Form 4 Tracker
Bain Capital Life Sciences Investors, LLC

10% Owner · 3 filings · Latest: May 20, 2026

Heartflow, Inc.
Kailera Therapeutics, Inc.
RAPID MICRO BIOSYSTEMS, INC.
TickerOwnerRelationshipDateTransactionCost#SharesValue ($)#Shares TotalSEC Form 4
HTFL
Bain Capital Life Sciences Investors, LLC10% OwnerApr 30, 2026
Sale
$29.23948,757$27.7M8,448,158
HTFL
Bain Capital Life Sciences Investors, LLC10% OwnerApr 29, 2026
Sale
$29.37797,133$23.4M9,396,915
HTFL
Bain Capital Life Sciences Investors, LLC10% OwnerApr 28, 2026
Sale
$30.51254,110$7.8M10,194,048
KLRA
Bain Capital Life Sciences Investors, LLC10% OwnerApr 20, 2026
Purchase
$16.001,562,500$25.0M22,583,268
KLRA
Bain Capital Life Sciences Investors, LLC10% OwnerApr 20, 2026
Conversion
21,020,76821,020,768