Herm Rosenman

Filings by Herm Rosenman span 4 companies, the busiest being Natera, Inc., Vivus Inc and DermTech, Inc. Over a trading history stretching from 12 May 2016 to 24 June 2026, the count stands at 86 filings.

The open-market side counts 5 purchases for €396k alongside 12 sales for €3.8M. Sales outweigh purchases by €3.4M. Unlike grants, an open-market purchase is paid for by the insider, at the market price. Besides market trades, the filings include 27 share grants and 32 option exercises. So far in 2026, the count stands at no purchases and 1 sale.

A typical purchase (the median) is worth €69k. Clusters matter here: 3 out of 4 purchases overlapped with buying by a colleague within 30 days. A cluster is several different insiders buying the same stock within a short window, a pattern studied more closely than a single purchase.

The latest filing, published on 26 June 2026, reports an open-market sale of €3.6M in Natera, Inc. The latest purchase dates back some time: it was published 1,604 days ago, on 31 May 2022. Typically, a trade is published a median of 4 days after it takes place. US insiders must file a Form 4 within two business days of a trade. Sales are harder to read than purchases, since they often meet personal needs such as tax or diversification. This summary is built from SEC (Form 4) disclosures alone and does not predict where the share price will go.