BlackRock
IBIO icon

BlackRock’s iBio IBIO Stock Holding History

BlackRock’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 		$249K Buy
131,215
+88,488
+207% +$205K ﹤0.01% 4712
2025
Q4 		$82.5K Hold
42,727
– – ﹤0.01% 4950
2025
Q3 		$35.4K Hold
42,727
– – ﹤0.01% 5037
2025
Q2 		$32.6K Hold
42,727
– – ﹤0.01% 5066
2025
Q1 		$172K Buy
42,727
+37,153
+667% +$144K ﹤0.01% 4638
2024
Q4 		$13.7K Hold
5,574
– – ﹤0.01% 5146
2024
Q3 		$12.4K Hold
5,574
– – ﹤0.01% 4977
2024
Q2 		$11.8K Sell
5,574
-241
-4% -$518 ﹤0.01% 5054
2024
Q1 		$23.6K Sell
5,815
-1,072
-16% -$1.35K ﹤0.01% 5005
2023
Q4 		$9.44K Sell
6,887
-2
-0% -$9 ﹤0.01% 5149
2023
Q3 		$41.8K Sell
6,889
-8
-0.1% -$69 ﹤0.01% 5032
2023
Q2 		$84.1K Hold
6,897
– – ﹤0.01% 4973
2023
Q1 		$287K Sell
6,897
-6,573
-49% -$169K ﹤0.01% 4687
2022
Q4 		$120K Sell
13,470
-129
-0.9% -$4.36K ﹤0.01% 4984
2022
Q3 		$1.16M Buy
13,599
+5,678
+72% +$782K ﹤0.01% 4429
2022
Q2 		$1.05M Sell
7,921
-22,520
-74% -$3.39M ﹤0.01% 4516
2022
Q1 		$6.52M Sell
30,441
-512
-2% -$107K ﹤0.01% 3808
2021
Q4 		$8.5M Sell
30,953
-81
-0.3% -$30.9K ﹤0.01% 3771
2021
Q3 		$16.4M Sell
31,034
-73
-0.2% -$45.5K ﹤0.01% 3413
2021
Q2 		$23.5M Buy
31,107
+241
+0.8% +$176K ﹤0.01% 3205
2021
Q1 		$23.8M Buy
30,866
+7,716
+33% +$6.72M ﹤0.01% 3087
2020
Q4 		$12.2M Buy
23,150
+12,254
+112% +$9.98M ﹤0.01% 3274
2020
Q3 		$11.1M Buy
10,896
+2,240
+26% +$3.25M ﹤0.01% 3170
2020
Q2 		$9.61M Buy
8,656
+7,010
+426% +$4.58M ﹤0.01% 3201
2020
Q1 		$872K Buy
1,646
+178
+12% +$68.5K ﹤0.01% 3913
2019
Q4 		$183K Buy
1,468
+1,431
+3,868% +$194K ﹤0.01% 4335
2019
Q3 		$10K Buy
37
+1
+3% +$337 ﹤0.01% 4720
2019
Q2 		$13K Buy
36
+1
+3% +$404 ﹤0.01% 4736
2019
Q1 		$16K Buy
35
+1
+3% +$434 ﹤0.01% 4627
2018
Q4 		$13K Buy
34
+1
+3% +$387 ﹤0.01% 4629
2018
Q3 		$14K Buy
33
+1
+3% +$405 ﹤0.01% 4691
2018
Q2 		$15K Hold
32
– – ﹤0.01% 4707
2018
Q1 		$34K Sell
32
-3
-9% -$3.15K ﹤0.01% 4496
2017
Q4 		$32K Hold
35
– – ﹤0.01% 4496
2017
Q3 		$56K Buy
35
+1
+3% +$1.61K ﹤0.01% 4458
2017
Q2 		$65K Sell
34
-11
-24% -$21.6K ﹤0.01% 4481
2017
Q1 		$97K Buy
+45
New +$93.6K ﹤0.01% 4332

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

BlackRock's IBIO Position: Q1 2026 in Review

BlackRock increased its iBio (IBIO) stake by 207% in Q1 2026, buying an estimated $205K and bringing the position to 131,215 shares worth $249K. The position accounts for ﹤0.01% of the portfolio, ranked #4712.

BlackRock first reported a position in IBIO in Q1 2017 and has held it in 37 quarters since. The position peaked at $23.8M in Q1 2021. 52 funds tracked by Wall St. Rank hold IBIO as of Q1 2026.

  • BlackRock held 131,215 shares of iBio worth $249K as of Q1 2026.
  • BlackRock bought 88,488 iBio shares in Q1 2026, an estimated $205K.
  • iBio made up ﹤0.01% of BlackRock's portfolio in Q1 2026, its #4712 holding.
  • BlackRock first reported a position in iBio in Q1 2017 and has held it in 37 quarters since.
  • BlackRock's iBio position peaked at $23.8M in Q1 2021.
  • 52 funds tracked by Wall St. Rank held iBio as of Q1 2026.

Based on BlackRock's 13F filing for Q1 2026, filed 13 May 2026.