Kosacz Barbara
SEC insider (Form 3/4/5 filer). CIK 0001763316. Director at XOMA Royalty Corp (XOMA) and 1 other issuer. 13 reported Form 4/5 transactions since Sep 2024; latest on Jul 14, 2026. Located in EMERYVILLE, CA.
Companies Kosacz Barbara has filed insider reports for
- XOMA Royalty Corp (XOMA): Director
- LeonaBio, Inc. (LONA): Director
Kosacz Barbara
CIK: 0001763316
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 (13 total)
- Jul 14, 2026XOMA
XOMA Royalty Corp
DispositionDirectStock Option (Right to Buy)
11K shares- - Jul 14, 2026XOMA
XOMA Royalty Corp
DispositionDirectStock Option (Right to Buy)
5.1K shares- - Jul 14, 2026XOMA
XOMA Royalty Corp
DispositionDirectStock Option (Right to Buy)
9K shares- - Jul 14, 2026XOMA
XOMA Royalty Corp
DispositionDirectStock Option (Right to Buy)
9.8K shares- - Jul 14, 2026XOMA
XOMA Royalty Corp
OtherDirect6.3K shares- - Jul 14, 2026XOMA
XOMA Royalty Corp
DispositionDirectStock Option (Right to Buy)
20K shares- - Jul 14, 2026XOMA
XOMA Royalty Corp
DispositionDirectStock Option (Right to Buy)
8.2K shares- - Jul 14, 2026XOMA
XOMA Royalty Corp
DispositionDirectStock Option (Right to Buy)
6.2K shares- - Jun 23, 2026LONA
LeonaBio, Inc.
AwardDirectStock Option (Right to Buy)
28K shares- - May 21, 2026XOMA
XOMA Royalty Corp
AwardDirect3.6K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Jul 14, 2026 |  XOMA XOMA Royalty Corp | Disposition Stock Option (Right to Buy) | 10,967 | - | - | Direct |
| Jul 14, 2026 | XOMA XOMA Royalty Corp | Disposition Stock Option (Right to Buy) | 5,101 | - | - | Direct |
| Jul 14, 2026 | XOMA XOMA Royalty Corp | Disposition Stock Option (Right to Buy) | 8,996 | - | - | Direct |
| Jul 14, 2026 | XOMA XOMA Royalty Corp | Disposition Stock Option (Right to Buy) | 9,763 | - | - | Direct |
| Jul 14, 2026 | XOMA XOMA Royalty Corp | Other | 6,269 | - | $0 | Direct |
| Jul 14, 2026 | XOMA XOMA Royalty Corp | Disposition Stock Option (Right to Buy) | 19,979 | - | - | Direct |
| Jul 14, 2026 | XOMA XOMA Royalty Corp | Disposition Stock Option (Right to Buy) | 8,167 | - | - | Direct |
| Jul 14, 2026 | XOMA XOMA Royalty Corp | Disposition Stock Option (Right to Buy) | 6,152 | - | - | Direct |
| Jun 23, 2026 |  LONA LeonaBio, Inc. | Award Stock Option (Right to Buy) | 28,000 | - | - | Direct |
| May 21, 2026 | XOMA XOMA Royalty Corp | Award | 3,586 | - | $0 | Direct |
1-10 of 13 transactions