OLN on NYSE

Olin Corporation

Logo: Unknown author Unknown author, Public domain, via Wikimedia Commons5

American chemical manufacturing company

Olin Corporation is an American manufacturer of ammunition, chlorine, and sodium hydroxide. The company traces its roots to two companies, both founded in 1892: Franklin W. Olin's Equitable Powder Company and the Mathieson Alkali Works.3 Its shares trade on NYSE under the symbol OLN.1 Wikipedia text CC BY-SA 4.0

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Last updated Oct 21, 2026.

Overview

1892Founded1

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  • TickerOLN on NYSE1
  • Industrychemical industry1
  • HeadquartersClayton1
  • Websitewww.olin.com
  • Incorporated inVA6
  • Business addressOlin Corporation, 190 Carondelet Plaza Suite 1530, Clayton, Mo 631056
  • Filer categoryLarge accelerated filer6
  • Legal formStock Corporation4
  • LEI549300GKK294V7W57P064
  • StatusActive4
  • LEI statusLapsed (not renewed)4
  • Registered addressC/O C T CORPORATION SYSTEM, 23060-6808 Glen Allen, United States4
  • Registered withState Corporation Commission, 001490394

Olin Corporation is an American manufacturer of ammunition, chlorine, and sodium hydroxide. The company traces its roots to two companies, both founded in 1892: Franklin W. Olin's Equitable Powder Company and the Mathieson Alkali Works.3

Financials

From the company’s reports to the SEC. Every number links to the filing it came from.

Key numbers, fiscal 2025

7.4%Gross margin9
0.1%Operating margin9
-1.5%Net margin9
3.7%Revenue growth, 20259
-5.5%Return on equity9
1.48×Debt to equity9
$247.9MFree cash flow9

What sells

Revenue by product, business segment and region, as the company reports it to the SEC.

Business segments

Chlor Alkali Products and Vinyls brought in 54% of the revenue Olin Corporation broke down this way in fiscal 2025.

  1. Chlor Alkali Products and Vinyls$3.7B954%up 1% from 2024
  2. Winchester$1.7B925%up 2% from 2024
  3. Epoxy$1.4B920%up 12% from 2024
Business segments by year
Business segments202320242025
Chlor Alkali Products and Vinyls$4.0B$3.6B$3.7B
Winchester$1.5B$1.7B$1.7B
Epoxy$1.3B$1.2B$1.4B

Regions

United States brought in 68% of the revenue Olin Corporation broke down this way in fiscal 2025.

  1. United States$4.6B968%down 2% from 2024
  2. Other foreign$1.5B923%up 20% from 2024
  3. Europe$647.4M910%up 9% from 2024
Regions by year
Regions202320242025
United States$4.6B$4.7B$4.6B
Other foreign$1.6B$1.3B$1.5B
Europe$603.7M$592.3M$647.4M

Where the money goes

Where each dollar of revenue went, fiscal 2025

  • Cost of revenue90¢$6.3B
  • Selling, general and admin7¢$463.3M
  • Interest3¢$188.3M
  • Income tax1¢$60.0M

Out of $6.8B in revenue.9 The company lost money this year.

Where each dollar of operating cash went, fiscal 2025

  • Capital spending48¢$226.3M
  • Dividends paid19¢$91.6M
  • Share buybacks11¢$50.5M
  • Kept or used elsewhere22¢$105.8M

Out of $474.2M of cash from operations.9

Financial statements

Revenue101112139$6.8B in 2025+11% since 2019
0$2.5B$5.0B$7.5B$10.0B2019: $6.1B$6.1B20192020: $5.8B$5.8B2020−6%2021: $8.9B$8.9B2021+55%2022: $9.4B$9.4B2022+5%2023: $6.8B$6.8B2023−27%2024: $6.5B$6.5B2024−4%2025: $6.8B$6.8B2025+4%
Gross profit139$501.5M in 2025−77% since 2022
0$1.0B$2.0B$3.0B2022: $2.2B$2.2B20222023: $1.2B$1.2B2023−47%2024: $737.5M$737.5M2024−37%2025: $501.5M$501.5M2025−32%
Operating income101112139$5.3M in 2025−97% since 2019
-$1.0B0$1.0B$2.0B2019: $177.8M$177.8M20192020: -$746.7M-$746.7M20202021: $1.9B$1.9B20212022: $1.8B$1.8B2022−4%2023: $712.1M$712.1M2023−60%2024: $296.5M$296.5M2024−58%2025: $5.3M$5.3M2025−98%
Net income101112139-$101.1M in 2025+795% since 2019
-$1.0B0$1.0B$2.0B2019: -$11.3M-$11.3M20192020: -$969.9M-$969.9M2020+8483%2021: $1.3B$1.3B20212022: $1.3B$1.3B2022+2%2023: $452.0M$452.0M2023−66%2024: $105.0M$105.0M2024−77%2025: -$101.1M-$101.1M2025

Every line of the income statement as filed: the last 3 fiscal years, latest first.9

