← United States · Coverage record
US · SEC FORM 4
OLIN Corp
OLN · NYSE · CIK 0000074303 · Basic Materials · Chemicals
INSIDER SIGNAL
0 qualifying P purchase groups
in the current 180-day scoring window
10 Form 4 transaction lines observed in the same window
0 sales · 10 option, withholding, award, gift or other lines
WHY NO ACTIVE SIGNAL?
Score anatomy
No score is calculated because there is no qualifying purchase in the active window. Unavailable inputs are not treated as zero or as a bearish signal.
Why is there no score?
- No qualifying open-market purchase supplies cluster, size, role, recency or conviction inputs.
- Sales and other Form 4 activity remain visible as context and do not create a negative score.
Sales and other Form 4 activity are shown separately and do not create a negative buy signal. Absence of buying is not scored as bearish.
Purchase breadth, concentration & cluster buying
These modules activate when qualifying purchases enter the 180-day research window.
Insider activity timeline
Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.
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SIGNAL HISTORY
Scores are archived only when the company qualifies for a published US buy-signal snapshot. Last qualifying purchase: 2025-08-06 · Ehrhardt Marc.
Recent Form 4 activity
P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.
Market context
Market context has not been captured for this ticker yet. The daily market-context job processes the US universe in rotating batches.
Short interest
Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.
- Shares short
- 14,162,017
- Previous report
- 12,914,192
- Avg daily volume
- 2,714,670
- Days to cover
- 5.2
FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.
Historical equity purchases
Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.
| Transaction date | Reporting owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2025-08-06 | Ehrhardt Marc | Purchase (P) | Common Stock | 20,000 | USD 18.70 | USD 374,000 | SEC filing ↗ |
| 2025-02-04 | Lane Kenneth Todd | Purchase (P) | Common Stock | 7,250 | USD 28.06 | USD 203,435 | SEC filing ↗ |
| 2021-11-03 | Will W Anthony | Purchase (P) | Common Stock $1 par value | 10,000 | USD 61.35 | USD 613,500 | SEC filing ↗ |
| 2020-08-20 | Sutton Scott McDougald | Purchase (P) | Common Stock $1 par value | 10,000 | USD 10.00 | USD 100,000 | SEC filing ↗ |
| 2020-08-13 | Sutton Scott McDougald | Purchase (P) | Common Stock $1 par value | 8,482 | USD 11.41 | USD 96,780 | SEC filing ↗ |
| 2020-08-11 | Sutton Scott McDougald | Purchase (P) | Common Stock $1 par value | 11,518 | USD 11.24 | USD 129,471 | SEC filing ↗ |
| 2020-08-10 | VARILEK JAMES A | Purchase (P) | Common Stock $1 par value | 5,000 | USD 11.05 | USD 55,250 | SEC filing ↗ |
| 2020-08-10 | BUNCH C ROBERT | Purchase (P) | Common Stock $1 par value | 20,000 | USD 10.98 | USD 219,600 | SEC filing ↗ |
Form 4 evidence
41 transaction lines in the latest 365-day window; 289 in local history.
| Date | Owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2026-06-17 | Carter Deon | Option exercise / conversion (M) | Common Stock | 2,500 | USD — | USD — | SEC filing ↗ |
| 2026-06-17 | Carter Deon | Tax withholding (F) | Common Stock | 609 | USD 24.13 | USD 14,695 | SEC filing ↗ |
| 2026-06-01 | Kohl Florian J | Option exercise / conversion (M) | Common Stock | 1,250 | USD — | USD — | SEC filing ↗ |
Show recent Form 4 evidence (30 grouped rows)
| Date | Owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2026-06-17 | Carter Deon | Option exercise / conversion (M) | Common Stock | 2,500 | USD — | USD — | SEC filing ↗ |
| 2026-06-17 | Carter Deon | Tax withholding (F) | Common Stock | 609 | USD 24.13 | USD 14,695 | SEC filing ↗ |
| 2026-06-01 | Kohl Florian J | Option exercise / conversion (M) | Common Stock | 1,250 | USD — | USD — | SEC filing ↗ |
