Kosacz Barbara
- SEC CIK
- 0001763316
No open-market purchases or sales filed in the past year.
Current role at each company
- XOMA XOMA Royalty CorpDirectoras of Jul 14, 2026
- LONA LeonaBio, Inc.Directoras of Jun 24, 2026
- CERO Cero Therapeutics Holdings, Inc.Directoras of Feb 16, 2024
- KRON Kronos Bio, Inc.COO & General Counselas of Jan 5, 2024
Open-market trades in the past year
Open-market purchases (P) and sales (S) filed in the last 365 days, not counting derivative securities or duplicate filings. Values leave out price outliers.
- Bought
- –
- 0 filings
- Sold
- –
- 0 filings
- Net
- –
- Bought minus sold
- Companies
- 0
- With open-market trades
Trades
Every Form 4 that lists Kosacz Barbara as a reporting owner, including filings made jointly with others, grouped by company. Each row adds up one type of transaction in one filing. Only open-market purchases (P) and sales (S) are shown by default.
KRON Kronos Bio, Inc.
COO & General Counsel1 trade
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Jan 5, 2024 (view filing) | Jan 4 | 1 day | Kosacz BarbaraCOO & General Counsel | SSale | −10.7K | $1.18 | −$12.6K | −1.1%929.0K after |