Institutional shares held 99.1 Million
722K calls
543K puts
Total value of holdings $1.96B
$14.3M calls
$10.7M puts
Market Cap $2.7B
136,960,992 Shares Out.
Institutional ownership 72.37%
# of Institutions 419


Latest Institutional Activity in OLN

Top Purchases

Q2 2025
Ilex Capital Partners (Uk) LLP Shares Held: 2.51M ($49.6M)
Q2 2025
Norges Bank Shares Held: 1.39M ($27.4M)
Q2 2025
Ubs Group Ag Shares Held: 1.63M ($32.1M)
Q2 2025
Qube Research & Technologies LTD Shares Held: 772K ($15.2M)
Q2 2025
Woodline Partners LP Shares Held: 749K ($14.8M)

Top Sells

Q2 2025
Millennium Management LLC Shares Held: 214K ($4.22M)
Q2 2025
Citadel Advisors LLC Shares Held: 542K ($10.7M)
Q2 2025
Thrivent Financial For Lutherans Shares Held: 19.9K ($394K)
Q2 2025
Price T Rowe Associates Inc Shares Held: 73.7K ($1.46M)
Q2 2025
Verition Fund Management LLC Shares Held: 226K ($4.46M)

About OLN

Olin Corporation manufactures and distributes chemical products in the United States, Europe, and internationally. It operates through three segments: Chlor Alkali Products and Vinyls; Epoxy; and Winchester. The Chlor Alkali Products and Vinyls segment offers chlorine and caustic soda, ethylene dichloride and vinyl chloride monomers, methyl chloride, methylene chloride, chloroform, carbon tetrachloride, perchloroethylene, hydrochloric acid, hydrogen, bleach products, potassium hydroxide, chlorinated organics intermediates and solvents, and sodium hypochlorite. The Epoxy segment provides epoxy materials and precursors, including aromatics, such as acetone, bisphenol, cumene, and phenol, as well as allyl chloride, epichlorohydrin, and glycerin used for the manufacturers of polymers, resins and other plastic materials, and water purification; liquid and solid epoxy resins that are used in adhesives, marines, protective coatings, composites, and flooring; and converted epoxy resins and additives for use in electrical laminates, paints and coatings, wind blades, electronics, and construction. The Winchester segment offers sporting ammunition products, including shotshells, small caliber centerfire, and rimfire ammunition products for hunters and recreational shooters, and law enforcement agencies; small caliber military ammunition products for use in infantry and mounted weapons; and industrial products comprising gauge loads and powder-actuated tool loads for maintenance applications in power and concrete industries, and powder-actuated tools in construction industry. The company markets its products through its sales force, as well as directly to various industrial customers, mass merchants, retailers, wholesalers, other distributors, and the U.S. Government and its prime contractors. Olin Corporation was incorporated in 1892 and is based in Clayton, Missouri.


Insider Transactions at OLN

Insider Transaction List

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Date Insider Transaction Ownership Type Shares Traded Value / Price
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Last 12 Months Summary

Buy / Acquisition
110K Shares
From 14 Insiders
Exercise of conversion of derivative security 70.3K shares
Open market or private purchase 27.3K shares
Grant, award, or other acquisition 13K shares
Sell / Disposition
32.1K Shares
From 5 Insiders
Payment of exercise price or tax liability 15.6K shares
Open market or private sale 16.5K shares

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