CABA

Cabaletta Bio, Inc.

Insider trading activity for Cabaletta Bio, Inc., straight from SEC Form 4 filings. Net figures below count open-market buys and sales only — grants, option exercises and tax withholding are excluded because they are compensation, not decisions to trade.

Past 3 months

net buying

Bought(0 · 0 insiders): $0
Sold(0 · 0 insiders): $0

Past 6 months

net buying

Bought(0 · 0 insiders): $0
Sold(0 · 0 insiders): $0

Past 12 months

+$296.2K

net buying

Bought(8 · 8 insiders): $296.2K
Sold(0 · 0 insiders): $0

Transaction history

The 100 most recent Form 4 transactions.

Open in screener →

Insider transactions, newest first: date, security, transaction type, size and a link to the filing each row came from.
Date	Insider	Role	Type	Shares	Price	Value	Δ Own	Filing
Jun 9	Tomasello Shawn	Director	AGRANT◆	22,000	—	—	—	Open the original filing on SEC.gov
Jun 9	Simon Mark	Director	AGRANT◆	22,000	—	—	—	Open the original filing on SEC.gov
Jun 9	Henriques Richard C Jr	Director	AGRANT◆	22,000	—	—	—	Open the original filing on SEC.gov
Jun 9	Brun Scott C.	Director	AGRANT◆	22,000	—	—	—	Open the original filing on SEC.gov
Jun 9	Bollard Catherine	Director	AGRANT◆	22,000	—	—	—	Open the original filing on SEC.gov
Mar 2	Das Arun	Chief Business Officer	AGRANT◆	175,000	—	—	—	Open the original filing on SEC.gov
Mar 2	Gerard Michael	General Counsel	AGRANT◆	175,000	—	—	—	Open the original filing on SEC.gov
Mar 2	Chang David J.	Chief Medical Officer	AGRANT◆	225,000	—	—	—	Open the original filing on SEC.gov
Mar 2	Nichtberger Steven	President & CEO	AGRANT◆	674,000	—	—	—	Open the original filing on SEC.gov
Mar 2	Marda Anup	Chief Financial Officer	AGRANT◆	225,000	—	—	—	Open the original filing on SEC.gov
Mar 2	Binder Gwendolyn	President, Science &…	AGRANT◆	225,000	—	—	—	Open the original filing on SEC.gov
Jan 21	Chang David J.	Chief Medical Officer	PBUY★	8,800	$2.26	$19.9K	—	Open the original filing on SEC.gov
Jan 21	Tomasello Shawn	Director	PBUY★	22,725	$2.21	$50.3K	—	Open the original filing on SEC.gov
Jan 21	Gavel Steve	Chief Commercial Officer	PBUY★	22,170	$2.27	$50.2K	—	Open the original filing on SEC.gov
Jan 21	Nichtberger Steven	President & CEO	PBUY★	45,000	$2.24	$100.8K	+4.6%	Open the original filing on SEC.gov
Jan 21	Simon Mark	Director	PBUY★	11,061	$2.28	$25.3K	+8.1%	Open the original filing on SEC.gov
Jan 21	Gerard Michael	General Counsel	PBUY★	6,600	$2.27	$15K	—	Open the original filing on SEC.gov
Jan 21	Bollard Catherine	Director	PBUY★	4,405	$2.27	$10K	+440.5%	Open the original filing on SEC.gov
Jan 21	Binder Gwendolyn	President, Science &…	PBUY★	11,312	$2.19	$24.8K	+56.6%	Open the original filing on SEC.gov
Oct 13, 2025	Gavel Steve	Chief Commercial Officer	AGRANT◆	275,000	—	—	—	Open the original filing on SEC.gov
Jun 9, 2025	Simon Mark	Director	AGRANT◆	22,000	—	—	—	Open the original filing on SEC.gov
Jun 9, 2025	Tomasello Shawn	Director	AGRANT◆	22,000	—	—	—	Open the original filing on SEC.gov
Jun 9, 2025	Henriques Richard C Jr	Director	AGRANT◆	22,000	—	—	—	Open the original filing on SEC.gov
Jun 9, 2025	Brun Scott C.	Director	AGRANT◆	22,000	—	—	—	Open the original filing on SEC.gov
Jun 9, 2025	Bollard Catherine	Director	AGRANT◆	22,000	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Nichtberger Steven	President & CEO	AGRANT◆	353,000	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Nichtberger Steven	President & CEO	DTOISS◆	353,000	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Nichtberger Steven	President & CEO	AGRANT◆	411,600	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Nichtberger Steven	President & CEO	DTOISS◆	411,600	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Nichtberger Steven	President & CEO	AGRANT◆	380,000	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Nichtberger Steven	President & CEO	DTOISS◆	380,000	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Nichtberger Steven	President & CEO	AGRANT◆	333,500	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Nichtberger Steven	President & CEO	DTOISS◆	333,500	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Nichtberger Steven	President & CEO	AGRANT◆	300,000	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Nichtberger Steven	President & CEO	DTOISS◆	300,000	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Nichtberger Steven	President & CEO	AGRANT◆	99,714	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Nichtberger Steven	President & CEO	DTOISS◆	99,714	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Gerard Michael	General Counsel	AGRANT◆	100,000	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Gerard Michael	General Counsel	DTOISS◆	100,000	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Gerard Michael	General Counsel	AGRANT◆	112,500	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Gerard Michael	General Counsel	DTOISS◆	112,500	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Gerard Michael	General Counsel	AGRANT◆	75,000	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Gerard Michael	General Counsel	DTOISS◆	75,000	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Gerard Michael	General Counsel	AGRANT◆	100,000	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Gerard Michael	General Counsel	DTOISS◆	100,000	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Henriques Richard C Jr	Director	AGRANT◆	22,000	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Henriques