Who owns Olin Corp (OLN)?
168 US mutual funds and ETFs from 77 fund families reported a position in OLN for the quarter ending 2026-06-30. Against their own report a quarter earlier, 51 raised shares, 20 opened a new position, 46 cut and 4 sold out.
Largest fund families
| Fund family | Funds | Share of fund-held shares |
|---|---|---|
| Vanguard Index Funds | 4 | 28.8% |
| Ishares Trust | 11 | 18.7% |
| Hotchkis & Wiley Funds/De/ | 8 | 12.0% |
| Undiscovered Managers Funds | 1 | 10.5% |
| Amg Funds | 2 | 10.0% |
| Spdr Series Trust | 9 | 2.5% |
Tracked managers holding OLN
| Investor | Book weight |
|---|---|
| Chris Bloomstran · Semper Augustus | 4.8% |
Source: SEC Form N-PORT, which funds file about 60 days after quarter end, and the latest 13F filings. Share counts, not trades: a change can reflect fund inflows or outflows rather than a decision about OLN. A record of holdings, not a forecast and not investment advice. See all owner pages or the forecast board for the names our model ranks.
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