Simon Mark
SEC insider (Form 3/4/5 filer). CIK 0001400717. Director at Cabaletta Bio, Inc. (CABA). 11 reported Form 4/5 transactions since Sep 2024; latest on Jun 9, 2026. Located in PHILADELPHIA, PA.
Companies Simon Mark has filed insider reports for
- Cabaletta Bio, Inc. (CABA): Director
Simon Mark
CIK: 0001400717
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
Cabaletta Bio, Inc.
Discretionary Trading P&L
Holdings
Transaction History (11 total)
- Jun 9, 2026CABA
Cabaletta Bio, Inc.
AwardDirectStock Option (Right to Buy)
22K shares- - Jan 21, 2026CABA
Cabaletta Bio, Inc.
PurchaseDirect11.1K shares at avg. $2.28$25K - Jun 9, 2025CABA
Cabaletta Bio, Inc.
AwardDirectStock Option (Right to Buy)
22K shares- - May 19, 2025CABA
Cabaletta Bio, Inc.
DispositionDirectStock Option (Right to Buy)
22K shares- - May 19, 2025CABA
Cabaletta Bio, Inc.
AwardDirectStock Option (Right to Buy)
22K shares- - May 19, 2025CABA
Cabaletta Bio, Inc.
DispositionDirectStock Option (Right to Buy)
22K shares- - May 19, 2025CABA
Cabaletta Bio, Inc.
AwardDirectStock Option (Right to Buy)
22K shares- - May 19, 2025CABA
Cabaletta Bio, Inc.
DispositionDirectStock Option (Right to Buy)
22K shares- - May 19, 2025CABA
Cabaletta Bio, Inc.
AwardDirectStock Option (Right to Buy)
22K shares- - May 19, 2025CABA
Cabaletta Bio, Inc.
DispositionDirectStock Option (Right to Buy)
18.5K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Jun 9, 2026 | CABA Cabaletta Bio, Inc. | Award Stock Option (Right to Buy) | 22,000 | - | - | Direct |
| Jan 21, 2026 | CABA Cabaletta Bio, Inc. | Purchase | 11,061 | $2.28 | $25,261 | Direct |
| Jun 9, 2025 | CABA Cabaletta Bio, Inc. | Award Stock Option (Right to Buy) | 22,000 | - | - | Direct |
| May 19, 2025 | CABA Cabaletta Bio, Inc. | Disposition Stock Option (Right to Buy) | 22,000 | - | - | Direct |
| May 19, 2025 | CABA Cabaletta Bio, Inc. | Award Stock Option (Right to Buy) | 22,000 | - | - | Direct |
| May 19, 2025 | CABA Cabaletta Bio, Inc. | Disposition Stock Option (Right to Buy) | 22,000 | - | - | Direct |
| May 19, 2025 | CABA Cabaletta Bio, Inc. | Award Stock Option (Right to Buy) | 22,000 | - | - | Direct |
| May 19, 2025 | CABA Cabaletta Bio, Inc. | Disposition Stock Option (Right to Buy) | 22,000 | - | - | Direct |
| May 19, 2025 | CABA Cabaletta Bio, Inc. | Award Stock Option (Right to Buy) | 22,000 | - | - | Direct |
| May 19, 2025 | CABA Cabaletta Bio, Inc. | Disposition Stock Option (Right to Buy) | 18,460 | - | - | Direct |
1-10 of 11 transactions