Brian D. Frantz

Brian D. Frantz discloses dealings in 2 companies, chiefly Summit Materials, Inc. and York Space Systems Inc. We count 4 filings; the first trade dates from 29 February 2024 and the latest from 30 January 2026.

Not one of the filings records a straightforward purchase or sale on the market. Because grants and exercises are largely decided by remuneration plans, they are not counted as purchases here.

The record was last updated on 3 February 2026 with a share grant in York Space Systems Inc. Between a trade and the moment it shows up on SEC (Form 4), the median delay is 4 days. For comparison, the SEC allows two business days to file a Form 4. Every figure here comes from the filings published by SEC (Form 4) and describes the past, not future prices; it is not investment advice.