David W. Huml

David W. Huml, listed as chief executive, appears in our data through filings on Tennant Co shares, published by SEC (Form 4). Between 3 November 2014 and 6 March 2026, the trades on record add up to 80 filings.

On the open market, the record shows 3 purchases worth €218k and 12 sales worth €4.2M. The net balance comes to €4.0M 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 49 share grants and 9 option exercises. 2026 to date brings 3 purchases and no sales.

In size, the median ticket on the buying side is €67k. Clusters matter here: 3 out of 3 purchases overlapped with buying by a colleague within 30 days. Purchases made close together by different insiders form what is called a cluster. After 3 purchases with a full 90-day history, the hit rate stands at 100% and the median 90-day move at +38.2%. They describe history only and say nothing certain about the share price ahead.

Most recently, on 10 March 2026, the filings show a transaction in Tennant Co. The last purchase on record was published on 2 March 2026, which is 251 days ago. The median gap between a trade and its publication by SEC (Form 4) is 2 days. Section 16 rules allow two business days to file each Form 4. 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.