Period ending2025-12-312024-12-312023-12-31
Sales$6.8B$6.5B$6.8B
Cost of goods sold$6.3B$5.8B$5.7B
Selling and administrative$463.3M$408.5M$406.7M
Restructuring charges$33.4M$33.3M$89.6M
Other operating income$500.0K$800.0K$42.9M
Operating income$5.3M$296.5M$712.1M
Net Income (Loss) of non-consolidated affiliate-$3.1M$0$0
Interest expense-$188.3M-$184.5M-$181.1M
Interest income$4.4M$3.7M$4.3M
Non-operating pension income$20.6M$26.0M$24.0M
Income (loss) before taxes-$161.1M$141.7M$559.3M
Income tax (benefit) provision-$60.0M$36.7M$107.3M
Net (loss) income-$101.1M$105.0M$452.0M
Net loss attributable to noncontrolling interests-$600.0K-$3.6M-$8.2M
Net (loss) income attributable to Olin Corporation-$100.5M$108.6M$460.2M
Basic-$0.88$0.92$3.66
Diluted-$0.88$0.91$3.57
Basic114.6M shares117.8M shares125.9M shares
Diluted114.6M shares119.5M shares128.8M shares

Compare Olin Corporation with another company

Corporate structure

Olin Corporation sits at the top of its group. 33 entities, 21 countries on record. Switch between the flow chart and the network, and select any entity to see its details.

Major holders of Olin Corporation

  • Olin Corporation Saint Louis, Missouri, United States
    • Winchester Repeating Arms Company Subsidiary · New Haven
    • BC Switzerland GmbH Subsidiary · Switzerland
    • Blue Cube (Thailand) Company Limited Subsidiary · Thailand
    • Blue Cube Brasil Comércio de Produtos Químicos Ltda. (See footnote 3 for Subordinates) Subsidiary · Brazil
    • Blue Cube Chemicals (UK) Limited Subsidiary · United Kingdom
    • Blue Cube Chemicals (Zhangjiagang) Co., Ltd. Subsidiary · China
    • Blue Cube Chemicals (Zhangjiagang) Co., Ltd. Shanghai Branch Subsidiary · China
    • Blue Cube Chemicals Hong Kong Limited Subsidiary · Hong Kong
    • Blue Cube Chemicals India Private Limited Subsidiary · India
    • Blue Cube Chemicals Italy S.r.l. Subsidiary · Italy
    • Blue Cube Chemicals Singapore Pte. Ltd. Subsidiary · Singapore
    • Blue Cube Chemicals Singapore Pte. Ltd. Taiwan Branch Subsidiary · Taiwan
    • Blue Cube Denmark ApS Subsidiary · Denmark
    • Blue Cube Germany Assets GmbH & Co. KG Subsidiary · Germany
    • Blue Cube Germany Assets Management GmbH Subsidiary · Germany
    • Blue Cube Japan LLC Subsidiary · Japan
    • Blue Cube Mexico, S. de R.L. de C.V. Subsidiary · Mexico
    • Blue Cube Netherlands B.V. Subsidiary · Netherlands
    • Blue Cube Netherlands Holding C.V. Subsidiary · Netherlands
    • Blue Cube Rasha OOO Subsidiary · Russia
    • Blue Cube Turkey Kimyasal Ǜrűnler Limited Șirketi Subsidiary · Turkey
    • Blue Water Alliance Europe B.V. Subsidiary · Netherlands
    • Blue Water Alliance JV LLP Subsidiary · United Kingdom
    • BWA Japan Godo Kaisha Subsidiary · Japan
    • CANSO Chemicals Limited Subsidiary · Nova Scotia, Canada
    • and 7 more

Built from parent and subsidiary links from GLEIF, the Global Legal Entity Identifier Foundation (CC0); subsidiaries listed in Exhibit 21 of annual reports filed with the SEC; subsidiaries, stakes and holdings from Wikidata (CC0); major holders from Schedules 13D and 13G. Each entity in the chart links to its source.

What it owns

What Olin Corporation reports owning in its annual reports to the SEC: buildings, land and equipment, real estate and locations, investments, intangible assets and inventory, at the end of its latest fiscal year and a year before.

Property and equipment

ItemLatestA year beforeChange
Property and equipment, before depreciation$7.7B9 Dec 31, 2025$7.5B9 Dec 31, 2024+2.5%
Accumulated depreciation$5.5B9 Dec 31, 2025$5.2B9 Dec 31, 2024+6.2%
Property and equipment, net$2.2B9 Dec 31, 2025$2.3B9 Dec 31, 2024−5.6%
Operating-lease assets (leased space)$298.6M9 Dec 31, 2025$302.2M9 Dec 31, 2024−1.2%

Investments

ItemLatestA year beforeChange
Cash and cash equivalents$167.6M9 Dec 31, 2025$175.6M9 Dec 31, 2024−4.6%
Marketable securities, current$09 Dec 31, 2025$09 Dec 31, 2024

Intangibles and goodwill

ItemLatestA year beforeChange
Goodwill$1.4B9 Dec 31, 2025$1.4B9 Dec 31, 2024+0.3%
Intangible assets, net (excluding goodwill)$174.4M9 Dec 31, 2025$206.6M9 Dec 31, 2024−15.6%
Finite-lived intangibles, gross$544.1M9 Dec 31, 2025$768.8M9 Dec 31, 2024−29.2%
Accumulated amortization$369.7M9 Dec 31, 2025$562.2M9 Dec 31, 2024−34.2%
Finite-lived intangibles, net$174.4M9 Dec 31, 2025$206.6M9 Dec 31, 2024−15.6%

