InsidersTradesSigma
Across 4 buy signals with a settled T+90 return. Return basis: close on the day after publication.
Discover the detailed record of transactions filed by Duncan Barbara Gayle. Director active across 3 companies, notably Halozyme Therapeutics, INC.. Aggregated, 10 reports have been logged. Split: 0 buy · 2 sells. History available since 3 February 2023. The latest transaction was filed on 20 June 2025 (Levée d'options). Regulator: SEC (Form 4). The full history is free.
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