Jane Street’s iBio IBIO Stock Holding History

Jane Street’s Portfolio IBIO Stock Details IBIO Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2022 Q1	–	Sell	-55	Closed	-$15K	–	10613
2021 Q4	$15K	Sell	55 -7	-11%	-$2.67K	﹤0.01%	9850
2021 Q3	$33K	Sell	62 -67	-52%	-$41.7K	﹤0.01%	9657
2021 Q2	$98K	Buy	129 +59	+84%	+$43K	﹤0.01%	9278
2021 Q1	$54K	Buy	+70	New	+$61K	﹤0.01%	8817

Other funds holding IBIO

AAA

Affinity Asset Advisors New York $1.94B AUM 374.45% 1-Year Est. Return

FLSM

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

EcoR1 Capital San Francisco, California $2.36B AUM 204.53% 1-Year Est. Return

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

LGM

Logos Global Management San Francisco, California $2B AUM 444.09% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Balyasny Asset Management Chicago, Illinois $77.1B AUM 42.89% 1-Year Est. Return

Ikarian Capital Dallas, Texas $1.23B AUM 600.17% 1-Year Est. Return

Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return

SCM

Sio Capital Management New York $697M AUM 79.73% 1-Year Est. Return

Jane Street's IBIO Position: Q1 2026 in Review

Jane Street sold out of iBio (IBIO) in Q1 2026, closing a stake of 105,700 shares — an estimated $204K sold.

Jane Street first reported a position in IBIO in Q1 2020 and held it in 11 quarters. The position peaked at $718K in Q2 2020. 52 funds tracked by Wall St. Rank hold IBIO as of Q1 2026.

Jane Street reported no remaining iBio position as of Q1 2026 after selling out during the quarter.
Jane Street sold 105,700 iBio shares in Q1 2026, an estimated $204K.
Jane Street first reported a position in iBio in Q1 2020 and held it in 11 quarters.
Jane Street's iBio position peaked at $718K in Q2 2020.
52 funds tracked by Wall St. Rank held iBio as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.