Inventory

ItemLatestA year beforeChange
Inventory, total$784.5M9 Dec 31, 2025$823.5M9 Dec 31, 2024−4.7%
Raw materials$204.7M9 Dec 31, 2025$185.2M9 Dec 31, 2024+10.5%
Work in process$178.1M9 Dec 31, 2025$173.1M9 Dec 31, 2024+2.9%
Finished goods$413.9M9 Dec 31, 2025$467.3M9 Dec 31, 2024−11.4%
Supplies$156.2M9 Dec 31, 2025$149.3M9 Dec 31, 2024+4.6%

Properties, in its own words

Information concerning our principal locations from which our products and services are manufactured, distributed or marketed are included in the tables set forth under the caption “Products, Services and Strategies” contained in Item 1—“Business.” Generally, these facilities are well maintained, in good operating condition, and suitable and adequate for their use. Our two largest facilities are co-located with a site partner. The land on which these facilities are located is leased with a 99-year initial term that commenced in 2015. Additionally, we lease warehouses, terminals and distribution offices and space for executive and branch sales offices and service departments. We believe our current facilities are adequate to meet the requirements of our present operations.

On October 1, 2020, Winchester assumed full management and operational control of the Lake City Army Ammunition Plant in Independence, MO, which is a government-owned, contractor-operated facility. The contract is for the production of small caliber military ammunition, including 5.56mm, 7.62mm, and .50 caliber rounds, as well as certain cartridges and casings. The contract also allows for the production of certain ammunition for commercial customers. The contract has an initial term of seven years and has been extended by the U.S. Army for three additional years.

Item 2 of the 10-K filed Feb 20, 2026.19

The story

Founded by Franklin W. Olin in 1892.1

Founding and expansion (1890s–1900s)

The company was started by Franklin Walter Olin in Niagara Falls, New York as the Equitable Powder Company. Olin created the company for the purpose of supplying the area's coal mines and limestone quarries with explosives. Olin's blasting and gunpowder company expanded into the production of cartridges in 1898. The company bought a paper manufacturer (the Ecusta Paper Company in Pisgah Forest, North Carolina), a lead shot facility, an explosive primer facility, a cartridge brass manufacturing facility, and a fiber wad facility. The company also started its own brass mill. Franklin Olin, along with his two sons John and Spencer, merged these companies together to form the Western Cartridge Company in direct competition with Remington and Winchester. For a time, his competitors were able to get their suppliers to shut off sources of raw materials in an attempt to drive Olin out of business and, in order to survive, Olin was forced to diversify the activities of the company. With the advent of World War I, the Olins made a fortune supplying ammunition through Western Cartridge. In 1931, Western bought Winchester and in 1935 merged the two, forming Winchester-Western.

In 1944, the various Olin companies were organized under a new corporate parent, Olin Industries, Inc. At the time, Olin Industries and its subsidiary companies ran the St. Louis Arsenal and contributed to the war effort with manufacturing roles at the Badger Army Ammunition and Lake City Army Ammunition Plants. Olin's plants in New Haven, Connecticut and East Alton, Illinois employed about 17,000 workers each producing the guns and small-caliber ammunition needed during World War II. The war production helped the Olins to become one of the wealthiest American families of the time.

In 1952, Olin opened a chlorine plant in McIntosh, Alabama. The production process at this facility originally involved mercury, which contaminated the groundwater.

Mathieson Chemical acquisition

After the war, the Olins acquired the Mathieson Chemical Corporation—also founded in 1892. Long before its association with Olin, Mathieson Alkali Works began business in Saltville, Virginia, and a year later acquired its neighbor, the Holston Salt and Plaster Corp. Saltville became a quintessential company town, where they produced chlorine and caustic soda, and in the process leached methylmercury (by the company's own estimates, up to 100 pounds per day) into the soils and the North fork of the Holston River. The site was declared a Superfund site in 1982.

In 1952, Mathieson Chemical Company, as it was known by then, acquired controlling interest in the pharmaceutical firm of E. R. Squibb and Sons (now part of Bristol-Myers Squibb). Afterward, the corporation diversified its interests into a wide variety of businesses, including plastics, cellophane, bauxite mining, automotive specialties, powder actuated nailing tools, and home construction. The Olin Ski Company manufactured camping and skiing gear. By 1988, however, Olin skis were produced under license by K2 Sports.

Olin Industries and Mathieson Chemical merged in 1954 to form the Olin Mathieson Chemical Corporation. The new company had 35,000 employees, 46 domestic and 17 foreign plants. The company manufactured phenoxy herbicides and anti-crop agents for Fort Detrick under contract to the U.S. Army Chemical Corps. The company also manufactured electric batteries, marketing them for use in flashlights. John Olin retired in 1963. The following year, the company brought in hardware-experienced executives to run Winchester. The new management team introduced cheap, stamped metal parts into the Winchester line, which eventually damaged the quality reputation Winchester had previously enjoyed.

