Mark Simon - 09 Jun 2025 Form 4 Insider Report for Cabaletta Bio, Inc. (CABA)

Role
Director
Signature
/s/ Michael Gerard, Attorney-in-Fact
Issuer symbol
CABA
Transactions as of
09 Jun 2025
Net transactions value
$0
Form type
4
Filing time
09 Jun 2025, 20:28:01 UTC
Previous filing
19 May 2025
Next filing
21 Jan 2026

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Simon Mark Director C/O CABALETTA BIO, INC., 2929 ARCH STREET, SUITE 600, PHILADELPHIA /s/ Michael Gerard, Attorney-in-Fact 09 Jun 2025 0001400717

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction CABA Stock Option (Right to Buy) Award $0 +22,000 $0.000000 22,000 09 Jun 2025 Common Stock 22,000 $2.37 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 This option shall vest in full upon the earlier of (i) June 9, 2026 or (ii) the date of the next annual meeting of the Corporation's stockholders.