RA Capital Healthcare Fund LP insider trades: Bambusa Therapeutics (BBTX) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where RA Capital Healthcare Fund LP reports to the SEC
and 65 more companies
Open-market buys and sales
238 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Nov 2, 2026 | BBTX | ↑ Buy | 2,953,820 | $15.79 | $46.6M | Indirect | Nov 3, 2026 (1d) |
| Oct 29, 2026 | LENZ | ↓ Sell | 2,718,684 | $3.36 | $9.1M | Indirect | Nov 2, 2026 (4d) |
| Sep 17, 2026 | SION | ↓ Sell | 3,448,811 | $6.33 | $21.8M | Indirect | Sep 21, 2026 (4d) |
| Aug 12, 2026 | SEPN | ↓ Sell | 1,493,000 | $42.50 | $63.5M | Indirect | Aug 14, 2026 (2d) |
| Jul 31, 2026 | ARTV | ↑ Buy | 45,768 | $9.96 | $456K | Indirect | Jul 31, 2026 (0d) |
| Jul 24, 2026 | ARTV | ↑ Buy | 41,319 | $9.99 | $413K | Indirect | Jul 28, 2026 (4d) |
| Jul 23, 2026 | ARTV | ↑ Buy | 264,586 | $9.76 | $2.6M | Indirect | Jul 23, 2026 (0d) |
| Jul 22, 2026 | PBLS | ↑ Buy | 244,593 | $28.29 | $6.9M | Indirect | Jul 22, 2026 (0d) |
| Jul 17, 2026 | ARTV | ↑ Buy | 160,354 | $8.93 | $1.4M | Indirect | Jul 20, 2026 (3d) |
| Jul 16, 2026 | VOR | ↓ Sell | 213 | $19.75 | $4K | Indirect | Jul 21, 2026 (5d) |
| Jul 13, 2026 | ARTV | ↑ Buy | 6,522 | $8.94 | $58K | Indirect | Jul 23, 2026 (10d) |
| Jul 13, 2026 | ARTV | ↑ Buy | 21,654 | $8.96 | $194K | Indirect | Jul 14, 2026 (1d) |
| Jun 26, 2026 | ARTV | ↑ Buy | 32,876 | $8.89 | $292K | Indirect | Jun 29, 2026 (3d) |
| Jun 17, 2026 | HOWL | ↓ Sell | 416,911 | $0.35 | $146K | Indirect | Jun 22, 2026 (5d) |
| Jun 16, 2026 | COAG | ↑ Buy | 67,669 | $24.97 | $1.7M | Indirect | Jun 17, 2026 (1d) |
| Jun 16, 2026 | ARTV | ↑ Buy | 531,326 | $8.66 | $4.6M | Indirect | Jun 16, 2026 (0d) |
| Jun 16, 2026 | HOWL | ↓ Sell | 448,836 | $0.39 | $174K | Indirect | Jun 16, 2026 (0d) |
| Jun 11, 2026 | PBLS | ↑ Buy | 21,188,750 | $20.00 | $423.8M | Indirect | Jun 15, 2026 (4d) |
| Jun 11, 2026 | ARTV | ↑ Buy | 1,027,722 | $7.44 | $7.7M | Indirect | Jun 11, 2026 (0d) |
| Jun 11, 2026 | HOWL | ↓ Sell | 678,226 | $0.37 | $254K | Indirect | Jun 11, 2026 (0d) |
| May 20, 2026 | COAG | ↑ Buy | 4,798 | $24.96 | $120K | Indirect | May 21, 2026 (1d) |
| May 12, 2026 | COAG | ↑ Buy | 6,387 | $24.90 | $159K | Indirect | May 14, 2026 (2d) |
| May 12, 2026 | HOWL | ↓ Sell | 565,167 | $0.69 | $391K | Indirect | May 12, 2026 (0d) |
| May 11, 2026 | ARTV | ↑ Buy | 6,510,416 | $11.52 | $75.0M | Indirect | May 13, 2026 (2d) |
| May 11, 2026 | COAG | ↑ Buy | 51,258 | $24.75 | $1.3M | Indirect | May 11, 2026 (0d) |
| May 6, 2026 | COAG | ↑ Buy | 2,840,429 | $18.39 | $52.2M | Indirect | May 6, 2026 (0d) |
| Apr 20, 2026 | VOR | ↓ Sell | 630,374 | $16.14 | $10.2M | Indirect | Apr 21, 2026 (1d) |
