Cabaletta Bio stock jumps 11% premarket after insider buying cluster hits the tape
New York, January 22, 2026, 08:14 (ET) — Premarket Cabaletta Bio shares climbed roughly 11% in premarket trading Thursday, following a nearly 7% gain the previous day, fueled by a series of insider-buying reports. The stock was last indicated at $2.60, up from Wednesday’s close of $2.34. (Investing.com) This surge in buying is significant because Cabaletta is a small, cash-burning biotech where sentiment shifts quickly on minor signals. When several insiders purchase shares openly on the same day, some investors see it as a sign of conviction—or at least a statement on the company’s valuation. Cabaletta is working on rese-cel,