Olin Corporation
Ownership
Ownership Structure
Who owns Olin Corporation (OLN)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 94.4% of the shares are freely tradable; institutional investors hold 106.2%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Hotchkis & Wiley Capital Management LLC | 14.06 | 16,021,214 | +6.2 | 06/30/2026 |
| BlackRock Inc | 10.51 | 11,984,254 | +4.3 | 06/30/2026 |
| Dimensional Fund Advisors, Inc. | 5.41 | 6,166,477 | +9.6 | 06/30/2026 |
| AQR Capital Management LLC | 4.83 | 5,510,335 | +372.5 | 06/30/2026 |
| Vanguard Portfolio Management, LLC | 4.78 | 5,447,478 | +0.1 | 06/30/2026 |
| Vanguard Capital Management, LLC | 4.51 | 5,138,572 | +2.0 | 06/30/2026 |
| State Street Corp | 4.21 | 4,799,788 | +0.0 | 06/30/2026 |
| Fuller & Thaler Asset Management Inc | 3.77 | 4,301,590 | -14.2 | 06/30/2026 |
| Yacktman Asset Management Co | 3.69 | 4,209,403 | +2.9 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Vanguard Windsor II Inv | 4.39 | 5,007,700 | +0.0 | 06/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Data as of: October 30, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.