1924 "Muck Dam Collapse"

Nearly 30 years prior to Olin acquiring Mathieson Chemical, a muck dam collapsed, sending a 30-foot wall of water, mud, mercury, and alkali down the Holston River valley into the company town of Palmertown, a community of Saltville, Virginia. Bodies, homes, and cars were washed as far as seven miles down the valley. In the aftermath of the flood, 19 people had died.

Corporate reduction (1969–2010)

The company became Olin Corporation in 1969 and subsequently began selling off many of its acquired businesses. Since then, Olin Corporation has been shrinking (except for a brief expansion in the early 1980s).

Read the full text

Olin was the first U.S. corporation to be prosecuted for violations of the arms embargo, and in 1978 was convicted for selling Winchester rifles to private dealers in South Africa. When charged, the Winchester Division affirmed in a legal brief that:

... the Winchester employees principally responsible for dealing with the State Department on export license matters over the years developed the belief that the Department was "winking" at the representation [by the company] that arms sent to South Africa were said to be destined for other countries.

After ongoing declines in its business at Winchester, on December 12, 1980, Olin made the decision to sell Winchester firearms to the firm's employees under the name US Repeating Arms Company. Olin, however, kept the Winchester brand name and licensed it to US Repeating Arms Company. Olin sold its European Winchester ammunition business, and also licensed the Winchester brand name, to GIAT (of Versailles, France). Olin transferred its ball propellant manufacturing plant to General Dynamics subsidiary St. Marks Powder in 1998. Olin spun off its specialty chemicals business on February 8, 1999, as Arch Chemicals, Inc. Olin afterwards focused more on its ammunition, brass and chlor-alkali businesses.

The ammunition business was strengthened by the Iraq and Afghanistan wars. After 2004, the Olin Corporation moved some manufacturing of its Winchester products from East Alton to Oxford, Mississippi, which started with the rimfire cartridge (.22LR) production, then its load and pack operations. After Olin moved production of its Winchester rimfire ammunition production to Mississippi in 2004, in 2006, Olin announced that it had entered into a new license agreement with Browning Arms Company to market Winchester brand rifles and shotguns. The new Winchester company was named U.S. Repeating Arms as a licensee of Olin Corporation, which still owned Winchester ammunition. In May 2007, Olin agreed to buy Pioneer Co. Inc., a chlor-alkali products maker, for $414 million. Olin announced the sale of its brass division in October 2007 to Global Brass and Copper, an affiliate of KPS Capital Partners, for $400 million. The sale included all of Olin's worldwide metals operations, including the A.J. Oster metals service centers. It sold a plant in East Alton in 2007, and moved production of centerfire ammunition to Oxford, Mississippi in 2010 from East Alton.

The McIntosh chlorine plant began using asbestos, a potent carcinogen, in 1978. The chemical was not safely contained, and employees regularly breathed it in and were not given protective equipment. The company was aware of the hazard and told workers that they could stay safe by preventing the material from becoming airborne. OSHA gave the company advance notice of its inspections, for which they regularly cleaned up the asbestos. The 2007 merger between Pioneer and Olin created the third-largest chlorine producer in the United States. In 2010, an equipment failure at the McIntosh plant released caustic soda into the atmosphere, and the plant frequently releases chlorine into the atmosphere. Residents have complained that they were not adequately informed of the leaks.

Spinoffs and joint ventures (2015–2022)

On March 27, 2015, Dow Chemical Company announced that it would spin off its chlorine and epoxy businesses and merge them with Olin Corporation. Dow earned around $5 billion in the deal including $2 billion in cash, with the new Olin to have revenue of around $7 billion, with Olin chairman and CEO Joseph D. Rupp to lead the new larger company. Separately, Dow also agreed to supply Olin with ethylene. On October 5, 2015, Olin successfully acquired Dow's U.S. Gulf Coast Chlor-Alkali and Vinyl, Global Chlorinated Organics, and Global Epoxy business units, in addition to 100 percent interest in the Dow Mitsui Chlor-Alkali joint venture. As of 2016, Olin president and CEO was John E. Fischer.

In 2016, an Olin Corp. facility on Dow Chemical property in Plaquemine near Baton Rouge had a chlorine leak which led to the evacuation of the Dow plant. In 2016, Olin Corp, which was still based in Missouri, announced it was laying off 100 workers, or around 80% of the facility's workforce, at a factory north of downtown Henderson, also halting chlorine production at the site. It also stopped production of lye, with the facility to be remade into a bleach factory and distribution center for various industrial chemicals. Olin also scaled back chlorine production at other factories in New York and Texas. In 2019, Olin announced it was closing two plants in Texas by the end of 2020. It was reported in 2020 that Sachem Head Capital Management had built a stake in Olin Corporation at 9.4%. At that time, Olin remained headquartered in Clayton, Missouri and had 12 directors on its board. In 2020, Scott M. Sutton was selected by the Olin board to succeed Fischer as CEO and president, with Fischer becoming executive chairman.

