Impact BiomedicalIBO
13F holders, Q4 2025 (December 31)24holders +3
4new positions
1sold out
1famous investor
$0.50avg. 13F price*
At the end of Q4 2025, 24 institutions reported holding Impact Biomedical Inc. (IBO) in their 13F filings, up 3 from Q3 2025. 4 opened new positions and 1 sold out. The largest holders were Vanguard Group Inc. ($412K), BlackRock, Inc. ($131K) and Millennium Management ($70K). One famous investor held it Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Impact Biomedical Inc.
- CUSIP
- 45259L205
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 4 | $88K |
| Exits | 1 | $24 |
All 13F filers, Q3 2025 → Q4 2025: 933,246 shares bought and 31,602 shares sold, net +901,644 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 24 holders
| Vanguard Group Inc. | 0.00% | Add +691.9% | 814,885 | $412K |
| BlackRock, Inc. | 0.00% | Add +2.9% | 259,946 | $131K |
| Millennium Management | 0.00% | New | 137,823 | $70K |
| Geode Capital Management, LLC | 0.00% | Add +64.9% | 74,378 | $38K |
| Two Sigma Investments, LP | 0.00% | Add +26.4% | 39,827 | $20K |
| Two Sigma Securities, LLC | 0.00% | Reduce -20.2% | 22,695 | $11K |
| Susquehanna International Group, LLP | 0.00% | Reduce -21.3% | 16,501 | $8K |
| Jane Street Group, LLC | 0.00% | New | 14,086 | $7K |
| HRT Financial LP | 0.00% | New | 13,533 | $6K |
| State Street Corp. | 0.00% | No change | 11,797 | $6K |
| Northern Trust Corp. | 0.00% | New | 10,225 | $5K |
| Mason & Associates Inc | 0.00% | No change | 10,000 | $5K |
| Morgan Stanley | 0.00% | No change | 9,266 | $5K |
| UBS Group AG | 0.00% | Reduce -89.2% | 2,169 | $1K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -1.1% | 1,426 | $720 |
| Bank of America Corp. | 0.00% | Add +450.0% | 924 | $467 |
| Wells Fargo & Company | 0.00% | Reduce -11.5% | 224 | $113 |
| NFSG Corp | 0.00% | No change | 86 | $43 |
| Danske Bank A/S | 0.00% | No change | 3 | $2 |
| Signature Resources Capital Management, LLC | 0.00% | No change | 4 | $2 |
| Citigroup Inc. | 0.00% | Reduce -100.0% | 1 | $1 |
| Group One Trading LLC | 0.00% | No change | 1 | $1 |
| Royal Bank of Canada | 0.00% | Add +3100.0% | 32 | $0 |
| Cwm, LLC | 0.00% | No change | 28 | $0 |
"% of holder's portfolio" is IBO's weight in each manager's 13F, not the share of Impact Biomedical Inc. the manager owns.