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Who

Mark Simon

Director

Company insider

Files Form 4 as: Director, Cabaletta Bio.

In numbers

Trades disclosed
21
Buys
2
Sells
0
Bought
$173K
Sold
$0
Companies
1
Companies where not an officer
1
First trade
29 Oct 2019
Last trade
9 Jun 2026
Last filed
10 Jun 2026

Companies traded

Everywhere else they filed: board seats, 10% stakes, other companies
CABA Cabaletta BioDirector · Biotechnology · last 9 Jun 20262 buys · 0 sells

Activity over time

1 Nov 2024 – 1 Oct 2026
01Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
9 Jun 2026filed 10 Jun 2026CABA Cabaletta Biooption or derivative · BiotechnologySEC FORM 4 Code A—22,000 at $0.00filing
9 Jun 2026filed 10 Jun 2026CABA Cabaletta Biooption or derivative · BiotechnologySEC FORM 4 Code A—22,000 at $0.00filing
21 Jan 2026filed 21 Jan 2026CABA Cabaletta BioBiotechnologySEC FORM 4 Bought$25K11,061 at $2.28filing
21 Jan 2026filed 21 Jan 2026CABA Cabaletta BioBiotechnologySEC FORM 4 Bought$25K11,061 at $2.28filing
9 Jun 2025filed 9 Jun 2025CABA Cabaletta Biooption or derivative · BiotechnologySEC FORM 4 Code A—22,000 at $0.00filing
19 May 2025filed 19 May 2025CABA Cabaletta Biooption or derivative · BiotechnologySEC FORM 4 Code D—18,460 at $0.00filing
19 May 2025filed 19 May 2025CABA Cabaletta Biooption or derivative · BiotechnologySEC FORM 4 Code A—18,460 at $0.00filing
19 May 2025filed 19 May 2025CABA Cabaletta Biooption or derivative · BiotechnologySEC FORM 4 Code D—22,000 at $0.00filing
19 May 2025filed 19 May 2025CABA Cabaletta Biooption or derivative · BiotechnologySEC FORM 4 Code A—22,000 at $0.00filing
19 May 2025filed 19 May 2025CABA Cabaletta Biooption or derivative · BiotechnologySEC FORM 4 Code D—22,000 at $0.00filing
19 May 2025filed 19 May 2025CABA Cabaletta Biooption or derivative · BiotechnologySEC FORM 4 Code A—22,000 at $0.00filing
19 May 2025filed 19 May 2025CABA Cabaletta Biooption or derivative · BiotechnologySEC FORM 4 Code D—22,000 at $0.00filing
19 May 2025filed 19 May 2025CABA Cabaletta Biooption or derivative · BiotechnologySEC FORM 4 Code A—22,000 at $0.00filing
3 Jun 2024filed 4 Jun 2024CABA Cabaletta Biooption or derivative · BiotechnologySEC FORM 4 Code A—22,000 at $0.00filing
1 Jun 2023filed 2 Jun 2023CABA Cabaletta Biooption or derivative · BiotechnologySEC FORM 4 Code A—22,000 at $0.00filing
18 Oct 2022filed 18 Oct 2022CABA Cabaletta BioBiotechnologySEC FORM 4 Bought$116K118,000 at $0.98filing
18 Oct 2022filed 18 Oct 2022CABA Cabaletta BioBiotechnologySEC FORM 4 Bought$6,8607,000 at $0.98filing
1 Jun 2022filed 3 Jun 2022CABA Cabaletta Biooption or derivative · BiotechnologySEC FORM 4 Code A—22,000 at $0.00filing
1 Jun 2021filed 3 Jun 2021CABA Cabaletta Biooption or derivative · BiotechnologySEC FORM 4 Code A—22,000 at $0.00filing
29 Oct 2019filed 30 Oct 2019CABA Cabaletta Biooption or derivative · BiotechnologySEC FORM 4 Code C—27,217filing

News

No headline names them, or the companies they trade most, lately.

Sectors

Health Care2

Buys in green, sells in red, by the company’s sector.

Related people

Shawn TomaselloDirector · Director at Cabaletta Bio, filing Form 4 there in the last year
Scott C. BrunDirector · Director at Cabaletta Bio, filing Form 4 there in the last year
Catherine BollardDirector · Director at Cabaletta Bio, filing Form 4 there in the last year
Richard C. Henriques Jr.Director · Director at Cabaletta Bio, filing Form 4 there in the last year
Michael GerardGeneral Counsel · General Counsel at Cabaletta Bio, filing Form 4 there in the last year