Cabaletta Bio, Inc. (CABA) Insider Trading & SEC Filings

Updated Jul 16, 2026 · Last SEC filing 2026-06-10

Cabaletta Bio, Inc. (CABA) has filed 5 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-06-10. 7 Form 8-K material event filings were reported by CABA in the last 90 days. InsiderAlpha tracks every CABA SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.

About Cabaletta Bio, Inc. (CABA)

SIC classification	Biological Products, (No Diagnostic Substances) (SIC 2836)
SEC CIK	0001759138

90-Day SEC Filing Activity

Form 4 filings (90d)	5
Form 8-K filings (90d)	7
Latest Form 4 filing	2026-06-10

Recent CABA Insider Transactions (Form 4)

Date	Insider	Role	Transaction	Shares	Price	Value	Filing
2026-01-21	Chang David J.	Chief Medical Officer	P — Open-market purchase	8.8K	$2.26	$20K	SEC
2026-01-21	Binder Gwendolyn	President, Science & Tech.	P — Open-market purchase	11.3K	$2.19	$25K	SEC
2026-01-21	Tomasello Shawn	Insider	P — Open-market purchase	22.7K	$2.21	$50K	SEC
2026-01-21	Gavel Steve	Chief Commercial Officer	P — Open-market purchase	22.2K	$2.27	$50K	SEC
2026-01-21	Bollard Catherine	Insider	P — Open-market purchase	4.4K	$2.27	$10K	SEC
2026-01-21	Nichtberger Steven	President & CEO	P — Open-market purchase	45.0K	$2.24	$101K	SEC
2026-01-21	Simon Mark	Insider	P — Open-market purchase	11.1K	$2.28	$25K	SEC
2026-01-21	Gerard Michael	General Counsel	P — Open-market purchase	6.6K	$2.27	$15K	SEC

All transactions sourced from SEC EDGAR Form 4 filings for Cabaletta Bio, Inc. (CABA). Updated in real time as new filings are submitted to the SEC.

Most-Active CABA Insiders — Last 90 Days

Insider	Form 4 filings	Total transaction value
Brun Scott C.	1	—
HENRIQUES RICHARD C JR	1	—
Tomasello Shawn	1	—
Bollard Catherine	1	—
Simon Mark	1	—

Recent CABA Form 8-K Material Events

2026-06-11 — Item 5.03, 5.07, 9.01 [SEC]
2026-06-03 — Item 7.01, 8.01, 9.01 [SEC]
2026-05-14 — Item 2.02, 9.01 [SEC]
2026-05-14 — Item 7.01, 8.01, 9.01 [SEC]
2026-05-04 — Item 1.01, 2.02, 8.01, 9.01 [SEC]

Recent Insider Filings

2026-06-10 — Tomasello Shawn (Insider)
2026-06-10 — Simon Mark (Insider)
2026-06-10 — HENRIQUES RICHARD C JR (Insider)
2026-06-10 — Bollard Catherine (Insider)
2026-06-10 — Brun Scott C. (Insider)

Form 4 Transaction Code Reference

SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in CABA insider filings:

P	Open-market purchase by the insider
S	Open-market sale by the insider
A	Grant, award, or other acquisition from the issuer
M	Exercise or conversion of derivative security (e.g. options)
F	Payment of exercise price or tax liability via share withholding
G	Bona-fide gift of securities
D	Disposition to the issuer (e.g. share buyback participation)
J	Other acquisition or disposition
X	Exercise of in-the-money or at-the-money derivative security
C	Conversion of derivative security
V	Transaction voluntarily reported earlier than required

CABA Insider Trading — FAQ

What is the latest insider trade for CABA?: Cabaletta Bio, Inc. (CABA) had 5 insider filings in the last 90 days, with the most recent on 2026-06-10. InsiderAlpha tracks every Form 4, 10-K, 10-Q, and 8-K filing in real time.
How many insiders are buying CABA stock?: 0 insider purchases of CABA were filed in the last 90 days.
How many insiders are selling CABA stock?: 0 insider sales of CABA were filed in the last 90 days.
Where can I see CABA SEC filings (Form 4, 10-K, 10-Q, 8-K)?: InsiderAlpha aggregates every CABA SEC filing — Form 4 insider transactions, 10-K and 10-Q quarterly reports, and 8-K material event disclosures — in one timeline.

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