Olin Ownership | Who Owns Olin?


OverviewForecastRevenueFinancialsChartTranscripts

Olin Ownership Summary


Olin is owned by 38.41% institutional investors, 0.47% insiders, and 61.12% retail investors. Hotchkis & wiley capital management is the largest institutional shareholder, holding 11.03% of OLN shares. FullerThaler Behavioral Small-Cap Value is the top mutual fund, with 4.80% of its assets in Olin shares.

OLN Ownership Benchmark


TypeName% Inst% Insiders% Retail
StockOlin38.41%0.47%61.12%
SectorBasic Materials Stocks 36.61%12.69%50.70%

Institutional Shareholders


Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Hotchkis & wiley capital management12.69M11.03%$317.14M
Blackrock funding, inc. /de12.57M10.92%$314.07M
Vanguard group11.56M10.05%$288.99M
Blackrock11.66M9.72%$549.75M
Fuller & thaler asset management6.46M5.62%$161.54M
State street4.82M4.18%$120.33M
Dimensional fund advisors lp4.45M3.87%$111.23M
Yacktman asset management lp3.97M3.45%$99.31M
Pzena investment management3.84M3.33%$95.88M
Geode capital management2.22M1.93%$55.57M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Semper augustus investments group1.92M6.00%$48.09M
Grizzlyrock capital303.00K5.88%$7.57M
Thomist capital management, lp623.39K3.01%$15.24M
Coombe, bender96.66K2.68%$4.56M
Soapstone management150.00K2.54%$3.75M
Amitell capital pte154.73K2.36%$3.87M
Impala asset management120.00K2.03%$3.00M
Yacktman asset management lp3.97M1.37%$99.31M
V. m. manning49.21K1.06%$1.16M
Hotchkis & wiley capital management12.69M0.98%$317.14M

Top Buyers

HolderShares% AssetsChange
Norges bank1.42M0.01%1.42M
Semper augustus investments group1.92M6.00%1.13M
Amundi941.70K0.01%941.70K
Arrowstreet capital, limited partnership958.13K0.02%722.00K
Orbis allan gray693.17K0.07%693.17K

Top Sellers

HolderShares% AssetsChange
Boston partners---3.79M
Ilex capital partners (uk) llp24.09K0.02%-2.49M
Fmr1.36M0.00%-1.75M
Millennium management2.14M0.03%-1.06M
Allspring global investments---984.74K

New Positions

HolderShares% AssetsChangeValue
Norges bank1.42M0.01%1.42M$47.89M
Orbis allan gray693.17K0.07%693.17K$17.32M
Masters capital management550.00K0.50%550.00K$13.74M
Steadfast capital management lp444.00K0.19%444.00K$11.10M
Grizzlyrock capital303.00K5.88%303.00K$7.57M

Sold Out

HolderChange
Harbor investment advisory-1.00
Evermay wealth management-1.00
Tfo-tdc-7.00
Quaker wealth management-7.00
Financial gravity asset management-9.00

Institutional Ownership Trends


DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Sep 30, 2025191-46.94%44,209,524-55.84%380.51%81-55.49%67-42.24%
Jun 30, 2025368-1.60%102,549,7253.75%891.21%187-9.66%11617.17%
Mar 31, 20258-98.01%3,053,987-97.06%20.03%2-98.88%3-97.83%
Dec 31, 2024369-11.93%94,254,929-6.84%801.08%1603.23%128-25.58%
Sep 30, 2024412-9.65%100,995,122-3.48%861.13%152-28.30%1688.39%

Top Mutual Funds Shareholders


HolderShares% HoldingChange
FullerThaler Behavioral Small-Cap Value5.51M4.80%-2.61K
Undiscovered Managers Behavioral Val L5.28M4.61%-10.91K
Vanguard Windsor™ II Inv4.58M3.99%-
iShares Core S&P Mid-Cap ETF3.75M3.27%-
Vanguard US Total Market Shares ETF3.70M3.21%-113.48K
Vanguard Total Stock Mkt Idx Inv3.66M3.19%-77.76K
Vanguard Small Cap Index2.80M2.44%-12.91K
Pacer US Cash Cows 100 ETF2.80M2.43%4.13K
AMG Yacktman I2.21M1.92%-
JHancock Disciplined Value Mid Cap I2.05M1.78%-688.92K

Recent Insider Transactions


DateNameRoleActivityValue
Nov 26, 2025VERMILLION TERESA M VP & TreasurerSell$93.85K
Aug 13, 2025VERMILLION TERESA M VP & TreasurerSell$126.64K
Aug 06, 2025Ehrhardt Marc VP & Pres Corp DevelopmentBuy$373.96K
Feb 04, 2025Lane Kenneth Todd President & CEOBuy$203.45K
Nov 08, 2024Sumner R Nichole VP & ControllerSell$459.41K

Insider Transactions Trends


DateBuySell
2027 Q1--
2024 Q2--
2024 Q1-43
2023 Q4--
2023 Q3-4

OLN Ownership FAQ


Who owns the most shares of Olin?

Olin’s largest shareholders are Hotchkis & wiley capital management (12.69M shares, 11.03%), Blackrock funding, inc. /de (12.57M shares, 10.92%), and Vanguard group (11.56M shares, 10.05%). Together, they hold 31.99% of Olin’s total shares outstanding.

Does Blackrock own Olin?

Yes, BlackRock owns 9.72% of Olin, totaling 11.66M shares as of Jun 2024. This represents 0.01% of BlackRock's total assets, with a market value of 549.75M$. In the last quarter, BlackRock decreased its holdings by -116K shares, a -0.99% change.

Who is Olin’s biggest shareholder by percentage of total assets invested?

Semper augustus investments group is Olin’s biggest shareholder by percentage of total assets invested, with 6.00% of its assets in 1.92M Olin shares, valued at 48.09M$.

Who is the top mutual fund holder of Olin shares?

FullerThaler Behavioral Small-Cap Value is the top mutual fund holder of Olin shares, with 4.80% of its total shares outstanding invested in 5.51M Olin shares.

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