IBIO Institutional Ownership & Shareholders
IBIO INC (IBIO) is currently held by 54 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $57.17M based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Affinity Asset Advisors, Llc is currently the largest disclosed institutional shareholder of IBIO tracked by InsiderSet, reporting ownership valued at approximately $7.01M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $3.08M, representing an estimated loss of -56.07% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 73% of the total disclosed IBIO value among the investors covered in this analysis. Major shareholders include Affinity Asset Advisors, Llc, Cormorant Asset Management, Lp, Silverarc Capital Management, Llc, and several other long-term asset managers with concentrated positions in IBIO INC (IBIO).
This page ranks the largest institutional IBIO shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
54
Total Reported Value
$57.17M
Largest Holder
Affinity Asset Advisors, Llc
Largest Position
$7.01M
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
78
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Affinity Asset Advisors, Llc | 0.34% | 4,007,881 | $7,013,792 | $3,080,858 | -$3,932,934 | -56.07% | |
| Cormorant Asset Management, Lp | 0.32% | 3,570,000 | $6,247,500 | $2,744,259 | -$3,503,241 | -56.07% | |
| Silverarc Capital Management, Llc | 0.69% | 3,520,490 | $6,160,858 | $2,706,201 | -$3,454,657 | -56.07% | |
| Vestal Point Capital, Lp | 0.11% | 2,600,000 | $4,550,000 | $1,998,620 | -$2,551,380 | -56.07% | |
| Vanguard Capital Management Llc | 0.00% | 2,098,151 | $3,671,764 | $1,612,849 | -$2,058,915 | -56.07% | |
| Frazier Life Sciences Management, L.P. | 0.07% | 1,953,467 | $3,418,567 | $1,501,630 | -$1,916,937 | -56.07% | |
| Woodline Partners Lp | 0.01% | 1,776,547 | $3,108,957 | $1,365,632 | -$1,743,325 | -56.07% | |
| Millennium Management Llc | 0.00% | 1,651,473 | $2,890,078 | $1,269,487 | -$1,620,591 | -56.07% | |
| Citadel Advisors Llc | 0.00% | 1,384,029 | $2,422,051 | $1,063,903 | -$1,358,148 | -56.07% | |
| Balyasny Asset Management L.P. | 0.00% | 1,170,893 | $2,049,063 | $900,065 | -$1,148,998 | -56.07% | |
| Bank Of America Corp | 0.00% | 1,121,492 | $1,962,611 | $862,091 | -$1,100,520 | -56.07% | |
| Ikarian Capital, Llc | 0.27% | 957,062 | $1,674,859 | $735,694 | -$939,165 | -56.07% | |
| Sio Capital Management, Llc | 0.27% | 904,268 | $1,582,469 | $695,111 | -$887,358 | -56.07% | |
| Marshall Wace, Llp | 0.00% | 904,132 | $1,582,233 | $695,006 | -$887,227 | -56.07% | |
| Geode Capital Management, Llc | 0.00% | 500,816 | $876,650 | $384,977 | -$491,673 | -56.09% | |
| Walleye Capital Llc | 0.00% | 500,375 | $875,656 | $384,638 | -$491,018 | -56.07% | |
| Squarepoint Ops Llc | 0.00% | 498,872 | $873,026 | $383,483 | -$489,543 | -56.07% | |
| Two Sigma Investments, Lp | 0.00% | 400,667 | $701,167 | $307,993 | -$393,174 | -56.07% | |
| Ally Bridge Group (Ny) Llc | 0.88% | 390,147 | $682,757 | $299,906 | -$382,851 | -56.07% | |
| Adar1 Capital Management, Llc | 0.03% | 375,531 | $657,179 | $288,671 | -$368,508 | -56.07% | |
| Verdad Advisers, Lp | 0.50% | 298,927 | $523,122 | $229,785 | -$293,337 | -56.07% | |
| Vanguard Fiduciary Trust Co | 0.00% | 286,875 | $502,031 | $220,521 | -$281,510 | -56.07% | |
| Boothbay Fund Management, Llc | 0.01% | 254,412 | $445,221 | $195,567 | -$249,654 | -56.07% | |
| Blackrock, Inc. | 0.00% | 242,016 | $423,528 | $186,038 | -$237,490 | -56.07% | |
| Renaissance Technologies LLC | Jim Simons | 0.00% | 202,847 | $354,982 | $155,928 | -$199,054 | -56.07% |
