Management’s Penumbra PEN Stock Holding History

Castleark Management’s Portfolio PEN Stock Details PEN Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	–	Sell	-2,686	Closed	-$835K	–	329
2025 Q4	$835K	Buy	2,686 +960	+56%	+$265K	0.02%	236
2025 Q3	$437K	Sell	1,726 -22,865	-93%	-$5.77M	0.01%	245
2025 Q2	$6.31M	Buy	24,591 +9,346	+61%	+$2.54M	0.19%	102
2025 Q1	$4.08M	Buy	+15,245	New	+$4.12M	0.14%	141
2023 Q4	–	Sell	-4,718	Closed	-$1.14M	–	303
2023 Q3	$1.14M	Sell	4,718 -16,412	-78%	-$4.56M	0.06%	184
2023 Q2	$7.27M	Sell	21,130 -4,100	-16%	-$1.26M	0.33%	59
2023 Q1	$7.03M	Hold	25,230	–	–	0.35%	55
2022 Q4	$5.61M	Buy	+25,230	New	+$4.93M	0.29%	83
2020 Q2	–	Sell	-25,792	Closed	-$4.16M	–	372
2020 Q1	$4.16M	Buy	+25,792	New	+$4.35M	0.25%	116
2018 Q3	–	Sell	-25,890	Closed	-$3.58M	–	401
2018 Q2	$3.58M	Buy	+25,890	New	+$3.69M	0.11%	215
2016 Q4	–	Sell	-67,335	Closed	-$5.12M	–	410
2016 Q3	$5.12M	Buy	+67,335	New	+$4.65M	0.15%	176

Other funds holding PEN

BlackRock New York $5.7T AUM 30.48% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

HBK Investments Dallas, Texas $7.94B AUM 55.6% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Millennium Management

Millennium Management New York $134B AUM 35.51% 1-Year Est. Return

Baillie Gifford & Co

Baillie Gifford & Co Edinburgh, United Kingdom $97.9B AUM 20.73% 1-Year Est. Return

Geode Capital Management

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Balyasny Asset Management

Balyasny Asset Management Chicago, Illinois $50.9B AUM 42.89% 1-Year Est. Return

Goldman Sachs New York $761B AUM 31.28% 1-Year Est. Return