Ra Capital Healthcare Fund LP Insider Trades
EntityDirector at Bambusa Therapeutics, Inc. and 5 other companies. 10 significant open-market trades reported on SEC Form 4 in the last 180 days.
On EDGAR, this filer has 393 Form 4 filings on record since 2006, the latest on Nov 3, 2026. Full history on sec.gov
$58.6M
Bought
$94.4M
Sold
7 / 3
Buys / Sells
6
Companies
Companies
- BBTXDirector
Bambusa Therapeutics, Inc.
1 buy, $46.6M · 1 alert in our log
- LENZ10% owner
Lenz Therapeutics, Inc.
1 sell, $9.1M
- SIONDirector
Sionna Therapeutics, Inc.
1 sell, $21.8M
- SEPNDirector
Septerna, Inc.
1 sell, $63.5M
- ARTVDirector
Artiva Biotherapeutics, Inc.
5 buys, $5.1M
- PBLSDirector
Parabilis Medicines, Inc.
1 buy, $6.9M
Reported Trades
Open-market transactions only (code P and S), outside any 10b5-1 plan, dated by the day the filing reached EDGAR. Each row links to the filing.
| Filed | Company | Trade | Value |
|---|---|---|---|
| Nov 3, 2026 | BBTXDirector | buy | $46.6M |
| Nov 2, 2026 | LENZ10% owner | sell97.9% of stake | $9.1M |
| Sep 21, 2026 | SIONDirector | sell50% of stake | $21.8M |
| Aug 14, 2026 | SEPNDirector | sell67.3% of stake | $63.5M |
| Jul 31, 2026 | ARTVDirector | buy | $456K |
| Jul 28, 2026 | ARTVDirector | buy | $413K |
| Jul 23, 2026 | ARTVDirector | buy | $2.6M |
| Jul 22, 2026 | PBLSDirector | buy | $6.9M |
| Jul 20, 2026 | ARTVDirector | buy | $1.4M |
| Jul 14, 2026 | ARTVDirector | buy | $194K |
Other Insiders at These Companies
Everyone else who reported a significant open-market trade at the same companies in the last 180 days. Several insiders buying at once is cluster buying.
- Ra Capital Management, L.P.Director at BBTX1 buy, $46.6M
- Ra Capital Nexus Fund Iii, L.P.Director at BBTX1 buy, $46.6M
- Peter KolchinskyDirector at BBTX1 buy, $46.6M
- Rajeev M. ShahDirector at BBTX1 buy, $46.6M
- Salvia Investment GmbH10% owner at BBTX1 buy, $6.0M
- Helmut Wolfgang JeggleDirector at BBTX1 buy, $6.0M
- Ra Capital Nexus Fund, L.P.Director at SION1 sell, $21.8M
How to Read This Page
These are the trades an insider chose to make with their own money, not grants, option exercises or tax withholding. A purchase is the stronger signal (why buys carry more information than sales), and an insider who buys is locked out of selling for six months by the short-swing rule. The window here is 180 days; the full filing history lives on EDGAR.
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