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
Versant Capital Management, Inc	11	$171	0.00%	−1,468−99.3%	Reduced
Massmutual Trust Co FSB	157	$2.43K	0.00%	−255−61.9%	Reduced
CX Institutional	4,920	$76.0K	0.00%	+4,920	New
Rosenberg Matthew Hamilton	0	$0	0.00%	−354−100.0%	Sold out
Hotchkis & Wiley Capital Management LLC	–	–	–	–	Not filed
BlackRock, Inc.	–	–	–	–	Not filed
Dimensional Fund Advisors LP	–	–	–	–	Not filed
AQR Capital Management LLC	–	–	–	–	Not filed
Vanguard Portfolio Management LLC	–	–	–	–	Not filed
Vanguard Capital Management LLC	–	–	–	–	Not filed
State Street Corp	–	–	–	–	Not filed
Fuller & Thaler Asset Management, Inc.	–	–	–	–	Not filed
Yacktman Asset Management LP	–	–	–	–	Not filed
Pzena Investment Management LLC	–	–	–	–	Not filed
Goldman Sachs Group Inc	–	–	–	–	Not filed
Citadel Advisors LLC	–	–	–	–	Not filed
Semper Augustus Investments Group LLCSuperinvestorSemper Augustus	–	–	–	–	Not filed
Geode Capital Management, LLC	–	–	–	–	Not filed
Charles Schwab Investment Management Inc	–	–	–	–	Not filed
Morgan Stanley	–	–	–	–	Not filed
Captrust Financial Advisors	–	–	–	–	Not filed
Bank of America Corp	–	–	–	–	Not filed
Bank of New York Mellon Corp	–	–	–	–	Not filed
JPMorgan Chase & Co	–	–	–	–	Not filed
Northern Trust Corp	–	–	–	–	Not filed
Allianz Asset Management GmbH	–	–	–	–	Not filed
Invesco Ltd.	–	–	–	–	Not filed
Victory Capital Management Inc	–	–	–	–	Not filed
Bridgeway Capital Management, LLC	–	–	–	–	Not filed
UBS Group AG	–	–	–	–	Not filed
Vanguard Fiduciary Trust Co	–	–	–	–	Not filed
Raymond James Financial Inc	–	–	–	–	Not filed
FMR LLC	–	–	–	–	Not filed
Nuveen, LLC	–	–	–	–	Not filed
PDT Partners, LLC	–	–	–	–	Not filed
Gotham Asset Management, LLC	–	–	–	–	Not filed
Empowered Funds, LLC	–	–	–	–	Not filed
Two Sigma Investments, LP	–	–	–	–	Not filed
Segall Bryant & Hamill, LLC	–	–	–	–	Not filed
First Trust Advisors LP	–	–	–	–	Not filed
MetLife Investment Management	–	–	–	–	Not filed
Balyasny Asset Management LLC	–	–	–	–	Not filed
KLCM Advisors, Inc.	–	–	–	–	Not filed
CenterBook Partners LP	–	–	–	–	Not filed
Retirement Systems of Alabama	–	–	–	–	Not filed
Connor, Clark & Lunn Investment Management Ltd.	–	–	–	–	Not filed
Quantinno Capital Management LP	–	–	–	–	Not filed
Grizzlyrock Capital, LLC	–	–	–	–	Not filed
American Century Companies Inc	–	–	–	–	Not filed
Point72 Asset Management, L.P.	–	–	–	–	Not filed
Old West Investment Management, LLC	–	–	–	–	Not filed
UBS Asset Management Americas Inc	–	–	–	–	Not filed
Susquehanna Portfolio Strategies, LLC	–	–	–	–	Not filed
LPL Financial LLC	–	–	–	–	Not filed
Los Angeles Capital Management LLC	–	–	–	–	Not filed
Renaissance Technologies LLC	–	–	–	–	Not filed
Rhumbline Advisers	–	–	–	–	Not filed
Arrowstreet Capital, Limited Partnership	–	–	–	–	Not filed
Susquehanna International Group, LLP	–	–	–	–	Not filed
Ameriprise Financial Inc	–	–	–	–	Not filed
Principal Financial Group Inc	–	–	–	–	Not filed
Man Group plc	–	–	–	–	Not filed
CNH Partners LLC	–	–	–	–	Not filed
Swiss National Bank	–	–	–	–	Not filed
Gabelli Funds LLC	–	–	–	–	Not filed
Stanley-Laman Group, Ltd.	–	–	–	–	Not filed
Engineers Gate Manager LP	–	–	–	–	Not filed
XTX Topco Ltd	–	–	–	–	Not filed
Alliancebernstein L.P.	–	–	–	–	Not filed
Legal & General Group Plc	–	–	–	–	Not filed
HSBC Holdings PLC	–	–	–	–	Not filed
Stifel Financial Corp	–	–	–	–	Not filed
Gamco Investors, Inc. Et Al	–	–	–	–	Not filed
Harbor Capital Advisors, Inc.	–	–	–	–	Not filed
Marshall Wace, LLP	–	–	–	–	Not filed
Royal Bank of Canada	–	–	–	–	Not filed
Royal Palms Capital LLC	–	–	–	–	Not filed
Wells Fargo & Company	–	–	–	–	Not filed
Loews Corp	–	–	–	–	Not filed
Citigroup Inc	–	–	–	–	Not filed
Hatch Cove Capital, LLC	–	–	–	–	Not filed
California State Teachers Retirement System	–	–	–	–	Not filed
Mariner, LLC	–	–	–	–	Not filed
State Board of Administration of Florida Retirement System	–	–	–	–	Not filed
Acadian Asset Management LLC	–	–	–	–	Not filed
Oak Thistle LLC	–	–	–	–	Not filed
Algert Global LLC	–	–	–	–	Not filed
New York State Teachers Retirement System	–	–	–	–	Not filed
Qube Research & Technologies Ltd	–	–	–	–	Not filed
State of Alaska, Department of Revenue	–	–	–	–	Not filed
ING Groep NV	–	–	–	–	Not filed
Creative Planning	–	–	–	–	Not filed
Bridgewater Associates, LP	–	–	–	–	Not filed
SEI Investments Co	–	–	–	–	Not filed
Jain Global LLC	–	–	–	–	Not filed
Saba Capital Management, L.P.	–	–	–	–	Not filed
Tiptree Advisors, LLC	–	–	–	–	Not filed
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.	–	–	–	–	Not filed
Vanguard Asset Management, Ltd	–	–	–	–	Not filed
Fifth Third Bancorp	–	–	–	–	Not filed