Gerard Michael 4

What Happened
Gerard Michael, General Counsel of Cabaletta Bio, purchased 6,600 shares of CABA stock in an open-market/ private purchase transaction on January 21, 2026. The reported weighted-average price was $2.27 per share for a total reported value of $14,979. This was a purchase (insider buy), which some investors view as a modest positive signal about the insider's view.

Key Details

• Transaction date: 2026-01-21 (reported on Form 4 filed 2026-01-21) — filing appears timely.
• Transaction type/code: Purchase (P) — open market or private purchase.
• Shares purchased: 6,600 shares.
• Price: weighted-average $2.27 per share; footnote F1 states purchases ranged from $2.269 to $2.2699 and full breakdown can be provided on request.
• Total reported value: $14,979.
• Shares owned after transaction: Not specified in the information provided in this summary.
• No 10b5-1 plan, tax withholding, option exercise, or gift noted in the provided filing details.

Context
This was a straightforward open-market purchase rather than an option exercise or award. The dollar amount is relatively small (~$15K), so while purchases can be informative, the size here is modest. No evidence in the filing suggests late reporting or other special conditions.