Matthew T. Plavan

Filings by Matthew T. Plavan span 2 companies, the busiest being Arcadia Biosciences, Inc. and Origin Materials, Inc. The record holds 31 filings, for trades running from 26 August 2019 to 4 March 2026.

In open-market terms, that means 13 purchases worth €91k on one side and 6 sales worth €258k on the other. Netting one side against the other leaves €167k of net selling. Open-market purchases are the filings investors watch most closely, because the insider pays for the shares out of pocket. Outside the open market, there are 12 share grants. So far in 2026, the count stands at no purchases and 1 sale.

Half of the purchases are above €7,502 and half below.

The record was last updated on 13 April 2026 with a share grant in Origin Materials, Inc. The latest purchase dates back some time: it was published 2,097 days ago, on 25 January 2021. 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. Source: insider filings from SEC (Form 4). Past trades are no guide to future returns.