| 2026-06-01 | Kohl Florian J | Tax withholding (F) | Common Stock | 492 | USD 25.67 | USD 12,630 | SEC filing ↗ |
| 2026-05-15 | Kohl Florian J | Option exercise / conversion (M) | Common Stock | 2,500 | USD — | USD — | SEC filing ↗ |
| 2026-05-15 | Kohl Florian J | Tax withholding (F) | Common Stock | 819 | USD 27.07 | USD 22,170 | SEC filing ↗ |
| 2026-05-01 | Ehrhardt Marc | Option exercise / conversion (M) | Common Stock | 7,706 | USD — | USD — | SEC filing ↗ |
| 2026-05-01 | Ehrhardt Marc | Tax withholding (F) | Common Stock | 1,877 | USD 28.48 | USD 53,457 | SEC filing ↗ |
| 2026-05-01 | Babcock Beverley A | Award / grant (A) | Common Stock $1 par value | 2,107 | USD 28.48 | USD 60,007 | SEC filing ↗ |
| 2026-03-18 | Lane Kenneth Todd | Option exercise / conversion (M) | Common Stock | 50,000 | USD — | USD — | SEC filing ↗ |
| 2026-03-18 | Lane Kenneth Todd | Tax withholding (F) | Common Stock | 19,675 | USD 26.25 | USD 516,469 | SEC filing ↗ |
| 2026-02-25 | Carter Deon | Sale (S) | Common Stock | 6,500 | USD 23.73 | USD 154,245 | SEC filing ↗ |
| 2026-02-24 | Castle Angela M | Sale (S) | Common Stock | 2,379 | USD 24.25 | USD 57,697 | SEC filing ↗ |
| 2026-02-20 | VERMILLION TERESA M | Option exercise / conversion (M) | Common Stock | 2,318 | USD — | USD — | SEC filing ↗ |
| 2026-02-20 | VERMILLION TERESA M | Tax withholding (F) | Common Stock | 674 | USD 24.09 | USD 16,237 | SEC filing ↗ |
| 2026-02-20 | Sumner R Nichole | Option exercise / conversion (M) | Common Stock | 1,835 | USD — | USD — | SEC filing ↗ |
| 2026-02-20 | Sumner R Nichole | Tax withholding (F) | Common Stock | 538 | USD 24.09 | USD 12,960 | SEC filing ↗ |
| 2026-02-20 | Slater Todd A | Option exercise / conversion (M) | Common Stock | 8,690 | USD — | USD — | SEC filing ↗ |
| 2026-02-20 | Slater Todd A | Tax withholding (F) | Common Stock | 3,850 | USD 24.09 | USD 92,746 | SEC filing ↗ |
| 2026-02-20 | Lane Kenneth Todd | Option exercise / conversion (M) | Common Stock | 36,206 | USD — | USD — | SEC filing ↗ |
| 2026-02-20 | Lane Kenneth Todd | Tax withholding (F) | Common Stock | 8,811 | USD 24.09 | USD 212,257 | SEC filing ↗ |
| 2026-02-20 | Kohl Florian J | Option exercise / conversion (M) | Common Stock | 6,035 | USD — | USD — | SEC filing ↗ |
| 2026-02-20 | Kohl Florian J | Tax withholding (F) | Common Stock | 1,470 | USD 24.09 | USD 35,412 | SEC filing ↗ |
| 2026-02-20 | FLAUGHER BRETT A | Option exercise / conversion (M) | Common Stock | 6,276 | USD — | USD — | SEC filing ↗ |
| 2026-02-20 | FLAUGHER BRETT A | Tax withholding (F) | Common Stock | 1,839 | USD 24.09 | USD 44,302 | SEC filing ↗ |
| 2026-02-20 | Castle Angela M | Option exercise / conversion (M) | Common Stock | 3,380 | USD — | USD — | SEC filing ↗ |
| 2026-02-20 | Castle Angela M | Tax withholding (F) | Common Stock | 1,003 | USD 24.09 | USD 24,162 | SEC filing ↗ |
| 2026-02-20 | Carter Deon | Option exercise / conversion (M) | Common Stock | 6,759 | USD — | USD — | SEC filing ↗ |
| 2026-02-20 | Carter Deon | Tax withholding (F) | Common Stock | 1,793 | USD 24.09 | USD 43,193 | SEC filing ↗ |
| 2026-02-18 | VERMILLION TERESA M | Award / grant (A) | Common Stock | 79 | USD 0.00 | USD 0 | SEC filing ↗ |
Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.
Snapshot & identity
| Snapshot date | 2026-10-19 |
|---|---|
| Ranking version | US-v1.2 |
| Data quality | PASS ELIGIBLE · — |
| Ticker | OLN |
| CIK | 0000074303 |
| Sector | Basic Materials |
| Industry | Chemicals Yahoo Finance |
| SEC SIC | 2800 Chemicals & Allied Products |
| Exchange | NYSE |
Data coverage
| Local Form 4 history | 289 transaction lines from 2020-01-17 to 2026-06-17 9 P purchase lines · 90 S sale lines · 190 other lines |
|---|---|
| SEC company submissions | Open SEC filings ↗ |
Local ledger as of 2026-10-19. Mapping status is an audit field and does not erase SEC filing evidence.