Renaissance Technologies
IBIO icon

Renaissance Technologies’s iBio IBIO Stock Holding History

Renaissance Technologies’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
Q2 		$355K Buy
+202,847
New +$363K ﹤0.01% 2722
2026
Q1 		– Sell
-353,339
Closed -$682K – 3444
2025
Q4 		$682K Buy
+353,339
New +$482K ﹤0.01% 2452
2024
Q2 		– Sell
-15,879
Closed -$64K – 3710
2024
Q1 		$64K Buy
+15,879
New +$20K ﹤0.01% 3446
2023
Q3 		– Sell
-2,305
Closed -$28K – 3859
2023
Q2 		$28K Sell
2,305
-1,090
-32% -$20.6K ﹤0.01% 3716
2023
Q1 		$141K Sell
3,395
-15,685
-82% -$404K ﹤0.01% 3388
2022
Q4 		$170K Buy
19,080
+16,504
+641% +$558K ﹤0.01% 3473
2022
Q3 		$219K Buy
2,576
+273
+12% +$37.6K ﹤0.01% 3349
2022
Q2 		$304K Buy
2,303
+1,433
+165% +$215K ﹤0.01% 3453
2022
Q1 		$186K Buy
+870
New +$182K ﹤0.01% 3667
2021
Q4 		– Sell
-303
Closed -$161K – 4041
2021
Q3 		$161K Buy
+303
New +$189K ﹤0.01% 3250
2020
Q2 		– Sell
-80
Closed -$42K – 3581
2020
Q1 		$42K Buy
+80
New +$30.8K ﹤0.01% 3339
2019
Q4 		– Sell
-80
Closed -$22K – 3600
2019
Q3 		$22K Buy
+80
New +$26.9K ﹤0.01% 3373
2015
Q1 		– Sell
-94
Closed -$321K – 3250
2014
Q4 		$321K Buy
+94
New +$502K ﹤0.01% 2560

Other funds holding IBIO

AAA
Affinity Asset Advisors New York $2.21B AUM 431.26% 1-Year Est. Return
CAM
Cormorant Asset Management Boston, Massachusetts $1.95B AUM 773.9% 1-Year Est. Return
SCM
Silverarc Capital Management Boston, Massachusetts $962M AUM 524.64% 1-Year Est. Return
VPC
Vestal Point Capital New York $4.28B AUM 239% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
FLSM
Frazier Life Sciences Management Palo Alto, California $4.59B AUM 237.58% 1-Year Est. Return
Ensign Peak Advisors
Ensign Peak Advisors Salt Lake City, Utah $60.8B AUM 42.06% 1-Year Est. Return
WP
Woodline Partners San Francisco, California $32.4B AUM 58.5% 1-Year Est. Return
Millennium Management
Millennium Management New York $276B AUM 44.8% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $875B AUM 40.89% 1-Year Est. Return

Renaissance Technologies's IBIO Position: Q2 2026 in Review

Renaissance Technologies opened a new position in iBio (IBIO) in Q2 2026: 202,847 shares worth $355K. The stake represents ﹤0.01% of the portfolio and ranks #2722 among its holdings. This is a return to the name: Renaissance Technologies previously reported a position in IBIO as recently as Q4 2025.

Renaissance Technologies first reported a position in IBIO in Q4 2014 and has held it in 13 quarters since. The position peaked at $682K in Q4 2025. 55 funds tracked by Wall St. Rank hold IBIO as of Q2 2026.

  • Renaissance Technologies held 202,847 shares of iBio worth $355K as of Q2 2026.
  • iBio was a new Renaissance Technologies position in Q2 2026.
  • iBio made up ﹤0.01% of Renaissance Technologies's portfolio in Q2 2026, its #2722 holding.
  • Renaissance Technologies first reported a position in iBio in Q4 2014 and has held it in 13 quarters since.
  • Renaissance Technologies's iBio position peaked at $682K in Q4 2025.
  • 55 funds tracked by Wall St. Rank held iBio as of Q2 2026.

Based on Renaissance Technologies's 13F filing for Q2 2026, filed 13 Aug 2026.