IN8bio, Inc. (INAB) Ownership
INAB ownership summary
as of October 18, 2026- Institutions
- 38.4% of shares outstanding
- Insiders
- 7.58% of shares outstanding
- Shares outstanding
- 9.9M
- Float
- 7.2M shares available to trade
- Short interest
- 0.53% 46K shares short
- Days to cover
- 1.12 short interest down 26.4% vs prior month
- Institutions 38.45%
- Insiders 7.58%
- Other investors 53.98%
INAB top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Alyeska Investment Group, L.P. | 9.58% | 944K | $1.0M | — | June 30, 2026 |
| 2 | Franklin Templeton Inc | 9.28% | 915K | $1.0M | — | June 30, 2026 |
| 3 | 683 Capital Management LLC | 7.35% | 725K | $804,347 | — | March 31, 2026 |
| 4 | Stonepine Capital Management Llc | 7.05% | 695K | $771,769 | +31,875 (+4.8%) | June 30, 2026 |
| 5 | Vanguard Capital Management, LLC | 0.90% | 89K | $98,640 | — | June 30, 2026 |
| 6 | BIOS CAPITAL MANAGEMENT, LP | 0.82% | 81K | $89,862 | −86,848 (−51.8%) | June 30, 2026 |
| 7 | Geode Capital Management, LLC | 0.74% | 73K | $80,530 | −13,689 (−15.9%) | June 30, 2026 |
| 8 | Citadel Advisors Llc | 0.64% | 63K | $69,991 | +63,055 (0.0%) | June 30, 2026 |
| 9 | Oppenheimer & Co Inc | 0.64% | 63K | $69,977 | +39,009 (+162.3%) | June 30, 2026 |
| 10 | Vanguard Fiduciary Trust Co | 0.44% | 44K | $48,363 | — | June 30, 2026 |
| 11 | CapTrust Financial Advisors | 0.34% | 33K | $36,957 | — | June 30, 2026 |
| 12 | Texas Capital Bank Wealth Management Services Inc | 0.25% | 24K | $27,091 | +656 (+2.8%) | June 30, 2026 |
| 13 | Northern Trust Corp | 0.22% | 22K | $24,125 | +1,294 (+6.3%) | June 30, 2026 |
| 14 | Renaissance Technologies Corp | 0.12% | 12K | $13,431 | +12,100 (0.0%) | June 30, 2026 |
| 15 | Tower Research Capital LLC | 0.04% | 3,738 | $4,149 | +2,473 (+195.5%) | June 30, 2026 |
| 16 | Northwestern Mutual Wealth Management Co | 0.03% | 2,785 | $3,091 | — | June 30, 2026 |
| 17 | JONES FINANCIAL COMPANIES LLLP | 0.01% | 768 | $852 | — | June 30, 2026 |
| 18 | BlackRock Inc | <0.01% | 84 | $93 | — | June 30, 2026 |
| 19 | Rockefeller Capital Management L.P. | <0.01% | 83 | $92 | — | June 30, 2026 |
| 20 | Barclays PLC | <0.01% | 28 | $31 | +28 (0.0%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 8 holders added 150K shares and 2 cut 101K.
INAB top mutual fund and ETF holders
5 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Franklin Biotechnology Discv A(acc)USD | 5.91% | 582K | $646,494 | — | September 30, 2026 |
| 2 | Franklin Biotechnology Discovery A | 3.37% | 332K | $368,612 | — | August 31, 2026 |
| 3 | Fidelity Extended Market Index | 0.47% | 46K | $51,232 | −248 (−0.5%) | August 31, 2026 |
| 4 | Fidelity Series Total Market Index | 0.12% | 12K | $13,572 | — | August 31, 2026 |
| 5 | Fidelity Total Market Index | 0.02% | 2,040 | $2,264 | — | August 31, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
INAB insider transactions
latest 3| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2023-09-13 | Jeremy R Graff | Buy | $28.50 | 83 | $2,366 |
| 2023-08-25 | Patrick Mccall | Buy | $30.90 | 33 | $1,020 |
| 2023-08-24 | William Tai-Wei Ho | Buy | $31.50 | 793 | $24,980 |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
INAB shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns INAB
Institutional investors own 38.4% of IN8bio's shares and insiders 7.58%. The largest holder is Alyeska Investment Group, L.P. with 9.58% of the shares (944K), as of June 30, 2026. Among the top 20 institutions, 8 added shares and 2 reduced their stake in the latest filings. Short interest is 0.53% of the float, or 1.12 days of average trading volume. The share count rose 58.2% since 2017.
Related: INAB analyst forecast, INAB key metrics. See the INAB stock overview for the latest quote and news.
INAB ownership FAQ
Who owns the most IN8bio stock?
The largest shareholders of IN8bio are Alyeska Investment Group, L.P. (9.58%), Franklin Templeton Inc (9.28%), 683 Capital Management LLC (7.35%), Stonepine Capital Management Llc (7.05%), Vanguard Capital Management, LLC (0.90%).
What percentage of IN8bio is owned by institutions?
Institutions hold 38.4% of IN8bio's shares outstanding; insiders hold 7.58%.
Which funds own IN8bio?
The largest fund holders of IN8bio are Franklin Biotechnology Discv A(acc)USD (5.91%), Franklin Biotechnology Discovery A (3.37%), Fidelity Extended Market Index (0.47%), Fidelity Series Total Market Index (0.12%), Fidelity Total Market Index (0.02%).
What is IN8bio's short interest?
46K shares of IN8bio were sold short, 0.53% of the float; at the average daily volume it would take 1.12 days to cover.
Are insiders buying or selling IN8bio?
Of the latest 3 reported insider transactions in IN8bio (since August 24, 2023), 3 were purchases and 0 were sales.
How many shares of IN8bio are outstanding?
IN8bio has 9.9M shares outstanding, of which 7.2M are in the public float.