Jane Street

Jane Street’s Phathom Pharmaceuticals PHAT Stock Holding History

Jane Street’s Portfolio PHAT Stock Details PHAT Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	–	Sell	-384,770	Closed	-$4.86M	–	12652
2025 Q4	$6.38M	Buy	384,770 +277,508	+259%	+$3.96M	﹤0.01%	2886
2025 Q3	$1.26M	Buy	+107,262	New	+$1.11M	﹤0.01%	5826
2025 Q1	–	Sell	-77,869	Closed	-$473K	–	10332
2024 Q4	$632K	Buy	77,869 +50,027	+180%	+$620K	﹤0.01%	6280
2024 Q3	$503K	Sell	27,842 -28,006	-50%	-$391K	﹤0.01%	7168
2024 Q2	$575K	Buy	55,848 +30,827	+123%	+$318K	﹤0.01%	6785
2024 Q1	$266K	Sell	25,021 -40,233	-62%	-$342K	﹤0.01%	7741
2023 Q4	$596K	Sell	65,254 -5,530	-8%	-$47.6K	﹤0.01%	6465
2023 Q3	$734K	Buy	70,784 +59,584	+532%	+$817K	﹤0.01%	5635
2023 Q2	$160K	Sell	11,200 -2,145	-16%	-$24.7K	﹤0.01%	7777
2023 Q1	$95.3K	Sell	13,345 -7,338	-35%	-$64.5K	﹤0.01%	8251
2022 Q4	$232K	Sell	20,683 -10,886	-34%	-$112K	﹤0.01%	7438
2022 Q3	$350K	Buy	+31,569	New	+$301K	﹤0.01%	7334
2021 Q2	–	Sell	-8,193	Closed	-$308K	–	10247
2021 Q1	$308K	Buy	+8,193	New	+$343K	﹤0.01%	7668

Other funds holding PHAT

Frazier Life Sciences Management Palo Alto, California $3.89B AUM 201.1% 1-Year Est. Return

Medicxi Ventures Management St. Helier, Jersey $982M AUM 210.17% 1-Year Est. Return

Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

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

Millennium Management

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

Carlyle Group Washington, District of Columbia $10.6B AUM 11.25% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

NEA Management Company Timonium, Maryland $1.76B AUM 223.33% 1-Year Est. Return

683 Capital Management New York $1.92B AUM 85.52% 1-Year Est. Return

Ensign Peak Advisors

Ensign Peak Advisors Salt Lake City, Utah $53.7B AUM 29.47% 1-Year Est. Return