| Goldman Sachs Group Inc | 0.00% | 200,455 | $350,796 | $154,090 | -$196,706 | -56.07% | |
| State Street Corp | 0.00% | 170,799 | $298,898 | $131,293 | -$167,605 | -56.07% | |
| Dafna Capital Management Llc | 0.06% | 170,053 | $297,593 | $130,720 | -$166,873 | -56.07% | |
| Noesis Capital Mangement Corp | 0.03% | 249,000 | $293,820 | $191,406 | -$102,414 | -34.86% | |
| Northern Trust Corp | 0.00% | 111,319 | $194,808 | $85,571 | -$109,237 | -56.07% | |
| Atom Investors Lp | 0.02% | 101,557 | $177,725 | $78,067 | -$99,658 | -56.07% | |
| Xtx Topco Ltd | 0.00% | 57,842 | $101,224 | $44,463 | -$56,761 | -56.07% | |
| Headlands Technologies Llc | 0.01% | 47,413 | $82,973 | $36,446 | -$46,527 | -56.07% | |
| Two Sigma Securities, Llc | 0.00% | 16,151 | $28,264 | $12,415 | -$15,849 | -56.07% | |
| Innovative Asset Advisors Group, Llc | 0.01% | 15,000 | $26,250 | $11,531 | -$14,720 | -56.07% | |
| Spark Investment Management Llc | 0.05% | 13,500 | $23,625 | $10,377 | -$13,248 | -56.07% | |
| Bank Of New York Mellon Corp | 0.00% | 10,637 | $18,614 | $8,177 | -$10,437 | -56.07% | |
| Jpmorgan Chase & Co | 0.00% | 5,897 | $10,201 | $4,533 | -$5,668 | -55.56% | |
| Vanguard Global Advisers, Llc | 0.00% | 5,460 | $9,555 | $4,197 | -$5,358 | -56.07% | |
| Barclays Plc | 0.00% | 3,255 | $5,696 | $2,502 | -$3,194 | -56.07% | |
| Ubs Group Ag | 0.00% | 501 | $877 | $385 | -$492 | -56.09% | |
| Fmr Llc | 0.00% | 433 | $757 | $333 | -$424 | -56.03% | |
| Osaic Holdings, Inc. | 0.00% | 380 | $665 | $292 | -$373 | -56.07% | |
| Fortitude Family Office, Llc | 0.00% | 431 | $509 | $331 | -$178 | -34.91% | |
| Wells Fargo & Company/Mn | 0.00% | 101 | $177 | $78 | -$99 | -56.14% | |
| Shp Wealth Management | 0.00% | 60 | $105 | $46 | -$59 | -56.07% | |
| Caitong International Asset Management Co., Ltd | 0.00% | 60 | $71 | $46 | -$25 | -35.04% | |
| Sbi Securities Co., Ltd. | 0.00% | 42 | $50 | $32 | -$18 | -35.43% | |
| Soa Wealth Advisors, Llc. | 0.00% | 13 | $23 | $10 | -$13 | -56.55% | |
| Morgan Stanley | 0.00% | 10 | $18 | $8 | -$10 | -57.29% |
Frequently asked questions about IBIO
Who are the largest institutional holders of IBIO?
The largest institutional holders of IBIO reported in the latest SEC Form 13F filings include Affinity Asset Advisors, Llc, Cormorant Asset Management, Lp, Silverarc Capital Management, Llc, Vestal Point Capital, Lp, and Vanguard Capital Management Llc. InsiderSet ranks institutional holders by their latest reported IBIO position.
What is IBIO institutional ownership?
This page tracks IBIO positions reported by institutional investment managers through SEC Form 13F. IBIO INC (IBIO) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own IBIO?
InsiderSet currently tracks 54 institutional managers reporting IBIO holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of IBIO shareholders.
How much IBIO stock do institutions own?
Institutional investment managers disclosed approximately $57.17M in IBIO holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was IBIO institutional ownership last updated?
The latest IBIO institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional IBIO holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its IBIO position after the reporting date.
Are institutions buying or selling IBIO?
Institutional buying and selling can be analyzed by comparing IBIO positions across consecutive 13F reporting periods. InsiderSet's IBIO Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View IBIO ownership changes.
How has IBIO institutional ownership changed over time?
InsiderSet tracks IBIO institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.