Richard C Jr	Director	DTOISS◆	22,000	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Henriques Richard C Jr	Director	AGRANT◆	22,000	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Henriques Richard C Jr	Director	DTOISS◆	22,000	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Henriques Richard C Jr	Director	AGRANT◆	22,000	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Henriques Richard C Jr	Director	DTOISS◆	22,000	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Henriques Richard C Jr	Director	AGRANT◆	46,428	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Henriques Richard C Jr	Director	DTOISS◆	46,428	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Tomasello Shawn	Director	AGRANT◆	22,000	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Tomasello Shawn	Director	DTOISS◆	22,000	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Tomasello Shawn	Director	AGRANT◆	44,000	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Tomasello Shawn	Director	DTOISS◆	44,000	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Marda Anup	Chief Financial Officer	AGRANT◆	130,000	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Marda Anup	Chief Financial Officer	DTOISS◆	130,000	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Marda Anup	Chief Financial Officer	AGRANT◆	150,000	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Marda Anup	Chief Financial Officer	DTOISS◆	150,000	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Marda Anup	Chief Financial Officer	AGRANT◆	135,000	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Marda Anup	Chief Financial Officer	DTOISS◆	135,000	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Marda Anup	Chief Financial Officer	AGRANT◆	100,000	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Marda Anup	Chief Financial Officer	DTOISS◆	100,000	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Marda Anup	Chief Financial Officer	AGRANT◆	24,711	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Marda Anup	Chief Financial Officer	DTOISS◆	24,711	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Marda Anup	Chief Financial Officer	AGRANT◆	66,463	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Marda Anup	Chief Financial Officer	DTOISS◆	66,463	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Marda Anup	Chief Financial Officer	AGRANT◆	139,282	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Marda Anup	Chief Financial Officer	DTOISS◆	139,282	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Simon Mark	Director	AGRANT◆	22,000	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Simon Mark	Director	DTOISS◆	22,000	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Simon Mark	Director	AGRANT◆	22,000	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Simon Mark	Director	DTOISS◆	22,000	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Simon Mark	Director	AGRANT◆	22,000	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Simon Mark	Director	DTOISS◆	22,000	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Simon Mark	Director	AGRANT◆	18,460	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Simon Mark	Director	DTOISS◆	18,460	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Das Arun	Chief Business Officer	AGRANT◆	100,000	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Das Arun	Chief Business Officer	DTOISS◆	100,000	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Das Arun	Chief Business Officer	AGRANT◆	150,000	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Das Arun	Chief Business Officer	DTOISS◆	150,000	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Das Arun	Chief Business Officer	AGRANT◆	100,000	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Das Arun	Chief Business Officer	DTOISS◆	100,000	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Das Arun	Chief Business Officer	AGRANT◆	35,000	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Das Arun	Chief Business Officer	DTOISS◆	35,000	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Das Arun	Chief Business Officer	AGRANT◆	18,416	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Das Arun	Chief Business Officer	DTOISS◆	18,416	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Chang David J.	Chief Medical Officer	AGRANT◆	130,000	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Chang David J.	Chief Medical Officer	DTOISS◆	130,000	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Chang David J.	Chief Medical Officer	AGRANT◆	150,000	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Chang David J.	Chief Medical Officer	DTOISS◆	150,000	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Chang David J.	Chief Medical Officer	AGRANT◆	135,000	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Chang David J.	Chief Medical Officer	DTOISS◆	135,000	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Chang David J.	Chief Medical Officer	AGRANT◆	113,500	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Chang David J.	Chief Medical Officer	DTOISS◆	113,500	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Chang David J.	Chief Medical Officer	AGRANT◆	38,238	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Chang David J.	Chief Medical Officer	DTOISS◆	38,238	—	—	—	Open the original filing on SEC.gov
May 19, 2025	Chang David J.	Chief Medical Officer	AGRANT◆	48,836	—	—	—	Open the original filing on SEC.gov

