Summary
Updated Aug 30, 2026
Thomas H. Robb is EVP - Manufacturing of KAISER ALUMINUM CORP (KALU). 2 SEC Form 4 filings on record, most recently on 9 March 2026.
Recent Transactions
2Every recent SEC Form 4 transaction Thomas H. Robb has reported, most recent first.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Thomas H. Robb 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.
- Keith Harvey - $8.75M of KALU open-market activity in the last 12 months
- John Malcolm Donnan - $2.80M of KALU open-market activity in the last 12 months
- Brett Wilcox - $2.62M of KALU open-market activity in the last 12 months
- Neal E. West - $1.48M of KALU open-market activity in the last 12 months
- Blain Tiffany - $813K of KALU open-market activity in the last 12 months
- Richard P. Grimley - $261K of KALU 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 Thomas H. Robb?
Thomas H. Robb is a corporate insider, tracked as EVP - Manufacturing of KAISER ALUMINUM CORP (KALU). InsiderAlpha holds 2 primary Form 4 filings for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
When did Thomas H. Robb last file a Form 4?
The most recent primary Form 4 on record is dated 9 March 2026, one of 2 filings going back to 2026.
Where can I see all of Thomas H. Robb'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 Thomas H. Robb 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
