Anthony O'Sullivan
Chief Development Officer · TMC the metals Co Inc.
- 2025
- Dec 2, 2025
- 3
Other insiders active in the same stocks
Insiders who reported open-market trades in the last 12 months at the companies Anthony O'Sullivan 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.
- Craig Shesky - $1.58M in TMC purchases and sales in the last 12 months
- Brendan May - $133K in TMC purchases and sales in the last 12 months
- Allseas Group S.A. - TMC
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Frequently asked questions
Who is Anthony O'Sullivan?
Anthony O'Sullivan is a corporate insider, tracked as Chief Development Officer of TMC the metals Co Inc. (TMC). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did Anthony O'Sullivan last file a Form 4?
The most recent primary Form 4 on record is dated 2 December 2025, one of 3 filings going back to 2025.
Has Anthony O'Sullivan been buying or selling stock?
Recorded transactions: 0 open-market purchases and 6 open-market sales ($3.98M) across all tracked filings.
