Violin Jonathan
SEC insider (Form 3/4/5 filer). CIK 0001730615. Director at Korsana Biosciences, Inc. (KRSA) and 3 other issuers. 6 reported Form 4/5 transactions since Sep 2024; latest on Jun 2, 2026. Located in WALTHAM, MA.
Companies Violin Jonathan has filed insider reports for
- Korsana Biosciences, Inc. (KRSA): Director, Officer, See Remarks
- CRESCENT BIOPHARMA, INC. (CBIO): Director
- Dianthus Therapeutics, Inc. /DE/ (DNTH): Director
- Astria Therapeutics, Inc. (ATXS): Director
Violin Jonathan
CIK: 0001730615
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Discretionary Trading P&L
Holdings
Transaction History (6 total)
- Jun 2, 2026CBIO
CRESCENT BIOPHARMA, INC.
AwardDirectStock Option (Right to Buy)
11.1K shares- - May 21, 2026DNTH
Dianthus Therapeutics, Inc. /DE/
AwardDirectStock Option (Right to Buy)
6.1K shares- - Jan 23, 2026ATXS
Astria Therapeutics, Inc.
DispositionDirect263.3K shares- - Jun 23, 2025CBIO
GLYCOMIMETICS INC
AwardDirectStock Option (Right to Buy)
9K shares- - Jun 11, 2025ATXS
Astria Therapeutics, Inc.
AwardDirectStock Option (Right to Buy)
26.6K shares- - May 22, 2025DNTH
Dianthus Therapeutics, Inc. /DE/
AwardDirectStock Option (Right to Buy)
12.5K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Jun 2, 2026 |  CBIO CRESCENT BIOPHARMA, INC. | Award Stock Option (Right to Buy) | 11,050 | - | - | Direct |
| May 21, 2026 |  DNTH Dianthus Therapeutics, Inc. /DE/ | Award Stock Option (Right to Buy) | 6,090 | - | - | Direct |
| Jan 23, 2026 |  ATXS Astria Therapeutics, Inc. | Disposition | 263,321 | - | $0 | Direct |
| Jun 23, 2025 | CBIO GLYCOMIMETICS INC | Award Stock Option (Right to Buy) | 9,023 | - | - | Direct |
| Jun 11, 2025 | ATXS Astria Therapeutics, Inc. | Award Stock Option (Right to Buy) | 26,550 | - | - | Direct |
| May 22, 2025 | DNTH Dianthus Therapeutics, Inc. /DE/ | Award Stock Option (Right to Buy) | 12,500 | - | - | Direct |
1-6 of 6 transactions