As of 2021, the Olin Chemical Superfund Site was still undergoing cleanup under Olin Corporation, with the EPA having managed the site 2006, and the 53-acre facility purchased by Olin in 1980. The EPA was overseeing the cleanup of a Olin Corp. facility in East Alton by 2021, taking public comments on Olin's proposed cleanup plan to contaminated soil and groundwater in July 2021. In 2021, Olin shut down half of its diaphragm-grade chlor alkali production at its facility in McIntosh, Alabama.

In 2022, Olin created a joint venture with Plug Power Inc., to produce 15 tons of "green" hydrogen per day at a plant in Louisiana, to be operational by 2023 according to the company. In 2022, it had seven production facilities in the United States and Canada dedicated to chlorine and caustic soda. The former Olin Corporation headquarters in East Alton, after being purchased by the Wieland Group, were razed in 2022. The structure had previously employed 1,800 people when Olin had used it as an ammunition production facility.

From Wikipedia’s article on Olin Corporation, shared under CC BY-SA 4.0.7

Leadership

Who has led Olin Corporation, and when. Pick a name to see everywhere that person has worked.

Board members and other officers (65)

Products and brands

  • copper-based alloy

Listed on Wikidata.1

As a producer of ammunition and industrial chemicals, in 2022, the Olin Corporation had three overall business segments: "Chlor-Alkali Products and Vinyls, Epoxy (epoxy materials and precursors), and Winchester (arms and ammunition)." The company produces chemicals such as chlorine, caustic soda, and hydrogen through a process involving the electrolysis of salt. The chemical branches of the business also produce vinyls, epoxies, chlorinated organics, bleach, and hydrochloric acid.

From Wikipedia’s article on Olin Corporation, shared under CC BY-SA 4.0.7

Subsidiaries and ownership

Subsidiaries

Subsidiaries (Exhibit 21)

  • BC Switzerland GmbH Switzerland8
  • BWA Japan Godo Kaisha Japan8
  • Blue Cube (Thailand) Company Limited Thailand8
  • Blue Cube Brasil Comércio de Produtos Químicos Ltda. (See footnote 3 for Subordinates) Brazil8
  • Blue Cube Chemicals (UK) Limited United Kingdom8
  • Blue Cube Chemicals (Zhangjiagang) Co., Ltd. China8
  • Blue Cube Chemicals (Zhangjiagang) Co., Ltd. Shanghai Branch China8
  • Blue Cube Chemicals Hong Kong Limited Hong Kong8
  • Blue Cube Chemicals India Private Limited India8
  • Blue Cube Chemicals Italy S.r.l. Italy8
  • Blue Cube Chemicals Singapore Pte. Ltd. Singapore8
  • Blue Cube Chemicals Singapore Pte. Ltd. Taiwan Branch Taiwan8
  • Blue Cube Denmark ApS Denmark8
  • Blue Cube Germany Assets GmbH & Co. KG Germany8
  • Blue Cube Germany Assets Management GmbH Germany8
  • Blue Cube Japan LLC Japan8
  • Blue Cube Mexico, S. de R.L. de C.V. Mexico8
  • Blue Cube Netherlands B.V. Netherlands8
  • Blue Cube Netherlands Holding C.V. Netherlands8
  • Blue Cube Rasha OOO Russia8
  • Blue Cube Turkey Kimyasal Ǜrűnler Limited Șirketi Turkey8
  • Blue Water Alliance Europe B.V. Netherlands8
  • Blue Water Alliance JV LLP United Kingdom8
  • CANSO Chemicals Limited Nova Scotia, Canada8
All 31 listed subsidiaries
  • Nedastra Holding B.V. Netherlands8
  • Olin Canada ULC Nova Scotia, Canada8
  • Olin Germany AP LTP GmbH Germany8
  • Olin Germany Upstream GmbH & Co KG Germany8
  • Olin International Holdings Limited United Kingdom8
  • Olin Malta Holdings Limited Malta8
  • Winchester Australia Limited Australia8

From Wikidata.1 The subsidiaries the company lists in Exhibit 21 of its annual report, as filed.

Acquisitions

  1. Succeeded Mathieson Chemical Corporation1

Timeline

  1. Aug 25, 20268-K Shareholder vote; Regulation FD disclosure103
  2. Aug 18, 20268-K Other events104
  3. Aug 11, 20268-K Regulation FD disclosure105
  4. Jul 30, 20268-K Results of operations106
  5. Jun 16, 20268-K Regulation FD disclosure107
  6. Jun 16, 20268-K Entered a material agreement; Other events108
  7. May 21, 20268-K Shareholder vote109
  8. May 7, 20268-K Results of operations110
  9. Apr 30, 20268-K Executive or director change; Bylaws or fiscal year changed; Shareholder vote111
  10. Feb 19, 20268-K Regulation FD disclosure112
  11. Feb 12, 20268-K Regulation FD disclosure113
  12. Jan 29, 20268-K Results of operations114
  13. Mar 18, 2024New chief executive Kenneth Todd Lane becomes CEO20
  14. Feb 17, 2021New chief executive Scott McDougald Sutton becomes CEO21
  15. Aug 19, 2016New chief executive John E. Fischer becomes CEO22
  16. Aug 2, 2004New chief executive Anthony W. Ruggiero becomes CEO24
  17. Feb 17, 2004New chief executive Joe Rupp becomes CEO23
  18. Jan 2, 1990Went public Listed on NYSE1
  19. 1892Founded Founded1

