ImmunityBio, Inc. (IBRX) Ownership
IBRX ownership summary
as of October 18, 2026- Institutions
- 19.8% of shares outstanding
- Insiders
- 62.16% of shares outstanding
- Shares outstanding
- 1.06B
- Float
- 406.7M shares available to trade
- Short interest
- 30.95% 124.1M shares short
- Days to cover
- 11.29 short interest down 1.0% vs prior month
- Institutions 19.79%
- Insiders 62.16%
- Other investors 18.05%
IBRX top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | BlackRock Inc | 3.22% | 34.1M | $312.9M | +7.7M (+29.4%) | June 30, 2026 |
| 2 | State Street Corp | 2.02% | 21.4M | $196.4M | +3.7M (+20.8%) | June 30, 2026 |
| 3 | Vanguard Portfolio Management, LLC | 1.69% | 17.9M | $164.0M | +1.5M (+9.4%) | June 30, 2026 |
| 4 | Vanguard Capital Management, LLC | 1.48% | 15.7M | $144.0M | +563,865 (+3.7%) | June 30, 2026 |
| 5 | D. E. Shaw & Co LP | 1.09% | 11.6M | $106.0M | −1.0M (−8.1%) | June 30, 2026 |
| 6 | Two Sigma Investments LLC | 1.05% | 11.1M | $101.9M | +6.7M (+153.0%) | June 30, 2026 |
| 7 | Geode Capital Management, LLC | 0.93% | 9.8M | $90.4M | +1.8M (+22.6%) | June 30, 2026 |
| 8 | Millennium Management LLC | 0.53% | 5.6M | $51.2M | +4.2M (+292.9%) | June 30, 2026 |
| 9 | Northern Trust Corp | 0.34% | 3.6M | $32.7M | +1.1M (+42.3%) | June 30, 2026 |
| 10 | Morgan Stanley - Brokerage Accounts | 0.32% | 3.4M | $31.5M | −586,191 (−14.6%) | June 30, 2026 |
| 11 | The Goldman Sachs Group Inc | 0.31% | 3.2M | $29.7M | −2,801 (−0.1%) | June 30, 2026 |
| 12 | UBS Group AG | 0.30% | 3.2M | $29.3M | +250,840 (+8.5%) | June 30, 2026 |
| 13 | Charles Schwab Investment Management Inc | 0.27% | 2.9M | $26.5M | +410,666 (+16.6%) | June 30, 2026 |
| 14 | Woodline Partners LP | 0.24% | 2.5M | $23.0M | −947,157 (−27.5%) | June 30, 2026 |
| 15 | SEB Asset Management AB | 0.23% | 2.4M | $22.5M | — | June 30, 2026 |
| 16 | Vanguard Fiduciary Trust Co | 0.23% | 2.4M | $22.1M | +289,210 (+13.6%) | June 30, 2026 |
| 17 | Bank of America Corp | 0.21% | 2.2M | $20.1M | −263,354 (−10.8%) | June 30, 2026 |
| 18 | VOLORIDGE INVESTMENT MANAGEMENT, LLC | 0.16% | 1.7M | $15.8M | −1.2M (−41.2%) | June 30, 2026 |
| 19 | Federated Hermes Inc | 0.16% | 1.7M | $15.7M | +326,609 (+23.6%) | June 30, 2026 |
| 20 | Royal Bank of Canada | 0.15% | 1.5M | $14.2M | +56,668 (+3.8%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 13 holders added 28.6M shares and 6 cut 4.0M.
