William L. Aamoth

All filings by William L. Aamoth on record concern Steris Corp. Between 11 May 2006 and 31 May 2013, the trades on record add up to 50 filings.

The open-market side counts 6 purchases for €61k alongside 15 sales for €1.5M. On balance, insiders were net sellers of €1.4M. Unlike grants, an open-market purchase is paid for by the insider, at the market price. The rest of the record consists of 16 share grants and 11 option exercises. So far in 2013, the count stands at no purchases and 4 sales.

The median purchase comes to €9,599. Looking at 6 purchases old enough to measure, the stock rose over the following 90 days in 83% of cases; the median change was +15.1%. These figures describe past trades and do not predict future prices.

Most recently, on 3 June 2013, the filings show a share grant in Steris Corp. The last purchase on record was published on 10 August 2009, which is 6,283 days ago. 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. A sale on its own says little: insiders also sell to pay tax, fund a purchase or diversify. Source: insider filings from SEC (Form 4). Past trades are no guide to future returns.