Olin (OLN) Held by Superinvestors
OLIN CORP (OLN) is currently held by 7 superinvestors tracked by InsiderSet, with a combined reported market value of approximately $177.70M based on the latest available SEC Form 13F filings for the quarter ended September 30, 2026.
Yacktman Asset Management is currently the largest disclosed institutional shareholder of OLN tracked by InsiderSet, reporting ownership valued at approximately $66.54M in its September 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $75.55M, representing an estimated gain of +13.55% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 100% of the total disclosed OLN value among the investors covered in this analysis. Major shareholders include Yacktman Asset Management, Pzena Investment Management, Semper Augustus Investments Group, and several other long-term asset managers with concentrated positions in OLIN CORP (OLN).
This page ranks the largest institutional OLN shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Yacktman Asset Management | Donald Yacktman | 0.79% | 4,292,873 | $66,539,532 | $75,554,565 | +$9,015,033 | +13.55% |
| Pzena Investment Management | Richard Pzena | 0.18% | 3,966,952 | $61,487,756 | $69,818,355 | +$8,330,599 | +13.55% |
| Semper Augustus Investments Group | Christopher Bloomstran | 4.83% | 2,153,826 | $42,688,822 | $37,907,338 | -$4,781,484 | -11.20% |
| Renaissance Technologies LLC | Jim Simons | 0.01% | 283,500 | $5,618,970 | $4,989,600 | -$629,370 | -11.20% |
| First Eagle U.S. Value | Jean-Marie Eveillard | 0.00% | 40,194 | $796,645 | $707,414 | -$89,231 | -11.20% |
| Sequoia Financial Advisors | 0.00% | 15,982 | $316,764 | $281,283 | -$35,481 | -11.20% | |
| Arbiter Partners Capital Management | Paul Isaac | 0.14% | 12,900 | $255,678 | $227,040 | -$28,638 | -11.20% |
Frequently asked questions about OLN
Who are the largest superinvestors holding OLN?
The largest superinvestors holding OLN in the latest SEC Form 13F filings include Yacktman Asset Management, Pzena Investment Management, Semper Augustus Investments Group, Renaissance Technologies LLC, and First Eagle U.S. Value. InsiderSet ranks these superinvestors by their latest reported OLN position.
What does the OLN superinvestors page include?
This page tracks OLN positions reported by a curated group of notable institutional investors and fund managers through SEC Form 13F. OLIN CORP (OLN) on this page reflects disclosed 13F holdings among those superinvestors, not every institutional shareholder of the stock.
How many superinvestors hold OLN?
InsiderSet currently tracks 7 superinvestors reporting OLN holdings in the latest available 13F data. This is the curated set on this page, not the total number of institutions that own OLN.
How much OLN stock do superinvestors hold?
Superinvestors tracked by InsiderSet disclosed approximately $177.70M in OLN holdings for Q3 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value, and it covers the curated superinvestors on this page rather than every institutional filer.
When were OLN superinvestor holdings last updated?
The latest OLN superinvestor holdings on InsiderSet are based on SEC Form 13F filings for the quarter ended September 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time holdings.
Are superinvestor OLN holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by these superinvestors as of the end of the reporting quarter. A superinvestor may have changed its OLN position after the reporting date.
Are superinvestors buying or selling OLN?
Buying and selling can be analyzed by comparing OLN positions across consecutive 13F reporting periods. InsiderSet's OLN Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View OLN ownership changes.
How have superinvestor OLN holdings changed over time?
InsiderSet tracks OLN holdings among these superinvestors across multiple 13F reporting periods, so holder counts, reported value, and reported shares can be compared over time.