Vanguard Group
IBIO icon

Vanguard Group’s iBio IBIO Stock Holding History

Vanguard Group’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
2025
Q4 		$1.7M Buy
883,149
+609,079
+222% +$831K ﹤0.01% 3610
2025
Q3 		$227K Buy
274,070
+130,209
+91% +$100K ﹤0.01% 4108
2025
Q2 		$110K Hold
143,861
– – ﹤0.01% 4142
2025
Q1 		$578K Buy
143,861
+70,716
+97% +$275K ﹤0.01% 3850
2024
Q4 		$179K Buy
73,145
+37,147
+103% +$95.4K ﹤0.01% 4116
2024
Q3 		$79.9K Hold
35,998
– – ﹤0.01% 4217
2024
Q2 		$76K Buy
+35,998
New +$77.4K ﹤0.01% 4251
2023
Q4 		– Sell
-12,548
Closed -$76.2K – 4507
2023
Q3 		$76.2K Sell
12,548
-13,066
-51% -$113K ﹤0.01% 4374
2023
Q2 		$312K Sell
25,614
-350
-1% -$6.61K ﹤0.01% 4228
2023
Q1 		$1.08M Buy
25,964
+2,184
+9% +$56.2K ﹤0.01% 3891
2022
Q4 		$211K Buy
23,780
+10
+0% +$338 ﹤0.01% 4301
2022
Q3 		$2.02M Buy
23,770
+1,660
+8% +$228K ﹤0.01% 3737
2022
Q2 		$2.92M Buy
22,110
+3,640
+20% +$547K ﹤0.01% 3643
2022
Q1 		$3.96M Sell
18,470
-2,678
-13% -$560K ﹤0.01% 3640
2021
Q4 		$5.8M Buy
21,148
+125
+0.6% +$47.7K ﹤0.01% 3523
2021
Q3 		$11.1M Buy
21,023
+124
+0.6% +$77.2K ﹤0.01% 3176
2021
Q2 		$15.8M Sell
20,899
-226
-1% -$165K ﹤0.01% 2956
2021
Q1 		$16.3M Buy
21,125
+13,728
+186% +$12M ﹤0.01% 2898
2020
Q4 		$3.88M Buy
7,397
+2,046
+38% +$1.67M ﹤0.01% 3470
2020
Q3 		$5.43M Buy
5,351
+1,933
+57% +$2.8M ﹤0.01% 3106
2020
Q2 		$3.79M Buy
3,418
+1,520
+80% +$994K ﹤0.01% 3216
2020
Q1 		$1.01M Buy
1,898
+1,682
+779% +$647K ﹤0.01% 3491
2019
Q4 		$27K Sell
216
-91
-30% -$12.3K ﹤0.01% 4075
2019
Q3 		$83K Buy
307
+42
+16% +$14.1K ﹤0.01% 4047
2019
Q2 		$94K Buy
265
+9
+4% +$3.63K ﹤0.01% 4056
2019
Q1 		$112K Buy
256
+30
+13% +$13K ﹤0.01% 4004
2018
Q4 		$85K Sell
226
-128
-36% -$49.5K ﹤0.01% 4015
2018
Q3 		$150K Sell
354
-5
-1% -$2.02K ﹤0.01% 4035
2018
Q2 		$162K Sell
359
-9
-2% -$6.81K ﹤0.01% 4003
2018
Q1 		$397K Buy
368
+35
+11% +$36.7K ﹤0.01% 3830
2017
Q4 		$294K Hold
333
– – ﹤0.01% 3862
2017
Q3 		$532K Sell
333
-7
-2% -$11.3K ﹤0.01% 3733
2017
Q2 		$656K Sell
340
-12
-3% -$23.5K ﹤0.01% 3674
2017
Q1 		$758K Hold
352
– – ﹤0.01% 3651
2016
Q4 		$696K Hold
352
– – ﹤0.01% 3662
2016
Q3 		$987K Sell
352
-9
-2% -$28.2K ﹤0.01% 3575
2016
Q2 		$1.3M Buy
361
+3
+0.8% +$9.8K ﹤0.01% 3528
2016
Q1 		$1.02M Hold
358
– – ﹤0.01% 3594
2015
Q4 		$1M Hold
358
– – ﹤0.01% 3628
2015
Q3 		$1.22M Buy
358
+14
+4% +$51.9K ﹤0.01% 3569
2015
Q2 		$1.63M Buy
344
+20
+6% +$93K ﹤0.01% 3497
2015
Q1 		$1.23M Buy
324
+51
+19% +$173K ﹤0.01% 3578
2014
Q4 		$936K Buy
273
+75
+38% +$400K ﹤0.01% 3547
2014
Q3 		$609K Buy
198
+4
+2% +$9.76K ﹤0.01% 3662
2014
Q2 		$408K Buy
194
+12
+7% +$26K ﹤0.01% 3727
2014
Q1 		$490K Buy
182
+58
+47% +$155K ﹤0.01% 3659
2013
Q4 		$207K Hold
124
– – ﹤0.01% 3756
2013
Q3 		$269K Hold
124
– – ﹤0.01% 3652
2013
Q2 		$260K Buy
+124
New +$286K ﹤0.01% 3607

Other funds holding IBIO

EC
EcoR1 Capital San Francisco, California $2.36B AUM 204.53% 1-Year Est. Return
AAA
Affinity Asset Advisors New York $1.94B AUM 374.45% 1-Year Est. Return
LGM
Logos Global Management San Francisco, California $2B AUM 444.09% 1-Year Est. Return
FLSM
Frazier Life Sciences Management Palo Alto, California $3.89B AUM 201.1% 1-Year Est. Return
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
SCM
Sio Capital Management New York $697M AUM 79.73% 1-Year Est. Return
Ameriprise
Ameriprise Minneapolis, Minnesota $432B AUM 30.22% 1-Year Est. Return
Two Sigma Investments
Two Sigma Investments New York $124B AUM 33.93% 1-Year Est. Return
ACM
ADAR1 Capital Management Austin, Texas $1.7B AUM 340.85% 1-Year Est. Return

Vanguard Group's IBIO Position: Q4 2025 in Review

Vanguard Group increased its iBio (IBIO) stake by 222% in Q4 2025, buying an estimated $831K and bringing the position to 883,149 shares worth $1.7M. The position accounts for ﹤0.01% of the portfolio, ranked #3610.

Vanguard Group first reported a position in IBIO in Q2 2013 and has held it in 49 quarters since. The position peaked at $16.3M in Q1 2021. 50 funds tracked by Wall St. Rank hold IBIO as of Q4 2025.

  • Vanguard Group held 883,149 shares of iBio worth $1.7M as of Q4 2025.
  • Vanguard Group bought 609,079 iBio shares in Q4 2025, an estimated $831K.
  • iBio made up ﹤0.01% of Vanguard Group's portfolio in Q4 2025, its #3610 holding.
  • Vanguard Group first reported a position in iBio in Q2 2013 and has held it in 49 quarters since.
  • Vanguard Group's iBio position peaked at $16.3M in Q1 2021.
  • 50 funds tracked by Wall St. Rank held iBio as of Q4 2025.

Based on Vanguard Group's 13F filing for Q4 2025, filed 29 Jan 2026.