Christopher Tatnall
EVP Global Customer Operations · AXCELIS TECHNOLOGIES INC
- 2025
- Sep 16, 2026
- 8
Other insiders active in the same stocks
Insiders who reported open-market trades in the last 12 months at the companies Christopher Tatnall 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.
- Russell Low - $1.57M in ACLS purchases and sales in the last 12 months
- Todd Sutton - $742K in ACLS purchases and sales in the last 12 months
- Robert John Mahoney - $543K in ACLS purchases and sales in the last 12 months
- John T. Kurtzweil - $486K in ACLS purchases and sales in the last 12 months
- Greg Redinbo - $464K in ACLS purchases and sales in the last 12 months
- Gregory B. Graves - $457K in ACLS purchases and sales in the last 12 months
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Frequently asked questions
Who is Christopher Tatnall?
Christopher Tatnall is a corporate insider, tracked as EVP Global Customer Operations of AXCELIS TECHNOLOGIES INC (ACLS). InsiderAlpha holds 8 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Christopher Tatnall submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has Christopher Tatnall been buying or selling stock?
Recorded transactions: 0 open-market purchases and 1 open-market sale ($175K) across all tracked filings.
