John F. Bierbaum

John F. Bierbaum appears in our data through filings on Northfield Laboratories Inc /DE/ shares, published by SEC (Form 4). We count 3 filings; the first trade dates from 20 September 2006 and the latest from 2 January 2009.

No open-market purchase or sale appears among the filings, only grants, plan transactions and other operations. Because grants and exercises are largely decided by remuneration plans, they are not counted as purchases here.

The newest entry dates from 6 January 2009: a share grant, in Northfield Laboratories Inc /DE/. Typically, a trade is published a median of 2 days after it takes place. US insiders must file a Form 4 within two business days of a trade. These figures are compiled from regulatory filings published by SEC (Form 4). They describe what insiders did and are not a recommendation.