Immunitybio
IBRX · NASDAQ
Who owns IBRX
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 74.2% of IBRX’s shares.
- Cambridge Equities, L.P.59.7%
- Soon-Shiong (Patrick)2.8%
- BlackRock Institutional Trust Company, N.A.2.8%
- State Street Investment Management (US)2.0%
- Next 6 largest institutions6.8%
- All other shareholders25.8%
| Holder | Shares | % of shares |
|---|---|---|
| Cambridge Equities, L.P. | 624.85M | 59.66% |
| Soon-Shiong (Patrick) | 29.76M | 2.84% |
| BlackRock Institutional Trust Company, N.A. | 28.99M | 2.77% |
| State Street Investment Management (US) | 21.40M | 2.04% |
| Vanguard Portfolio Management, LLC | 17.86M | 1.71% |
| Vanguard Capital Management, LLC | 15.69M | 1.50% |
| D. E. Shaw & Co., L.P. | 11.55M | 1.10% |
| Two Sigma Investments, LP | 11.10M | 1.06% |
| Geode Capital Management, L.L.C. | 9.85M | 0.94% |
| Millennium Management LLC | 5.58M | 0.53% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| State Street SPDR S&P Biotech ETF | 13.15M | 1.26% |
| Vanguard Total Stock Market Index Fund | 11.64M | 1.11% |
| iShares Russell 2000 ETF | 9.91M | 0.95% |
| Vanguard Small-Cap Index Fund | 8.43M | 0.80% |
| Vanguard Small-Cap Growth Index Fund | 4.86M | 0.46% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders sold $5.04M (8 trades) of IBRX on the open market, with no buys.
| Insider | Type | Shares | Value |
|---|---|---|---|
| Simon Barry J. | Sale | 25.00K | $268.76K |
| Cohen Cheryl | Option exercise | 55.98K | — |
| Cohen Cheryl | Sale | 81.06K | $851.09K |
| Cohen Cheryl | Option exercise | 55.98K | $166.82K |
| Cohen Cheryl | Option exercise | 55.98K | — |
| Cohen Cheryl | Sale | 131.21K | $1.25M |
| Cohen Cheryl | Option exercise | 55.98K | $166.82K |
| Selecky Christobel | Option exercise | 124.41K | — |
| Selecky Christobel | Option exercise | 35.06K | — |
| Selecky Christobel | Sale | 159.48K | $1.44M |
Congressional trades
Disclosed by members of Congress over the last 12 months
| Member | Type | Amount | Traded |
|---|---|---|---|
| Lisa McClainHouse | Purchase | $1K–$15K | Sep 30, 2026 |
| Lisa McClainHouse | Purchase | $1K–$15K | Sep 28, 2026 |
Short interest
Settled Sep 30, 2026
- Shares short
- 124.09M
- Days to cover
- 8.88
- % of shares outstanding
- 11.85%
- Average daily volume
- 13.97M
- Change since last report
- −1.0%
Information on this page is provided for informational purposes only and is not a recommendation to buy, sell or hold any security. Investing involves risk, including possible loss of principal. Market data is delayed at least 15 minutes and is provided without warranty. Analyst ratings, price targets and company data come from third-party sources. Past performance does not guarantee future results.