Two Sigma Investments
IBIO icon

Two Sigma Investments’s iBio IBIO Stock Holding History

Two Sigma Investments’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 		$777K Sell
408,858
-47,475
-10% -$110K ﹤0.01% 3439
2025
Q4 		$881K Buy
+456,333
New +$623K ﹤0.01% 3009
2025
Q2 		– Sell
-13,484
Closed -$54.2K – 3335
2025
Q1 		$54.2K Buy
+13,484
New +$52.4K ﹤0.01% 3038
2023
Q1 		– Sell
-2,673
Closed -$23.8K – 3067
2022
Q4 		$23.8K Buy
+2,673
New +$90.4K ﹤0.01% 2662

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

Two Sigma Investments's IBIO Position: Q1 2026 in Review

Two Sigma Investments reduced its iBio (IBIO) stake by 10% in Q1 2026, selling an estimated $110K and leaving 408,858 shares worth $777K. The position accounts for ﹤0.01% of the portfolio, ranked #3439.

Two Sigma Investments first reported a position in IBIO in Q4 2022 and has held it in 4 quarters since. The position peaked at $881K in Q4 2025. 52 funds tracked by Wall St. Rank hold IBIO as of Q1 2026.

  • Two Sigma Investments held 408,858 shares of iBio worth $777K as of Q1 2026.
  • Two Sigma Investments sold 47,475 iBio shares in Q1 2026, an estimated $110K.
  • iBio made up ﹤0.01% of Two Sigma Investments's portfolio in Q1 2026, its #3439 holding.
  • Two Sigma Investments first reported a position in iBio in Q4 2022 and has held it in 4 quarters since.
  • Two Sigma Investments's iBio position peaked at $881K in Q4 2025.
  • 52 funds tracked by Wall St. Rank held iBio as of Q1 2026.

Based on Two Sigma Investments's 13F filing for Q1 2026, filed 15 May 2026.