InsidersTradesSigma
Total declarations
Companies
▲ Purchases (0 ops.)
▼ Sales (1 ops.)
Insider track record
CEODisclosed buys
0
Disclosed sells
1
T+90 hit rate
100%
T+90 mean return
+1.3%
Across 2 buy signals with a settled T+90 return. Return basis: close on the day after publication.
Signal history
Browse the full record of transactions filed by Kosacz Barbara, Chief Executive Officer. Officer active across 3 companies, notably Kronos Bio, Inc.. Cumulatively, 8 filings have been recorded. Breakdown: 0 buy · 1 sell. Total volume traded: €12k. History available since 15 February 2022. The latest transaction was disclosed on 21 May 2025 (Attribution). Regulator: SEC (Form 4). The full history is free.
Declarations8 total
6,269 sharesCommon StockSEC:0001193125-26-303726:0
5,971 shares0Common StockSEC:0001214659-25-008318:0
5,971 shares0Common StockSEC:0001214659-25-008324:0
5,828 sharesClass A Common StockSEC:0001213900-24-015032:0
10,676 shares@ US$1.1836100.0% of flowCommon StockSEC:0001209191-24-001065:0
138,911 shares0Common StockSEC:0001209191-23-010594:0
53,600 shares0Common StockSEC:0001209191-22-043284:0
53,600 shares0Common StockSEC:0001209191-22-010907:0
8 of 8 declarations
About Kosacz Barbara
Barbara Kosacz is Chief Operating Officer and General Counsel at Kronos Bio, Inc. She is responsible for the operational leadership and legal compliance of the company. With expertise in business law and management, she plays a key role in the overall strategy and protection of the company's interests.
