OLIN Corp

OLN

Exchange: NYSE
Industry: Chemicals & Allied Products
SEC CIK: 0000074303

SEC filings (opens in a new tab)

No open-market purchases or sales by OLIN Corp insiders were filed in the last 90 days; 415 institutions reported holding it in 13F filings for Q2 2026, worth $2.26B in total; Semper Augustus is the only superinvestor holding it.

13F holders, Q3 2026

Institutional positions in OLIN Corp as of Sep 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Q3 2026 data is still coming in (13F filing deadline: Nov 16, 2026), so these numbers are incomplete.

Institutional holders: 3; 0 vs. Q2 2026
Shares held: 5.09K; +2.84K (+126.6%) vs. Q2 2026
Total value: $78.6K; +$34.1K (+76.7%) vs. Q2 2026
New holders: 1; 0 more added
Sold out: 1; 2 more reduced

412 institutions that held it in Q2 2026 haven't filed for Q3 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2026: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting OLN on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holders

Value held

Institutions holding OLN and their total value by quarter
Quarter	Holders	Value
Q2 2026	415	$2.26B
Q1 2026	422	$3.35B
Q4 2025	379	$2.21B
Q3 2025	370	$2.58B
Q2 2025	352	$2.09B
Q1 2025	354	$2.45B
Q4 2024	384	$3.51B
Q3 2024	396	$4.92B
Q2 2024	445	$4.93B
Q1 2024	433	$6.15B
Q4 2023	426	$5.72B
Q3 2023	428	$5.33B
Q2 2023	463	$5.62B
Q1 2023	481	$6.18B
Q4 2022	472	$6.12B
Q3 2022	455	$5.23B
Q2 2022	483	$5.94B
Q1 2022	476	$6.70B
Q4 2021	462	$7.68B
Q3 2021	388	$6.58B
Q2 2021	360	$6.36B
Q1 2021	318	$5.16B

Institutions, Q3 2026

Shares, value and share of portfolio for each institution holding OLIN Corp; share changes are against Q2 2026.

