InsidersTradesSigma
Total declarations
Company
▲ Purchases (0 ops.)
▼ Sales (0 ops.)
Insider track record
CEODisclosed buys
0
Disclosed sells
0
Not enough buy signals with a settled T+90 horizon to measure a track record yet.
Signal history
Discover the detailed record of transactions filed by Malecek Michael J, Executive. Officer active across 1 company, notably Prothena CORP Public Ltd Co. Cumulatively, 13 filings have been recorded. History available since 27 October 2021. The latest transaction was disclosed on 28 July 2025 (Attribution). Regulator: SEC (Form 4). The full history is accessible without signup.
Companies and markets linked to Malecek Michael J
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
Declarations13 total
80,000 shares0Ordinary Shares, par value $0.01 per shareSEC:0000905148-25-002657:0
5,000 shares@ US$10.273.2% of flowOrdinary Shares, par value $0.01 per shareSEC:0000905148-23-001024:0
5,000 shares@ US$10.273.0% of flowOrdinary Shares, par value $0.01 per shareSEC:0000905148-23-000803:0
5,000 shares@ US$10.273.0% of flowOrdinary Shares, par value $0.01 per shareSEC:0001140361-23-036291:0
5,000 shares@ US$10.273.0% of flowOrdinary Shares, par value $0.01 per shareSEC:0001140361-23-032003:0
5,000 shares@ US$10.273.1% of flowOrdinary Shares, par value $0.01 per shareSEC:0001140361-23-027617:0
5,000 shares@ US$10.273.0% of flowOrdinary Shares, par value $0.01 per shareSEC:0001140361-23-021747:0
5,000 shares@ US$10.273.1% of flowOrdinary Shares, par value $0.01 per shareSEC:0001140361-23-015527:0
15,000 shares@ US$10.279.3% of flowOrdinary Shares, par value $0.01 per shareSEC:0001567619-23-005290:0
5,000 shares@ US$10.273.2% of flowOrdinary Shares, par value $0.01 per shareSEC:0001140361-22-044321:0
65,000 shares@ US$10.2742.9% of flowOrdinary Shares, par value $0.01 per shareSEC:0001567619-22-018925:0
10,000 shares@ US$10.276.6% of flowOrdinary Shares, par value $0.01 per shareSEC:0001567619-21-020909:0
10,000 shares@ US$10.276.5% of flowOrdinary Shares, par value $0.01 per shareSEC:0001567619-21-019011:0
13 of 13 declarations
About Malecek Michael J
Malecek Michael J is Dirigeant at Prothena CORP Public Ltd Co, where he serves as Chief Legal Officer. He has made 13 filings in total, and across the 13 recent filings available, the reported activity is mainly option exercises, over the period from 2021-10-29 to 2025-07-30.
