Olin
OLN · NYSE
$15.15−$0.04 (−0.26%)TodayMarket closed ·
Prev close $15.19
Who owns OLN
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 58.7% of OLN’s shares.
- Hotchkis and Wiley Capital Management, LLC14.1%
- BlackRock Institutional Trust Company, N.A.8.8%
- Dimensional Fund Advisors, L.P.5.4%
- AQR Capital Management, LLC5.0%
- Next 6 largest institutions25.4%
- All other shareholders41.3%
| Holder | Shares | % of shares |
|---|---|---|
| Hotchkis and Wiley Capital Management, LLC | 16.02M | 14.06% |
| BlackRock Institutional Trust Company, N.A. | 10.09M | 8.85% |
| Dimensional Fund Advisors, L.P. | 6.17M | 5.41% |
| AQR Capital Management, LLC | 5.74M | 5.04% |
| Vanguard Portfolio Management, LLC | 5.45M | 4.78% |
| Vanguard Capital Management, LLC | 5.14M | 4.51% |
| Sanders Capital, LLC | 5.01M | 4.39% |
| State Street Investment Management (US) | 4.80M | 4.21% |
| Fuller & Thaler Asset Management Inc. | 4.30M | 3.77% |
| Yacktman Asset Management LP | 4.21M | 3.69% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| Vanguard Windsor II Fund | 5.01M | 4.39% |
| iShares Core S&P Mid-Cap ETF | 3.99M | 3.50% |
| Vanguard Total Stock Market Index Fund | 3.64M | 3.19% |
| Undiscovered Managers Behavioral Value Fund | 3.28M | 2.88% |
| Vanguard Small-Cap Index Fund | 2.62M | 2.30% |
Insider trades
Form 4 filings by officers, directors and large holders
Insiders made no open-market buys or sales of OLN in the last 6 months.
| Insider | Type | Shares | Value |
|---|---|---|---|
| Kohl Florian J | Option exercise | 1.25K | — |
| Kohl Florian J | Tax withholding | 492 | $12.63K |
| Kohl Florian J | Option exercise | 1.25K | — |
| Kohl Florian J | Option exercise | 2.50K | — |
| Kohl Florian J | Tax withholding | 819 | $22.17K |
| Kohl Florian J | Option exercise | 2.50K | — |
| Ehrhardt Marc | Option exercise | 2.50K | — |
| Ehrhardt Marc | Option exercise | 5.21K | — |
| Ehrhardt Marc | Tax withholding | 1.88K | $53.46K |
| Ehrhardt Marc | Option exercise | 2.50K | — |
Congressional trades
Disclosed by members of Congress over the last 12 months
| Member | Type | Amount | Traded |
|---|---|---|---|
| Lisa McClainHouse | Purchase | $15K–$50K | Sep 14, 2026 |
Short interest
Settled Sep 30, 2026
- Shares short
- 14.16M
- Days to cover
- 5.22
- % of shares outstanding
- 12.43%
- Average daily volume
- 2.71M
- Change since last report
- +9.7%
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