Cabaletta Bio, Inc. — Director's Dealing 2019

Oct 25, 2019

SEC Form 3 — Initial Statement of Beneficial Ownership

Issuer: Cabaletta Bio, Inc. (CABA)
CIK: 0001759138
Period of Report: 2019-10-24

Reporting Person: Redmile Group, LLC (10% Owner)
Reporting Person: Green Jeremy (10% Owner)

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Series B Convertible Preferred Stock	$		Common Stock (696378)		Indirect

Footnotes

F1: The Series B Convertible Preferred Stock is convertible into shares of the Issuer's common stock at any time, at the holder's election, on a 1-for-0.66667 basis and has no expiration date.

F2: These securities are directly owned by certain private investment vehicles managed by Redmile Group, LLC ("Redmile") and may be deemed beneficially owned by Redmile as investment manager of such private investment vehicles. The reported securities may also be deemed beneficially owned by Jeremy Green as the principal of Redmile. The Reporting Persons disclaim beneficial ownership of the reported securities except to the extent of their pecuniary interest therein, and this report shall not be deemed an admission that such Reporting Persons are the beneficial owners of the securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.