CABA
insider transactionsCabaletta Bio, Inc. — buys & sells by directors, officers and 10% owners A shareholder owning more than 10% of the company. Must report trades, but usually a weaker signal than an officer or director. (SEC Form 4).
Cluster buy signal: Multiple insiders at the same company buying around the same time — often a stronger signal than a single buy. 7 different insiders made open-market purchases in the last 365 days, totalling $271.4K.
Net shares · 365d
+120.8K
120.8K buy · 0 sell
Net value · 365d
$271.4K
$271.4K in · $0 out
Sentiment · 365d
Net buying
100% buying · 0% selling
Open-market trades · 365d
7
120.8K buy · 0 sell
Net buy / sell volume
Not enough data to chart yet.
Tap or hover the chart for daily net volume. Green = net buying, red = net selling.
All transactions
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Grant·A
Director
$0
22.0K sh
Own New
-
Grant·A
Director
$0
22.0K sh
Own New
-
Grant·A
Director
$0
22.0K sh
Own New
-
Grant·A
Director
$0
22.0K sh
Own New
-
Grant·A
Chief Business Officer
$0
175.0K sh
Own New
-
Grant·A
General Counsel
$0
175.0K sh
Own New
-
Grant·A
Chief Medical Officer
$0
225.0K sh
Own New
-
Grant·A
President & CEO
$0
674.0K sh
Own New
-
Grant·A
Anup Marda KEY
Chief Financial Officer
$0
225.0K sh
Own New
-
Buy·P
Chief Medical Officer
$19.9K
8.8K sh · $2.26
Own New
-
Buy·P
Director
$50.3K
22.7K sh · $2.21
Own New
-
Buy·P
Chief Commercial Officer
$50.2K
22.2K sh · $2.27
Own New
-
Buy·P
President & CEO
$100.8K
45.0K sh · $2.24
Own +5%
-
Buy·P
Director
$25.3K
11.1K sh · $2.28
Own +8%
-
Buy·P
General Counsel
$15.0K
6.6K sh · $2.27
Own New
-
Buy·P
Director
$10.0K
4.4K sh · $2.27
Own +440%
| Date▾ | Insider | Type | Shares | Value |
|---|---|---|---|---|
| Jun 9, 2026 | Shawn Tomasello | Grant A | 22.0K | $0 |
| Jun 9, 2026 | Mark Simon | Grant A | 22.0K | $0 |
| Jun 9, 2026 | Richard C Henriques JR | Grant A | 22.0K | $0 |
| Jun 9, 2026 | Catherine Bollard | Grant A | 22.0K | $0 |
| Mar 2, 2026 | Arun Das | Grant A | 175.0K | $0 |
| Mar 2, 2026 | Michael Gerard | Grant A | 175.0K | $0 |
| Mar 2, 2026 | David J. Chang | Grant A | 225.0K | $0 |
| Mar 2, 2026 | Steven Nichtberger KEY | Grant A | 674.0K | $0 |
| Mar 2, 2026 | Anup Marda KEY | Grant A | 225.0K | $0 |
| Jan 21, 2026 | David J. Chang | Buy P | 8.8K | $19.9K |
| Jan 21, 2026 | Shawn Tomasello | Buy P | 22.7K | $50.3K |
| Jan 21, 2026 | Steve Gavel | Buy P | 22.2K | $50.2K |
| Jan 21, 2026 | Steven Nichtberger KEY | Buy P | 45.0K | $100.8K |
| Jan 21, 2026 | Mark Simon | Buy P | 11.1K | $25.3K |
| Jan 21, 2026 | Michael Gerard | Buy P | 6.6K | $15.0K |
| Jan 21, 2026 | Catherine Bollard | Buy P | 4.4K | $10.0K |
About CABA insider trading
This page tracks insider transactions for Cabaletta Bio, Inc. (CABA) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.