IBIONasdaqPharmaceutical PreparationsFiscal year ends June 30
iBio, Inc.
Financials through Q4 FY2026, quarter ended Jun 30, 2026Last filing: 10-K on Aug 28, 2026
$0.76−0.01 (-0.81%)
Close on Oct 19, 2026
- Market cap
- $110.48M
- P/E (TTM)
- –
- Dividend yield
- –
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Held by institutions
54.0%
35M of 64M shares
Institutional holders
55
16 new, 12 sold out
Net institutional buying
15M
In Q2 2026
Insider trades, 12 months
4 buys · 0 sales
Net bought $98.11K
Shares held by institutions
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| ADAR1 Partners, LP | 789,293 | 9.27% | 13G (passive) | Mar 26, 2024 |
| Opaleye Management, Inc. | 750,000 | 7.60% | 13G (passive) amendment | Dec 31, 2024 |
| Coastlands Capital LP | 6,247,738 | 9.72% | 13G (passive) | Oct 7, 2026 |
| Cormorant Asset Management, LP | 5,117,481 | 9.99% | 13G (passive) amendment | Jun 30, 2026 |
| Affinity Asset Advisors, LLC | 5,068,882 | 9.99% | 13G (passive) amendment | Jun 30, 2026 |
| Ryan Wilder | 4,275,000 | 9.90% | 13G (passive) | Sep 30, 2025 |
| Vestal Point Capital, LP | 4,025,000 | 7.90% | 13G (passive) amendment | Jun 30, 2026 |
| Weston Nichols | 2,807,016 | 5.40% | 13G (passive) | Jun 30, 2026 |
| Michael Cho | 2,401,616 | 9.99% | 13G (passive) amendment | Jan 22, 2026 |
| Oleg Nodelman | 2,228,000 | 9.90% | 13G (passive) | Dec 10, 2025 |
| SilverArc Capital Management, LLC | 2,181,422 | 9.99% | 13G (passive) | Sep 30, 2025 |
| Phillip Gross | 2,181,422 | 9.99% | 13G (passive) | Sep 30, 2025 |
| Logos Global Master Fund LP | 2,000,000 | 8.90% | 13G (passive) | Dec 12, 2025 |
| Fhmlsp, L.P. | 1,953,467 | 5.70% | 13G (passive) amendment | Mar 31, 2026 |
| Fhmlsp, L.L.C. | 1,953,467 | 8.70% | 13G (passive) | Dec 9, 2025 |
| Point72 Capital Advisors, Inc. | 14,289,118 | 9.90% | 13G (passive) | Aug 22, 2025 |
| Israel A. Englander | 1,235,827 | 5.20% | 13G (passive) | Jan 15, 2026 |
| Alex Silverstein | 11,586,340 | 9.90% | 13G (passive) | Mar 31, 2026 |
| ADAR1 Capital Management GP, LLC | 1,095,967 | 9.99% | 13G (passive) amendment | Dec 31, 2024 |
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of IBIO | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| Affinity Asset Advisors, LLC | 4,007,881 | 6.23% | $7.01M | +900,681 | 0.32% |
| Cormorant Asset Management, LP | 3,570,000 | 5.55% | $6.25M | New | 0.32% |
| Silverarc Capital Management, LLC | 3,520,490 | 5.47% | $6.16M | +3,294,490 | 0.64% |
| Vestal Point Capital, LP | 2,600,000 | 4.04% | $4.55M | New | 0.11% |
| Vanguard Capital Management LLC | 2,098,151 | 3.26% | $3.67M | +1,009,852 | 0.00% |
| Frazier Life Sciences Management, L.P. | 1,953,467 | 3.04% | $3.42M | – | 0.07% |
| Ensign Peak Advisors, Inc | 1,832,457 | 2.85% | $3.21M | New | 0.01% |
| Woodline Partners LP | 1,776,547 | 2.76% | $3.11M | New | 0.01% |
| Millennium Management LLC | 1,651,473 | 2.57% | $2.89M | +101,623 | 0.00% |
| Citadel Advisors LLC | 1,384,029 | 2.15% | $2.42M | +427,600 | 0.00% |
| Balyasny Asset Management L.P. | 1,170,893 | 1.82% | $2.05M | +159,938 | 0.00% |
