Summary
Latest filing:
BAIN CAPITAL INVESTORS LLC files SEC Form 4 reports at Kailera Therapeutics, Inc. (KLRA). 6 SEC Form 4 filings on record going back to 2024, most recently on 20 April 2026. Most recent open-market trade: bought $134.38M of KLRA on 20 April 2026. Lifetime open-market purchases: $134.38M. Lifetime open-market sales: $1.42B.
Recent transactions
13The latest 13 SEC Form 4 transactions reported by BAIN CAPITAL INVESTORS LLC.
Trading pattern
InsiderAlpha's records for BAIN CAPITAL INVESTORS LLC go back to 2024: 6 primary Form 4 filings, an average of 2.0 per year. The typical open-market purchase is $134.38M (1 buy totaling $134.38M). The largest single buy on record is $134.38M of KLRA in 2026. Sales side: 5 recorded sales totaling $1.42B, so the filing history runs sell-heavy by dollar value. No recorded transaction carries a Rule 10b5-1 plan flag. An absent flag does not establish whether a transaction was pre-arranged or discretionary.
Other insiders active in the same stocks
Insiders who reported open-market trades in the last 12 months at the companies BAIN CAPITAL 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.
- Andrew T. Kaplan - $134.38M in KLRA purchases and sales in the last 12 months
- Jennifer Lynn Davis - $46.50M in BOBS purchases and sales in the last 12 months
- John Thomas Kilgallon - $46.50M in BOBS purchases and sales in the last 12 months
- Bain Capital Life Sciences Investors, LLC - $25.00M in KLRA purchases and sales in the last 12 months
- Adam Koppel - $25.00M in KLRA purchases and sales in the last 12 months
- Giovanni Barbarossa - $18.08M in COHR purchases and sales in the last 12 months
More insiders (A-Z)
Browse nearby insider profiles in alphabetical order.
Frequently asked questions
What is BAIN CAPITAL INVESTORS LLC?
BAIN CAPITAL INVESTORS LLC is an investment firm of Kailera Therapeutics, Inc. (KLRA). 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 INVESTORS LLC last file a Form 4?
The most recent primary Form 4 on record is dated 20 April 2026, one of 6 filings going back to 2024.
Has BAIN CAPITAL INVESTORS LLC been buying or selling stock?
Recorded transactions: 1 open-market purchase ($134.38M) and 5 open-market sales ($1.42B) across all tracked filings.