Summary
Updated Aug 31, 2026
Mark Barrysmith is Chief Accounting Officer of Unity Software Inc. (U). 11 SEC Form 4 filings on record going back to 2024, most recently on 28 May 2026. Most recent open-market trade: sold $360K of U on 28 May 2026. Lifetime open-market sales: $3.08M.
Recent Transactions
14Every recent SEC Form 4 transaction Mark Barrysmith has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Mark Barrysmith go back to 2024: 11 primary Form 4 filings, an average of 3.7 per year. 3 recorded transactions carry a Rule 10b5-1 flag, meaning they were pre-scheduled under a written trading plan rather than discretionary.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Mark Barrysmith files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- David Helgason - $59.98M of U open-market activity in the last 12 months
- Tomer Bar-Zeev - $42.44M of U open-market activity in the last 12 months
- Matthew S. Bromberg - $6.22M of U open-market activity in the last 12 months
- Jarrod Yahes - $6.06M of U open-market activity in the last 12 months
- Alexander Blum - $3.59M of U open-market activity in the last 12 months
- Shlomo Dovrat - $1.29M of U open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Mark Barrysmith?
Mark Barrysmith is a corporate insider, tracked as Chief Accounting Officer of Unity Software Inc. (U). InsiderAlpha holds 11 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Mark Barrysmith last file a Form 4?
The most recent primary Form 4 on record is dated 28 May 2026, one of 11 filings going back to 2024.
Has Mark Barrysmith been buying or selling stock?
Recorded transactions: 0 open-market purchases and 14 open-market sales ($3.08M) across all tracked filings.
Where can I see all of Mark Barrysmith's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
Learn More
Follow Mark Barrysmith and every insider like them
A free account opens the full scored daily plan and every past day, a watchlist for any ticker, and 3 months of price history on every company page. No card.
Free plan available · Paid plans start with a 7-day free trial