Summary
Updated Aug 31, 2026
Bain Capital Life Sciences Investors, LLC files SEC Form 4 reports at RAPID MICRO BIOSYSTEMS, INC. (RPID). 6 SEC Form 4 filings on record going back to 2024, most recently on 22 May 2026. Most recent open-market trade: sold $1.69M of HTFL on 1 May 2026. Lifetime open-market purchases: $65.00M. Lifetime open-market sales: $115.00M.
Recent Transactions
10Every recent SEC Form 4 transaction Bain Capital Life Sciences Investors, LLC has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Bain Capital Life Sciences Investors, LLC go back to 2024: 6 primary Form 4 filings, an average of 2.0 per year. The typical open-market purchase is $13.00M (5 buys totaling $65.00M). The largest single buy on record is $40.00M of NAMS in 2024. Sales side: 5 recorded sales totaling $115.00M, so the filing history runs sell-heavy by dollar value. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Bain Capital Life Sciences Investors, LLC files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- BAIN CAPITAL INVESTORS LLC - $134.38M of KLRA open-market activity in the last 12 months
- Andrew T. Kaplan - $134.38M of KLRA open-market activity in the last 12 months
- Adam Koppel - $25.00M of KLRA open-market activity in the last 12 months
- John C.M. Farquhar - $9.12M of HTFL open-market activity in the last 12 months
- RTW INVESTMENTS, LP - $8.00M of KLRA open-market activity in the last 12 months
- Campbell Rogers - $5.72M of HTFL open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
What is Bain Capital Life Sciences Investors, LLC?
Bain Capital Life Sciences Investors, LLC is an investment firm of RAPID MICRO BIOSYSTEMS, INC. (RPID). InsiderAlpha holds 6 primary Form 4 filings for it, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Bain Capital Life Sciences Investors, LLC last file a Form 4?
The most recent primary Form 4 on record is dated 22 May 2026, one of 6 filings going back to 2024.
Has Bain Capital Life Sciences Investors, LLC been buying or selling stock?
Recorded transactions: 5 open-market purchases ($65.00M) and 5 open-market sales ($115.00M) across all tracked filings.
Where can I see all of Bain Capital Life Sciences Investors, LLC's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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