Bambusa Therapeutics, Inc. (BBTX) shareholders
BBTXNasdaqBiological Products, (No Diagnostic Substances)Fiscal year ends December 31
$16.00+0.00 (0.00%)
Close on Nov 3, 2026Market cap –P/E –Yield –
Ownership
Who owns Bambusa Therapeutics's shares
Held by institutions
–
Shares held, 13F filers
Institutional holders
–
Net institutional buying
–
Insider trades, 12 months
6 buys · 0 sales
Net bought $58.64M
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | Latest filing |
|---|---|---|---|
| Shanshan Xu | See remarks, Director, 10% owner | 7,562,518 | Nov 2, 2026 |
| Jonathan I. Lieber | Chief Financial Officer | – | Oct 29, 2026 |
| Minh Quoc Thang Ho | See remarks | – | Oct 29, 2026 |
| Rajeev M. Shah | Director, 10% owner | – | Nov 3, 2026 |
| Capital Healthcare Fund LP RA | Director, 10% owner | – | Nov 3, 2026 |
| Ra Capital Management, L.P. | Director, 10% owner | 1,495,971 | Nov 3, 2026 |
| RA Capital Nexus Fund III, L.P. | Director | – | Nov 3, 2026 |
| Peter Kolchinsky | Director, 10% owner | – | Nov 3, 2026 |
| Helmut Wolfgang Jeggle | Director, 10% owner | 9,264,301 | Nov 2, 2026 |
| Derek DiRocco | Director | – | Oct 29, 2026 |
| Howard Liang | Director | – | Oct 29, 2026 |
| Christian Uwe Foerster | Director | – | Oct 29, 2026 |
| MiNeng, Inc. | 10% owner | – | Nov 2, 2026 |
| Investment GmbH Salvia | 10% owner | 9,264,301 | Nov 2, 2026 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| Ra Capital Management, L.P. Director, 10% owner | Nov 2, 2026 | Buy | +164,891 | $16.00 | $2.64M | 1,495,971 |
| Ra Capital Management, L.P. Director, 10% owner | Nov 2, 2026 | Buy | +2,335,109 | $16.00 | $37.36M | 5,933,787 |
| Ra Capital Management, L.P. Director, 10% owner | Nov 2, 2026 | Conversion | +1,331,080 | – | – | 1,331,080 |
| Ra Capital Management, L.P. Director, 10% owner | Nov 2, 2026 | Conversion | +3,144,858 | – | – | 3,598,678 |
| Investment GmbH Salvia 10% owner | Nov 2, 2026 | Buy | +375,000 | $16.00 | $6.00M | 9,264,301 |
| Investment GmbH Salvia 10% owner | Nov 2, 2026 | Conversion | +4,769,701 | – | – | 8,889,301 |
| Shanshan Xu See remarks, Director, 10% owner | Nov 2, 2026 | Conversion | +147,238 | – | – | 7,562,518 |
| Shanshan Xu See remarks, Director, 10% owner | Nov 2, 2026 | Conversion | +16,358 | – | – | 840,277 |
| Helmut Wolfgang Jeggle Director, 10% owner | Nov 2, 2026 | Buy | +375,000 | $16.00 | $6.00M | 9,264,301 |
| Helmut Wolfgang Jeggle Director, 10% owner | Nov 2, 2026 | Conversion | +4,769,701 | – | – | 8,889,301 |
| Ra Capital Management, L.P. Director, 10% owner | Oct 30, 2026 | Buy | +263,911 | $14.92 | $3.94M | 453,820 |
| Ra Capital Management, L.P. Director, 10% owner | Oct 30, 2026 | Buy | +189,909 | $14.23 | $2.70M | 189,909 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.
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