David S. Buzby

David S. Buzby, listed as board member, has filed trades across 2 companies (mainly through SEC (Form 4)), most often in Stem, Inc. and Spring Valley Acquisition Corp. II. Over a trading history stretching from 7 July 2021 to 7 August 2026, the count stands at 17 filings.

In open-market terms, that means 3 purchases worth €443k on one side and 3 sales worth €2.5M on the other. The net balance comes to €2.1M on the selling side. Open-market purchases are the filings investors watch most closely, because the insider pays for the shares out of pocket. Other entries cover 6 option exercises.

A typical purchase (the median) is worth €106k. Of 3 purchases, 2 formed part of a group of insiders buying within 30 days of each other. When several insiders buy within a few weeks of each other, analysts speak of a cluster purchase.

The latest filing, published on 11 August 2026, reports an option exercise in Stem, Inc. The latest purchase dates back some time: it was published 945 days ago, on 20 March 2024. Typically, a trade is published a median of 3 days after it takes place. For comparison, the SEC allows two business days to file a Form 4. These figures are compiled from regulatory filings published by SEC (Form 4). They describe what insiders did and are not a recommendation.