AGRANT◆—

Tomasello Shawn · DirectorJun 9

22,000 sh

AGRANT◆—

Simon Mark · DirectorJun 9

22,000 sh

AGRANT◆—

Henriques Richard C Jr · DirectorJun 9

22,000 sh

AGRANT◆—

Brun Scott C. · DirectorJun 9

22,000 sh

AGRANT◆—

Bollard Catherine · DirectorJun 9

22,000 sh

AGRANT◆—

Das Arun · Chief Business…Mar 2

175,000 sh

AGRANT◆—

Gerard Michael · General CounselMar 2

175,000 sh

AGRANT◆—

Chang David J. · Chief Medical…Mar 2

225,000 sh

AGRANT◆—

Nichtberger Steven · President & CEOMar 2

674,000 sh

AGRANT◆—

Marda Anup · Chief Financial…Mar 2

225,000 sh

AGRANT◆—

Binder Gwendolyn · President, Science…Mar 2

225,000 sh

PBUY★$19.9K

Chang David J. · Chief Medical…Jan 21

8,800 sh @ $2.26

PBUY★$50.3K

Tomasello Shawn · DirectorJan 21

22,725 sh @ $2.21

PBUY★$50.2K

Gavel Steve · Chief Commercial…Jan 21

22,170 sh @ $2.27

PBUY★$100.8K

Nichtberger Steven · President & CEOJan 21

45,000 sh @ $2.24 · +4.6% own

PBUY★$25.3K

Simon Mark · DirectorJan 21

11,061 sh @ $2.28 · +8.1% own

PBUY★$15K

Gerard Michael · General CounselJan 21

6,600 sh @ $2.27

PBUY★$10K

Bollard Catherine · DirectorJan 21

4,405 sh @ $2.27 · +440.5% own

PBUY★$24.8K

Binder Gwendolyn · President, Science…Jan 21

11,312 sh @ $2.19 · +56.6% own

AGRANT◆—

Gavel Steve · Chief Commercial…Oct 13, 2025

275,000 sh

AGRANT◆—

Simon Mark · DirectorJun 9, 2025

22,000 sh

AGRANT◆—

Tomasello Shawn · DirectorJun 9, 2025

22,000 sh

AGRANT◆—

Henriques Richard C Jr · DirectorJun 9, 2025

22,000 sh

AGRANT◆—

Brun Scott C. · DirectorJun 9, 2025

22,000 sh

AGRANT◆—

Bollard Catherine · DirectorJun 9, 2025

22,000 sh

AGRANT◆—

Nichtberger Steven · President & CEOMay 19, 2025

353,000 sh

DTOISS◆—

Nichtberger Steven · President & CEOMay 19, 2025

353,000 sh

AGRANT◆—

Nichtberger Steven · President & CEOMay 19, 2025

411,600 sh

DTOISS◆—

Nichtberger Steven · President & CEOMay 19, 2025

411,600 sh

AGRANT◆—

Nichtberger Steven · President & CEOMay 19, 2025

380,000 sh

DTOISS◆—

Nichtberger Steven · President & CEOMay 19, 2025

380,000 sh

AGRANT◆—

Nichtberger Steven · President & CEOMay 19, 2025

333,500 sh

DTOISS◆—

Nichtberger Steven · President & CEOMay 19, 2025

333,500 sh

AGRANT◆—

Nichtberger Steven · President & CEOMay 19, 2025

300,000 sh

DTOISS◆—

Nichtberger Steven · President & CEOMay 19, 2025

300,000 sh

AGRANT◆—

Nichtberger Steven · President & CEOMay 19, 2025

99,714 sh

DTOISS◆—

Nichtberger Steven · President & CEOMay 19, 2025

99,714 sh

AGRANT◆—

Gerard Michael · General CounselMay 19, 2025

100,000 sh

DTOISS◆—

Gerard Michael · General CounselMay 19, 2025

100,000 sh

AGRANT◆—

Gerard Michael · General CounselMay 19, 2025

112,500 sh

DTOISS◆—

Gerard Michael · General CounselMay 19, 2025

112,500 sh

AGRANT◆—

Gerard Michael · General CounselMay 19, 2025

75,000 sh

DTOISS◆—

Gerard Michael · General CounselMay 19, 2025

75,000 sh

AGRANT◆—

Gerard Michael · General CounselMay 19, 2025

100,000 sh

DTOISS◆—

Gerard Michael · General CounselMay 19, 2025

100,000 sh

AGRANT◆—

Henriques Richard C Jr · DirectorMay 19, 2025

22,000 sh

DTOISS◆—

Henriques Richard C Jr · DirectorMay 19, 2025

22,000 sh

AGRANT◆—

Henriques Richard C Jr · DirectorMay 19, 2025

22,000 sh

DTOISS◆—

Henriques Richard C Jr · DirectorMay 19, 2025

22,000 sh

AGRANT◆—

Henriques Richard C Jr · DirectorMay 19, 2025

22,000 sh

DTOISS◆—

Henriques Richard C Jr · DirectorMay 19, 2025

22,000 sh

AGRANT◆—

Henriques Richard C Jr · DirectorMay 19, 2025

46,428 sh

DTOISS◆—

Henriques Richard C Jr · DirectorMay 19, 2025

46,428 sh

AGRANT◆—

Tomasello Shawn · DirectorMay 19, 2025

22,000 sh

DTOISS◆—

Tomasello Shawn · DirectorMay 19, 2025

22,000 sh

AGRANT◆—

Tomasello Shawn · DirectorMay 19, 2025

44,000 sh

DTOISS◆—

Tomasello Shawn · DirectorMay 19, 2025

44,000 sh

AGRANT◆—