Nichtberger Steven
SEC insider (Form 3/4/5 filer). CIK 0001487989. President & CEO at Cabaletta Bio, Inc. (CABA). 15 reported Form 4/5 transactions since Sep 2024; latest on Mar 2, 2026. Located in PHILADELPHIA, PA.
Companies Nichtberger Steven has filed insider reports for
- Cabaletta Bio, Inc. (CABA): Director, Officer, President & CEO
Nichtberger Steven
CIK: 0001487989
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 (15 total)
- Mar 2, 2026CABA
Cabaletta Bio, Inc.
AwardDirectStock Option (Right to Buy)
674K shares- - Jan 21, 2026CABA
Cabaletta Bio, Inc.
PurchaseDirect45K shares at avg. $2.24$101K - May 19, 2025CABA
Cabaletta Bio, Inc.
DispositionDirectStock Option (Right to Buy)
99.7K shares- - May 19, 2025CABA
Cabaletta Bio, Inc.
DispositionDirectStock Option (Right to Buy)
300K shares- - May 19, 2025CABA
Cabaletta Bio, Inc.
AwardDirectStock Option (Right to Buy)
300K shares- - May 19, 2025CABA
Cabaletta Bio, Inc.
DispositionDirectStock Option (Right to Buy)
333.5K shares- - May 19, 2025CABA
Cabaletta Bio, Inc.
AwardDirectStock Option (Right to Buy)
333.5K shares- - May 19, 2025CABA
Cabaletta Bio, Inc.
DispositionDirectStock Option (Right to Buy)
380K shares- - May 19, 2025CABA
Cabaletta Bio, Inc.
AwardDirectStock Option (Right to Buy)
380K shares- - May 19, 2025CABA
Cabaletta Bio, Inc.
DispositionDirectStock Option (Right to Buy)
411.6K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Mar 2, 2026 | CABA Cabaletta Bio, Inc. | Award Stock Option (Right to Buy) | 674,000 | - | - | Direct |
| Jan 21, 2026 | CABA Cabaletta Bio, Inc. | Purchase | 45,000 | $2.24 | $100,778 | Direct |
| May 19, 2025 | CABA Cabaletta Bio, Inc. | Disposition Stock Option (Right to Buy) | 99,714 | - | - | Direct |
| May 19, 2025 | CABA Cabaletta Bio, Inc. | Disposition Stock Option (Right to Buy) | 300,000 | - | - | Direct |
| May 19, 2025 | CABA Cabaletta Bio, Inc. | Award Stock Option (Right to Buy) | 300,000 | - | - | Direct |
| May 19, 2025 | CABA Cabaletta Bio, Inc. | Disposition Stock Option (Right to Buy) | 333,500 | - | - | Direct |
| May 19, 2025 | CABA Cabaletta Bio, Inc. | Award Stock Option (Right to Buy) | 333,500 | - | - | Direct |
| May 19, 2025 | CABA Cabaletta Bio, Inc. | Disposition Stock Option (Right to Buy) | 380,000 | - | - | Direct |
| May 19, 2025 | CABA Cabaletta Bio, Inc. | Award Stock Option (Right to Buy) | 380,000 | - | - | Direct |
| May 19, 2025 | CABA Cabaletta Bio, Inc. | Disposition Stock Option (Right to Buy) | 411,600 | - | - | Direct |
1-10 of 15 transactions