Summary
Updated Aug 30, 2026
Matthew S. Darnall is Director of OLIN Corp (OLN). 1 SEC Form 4 filing on record, dated 5 May 2026.
Trading Pattern
InsiderAlpha's records for Matthew S. Darnall go back to 2026: 1 primary Form 4 filing, an average of 1.0 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 Matthew S. Darnall 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.
- Todd A. Slater - $2.07M of OLN open-market activity in the last 12 months
- Deon Carter - $154K of OLN open-market activity in the last 12 months
- R. Nichole Sumner - $107K of OLN open-market activity in the last 12 months
- Teresa M. Vermillion - $94K of OLN open-market activity in the last 12 months
- Angela M. Castle - $58K of OLN 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 Matthew S. Darnall?
Matthew S. Darnall is a corporate insider, tracked as Director of OLIN Corp (OLN). InsiderAlpha holds 1 primary Form 4 filing for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
When did Matthew S. Darnall last file a Form 4?
The only primary Form 4 on record is dated 5 May 2026.
Where can I see all of Matthew S. Darnall'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 Matthew S. Darnall 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