Calendar

Coming up

  1. Oct 29, 2026 · After the closeReports results for the quarter ending Sep/2026 A year earlier it reported $0.40 a share, on Oct 27, 2025.115

When it reported results

  1. Jul 30, 2026Reported quarterly or annual results106
  2. May 7, 2026Reported quarterly or annual results110
  3. Jan 29, 2026Reported quarterly or annual results114
  4. Jan 8, 2026Reported quarterly or annual results116
  5. Oct 27, 2025Reported quarterly or annual results117
  6. Jul 28, 2025Reported quarterly or annual results118
  7. May 1, 2025Reported quarterly or annual results119
  8. Jan 30, 2025Reported quarterly or annual results120

Upcoming dates from Nasdaq's calendar; past results from the company's 8-K filings (Item 2.02). The full markets calendar

Filings

400 filings to the SEC since October 2021: 5 annual reports, 15 quarterly reports, 81 major events, 202 insider forms, 32 large holders, 65 other. The latest 20:

  1. Aug 25, 20268-K EDGAR
  2. Aug 18, 20268-K EDGAR
  3. Aug 13, 2026SCHEDULE 13G EDGAR
  4. Aug 12, 2026S-8 EDGAR
  5. Aug 11, 20268-K FORM 8-K DIVIDEND DECLARATION EDGAR
  6. Jul 31, 202610-Q EDGAR
  7. Jul 30, 20268-K EDGAR
  8. Jul 14, 2026SCHEDULE 13G EDGAR
  9. Jul 13, 2026EFFECT EDGAR
  10. Jul 13, 2026424B3 EDGAR
  11. Jul 10, 2026S-4/A EDGAR
  12. Jul 2, 2026S-4 EDGAR
  13. Jun 24, 202611-K EDGAR
  14. Jun 18, 20264 EDGAR
  15. Jun 16, 2026425 EDGAR
  16. Jun 16, 20268-K EDGAR
  17. Jun 16, 2026425 EDGAR
  18. Jun 16, 20268-K EDGAR
  19. Jun 3, 20264 EDGAR
  20. May 29, 2026SD EDGAR

The 400 filings since October 2021 can be filtered by form type and year here when JavaScript is on.

Every filing from the last five years, summarized. The full record is on SEC EDGAR.

Insider trades

43 open-market trades by officers, directors and large owners since October 2021: 3 buys and 40 sales. Grants, option exercises and gifts are left out.

DateWhoTradeSharesPriceValueFiling
Feb 25, 2026Carter DeonVP & President CAPVSale6,500$23.73$154.2KForm 4
Feb 24, 2026Castle Angela MVP & Chief Legal OfficerSale2,379$24.25$57.7KForm 4
Feb 3, 2026Sumner R NicholeVP & ControllerSale4,750$22.49$106.8KForm 4
Feb 3, 2026Slater Todd AVP & CFOSale92,250$22.48$2.1MForm 4
Nov 26, 2025VERMILLION TERESA MVP & TreasurerSale4,500$20.86$93.8KForm 4
Aug 13, 2025VERMILLION TERESA MVP & TreasurerSale6,000$21.11$126.6KForm 4
Aug 6, 2025Ehrhardt MarcVP & Pres Corp DevelopmentBuy20,000$18.70$374.0KForm 4
Feb 4, 2025Lane Kenneth ToddPresident & CEOBuy7,250$28.06$203.4KForm 4
Nov 8, 2024Sumner R NicholeVP & ControllerSale10,500$43.75$459.4KForm 4
Feb 27, 2024Sutton Scott McDougaldPresident & CEOSale48,896$52.39$2.6MForm 4
Feb 27, 2024FLAUGHER BRETT AVP & Pres, WinchesterSale10,000$52.20$522.0KForm 4
Feb 26, 2024Sutton Scott McDougaldPresident & CEOSale16,924$52.56$889.6KForm 4
Feb 26, 2024FLAUGHER BRETT AVP & Pres, WinchesterSale15,000$52.46$786.9KForm 4
Feb 23, 2024Sutton Scott McDougaldPresident & CEOSale21,946$52.58$1.2MForm 4
Feb 23, 2024Sutton Scott McDougaldPresident & CEOSale21,946$52.58$1.2MForm 4
Feb 22, 2024Sutton Scott McDougaldPresident & CEOSale15,000$52.50$787.6KForm 4
Feb 22, 2024Sutton Scott McDougaldPresident & CEOSale15,000$52.50$787.6KForm 4
Feb 1, 2024PETERS VALERIE AVP, HRSale9,735$52.13$507.5KForm 4
Jan 31, 2024Gumpel DamianVP Corp StrategySale9,238$53.20$491.5KForm 4
Jan 31, 2024Sutton Scott McDougaldPresident & CEOSale45,537$53.44$2.4MForm 4

All 43 trades can be filtered by person here when JavaScript is on.