Institutions holding OLN in Q3 2026
Institution	Shares	Value	% of portfolio	Change in shares	Action
Price T Rowe Associates Inc	–	–	–	–	Not filed
Jupiter Asset Management Ltd	–	–	–	–	Not filed
Dba Trading, LLC	–	–	–	–	Not filed
Vident Advisory, LLC	–	–	–	–	Not filed
Winton Group Ltd	–	–	–	–	Not filed
Wedge Capital Management L L P	–	–	–	–	Not filed
Prudential Financial Inc	–	–	–	–	Not filed
Millennium Management LLC	–	–	–	–	Not filed
Mercer Global Advisors Inc	–	–	–	–	Not filed
Envestnet Asset Management Inc	–	–	–	–	Not filed
Summit Trail Advisors, LLC	–	–	–	–	Not filed
Freestone Grove Partners LP	–	–	–	–	Not filed
Wealth Enhancement Advisory Services, LLC	–	–	–	–	Not filed
Readystate Asset Management LP	–	–	–	–	Not filed
Russell Investments Group, Ltd.	–	–	–	–	Not filed
Manufacturers Life Insurance Company, The	–	–	–	–	Not filed
Cerity Partners LLC	–	–	–	–	Not filed
State of Wisconsin Investment Board	–	–	–	–	Not filed
Great West Life Assurance Co	–	–	–	–	Not filed
Fruth Investment Management	–	–	–	–	Not filed
Wolverine Asset Management LLC	–	–	–	–	Not filed
Virginia Retirement Systems Et Al	–	–	–	–	Not filed
ARGA Investment Management, LP	–	–	–	–	Not filed
IMC-Chicago, LLC	–	–	–	–	Not filed
New York State Common Retirement Fund	–	–	–	–	Not filed
Monetary Management Group Inc	–	–	–	–	Not filed
Magnetar Financial LLC	–	–	–	–	Not filed
Axq Capital, LP	–	–	–	–	Not filed
Jump Financial, LLC	–	–	–	–	Not filed
CastleKnight Management LP	–	–	–	–	Not filed
Brevan Howard Capital Management LP	–	–	–	–	Not filed
Capital Fund Management S.A.	–	–	–	–	Not filed
Caption Management, LLC	–	–	–	–	Not filed
Police & Firemen's Retirement System of New Jersey	–	–	–	–	Not filed
Jupiter Topco LLC	–	–	–	–	Not filed
Amalgamated Bank	–	–	–	–	Not filed
Toroso Investments, LLC	–	–	–	–	Not filed
V. M. Manning & Co., Inc.	–	–	–	–	Not filed
Treasurer of the State of North Carolina	–	–	–	–	Not filed
Sit Investment Associates Inc	–	–	–	–	Not filed
State of New Jersey Common Pension Fund D	–	–	–	–	Not filed
Madison Asset Management, LLC	–	–	–	–	Not filed
Cambridge Investment Research Advisors, Inc.	–	–	–	–	Not filed
Vanguard Global Advisers, LLC	–	–	–	–	Not filed
State of Tennessee, Treasury Department	–	–	–	–	Not filed
SG Americas Securities, LLC	–	–	–	–	Not filed
Mutual of America Capital Management LLC	–	–	–	–	Not filed
First Eagle Investment Management, LLC	–	–	–	–	Not filed
Teachers Retirement System of the State of Kentucky	–	–	–	–	Not filed
Jane Street Group, LLC	–	–	–	–	Not filed
KLP Kapitalforvaltning AS	–	–	–	–	Not filed
Barclays PLC	–	–	–	–	Not filed
Merrion Investment Management Co, LLC	–	–	–	–	Not filed
Blackstone Group Inc.	–	–	–	–	Not filed
Unison Advisors LLC	–	–	–	–	Not filed
Caitong International Asset Management Co., Ltd	–	–	–	–	Not filed
Rossby Financial, LCC	–	–	–	–	Not filed
Zurcher Kantonalbank (Zurich Cantonalbank)	–	–	–	–	Not filed
Bramshill Investments, LLC	–	–	–	–	Not filed
SummerHaven Investment Management, LLC	–	–	–	–	Not filed
Louisiana State Employees Retirement System	–	–	–	–	Not filed
Canada Pension Plan Investment Board	–	–	–	–	Not filed
Public Employees Retirement System of Ohio	–	–	–	–	Not filed
Arizona State Retirement System	–	–	–	–	Not filed
First Citizens Bank & Trust Co	–	–	–	–	Not filed
CIBC Bancorp USA Inc.	–	–	–	–	Not filed
Envestnet Portfolio Solutions, Inc.	–	–	–	–	Not filed
Aristeia Capital LLC	–	–	–	–	Not filed
Vanguard Investments Australia, Ltd.	–	–	–	–	Not filed
Occudo Quantitative Strategies LP	–	–	–	–	Not filed
Tudor Investment Corp Et Al	–	–	–	–	Not filed
Moody National Bank Trust Division	–	–	–	–	Not filed
Dark Forest Capital Management LP	–	–	–	–	Not filed
Sowell Financial Services LLC	–	–	–	–	Not filed
Commonwealth of Pennsylvania Public School Empls Retrmt Sys	–	–	–	–	Not filed
JustInvest LLC	–	–	–	–	Not filed
Rothschild Investment LLC	–	–	–	–	Not filed
Northwestern Mutual Investment Management Company, LLC	–	–	–	–	Not filed
Thrivent Financial for Lutherans	–	–	–	–	Not filed
Boston Partners	–	–	–	–	Not filed
Great Lakes Advisors, LLC	–	–	–	–	Not filed
New Mexico Educational Retirement Board	–	–	–	–	Not filed
Oarsman Capital, Inc.	–	–	–	–	Not filed
Mackenzie Financial Corp	–	–	–	–	Not filed
PEAK6 LLC	–	–	–	–	Not filed
Colony Group, LLC	–	–	–	–	Not filed
Oregon Public Employees Retirement Fund	–	–	–	–	Not filed
Whittier Trust Co of Nevada Inc	–	–	–	–	Not filed
CI Private Wealth, LLC	–	–	–	–	Not filed
CoreFirst Bank & Trust	–	–	–	–	Not filed
WealthTrust Axiom LLC	–	–	–	–	Not filed
Boothbay Fund Management, LLC	–	–	–	–	Not filed
BNP Paribas Arbitrage, SA	–	–	–	–	Not filed
Bleakley Financial Group, LLC	–	–	–	–	Not filed
Bridgefront Capital, LLC	–	–	–	–	Not filed
Shufro Rose & Co LLC	–	–	–	–	Not filed
Aquatic Capital Management LLC	–	–	–	–	Not filed
Ameritas Investment Partners, Inc.	–	–	–	–	Not filed
EntryPoint Capital, LLC	–	–	–	–	Not filed
Sterling Capital Management LLC	–	–	–	–	Not filed