IBRX top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | State Street® SPDR® S&P® Biotech ETF | 1.11% | 11.8M | $108.1M | −224,200 (−1.9%) | September 30, 2026 |
| 2 | Vanguard MStar Total Stk Mkt Idx Invest | 1.10% | 11.6M | $106.7M | −15,162 (−0.1%) | August 31, 2026 |
| 3 | iShares Russell 2000 ETF | 0.94% | 10.0M | $91.7M | −115,136 (−1.1%) | September 30, 2026 |
| 4 | Vanguard Small Cap Index | 0.80% | 8.4M | $77.4M | −621 (−0.0%) | August 31, 2026 |
| 5 | Vanguard MStar Small Cap Growth Indx Inv | 0.46% | 4.8M | $44.3M | −36,045 (−0.7%) | August 31, 2026 |
| 6 | Fidelity Small Cap Index | 0.40% | 4.2M | $38.8M | +34,978 (+0.8%) | July 31, 2026 |
| 7 | iShares Russell 2000 Growth ETF | 0.34% | 3.6M | $33.2M | −4,577 (−0.1%) | September 30, 2026 |
| 8 | iShares Biotechnology ETF | 0.29% | 3.1M | $28.2M | −23,240 (−0.8%) | September 30, 2026 |
| 9 | SEB Läkemedelsfond A (SEK) | 0.23% | 2.4M | $22.5M | — | August 31, 2026 |
| 10 | Vanguard Russell 2000 ETF | 0.21% | 2.2M | $20.4M | +52,523 (+2.4%) | August 31, 2026 |
| 11 | Schwab US Small-Cap ETF™ | 0.20% | 2.1M | $19.5M | +1,431 (+0.1%) | September 30, 2026 |
| 12 | Principal US Small Cap ETF | 0.16% | 1.7M | $15.5M | +837 (+0.0%) | September 30, 2026 |
| 13 | Fidelity Extended Market Index | 0.15% | 1.6M | $14.5M | −15,679 (−1.0%) | August 31, 2026 |
| 14 | Schwab US Mid-Cap ETF™ | 0.11% | 1.2M | $11.1M | +1,287 (+0.1%) | September 30, 2026 |
| 15 | Vanguard Health Care ETF | 0.11% | 1.1M | $10.3M | +27,669 (+2.5%) | August 31, 2026 |
| 16 | iShares Genomics Immnlgy & Hlthcr ETF | 0.09% | 1.0M | $9.2M | +27,700 (+2.8%) | September 30, 2026 |
| 17 | Trenchless Fund ETF | 0.09% | 999K | $9.2M | — | September 30, 2026 |
| 18 | Schwab Small Cap Index | 0.09% | 942K | $8.7M | +5,111 (+0.5%) | August 31, 2026 |
| 19 | iShares Nasdaq US Biotech ETF USD Acc | 0.08% | 866K | $8.0M | +7,200 (+0.8%) | September 30, 2026 |
| 20 | JPM Thmtcs Gentc Thrps C2 dist USD | 0.07% | 792K | $7.3M | +8,884 (+1.1%) | August 31, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
IBRX insider transactions
latest 7| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2026-02-24 | Barry J Simon | Sell | $12.01 | 75,000 | $900,750 |
| 2026-02-23 | Barry J Simon | Sell | $10.25 | 165,000 | $1.7M |
| 2026-02-23 | Christobel Selecky | Sell | $10.00 | 25,000 | $250,000 |
| 2026-02-20 | Barry J Simon | Sell | $9.25 | 10,000 | $92,500 |
| 2026-01-20 | Barry J Simon | Sell | $7.20 | 151,967 | $1.1M |
| 2026-01-20 | Christobel Selecky | Sell | $7.51 | 25,000 | $187,750 |
| 2026-01-16 | Christobel Selecky | Sell | $5.00 | 50,000 | $250,000 |
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.
IBRX shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns IBRX
Institutional investors own 19.8% of ImmunityBio's shares and insiders 62.16%. The largest holder is BlackRock Inc with 3.22% of the shares (34.1M), as of June 30, 2026. Among the top 20 institutions, 13 added shares and 6 reduced their stake in the latest filings. Short interest is 30.95% of the float, or 11.29 days of average trading volume. The share count rose 12,271.0% since 2014.
Related: IBRX analyst forecast, IBRX key metrics. See the IBRX stock overview for the latest quote and news.
IBRX ownership FAQ
Who owns the most ImmunityBio stock?
The largest shareholders of ImmunityBio are BlackRock Inc (3.22%), State Street Corp (2.02%), Vanguard Portfolio Management, LLC (1.69%), Vanguard Capital Management, LLC (1.48%), D. E. Shaw & Co LP (1.09%).
What percentage of ImmunityBio is owned by institutions?
Institutions hold 19.8% of ImmunityBio's shares outstanding; insiders hold 62.16%.
Which funds own ImmunityBio?
The largest fund holders of ImmunityBio are State Street® SPDR® S&P® Biotech ETF (1.11%), Vanguard MStar Total Stk Mkt Idx Invest (1.10%), iShares Russell 2000 ETF (0.94%), Vanguard Small Cap Index (0.80%), Vanguard MStar Small Cap Growth Indx Inv (0.46%).
What is ImmunityBio's short interest?
124.1M shares of ImmunityBio were sold short, 30.95% of the float; at the average daily volume it would take 11.29 days to cover.
Are insiders buying or selling ImmunityBio?
Of the latest 7 reported insider transactions in ImmunityBio (since January 16, 2026), 0 were purchases and 7 were sales.
How many shares of ImmunityBio are outstanding?
ImmunityBio has 1.06B shares outstanding, of which 406.7M are in the public float.