Olin Ownership | Who Owns Olin?


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Olin Ownership Summary


Olin is owned by 101.07% institutional investors, 0.39% insiders. Hotchkis & wiley capital management is the largest institutional shareholder, holding 14.08% of OLN shares. Vanguard Windsor II Inv is the top mutual fund, with 4.39% of its assets in Olin shares.

OLN Ownership Benchmark


TypeName% Inst% Insiders% Retail
StockOlin101.07%0.39%-1.46%
SectorBasic Materials Stocks 58.82%12.62%28.56%

Institutional Shareholders


Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Hotchkis & wiley capital management16.02M14.08%$317.54M
Blackrock funding, inc. /de11.98M10.53%$237.53M
Vanguard group11.34M9.89%$236.17M
Blackrock11.66M9.72%$549.75M
Dimensional fund advisors lp6.17M5.42%$122.23M
Aqr capital management5.51M4.84%$109.21M
Vanguard capital management5.14M4.52%$101.85M
State street4.80M4.22%$95.13M
Fuller & thaler asset management4.30M3.78%$85.26M
Yacktman asset management lp4.21M3.70%$83.43M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Grizzlyrock capital395.09K5.48%$7.83M
Semper augustus investments group2.15M4.83%$42.69M
Coombe, bender96.66K2.68%$4.56M
Corvid peak capital management100.00K1.22%$1.98M
Yacktman asset management lp4.21M1.03%$83.43M
Walnut level capital40.00K1.01%$1.19M
Hotchkis & wiley capital management16.02M0.93%$317.54M
V. m. manning50.08K0.85%$992.57K
Appian way asset management lp171.67K0.77%$4.29M
Klcm advisors448.28K0.70%$8.88M

Top Buyers

HolderShares% AssetsChange
Aqr capital management5.51M0.04%4.34M
Sixth street partners management company1.54M0.00%1.54M
Norges bank1.42M0.01%1.42M
Captrust financial advisors1.32M0.04%1.30M
Hotchkis & wiley capital management16.02M0.93%936.99K

Top Sellers

HolderShares% AssetsChange
Orbis allan gray---3.80M
Ilex capital partners (uk) llp24.09K0.02%-2.49M
Allspring global investments---984.74K
Millennium management81.12K0.00%-984.37K
Thompson siegel & walmsley---862.40K

New Positions

HolderShares% AssetsChangeValue
Sixth street partners management company1.54M0.00%1.54M$30.59M
Norges bank1.42M0.01%1.42M$47.89M
Masters capital management550.00K0.50%550.00K$13.74M
Steadfast capital management lp444.00K0.19%444.00K$11.10M
Renaissance283.50K0.01%283.50K$5.62M

Sold Out

HolderChange
Evermay wealth management-1.00
Harbor investment advisory-1.00
Valued wealth advisors-1.00
Curio wealth-3.00
Private wealth asset management-4.00

Institutional Ownership Trends


DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Jun 30, 2026424-4.29%115,023,2172.23%1011.04%213-18.08%12440.91%
Mar 31, 20264288.08%109,122,0662.72%951.11%25136.41%86-34.85%
Dec 31, 2025213-44.96%43,667,676-57.65%380.47%84-55.08%72-42.40%
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%

Top Mutual Funds Shareholders


HolderShares% HoldingChange
Vanguard Windsor II Inv5.01M4.39%-
Vanguard Windsor™ II Inv4.58M3.99%-
iShares Core S&P Mid-Cap ETF3.91M3.43%120.00
Vanguard US Total Market Shares ETF3.70M3.21%-113.48K
Vanguard MStar Total Stk Mkt Idx Invest3.64M3.19%14.55K
Vanguard Total Stock Mkt Idx Inv3.62M3.19%39.73K
Vanguard Morn Total Stk Mkt Idx Investor3.62M3.18%39.73K
FullerThaler Beh Small-Cap Value SMA3.57M3.13%3.46M
FullerThaler Behavioral Small-Cap Value3.57M3.13%-134.60K
Undiscovered Managers Behavioral Val L3.33M2.92%-134.60K

Recent Insider Transactions


DateNameRoleActivityValue
Feb 25, 2026Carter Deon VP & President CAPVSell$154.23K
Feb 24, 2026Castle Angela M VP & Chief Legal OfficerSell$57.70K
Feb 03, 2026Sumner R Nichole VP & ControllerSell$106.85K
Feb 03, 2026Slater Todd A VP & CFOSell$2.07M
Nov 26, 2025VERMILLION TERESA M VP & TreasurerSell$93.85K

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 (16.02M shares, 14.08%), Blackrock funding, inc. /de (11.98M shares, 10.53%), and Vanguard group (11.34M shares, 9.89%). Together, they hold 34.50% 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?

Grizzlyrock capital is Olin’s biggest shareholder by percentage of total assets invested, with 5.48% of its assets in 395.09K Olin shares, valued at 7.83M$.

Who is the top mutual fund holder of Olin shares?

Vanguard Windsor II Inv is the top mutual fund holder of Olin shares, with 4.39% of its total shares outstanding invested in 5.01M Olin shares.

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