Ronald W. Barrett

Ronald W. Barrett is a declared insider at 3 companies (board member); the most frequent names are Xenoport Inc, Concert Pharmaceuticals, Inc. and Janux Therapeutics, Inc. Over a trading history stretching from 16 November 2005 to 11 June 2026, the count stands at 1,073 filings.

On the open market, the record shows 3 purchases worth €60k and 1,001 sales worth €4.6M. Sales outweigh purchases by €4.6M. Open-market purchases are the filings investors watch most closely, because the insider pays for the shares out of pocket. The rest of the record consists of 30 share grants and 33 option exercises.

In size, the median ticket on the buying side is €18k.

The record was last updated on 12 June 2026 with a share grant in Janux Therapeutics, Inc. The most recent open-market purchase was published on 28 May 2014, 4,532 days ago. Between a trade and the moment it shows up on SEC (Form 4), the median delay is 2 days. Section 16 rules allow two business days to file each Form 4. Keep in mind that insiders sell for many reasons unrelated to the outlook, from tax bills to estate planning. This summary is built from SEC (Form 4) disclosures alone and does not predict where the share price will go.