Cabaletta Bio, Inc.·4

Mar 2, 7:28 PM ET

Das Arun 4

4 · Cabaletta Bio, Inc. · Filed Mar 2, 2026

Research Summary

AI-generated summary of this filing

Updated

Cabaletta Bio CBO Das Arun Receives 175,000-Share Award

What Happened
Das Arun, Chief Business Officer of Cabaletta Bio (CABA), was granted a derivative award covering 175,000 shares on 2026-03-02. The filing reports an acquisition at $0.00 (reported value $0), indicating an equity award/option-style grant rather than an open-market purchase or sale. The award does not result in immediate common‑share ownership until vesting/exercise.

Key Details

  • Transaction date: 2026-03-02 (filing dated 2026-03-02) — appears timely.
  • Grant: 175,000 derivative shares; reported price $0.00; total reported consideration $0.
  • Shares owned after transaction: Not specified in the provided filing.
  • Vesting (footnote): 25% vests on March 1, 2027; remaining 75% vests in 12 substantially equal quarterly installments thereafter, subject to continued service.
  • Transaction code: A = grant/award/other acquisition (derivative).

Context
This is a common form of executive equity compensation (stock options or RSUs-like derivative award). Because it’s a derivative grant with multi-year vesting, it does not represent an immediate change in voting or selling power and should not be interpreted as a market buy/sell signal by itself.

Insider Transaction Report

Form 4
Period: 2026-03-02
Das Arun
Chief Business Officer
Transactions
  • Award

    Stock Option (Right to Buy)

    [F1]
    2026-03-02+175,000175,000 total
    Exercise: $3.30Exp: 2036-03-01Common Stock (175,000 underlying)
Footnotes (1)
  • [F1]25% of the shares underlying this option shall vest and become exercisable on March 1, 2027, with the remainder vesting in twelve substantially equal quarterly installments thereafter, subject to the reporting person's continued service on each such vesting date.
Signature
By: /s/ Michael Gerard, as Attorney-in-Fact|2026-03-02

Documents

1 file
  • 4
    ownership.xmlPrimary

    4