| Bank Of America Corp /De/ | 1,121,492 | 1.74% | $1.96M | +831,079 | 0.00% |
| Ikarian Capital, LLC | 957,062 | 1.49% | $1.67M | – | 0.18% |
| Sio Capital Management, LLC | 904,268 | 1.41% | $1.58M | – | 0.26% |
| Marshall Wace, Llp | 904,132 | 1.41% | $1.58M | +283,530 | 0.00% |
| Geode Capital Management, LLC | 500,816 | 0.78% | $876.65K | +113,249 | 0.00% |
| Walleye Capital LLC | 500,375 | 0.78% | $875.66K | +111,821 | 0.00% |
| Squarepoint Ops LLC | 498,872 | 0.78% | $873.03K | New | 0.00% |
| Noesis Capital Mangement Corp | 405,000 | 0.63% | $708.75K | +93,500 | 0.09% |
| Two Sigma Investments, LP | 400,667 | 0.62% | $701.17K | −8,191 | 0.00% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | % of shares | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 55 | 35M | 54.0% | 16 / 22 | 9 / 12 | 19M | 4M |
| Q1 2026 | 52 | 19M | 30.2% | 16 / 16 | 8 / 12 | 8M | 4M |
| Q4 2025 | 50 | 16M | 25.4% | 26 / 12 | 4 / 8 | 14M | 2M |
| Q3 2025 | 32 | 4M | 5.6% | 6 / 9 | 6 / 3 | 1M | 1M |
| Q2 2025 | 30 | 3M | 5.0% | 7 / 7 | 2 / 10 | 1M | 0M |
| Q1 2025 | 34 | 3M | 4.0% | 8 / 10 | 2 / 3 | 0M | 0M |
| Q4 2024 | 30 | 3M | 4.1% | 1 / 6 | 7 / 3 | 0M | 0M |
| Q3 2024 | 32 | 3M | 4.1% | 6 / 2 | 6 / 0 | 0M | 0M |
| Q2 2024 | 28 | 3M | 4.2% | 6 / 3 | 11 / 5 | 1M | 1M |
| Q1 2024 | 28 | 3M | 4.5% | 10 / 6 | 4 / 3 | 3M | 0M |
| Q4 2023 | 21 | 0M | 0.4% | 21 / 0 | 0 / 0 | 0M | 0M |
| Q3 2023 | 0 | 0M | 0.0% | 0 / 0 | 0 / 1 | 0M | 0M |
Top mutual fund and ETF holders
Latest monthly portfolio reports (Form N-PORT)
| Fund | Shares | % of IBIO | Value | % of fund | As of |
|---|---|---|---|---|---|
| Vanguard Total Stock Market Index Fund | 1,465,833 | 2.28% | $2.57M | 0.00% | Jun 30, 2026 |
| Vanguard Extended Market Index Fund | 582,071 | 0.91% | $1.02M | 0.00% | Jun 30, 2026 |
| Fidelity Extended Market Index Fund | 187,860 | 0.29% | $356.93K | 0.00% | May 31, 2026 |
| iShares Micro-Cap ETF | 103,831 | 0.16% | $181.70K | 0.01% | Jun 30, 2026 |
| Fidelity Total Market Index Fund | 63,803 | 0.10% | $121.23K | 0.00% | May 31, 2026 |
| Fidelity Series Total Market Index Fund | 51,345 | 0.08% | $97.56K | 0.00% | May 31, 2026 |
| Vanguard Institutional Total Stock Market Index Fund | 29,586 | 0.05% | $51.78K | 0.00% | Jun 30, 2026 |
| Vanguard Balanced Index Fund | 20,661 | 0.03% | $36.16K | 0.00% | Jun 30, 2026 |
| Fidelity Nasdaq Composite Index Fund | 19,435 | 0.03% | $36.93K | 0.00% | May 31, 2026 |
| 1290 VT Micro Cap Portfolio | 6,970 | 0.01% | $12.20K | 0.01% | Jun 30, 2026 |
| Total Stock Market Index Trust | 654 | 0.00% | $1.14K | 0.00% | Jun 30, 2026 |
| Blackstone Alternative Multi-Strategy Fund | 500 | 0.00% | $875 | 0.00% | Jun 30, 2026 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | % of shares | Latest filing |
|---|---|---|---|---|
| Martin Brenner | See Remarks, Director | 30,652 | 0.05% | Mar 23, 2026 |
| Molly Carr | Chief Medical Officer | – | – | Aug 4, 2026 |
| Marc Banjak | Chief Legal Officer | 25,000 | 0.04% | Mar 27, 2026 |
| Felipe Duran | Chief Financial Officer | 35,974 | 0.06% | Mar 23, 2026 |
