Barbara Gayle Duncan

Barbara Gayle Duncan is a declared insider at 5 companies; the most frequent names are Halozyme Therapeutics, Inc., Immunomedics Inc and Intercept Pharmaceuticals, Inc. In total, 18 filings cover trades dated from 1 January 2016 to 18 June 2026.

The open-market record consists of 4 sales worth €147k, with no purchase. Other entries cover 5 share grants and 8 option exercises.

The record was last updated on 23 June 2026 with an option exercise in Atea Pharmaceuticals, Inc. Typically, a trade is published a median of 2 days after it takes place. The legal deadline for a Form 4 is two business days after the transaction. Sales are harder to read than purchases, since they often meet personal needs such as tax or diversification. These figures are compiled from regulatory filings published by SEC (Form 4). They describe what insiders did and are not a recommendation.