Summary
Updated Aug 31, 2026
Iii John Leo Sullivan is CFO, Treasurer and EVP of NUCOR CORP (NUE). 2 SEC Form 4 filings on record, most recently on 3 June 2026.
Recent Transactions
5Every recent SEC Form 4 transaction Iii John Leo Sullivan has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Iii John Leo Sullivan go back to 2026: 2 primary Form 4 filings, an average of 2.0 per year. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Iii John Leo 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.
- Leon J. Topalian - $21.48M of NUE open-market activity in the last 12 months
- Allen C. Behr - $9.50M of NUE open-market activity in the last 12 months
- David A. Sumoski - $7.46M of NUE open-market activity in the last 12 months
- John J. Hollatz - $3.78M of NUE open-market activity in the last 12 months
- Daniel R. Needham - $3.60M of NUE open-market activity in the last 12 months
- Noah C. Hanners - $1.47M of NUE 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 Iii John Leo Sullivan?
Iii John Leo Sullivan is a corporate insider, tracked as CFO, Treasurer and EVP of NUCOR CORP (NUE). InsiderAlpha holds 2 primary Form 4 filings for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Iii John Leo Sullivan submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Where can I see all of Iii John Leo Sullivan'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.
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