| Apr 10, 2026 | VOR | ↓ Sell | 620,133 | $16.50 | $10.2M | Indirect | Apr 10, 2026 (0d) |
| Apr 6, 2026 | VOR | ↓ Sell | 849,257 | $17.10 | $14.5M | Indirect | Apr 6, 2026 (0d) |
| Mar 30, 2026 | MLYS | ↑ Buy | 369,000 | $23.75 | $8.8M | Indirect | Mar 31, 2026 (1d) |
| Feb 26, 2026 | BCAX | ↑ Buy | 300,000 | $16.00 | $4.8M | Indirect | Mar 2, 2026 (4d) |
| Feb 20, 2026 | ACET | ↑ Buy | 223,596 | $7.17 | $1.6M | Indirect | Apr 13, 2026 (52d) |
| Jan 5, 2026 | CLYM | ↑ Buy | 7,111 | $3.50 | $25K | Indirect | Jan 7, 2026 (2d) |
| Dec 12, 2025 | CLYM | ↑ Buy | 314,561 | $2.40 | $755K | Indirect | Dec 15, 2025 (3d) |
| Dec 8, 2025 | FULC | ↓ Sell | 4,175,139 | $13.98 | $58.4M | Indirect | Dec 10, 2025 (2d) |
| Nov 21, 2025 | SION | ↓ Sell | 30,316 | $39.61 | $1.2M | Indirect | Nov 24, 2025 (3d) |
| Nov 19, 2025 | SION | ↓ Sell | 136,351 | $40.34 | $5.5M | Indirect | Nov 19, 2025 (0d) |
| Nov 13, 2025 | WVE | ↑ Buy | 1,000 | $6.69 | $7K | Indirect | Nov 14, 2025 (1d) |
| Oct 30, 2025 | VOR | ↓ Sell | 400,408 | $25.90 | $10.4M | Indirect | Oct 30, 2025 (0d) |
| Oct 28, 2025 | SION | ↓ Sell | 373,610 | $39.51 | $14.8M | Indirect | Oct 28, 2025 (0d) |
| Oct 27, 2025 | VOR | ↓ Sell | 221,166 | $28.06 | $6.2M | Indirect | Oct 27, 2025 (0d) |
| Oct 21, 2025 | VOR | ↓ Sell | 117,050 | $29.34 | $3.4M | Indirect | Oct 22, 2025 (1d) |
| Oct 17, 2025 | VOR | ↓ Sell | 464,025 | $29.54 | $13.7M | Indirect | Oct 17, 2025 (0d) |
| Sep 26, 2025 | PEPG | ↑ Buy | 9,375,000 | $3.20 | $30.0M | Indirect | Sep 30, 2025 (4d) |
| Sep 4, 2025 | MLYS | ↑ Buy | 1,176,470 | $25.50 | $30.0M | Indirect | Sep 8, 2025 (4d) |
| Jun 26, 2025 | CDTX | ↑ Buy | 2,272,727 | $44.00 | $100.0M | Indirect | Jun 30, 2025 (4d) |
| Jun 16, 2025 | TYRA | ↑ Buy | 163,287 | $10.19 | $1.7M | Indirect | Jun 16, 2025 (0d) |
| Jun 9, 2025 | TYRA | ↑ Buy | 186,850 | $10.19 | $1.9M | Indirect | Jun 11, 2025 (2d) |
| Jun 5, 2025 | TYRA | ↑ Buy | 1,211,198 | $9.70 | $11.8M | Indirect | Jun 6, 2025 (1d) |
| May 14, 2025 | HOWL | ↑ Buy | 536,426 | $0.91 | $487K | Indirect | May 14, 2025 (0d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other BBTX insiders
Open-market trades in the last 12 months
About RA Capital Healthcare Fund LP's insider trades
RA Capital Healthcare Fund LP is a director at Bambusa Therapeutics (BBTX). Since Dec 21, 2006, it has reported 181 open-market purchases worth $2.87B and 57 sales worth $35.28B on SEC Form 4. In the last 12 months: 24 buys ($641.4M) and 14 sales ($195.4M).
Its filings also include grants and awards (116 filings), other transactions (41 filings), conversions (37 filings), shares returned to the company (7 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every BBTX insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.