| Elizabeth Stoner | Director | – | – | May 19, 2026 |
| Antonio Bernardino Guimaraes Parada | Director | 183,823 | 0.29% | Nov 24, 2025 |
| Evert B. Schimmelpennink | Director | – | – | Nov 24, 2025 |
| Alexandra Kropotova | Director | – | – | Nov 24, 2025 |
| William D. Clark | Director | 1,838 | 0.00% | Nov 24, 2025 |
| Gary Sender | Director | 9,191 | 0.01% | Nov 24, 2025 |
| David Arkowitz | Director | 18,382 | 0.03% | Nov 24, 2025 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| Marc Banjak Chief Legal Officer | Mar 26, 2026 | Buy | +1,434 | $1.76 | $2.52K | 25,000 |
| Marc Banjak Chief Legal Officer | Mar 26, 2026 | Buy | +12,500 | $1.64 | $20.50K | 23,566 |
| Martin Brenner See Remarks, Director | Mar 19, 2026 | Buy | +12,336 | $2.02 | $24.92K | 30,652 |
| Felipe Duran Chief Financial Officer | Mar 19, 2026 | Buy | +24,835 | $2.02 | $50.17K | 35,974 |
| David Arkowitz Director | Jan 10, 2025 | Buy | +18,382 | $2.72 | $50.00K | 18,382 |
| Martin Brenner See Remarks, Director | Jan 10, 2025 | Buy | +9,191 | $2.72 | $25.00K | 18,316 |
| Felipe Duran Chief Financial Officer | Jan 10, 2025 | Buy | +9,191 | $2.72 | $25.00K | 11,139 |
| Gary Sender Director | Jan 10, 2025 | Buy | +9,191 | $2.72 | $25.00K | 9,191 |
| Antonio Bernardino Guimaraes Parada Director | Jan 10, 2025 | Buy | +183,823 | $2.72 | $500.00K | 183,823 |
| Marc Banjak Chief Legal Officer | Jan 10, 2025 | Buy | +9,191 | $2.72 | $25.00K | 11,066 |
| William D. Clark Director | Jan 10, 2025 | Buy | +1,838 | $2.72 | $5.00K | 1,838 |
| Martin Brenner See Remarks | Nov 1, 2023 | Sale | −4,881 | $0.27 | $1.32K | 182,502 |
| Martin Brenner See Remarks | Oct 3, 2023 | Sale | −5,267 | $0.30 | $1.58K | 187,383 |
| Martin Brenner See Remarks | Oct 2, 2023 | Sale | −4,215 | $0.31 | $1.31K | 192,650 |
| Martin Brenner See Remarks | Aug 28, 2023 | Sale | −5,011 | $0.31 | $1.55K | 196,865 |
| Martin Brenner See Remarks | Jul 27, 2023 | Sale | −4,480 | $0.51 | $2.28K | 201,911 |
| Martin Brenner See Remarks | Jul 27, 2023 | Sale | −35 | $0.51 | $18 | 201,876 |
| Martin Brenner See Remarks | Jul 12, 2023 | Sale | −47,020 | $0.59 | $27.74K | 206,391 |
| Martin Brenner See Remarks | Jun 26, 2023 | Award | +75,833 | – | – | 253,411 |
| Martin Brenner See Remarks | Jun 22, 2023 | Returned to company | −75,833 | – | – | 177,578 |
| Martin Brenner See Remarks | Jun 21, 2023 | Sale | −100 | $0.68 | $68 | 253,411 |
| Martin Brenner See Remarks | Jun 21, 2023 | Sale | −225 | $0.69 | $155 | 253,511 |
| Martin Brenner See Remarks | Jun 21, 2023 | Sale | −3,859 | $0.68 | $2.62K | 253,736 |
| Martin Brenner See Remarks | May 22, 2023 | Sale | −24 | $0.95 | $23 | 257,595 |
| Martin Brenner See Remarks | May 22, 2023 | Sale | −4,158 | $0.94 | $3.91K | 257,619 |
| Martin Brenner See Remarks | Apr 24, 2023 | Sale | −4,382 | $1.20 | $5.26K | 261,777 |
| Felipe Duran Chief Financial Officer | Mar 31, 2023 | Award | +37,500 | – | – | 39,633 |
| Martin Brenner See Remarks | Mar 31, 2023 | Award | +50,000 | – | – | 266,159 |
| Martin Brenner See Remarks | Mar 23, 2023 | Sale | −5,213 | $2.13 | $11.10K | 216,159 |
