Mark S. Shapiro

Filings by Mark S. Shapiro span 4 companies, the busiest being Endeavor Group Holdings, Inc., TKO Group Holdings, Inc. and Vivmark Residential. Over a trading history stretching from 3 May 2021 to 18 August 2026, the count stands at 29 filings.

Market trades split into 1 purchase (€934k) and 3 sales (€7.2M). The net balance comes to €6.3M on the selling side. 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 9 share grants and 14 option exercises. In 2026 alone, the filings show no purchases and 1 sale.

Most recently, on 19 August 2026, the filings show an option exercise in TKO Group Holdings, Inc. The last insider purchase was made public on 14 November 2023, 1,069 days ago. Filings reach the SEC (Form 4) feed a median of 2 days after the trade. 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. These figures are compiled from regulatory filings published by SEC (Form 4). They describe what insiders did and are not a recommendation.