Bambusa Therapeutics, Inc.
BBTX- Exchange
- Nasdaq
- Industry
- Biological Products, (No Diagnostic Substances)
- SEC CIK
- 0002044950
In the last 90 days, Bambusa Therapeutics, Inc. insiders filed 2 open-market purchases and 0 sales; no institution reported holding it in 13F filings for Q2 2026; no superinvestor holds it.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by Bambusa Therapeutics, Inc. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 2 filings
- 2 insiders, $52.6M in total
- Open-market sells
- 0 filings
- Insiders trading
- 2
- Net value
- +$52.6M
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for Bambusa Therapeutics, Inc., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| RA Capital Healthcare Fund LP | Director, 10% Owner | 1,495,971Indirect | Nov 3, 2026 | 1 |
| Ra Capital Management, L.P. | Director, 10% Owner | 1,495,971Indirect | Nov 3, 2026 | 1 |
| Kolchinsky Peter | Director, 10% Owner | 1,495,971Indirect | Nov 3, 2026 | 1 |
| Shah Rajeev M. | Director, 10% Owner | 1,495,971Indirect | Nov 3, 2026 | 1 |
| RA Capital Nexus Fund III, L.P. | Director | 1,495,971Indirect | Nov 3, 2026 | 1 |
| Salvia Investment GmbH | 10% Owner | 9,264,301 | Nov 2, 2026 | 1 |
| Jeggle Helmut Wolfgang | Director, 10% Owner | 9,264,301Indirect | Nov 2, 2026 | 1 |
| Xu Shanshan | See remarks | 7,562,518Indirect | Nov 2, 2026 | 2 |
| MiNeng, Inc. | 10% Owner | 7,562,518Indirect | Nov 2, 2026 | 1 |
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Nov 3, 2026 (view filing)6:09 PM ET | Oct 30-Nov 2 | 4 days | RA Capital Healthcare Fund LP and 4 othersDirector, 10% Owner | PPurchase | +2.95M | $15.79 | +$46.6M | New position1.50M after | 4 lots |
| Nov 2, 2026 (view filing)4:07 PM ET | Nov 2 | Same day | Salvia Investment GmbH10% Owner | PPurchase | +375.0K | $16.00 | +$6.00M | +4.2%9.26M after | Duplicate filing |
| Nov 2, 2026 (view filing)4:06 PM ET | Nov 2 | Same day | Jeggle Helmut WolfgangDirector, 10% Owner | PPurchase | +375.0K | $16.00 | +$6.00M | +4.2%9.26M after |