| Martin Brenner See Remarks | Feb 21, 2023 | Sale | −3,976 | $1.77 | $7.04K | 221,372 |
| Martin Brenner Interim CEO and CSO | Jan 20, 2023 | Award | +130,000 | – | – | 225,348 |
| Robert Matthew Lutz See Remarks | Nov 11, 2022 | Award | +100,057 | – | – | 102,165 |
| Martin Brenner Chief Scientific Officer | Nov 11, 2022 | Award | +95,348 | – | – | 95,348 |
| Robert Matthew Lutz See Remarks | Mar 10, 2022 | Sale | −24,625 | $0.35 | $8.62K | 207,375 |
| Randy Joe Maddux Chief Operating Officer | Dec 7, 2021 | Sale | −37,243 | $0.68 | $25.33K | 271,757 |
| Robert Matthew Lutz See Remarks | Mar 4, 2021 | Award | +232,000 | – | – | 232,000 |
| Randy Joe Maddux Chief Operating Officer | Dec 1, 2020 | Award | +309,000 | – | – | 309,000 |
| Services Ltd. Portfolio 10% owner | Aug 11, 2020 | Sale | −15,864,436 | $2.92 | $46.32M | 8,629,693 |
| Services Ltd. Portfolio 10% owner | Aug 10, 2020 | Sale | −7,264,864 | $3.91 | $28.41M | 24,494,129 |
| Services Ltd. Portfolio 10% owner | Aug 7, 2020 | Sale | −1,355,604 | $3.83 | $5.19M | 31,758,993 |
| Services Ltd. Portfolio 10% owner | Aug 7, 2020 | Conversion | +28,925,000 | $0.20 | $5.79M | 33,114,597 |
| Capital LTD Eastern 10% owner | Aug 6, 2020 | Sale | −2,768,137 | $4.18 | $11.57M | 33,114,597 |
| Capital LTD Eastern 10% owner | Aug 5, 2020 | Sale | −900,000 | $4.46 | $4.01M | 35,882,734 |
| Capital LTD Eastern 10% owner | Aug 4, 2020 | Sale | −600,000 | $4.39 | $2.63M | 36,782,734 |
| Robert L. Erwin President | Jun 4, 2020 | Sale | −28,268 | $1.71 | $48.34K | 108,108 |
| Robert L. Erwin President | Jun 4, 2020 | Option exercise | +28,268 | $0.93 | $26.29K | 108,108 |
| Robert L. Erwin President | Jun 2, 2020 | Option exercise | +96,124 | $0.93 | $89.40K | 136,376 |
| Robert L. Erwin President | Jun 2, 2020 | Sale | −96,124 | $1.62 | $155.72K | 136,376 |
| James P. Mullaney Chief Financial Officer | May 27, 2020 | Sale | −11,250 | $1.61 | $18.11K | 0 |
| James P. Mullaney Chief Financial Officer | May 27, 2020 | Option exercise | +11,250 | $0.93 | $10.46K | 0 |
| Thomas Francis 3rd Isett CEO and Executive Co-Chairman, Director | Mar 19, 2020 | Conversion | +100,000 | $0.20 | $20.00K | 1,275,000 |
| Thomas Francis 3rd Isett CEO and Executive Co-Chairman, Director | Mar 17, 2020 | Option exercise | +78,024 | $0.22 | $17.17K | 1,275,000 |
| Thomas Francis 3rd Isett CEO and Executive Chairman, Director | Feb 20, 2020 | Other | +121,976 | – | – | 1,275,000 |
| Kenneth Bryan Dart 10% owner | Mar 14, 2019 | Other | +1 | – | – | 1 |
| Kenneth Bryan Dart 10% owner | Mar 14, 2019 | Other | +1 | – | – | 1 |
| Kenneth Bryan Dart 10% owner | Jan 1, 2019 | Other | −1 | – | – | 1 |
| Services Ltd. Portfolio 10% owner | Jul 12, 2018 | Buy | +2,200,000 | $0.90 | $1.98M | 8,457,734 |
| Capital LTD Eastern 10% owner | Jun 26, 2018 | Buy | +1,683,334 | $0.90 | $1.52M | 6,257,734 |
| Services Ltd. Portfolio 10% owner | Nov 30, 2017 | Buy | +12,000,000 | $0.20 | $2.40M | 45,744,000 |
| Kenneth Bryan Dart 10% owner | Feb 23, 2017 | Buy | +1 | – | – | 1 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.