Diane K. Duren

Filings by Diane K. Duren span 3 companies, the busiest being U.S. Silica Holdings, Inc., Werner Enterprises Inc and Union Pacific Corp. Between 2 February 2016 and 12 May 2026, the trades on record add up to 32 filings.

Market trades split into 2 purchases (€418k) and 3 sales (€629k). Taken together, the sales exceed the purchases by €211k. Unlike grants, an open-market purchase is paid for by the insider, at the market price. The rest of the record consists of 21 share grants and 3 option exercises.

Most recently, on 14 May 2026, the filings show a share grant in Werner Enterprises Inc. The last purchase on record was published on 26 April 2018, which is 3,099 days ago. The median gap between a trade and its publication by SEC (Form 4) is 2 days. The legal deadline for a Form 4 is two business days after the transaction. Keep in mind that insiders sell for many reasons unrelated to the outlook, from tax bills to estate planning. Every figure here comes from the filings published by SEC (Form 4) and describes the past, not future prices; it is not investment advice.