From Forms 4 filed with the SEC.

Major holders

Investors who own more than 5% of the shares must tell the SEC: a 13D if they may seek to influence the company, a 13G if they hold passively.

Executive pay

What the company paid its top executives, from the summary compensation table in its proxy statement. Total pay includes salary, bonus, stock and option awards and other pay, as the company valued them.

YearExecutiveAgeSalaryTotal pay
2025Kenneth T. LanePresident and CEO$1.1M$9.8M130
2025Todd A. SlaterSenior Vice President and CFO$740.0K$3.6M130
2025Florian J. KohlVice President and President, Epoxy & International$625.0K$2.9M130
2025Brett A. FlaugherVice President and President, Winchester$680.0K$2.8M130
2025Deon A. CarterVice President and President, Chlor Alkali Products and Vinyls$680.0K$2.6M130
2024Kenneth T. LanePresident and CEO$870.8K$20.4M130
2024Todd A. SlaterSenior Vice President and CFO$720.0K$2.8M130
2024Brett A. FlaugherVice President and President, Winchester$660.0K$2.5M130
2024Florian J. KohlVice President and President, Epoxy & International$579.2K$1.9M130
2023Todd A. SlaterSenior Vice President and CFO$680.0K$2.9M130

Held by these funds

The largest holders among investment managers' 13F reports for the quarter ending Jun 30, 2026, the top 25 of 100. Change is in shares since the quarter before.

FundSharesValueShare of the fundChange
Hotchkis & Wiley Capital Management LLC16,021,214$317.5M0.9%+936,990
BlackRock, Inc.11,984,254$237.5M0.0%+497,398
Dimensional Fund Advisors LP6,166,477$122.2M0.0%+538,480
Aqr Capital Management LLC5,510,335$109.2M0.0%+4,344,109
Vanguard Portfolio Management LLC5,447,478$108.0M0.0%+8,071
Vanguard Capital Management LLC5,138,572$101.8M0.0%+99,604
State Street Corp4,799,788$95.1M0.0%−230
Fuller & Thaler Asset Management, Inc.4,301,590$85.3M0.2%−714,287
Yacktman Asset Management LP4,209,403$83.4M1.0%+117,192
Pzena Investment Management LLC3,890,204$77.1M0.2%−541,409
Goldman Sachs Group Inc2,550,105$50.5M0.0%−286,078
Citadel Advisors LLC2,233,816$44.3M0.0%+593,302
Semper Augustus Investments Group LLC2,153,826$42.7M4.8%+124,507
Geode Capital Management, LLC2,107,148$41.8M0.0%−4,428
Charles Schwab Investment Management Inc1,543,162$30.6M0.0%−14,020
Morgan Stanley1,384,610$27.4M0.0%−267,057
Captrust Financial Advisors1,321,951$26.2M0.0%+1,301,343
Bank Of America Corp /de/1,284,002$25.4M0.0%−490,007
Bank of New York Mellon Corp1,200,056$23.8M0.0%−32,856
Jpmorgan Chase & Co976,669$20.4M0.0%+726,436
Northern Trust Corp1,004,672$19.9M0.0%+15,416
Allianz Asset Management GmbH972,709$19.3M0.0%+501,844
Invesco Ltd.779,328$15.4M0.0%−16,626
Victory Capital Management Inc773,430$15.3M0.0%−8,727
Bridgeway Capital Management, LLC744,606$14.8M0.3%+79,763

13F reports cover disclosed long positions in U.S. stocks only.

Members of Congress who traded it

1 trades disclosed by members of Congress. “Vs S&P since” is the stock’s change since the trade minus the S&P 500’s.

DateMemberTradeAmountVs S&P sinceFiling
Sep 14, 2026Lisa C. McClainRepublican, HouseBuy$15,001 - $50,000−9.3%Report

Members report amounts as ranges, not exact figures. Returns are price-only (no dividends).

SEC filer profile

How Olin Corporation is registered with the Securities and Exchange Commission, from its EDGAR record and the cover page of its latest annual report.

  • Name on EDGAROLIN Corp2
  • CIK0000074303
  • Employer ID (EIN)13-187231919
  • Filer statusLarge accelerated filer not an emerging growth company; not a smaller reporting company; not a shell company19
  • Incorporated inVirginia19
  • Fiscal year endsDecember 312
  • Industry code (SIC)2800 Chemicals & Allied Products2
  • SEC reviewing officeOffice of Industrial Applications and Services, Division of Corporation Finance2
  • Business addressOlin Corporation, 190 Carondelet Plaza Suite 1530, Clayton, MO 631052
  • Phone31448014002
  • Shares outstanding113,982,490 as of Jun 30, 202615
  • Public float$2.3B as of Jun 30, 202519
  • AuditorKPMG LLP, St. Louis, MO PCAOB ID 185; it also attests to the company’s internal control over financial reporting19
  • On EDGAR sinceJan 10, 19942
  • Filings2,635 in all: 4 (1,301), 8-K (515), SC 13G/A (114), 10-Q (98), 4/A (68), 3 (51), SC 13G (50), 144 (43)2
    All 53 form types

