Quentin S. Blackford

Quentin S. Blackford is a declared insider at 6 companies (senior executive); the most frequent names are iRhythm Holdings, Inc., Alphatec Holdings, Inc. and Nuvasive Inc. Over a trading history stretching from 1 January 2016 to 10 August 2026, the count stands at 43 filings.

Both buying and selling appear: 2 purchases worth €1.2M, against 9 sales worth €13.9M. The net balance comes to €12.7M on the selling side. Buying on the open market means paying the going price with one's own funds, a different act from receiving shares as pay. Besides market trades, the filings include 24 share grants and 5 option exercises. Since January 2026: no purchases and 2 sales on the market.

Most recently, on 11 August 2026, the filings show an open-market sale worth €2.9M in iRhythm Holdings, Inc. The last insider purchase was made public on 8 March 2024, 954 days ago. Between a trade and the moment it shows up on SEC (Form 4), the median delay is 2 days. US insiders must file a Form 4 within two business days of a trade. Selling is not necessarily a view on the stock: liquidity needs and diversification are common motives. Source: insider filings from SEC (Form 4). Past trades are no guide to future returns.