OLIN Corp (OLN)
Data as of , from SEC Form 4 filings.
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About OLIN Corp (OLN)
Olin was founded in 1892 and has been publicly listed since 1917. The company has a unique dual identity compared with some of its chemical peers: it is the world's largest chlor-alkali producer by capacity, and it owns Winchester, a leading US ammunition manufacturer. Olin has three reportable segments: chlor-alkali products and vinyls, epoxies, and Winchester, which represent around 55%, 20%, and 25% of sales, respectively.
- CLAYTON, MO
- 7,849
- 1972
- XNYS
OLN Form 4 activity by transaction type, last 90 days
No Form 4 activity for OLN in the last 90 days.
OLN insider transactions (Form 4)
1937 Form 4 filings on record, the earliest from Nov 12, 2024, newest first. Filing history page 2 of 2.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| R. Nichole Sumner - Officer | Option exercise | Common Stock | 4,750 | $13.14 | $62K | |
| R. Nichole Sumner - Officer | Open-market sale | Common Stock | 4,750 | $22.49 footnote F1 | $107K | |
| R. Nichole Sumner - Officer | Option exercise | Employee Stock Options (Right to Buy) | 4,750 | $0.00 | - | |
| ||||||
 Todd A. Slater - Officer | Option exercise | Common Stock | 92,250 | $13.14 | $1.21M | |
| Todd A. Slater - Officer | Open-market sale | Common Stock | 92,250 | $22.48 footnote F1 | $2.07M | |
| Todd A. Slater - Officer | Option exercise | Employee Stock Options (Right to Buy) | 92,250 | $0.00 | - | |
| ||||||
| Teresa M. Vermillion - Officer | Option exercise | Common Stock | 4,500 | $13.14 | $59K | |
| Teresa M. Vermillion - Officer | Option exercise | Employee Stock Options (Right to Buy) | 4,500 | $0.00 | - | |
| Teresa M. Vermillion - Officer | Open-market sale | Common Stock | 4,500 | $20.86 footnote F1 | $94K | |
| ||||||
| Teresa M. Vermillion - Officer | Option exercise | Common Stock | 6,000 | $13.14 | $79K | |
| Teresa M. Vermillion - Officer | Open-market sale | Common Stock | 6,000 | $21.11 | $127K | |
| Teresa M. Vermillion - Officer | Option exercise | Employee Stock Options (Right to Buy) | 6,000 | $0.00 | - | |
| Marc Ehrhardt - Officer | Open-market purchase | Common Stock | 20,000 | $18.70 | $374K | |
| Kenneth Todd Lane - Officer | Option exercise | Common Stock | 50,000 | - | - | |
| Kenneth Todd Lane - Officer | Tax withholding / forfeiture | Common Stock | 14,683 | $24.89 | $365K | |
| Kenneth Todd Lane - Officer | Option exercise | Restricted Stock Units | 50,000 | $0.00 | - | |
| R. Nichole Sumner - Officer | Option exercise | Common Stock | 10,500 | $27.40 | $288K | |
| R. Nichole Sumner - Officer | Open-market sale | Common Stock | 10,500 | $43.75 | $459K | |
| R. Nichole Sumner - Officer | Option exercise | Employee Stock Options (Right to Buy) | 10,500 | $0.00 | - | |
Stock trades in OLN disclosed by members of the U.S. House in the last 12 months, newest first. Values are the ranges as filed.
| Member | Type | Traded | Disclosed | Value range | Owner | Days to disclose | Filing |
|---|---|---|---|---|---|---|---|
 Lisa C. McClainRepublican, MI-09 | Purchase |
OLN insider trading FAQ
What is the latest insider trade for OLN?
OLIN Corp (OLN) has filed no insider reports in the last 90 days. The most recent on record is dated 2026-06-18. The full record for OLN runs to 37 Form 4 filings, the earliest from 2024-11-12. InsiderAlpha adds new Form 4, Form 144 and 8-K filings as they arrive from SEC EDGAR.
How many insiders are buying OLN stock?
No insider purchases of OLN were filed in the last 90 days. 1 purchase is on record for this company.
How many insiders are selling OLN stock?
No insider sales of OLN were filed in the last 90 days. 7 sales are on record for this company.
Where can I see OLN SEC filings (Form 4, 10-K, 10-Q, 8-K)?
This page collects OLN Form 4 insider transactions, Form 144 sale notices and 8-K filings in one place. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
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Recent insider filings
10The EDGAR links open each original Form 4, so you can check any number on this page against the filing it came from.
- - Deon Carter view on EDGAR
- - Florian J. Kohl view on EDGAR
- - Florian J. Kohl view on EDGAR
- - Julie A. Piggott view on EDGAR
- - Edward Daly view on EDGAR
- - Earl L. Shipp view on EDGAR
- - Carol A. Williams view on EDGAR
- - Matthew S. Darnall view on EDGAR
- - Beverley A. Babcock view on EDGAR
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Learn more
- What the Form 4 transaction codes mean
- Grants, option exercises, gifts and tax withholding are not trades on the market. The codes say which is which.
- Insider activity in Materials
- Where OLN's peers are being bought and sold.
- Every recent Form 4
- The market-wide feed, updated as filings arrive from SEC EDGAR.
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- The daily trading plan of ranked insider buys, on a delay, with the plan archive
