Jane Street
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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
2026
Q1 		– Sell
-105,700
Closed -$204K – 12198
2025
Q4 		$204K Buy
+105,700
New +$144K ﹤0.01% 9683
2022
Q4 		– Sell
-55
Closed -$5K – 9549
2022
Q3 		$5K Buy
55
+12
+28% +$1.65K ﹤0.01% 9439
2022
Q2 		$6K Sell
43
-102
-70% -$15.3K ﹤0.01% 9391
2022
Q1 		$31K Sell
145
-184
-56% -$38.5K ﹤0.01% 9820
2021
Q4 		$91K Buy
329
+198
+151% +$75.5K ﹤0.01% 9297
2021
Q3 		$70K Buy
131
+13
+11% +$8.1K ﹤0.01% 9425
2021
Q2 		$89K Buy
118
+22
+23% +$16K ﹤0.01% 9317
2021
Q1 		$74K Sell
96
-45
-32% -$39.2K ﹤0.01% 8737
2020
Q4 		$74K Buy
+141
New +$115K ﹤0.01% 7267
2020
Q3 		– Sell
-647
Closed -$718K – 7477
2020
Q2 		$718K Buy
647
+447
+224% +$292K ﹤0.01% 4547
2020
Q1 		$106K Buy
+200
New +$77K ﹤0.01% 4920

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
EC
EcoR1 Capital San Francisco, California $2.36B AUM 204.53% 1-Year Est. Return
Millennium Management
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
Balyasny Asset Management Chicago, Illinois $77.1B AUM 42.89% 1-Year Est. Return
IC
Ikarian Capital Dallas, Texas $1.23B AUM 600.17% 1-Year Est. Return
Citadel Advisors
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.