Who owns Olin Corporation?
Institutional ownership of OLN from SEC Form 13F filings across 268 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
268
13F holders
$1.15B
value, 2026 filers
51.3%
of shares outstanding (58.5M sh)
50
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30· % of fund = share of the manager's own book · % of co. = share of OLN's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 12.0M | $237.5M | 0.0% | 10.5% | +4.3% |
| 2 | VANGUARD PORTFOLIO MANAGEMENT LLC | 5.4M | $108.0M | 0.0% | 4.8% | +0.1% |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | 5.1M | $101.8M | 0.0% | 4.5% | -49.0% |
| 4 | GOLDMAN SACHS GROUP INC | 2.6M | $50.5M | 0.0% | 2.2% | -10.1% |
| 5 | CITADEL ADVISORS LLC | 2.2M | $44.3M | 0.0% | 2% | +36.2% |
| 6 | GEODE CAPITAL MANAGEMENT, LLC | 2.1M | $41.8M | 0.0% | 1.8% | -0.2% |
| 7 | Sixth Street Partners Management Company, L.P.NEW | 1.5M | $30.6M | 5.3% | 1.4% | new |
| 8 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.5M | $30.6M | 0.0% | 1.4% | -0.9% |
| 9 | MORGAN STANLEY | 1.4M | $27.4M | 0.0% | 1.2% | -16.2% |
| 10 | CAPTRUST FINANCIAL ADVISORS | 1.3M | $26.2M | 0.0% | 1.2% | +6314.7% |
| 11 | BANK OF AMERICA CORP /DE/ | 1.3M | $25.4M | 0.0% | 1.1% | -27.6% |
| 12 | Bank of New York Mellon Corp | 1.2M | $23.8M | 0.0% | 1.1% | -2.7% |
| 13 | NORTHERN TRUST CORP | 1.0M | $19.9M | 0.0% | 0.9% | +1.6% |
| 14 | JPMORGAN CHASE & CO | 976,669 | $20.4M | 0.0% | 0.9% | +290.3% |
| 15 | Allianz Asset Management GmbH | 972,709 | $19.3M | 0.0% | 0.9% | +106.6% |
| 16 | Invesco Ltd. | 779,328 | $15.4M | 0.0% | 0.7% | -2.1% |
| 17 | VICTORY CAPITAL MANAGEMENT INC | 773,430 | $15.3M | 0.0% | 0.7% | -1.1% |
| 18 | UBS Group AG | 720,044 | $14.3M | 0.0% | 0.6% | -35.8% |
| 19 | VANGUARD FIDUCIARY TRUST CO | 719,513 | $14.3M | 0.0% | 0.6% | +1.9% |
| 20 | RAYMOND JAMES FINANCIAL INC | 683,398 | $13.5M | 0.0% | 0.6% | -5.3% |
| 21 | FMR LLC | 615,925 | $12.2M | 0.0% | 0.5% | -14.4% |
| 22 | Nuveen, LLC | 584,249 | $11.6M | 0.0% | 0.5% | +1.3% |
| 23 | TWO SIGMA INVESTMENTS, LP | 491,216 | $9.7M | 0.0% | 0.4% | -58.9% |
| 24 | FIRST TRUST ADVISORS LP | 483,174 | $9.6M | 0.0% | 0.4% | -32.2% |
| 25 | MetLife Investment Management, LLC | 457,439 | $9.1M | 0.0% | 0.4% | -27.1% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.