    425 (42), DEF 14A (33), S-8 (33), 10-K (29), 11-K (26), UPLOAD (19), DEFA14A (18), CORRESP (17), 8-K/A (15), ARS (15), S-8 POS (13), SC 13D/A (13), SD (13), 424B5 (11), S-4/A (11), SCHEDULE 13G/A (7), 424B3 (6), S-3ASR (6), 424B2 (5), EFFECT (5), FWP (5), S-4 (5), 10-K405 (4), S-3 (4), SC 13D (4), SCHEDULE 13G (4), POS AM (3), PRE 14A (3), PRER14A (3), S-3/A (3), 10-K/A (2), 25 (2), 3/A (2), DEFR14A (2), DFAN14A (2), 10-Q/A (1), 11-K/A (1), 25-NSE (1), 8-A12B (1), AW (1), DEFM14A (1), POSASR (1), PREM14A (1), RW (1), RW WD (1)

  • Latest filingsAnnual report (10-K) Feb 20, 2026
    Quarterly report (10-Q) Jul 31, 2026
    Proxy statement (DEF 14A) Mar 20, 2026
    Latest 8-K (8-K) Aug 25, 2026

Securities registered for trading

ClassSymbolExchange
Common Stock, $1.00 par value per shareOLNNew York Stock Exchange

From the cover page of the 10-K filed Feb 20, 2026 (Section 12(b) of the Exchange Act).19

Risk factors and legal proceedings

The risks Olin Corporation names in Item 1A of its 10-K filed Feb 20, 2026: 24 risks under these headings, as written.19

  • Business, Industry and Operational Risks
  • Sensitivity to Global Economic Conditions—Our operating results could be negatively affected during economic and industry downturns.
  • Cyclical Pricing Pressure—Our profitability could be reduced by declines in average selling prices of our products.
  • Operating Model—Our operating results could be negatively affected if we do not successfully execute our operating model in our chemicals businesses.
  • Cost Control—Our profitability could be reduced if we experience increasing raw material, utility, transportation or logistics costs, or if we fail to achieve targeted cost reductions.
  • Raw Materials—Availability of purchased feedstocks and energy, and the volatility of these costs, affect our operating costs and add variability to earnings.
  • Suppliers—We rely on a limited number of third-party suppliers for specified feedstocks and services.
  • Production Hazards—Our facilities are subject to operating hazards, which may disrupt our business.
  • Physical Risk of Climate-Related Events—Our facilities are subject to physical risks associated with climate-related events or increased severity and frequency of severe weather events.
  • Third-Party Transportation—We rely heavily on third-party transportation, which subjects us to risks and costs that we cannot control.
  • Information Security—A failure of our information technology systems, or an interruption in their operation due to internal or external factors, including cyber-attacks, could have a material adverse effect on our business.
  • International Sales and Operations—We are subject to risks associated with our international sales and operations that could have a material adverse effect on our business.
The other 13 risks
  • Credit Facility—Adverse industry or business conditions impacting our profitability could affect our ability to comply with the covenants and restrictions in our debt agreements.
  • Indebtedness—Our indebtedness could materially adversely affect our business.
  • Labor Matters—We cannot assure you that we can conclude future labor contracts or any other labor agreements without work stoppages.
  • Ability to Attract and Retain Qualified Employees—We must attract, retain and motivate key employees, and the failure to do so may materially adversely affect our business.
  • Credit and Capital Market Conditions—Adverse conditions in the credit and capital markets may limit or prevent our ability to borrow or raise capital.
  • Acquisitions and Joint Ventures—We may not be able to complete future acquisitions or joint venture transactions or successfully integrate them into our business, which could materially adversely affect our business.
  • Pension Plans—The impact of declines in global equity and fixed income markets on asset values and any declines in interest rates and/or improvements in mortality assumptions used to value the liabilities in our pension plans may result in higher pension costs and the need to fund the pension plans in future years in material amounts.
  • Asset Impairment—If our goodwill, other intangible assets or property, plant and equipment become impaired in the future, we may be required to record non-cash charges to earnings, which could be significant.
  • Legal, Environmental and Regulatory Risks
  • Effects of Regulation—Changes in or failure to comply with applicable laws or government regulations or policies could have a material adverse effect on our business.
  • Security and Chemicals Transportation—New regulations on the transportation of hazardous chemicals and/or the security of chemical manufacturing facilities and public policy changes related to transportation safety could result in significantly higher operating costs.
  • Legal and Regulatory Claims and Proceedings—We are subject to legal and regulatory claims and proceedings, which could cause us to incur significant expenses.
  • Environmental Costs—We have ongoing environmental costs, which could have a material adverse effect on our business.
  • Governmental Contract Compliance and Deliverables—Various risks associated with our Lake City contract and performance under other government contracts could materially adversely affect our business.

Legal proceedings

Discussion of legal matters is incorporated by reference from Part II, Item 8—“Financial Statements and Supplementary Data,” under the heading “Legal Matters” within Note 22, “Commitments and Contingencies,” of the notes to consolidated financial statements and should be considered an integral part of Part I, Item 3, “Legal Proceedings.”

The opening of Item 3, Legal Proceedings.19

Sources

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