John Tamerius

John Tamerius is a declared insider of Quidel Corp, with filings sourced from SEC (Form 4). Between 19 May 2009 and 5 February 2017, the trades on record add up to 69 filings.

In open-market terms, that means 3 purchases worth €6,909 on one side and 23 sales worth €3.1M on the other. Sales outweigh purchases by €3.1M. Open-market purchases are the filings investors watch most closely, because the insider pays for the shares out of pocket. The rest of the record consists of 25 share grants and 17 option exercises.

In size, the median ticket on the buying side is €1,842. Looking at 3 purchases old enough to measure, the stock rose over the following 90 days in 100% of cases; the median change was +25.9%. This is a record of the past, not a forecast.

On 8 February 2017 came the latest disclosure, a share grant for €17k in Quidel Corp. The last insider purchase was made public on 10 August 2011, 5,569 days ago. 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. Selling is not necessarily a view on the stock: liquidity needs and diversification are common motives. Every figure here comes from the filings published by SEC (Form 4) and describes the past, not future prices; it is not investment advice.