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CIK 0001759138 · Non-accelerated filer<br>Smaller reporting company

Cabaletta Bio, Inc.

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Ticker
CABA
Exchange
Nasdaq
Industry
Biological Products, (No Diagnostic Substances)
FY end
Dec 31
Incorporated
DE
Entity type
operating
Phone
(267) 759-3100
Business address
2929 ARCH STREET, SUITE 600, PHILADELPHIA, PA, 19104
Open-market buys, last 90 days
$0
in 0 filings
Open-market sales, last 90 days
$0
in 0 filings

Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Date Insider Transaction Shares Price Value Owned after
2026-06-09 Tomasello Shawn Director Grant or award · Stock Option (Right to Buy) +22,000 22,000
2026-06-09 Simon Mark Director Grant or award · Stock Option (Right to Buy) +22,000 22,000
2026-06-09 HENRIQUES RICHARD C JR Director Grant or award · Stock Option (Right to Buy) +22,000 22,000
2026-06-09 Bollard Catherine Director Grant or award · Stock Option (Right to Buy) +22,000 22,000
2026-06-09 Brun Scott C. Director Grant or award · Stock Option (Right to Buy) +22,000 22,000
2026-03-02 Das Arun Chief Business Officer Grant or award · Stock Option (Right to Buy) +175,000 175,000
2026-03-02 Gerard Michael General Counsel Grant or award · Stock Option (Right to Buy) +175,000 175,000
2026-03-02 Binder Gwendolyn President, Science & Tech. Grant or award · Stock Option (Right to Buy) +225,000 225,000
2026-03-02 Chang David J. Chief Medical Officer Grant or award · Stock Option (Right to Buy) +225,000 225,000
2026-03-02 Nichtberger Steven President & CEO Grant or award · Stock Option (Right to Buy) +674,000 674,000
2026-03-02 Marda Anup Chief Financial Officer Grant or award · Stock Option (Right to Buy) +225,000 225,000
2026-01-21 Chang David J. Chief Medical Officer Purchase +8,800 $2.26 $20K 8,800
2026-01-21 Binder Gwendolyn President, Science & Tech. Purchase +11,312 $2.19 $25K 31,312
2026-01-21 Tomasello Shawn Director Purchase +22,725 $2.21 $50K 22,725
2026-01-21 Gavel Steve Chief Commercial Officer Purchase +22,170 $2.27 $50K 22,170
2026-01-21 Bollard Catherine Director Purchase +4,405 $2.27 $10K 5,405
2026-01-21 Nichtberger Steven President & CEO Purchase +45,000 $2.24 $101K 1,031,483
2026-01-21 Simon Mark Director Purchase +11,061 $2.28 $25K 147,205
2026-01-21 Gerard Michael General Counsel Purchase +6,600 $2.27 $15K 6,600
2025-10-13 Gavel Steve CHIEF COMMERCIAL OFFICER Grant or award · Stock Option (Right to Buy) +275,000 275,000

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