Olin (OLN) Institutional Ownership

$18.56 -0.15 (-0.80%)

As of 11:59 AM Eastern

Current Institutional Ownership Percentage: 88.67%
Number of Institutional Buyers (last 12 months): 182
Total Institutional Inflows (last 12 months): $620.97M

Number of Institutional Sellers (last 12 months): 122
Total Institutional Outflows (last 12 months): $270.09M

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OLN Institutional Buying and Selling by Quarter

Olin Major Shareholders & Ownership History

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Reporting Date	Major Shareholder Name	Shares Held	Market Value	% of Portfolio	Quarterly Change in Shares	Ownership in Company
8/18/2026	Public Employees Retirement System of Ohio	32,371	$642K	0.0%	N/A	0.028%
8/11/2026	Madison Asset Management LLC	45,501	$902K	0.0%	N/A	0.040%
8/10/2026	Great Lakes Advisors LLC	25,086	$497K	0.0%	N/A	0.022%
8/6/2026	Bank of New York Mellon Corp	1,200,056	$23.79M	0.0%	N/A	1.053%
7/10/2026	Fruth Investment Management	69,162	$1.37M	0.3%	-1.0%	0.061%
7/7/2026	GAMMA Investing LLC	4,987	$99K	0.0%	-36.9%	0.004%
7/7/2026	Arlington Trust Co LLC	7,085	$140K	0.0%	N/A	0.006%
5/26/2026	Glenmede Trust Co. NA	6,926	$206K	0.0%	N/A	0.006%
5/22/2026	Segall Bryant & Hamill LLC	496,791	$14.77M	0.2%	N/A	0.436%
5/19/2026	Bank of America Corp DE	1,774,009	$52.74M	0.0%	-1.1%	1.558%
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5/19/2026	Edgestream Partners L.P.	231,874	$6.89M	0.2%	N/A	0.204%
5/18/2026	Sunbelt Securities Inc.	1,512	$45K	0.0%	N/A	0.001%
5/18/2026	Amundi	684,036	$20.34M	0.0%	+337.2%	0.601%
5/18/2026	California State Teachers Retirement System	134,579	$4.00M	0.0%	+24.1%	0.118%
5/18/2026	Readystate Asset Management LP	350,842	$10.43M	0.5%	N/A	0.308%
5/18/2026	Royal Bank of Canada	154,564	$4.60M	0.0%	-2.8%	0.136%
5/18/2026	Rokos Capital Management LLP	229,817	$6.83M	0.1%	N/A	0.202%
5/18/2026	Empowered Funds LLC	435,599	$12.95M	0.1%	+1,946.0%	0.382%
5/16/2026	The Manufacturers Life Insurance Company	74,268	$2.21M	0.0%	-4.2%	0.065%
5/16/2026	Quantinno Capital Management LP	405,798	$12.06M	0.0%	-2.2%	0.356%
5/16/2026	Saba Capital Management L.P.	84,036	$2.50M	0.1%	-36.9%	0.074%
5/16/2026	SummitTX Capital L.P.	197,018	$5.86M	0.2%	N/A	0.173%
5/15/2026	Entropy Technologies LP	48,875	$1.45M	0.1%	+73.1%	0.043%
5/14/2026	Gabelli Funds LLC	221,243	$6.58M	0.0%	-1.2%	0.194%
5/14/2026	Public Employees Retirement System of Ohio	33,419	$994K	0.0%	-3.3%	0.029%
5/14/2026	Sei Investments Co.	169,374	$5.04M	0.0%	+132.5%	0.149%
5/14/2026	State of Wyoming	16,277	$484K	0.1%	+99.4%	0.014%
5/13/2026	First Citizens Bank & Trust Co.	31,230	$928K	0.0%	+2.0%	0.027%
5/13/2026	First Trust Advisors LP	713,041	$21.20M	0.0%	+80.8%	0.626%
5/8/2026	Madison Asset Management LLC	96,657	$2.87M	0.0%	-1.0%	0.085%
5/7/2026	Dimensional Fund Advisors LP	5,627,997	$167.31M	0.0%	+22.4%	4.943%
5/7/2026	Parallel Advisors LLC	3,682	$109K	0.0%	+322.2%	0.003%
5/5/2026	D.A. Davidson & CO.	11,264	$335K	0.0%	N/A	0.010%
5/5/2026	Sharpepoint LLC	7,508	$223K	0.1%	N/A	0.007%
5/5/2026	Bank of New York Mellon Corp	1,232,912	$36.65M	0.0%	+1.0%	1.083%
5/5/2026	Maryland State Retirement & Pension System	6,821	$203K	0.0%	N/A	0.006%
5/4/2026	AMG National Trust Bank	81,901	$2.44M	0.1%	-2.4%	0.072%
5/4/2026	Principal Financial Group Inc.	253,727	$7.54M	0.0%	+3.4%	0.223%
5/1/2026	180 Wealth Advisors LLC	8,317	$247K	0.0%	N/A	0.007%
5/1/2026	Fifth Third Bancorp	100,847	$3.00M	0.0%	+9,748.3%	0.089%
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5/1/2026	Sequoia Financial Advisors LLC	19,202	$571K	0.0%	+11.1%	0.017%
5/1/2026	ARGA Investment Management LP	61,315	$1.82M	0.1%	+2.5%	0.054%
5/1/2026	KLCM Advisors Inc.	473,056	$14.06M	1.2%	+1.3%	0.415%
4/30/2026	Oregon Public Employees Retirement Fund	23,302	$693K	0.0%	+2.2%	0.020%
4/28/2026	Whittier Trust Co. of Nevada Inc.	22,351	$653K	0.0%	N/A	0.020%
4/27/2026	New York State Teachers Retirement System	116,238	$3.46M	0.0%	-3.1%	0.102%
4/27/2026	Y Intercept Hong Kong Ltd	102,554	$3.05M	0.1%	+38.0%	0.090%
4/25/2026	Pzena Investment Management LLC	4,431,613	$131.75M	0.4%	-1.7%	3.892%
4/22/2026	Pictet Asset Management Holding SA	20,992	$624K	0.0%	+12.4%	0.018%
4/22/2026	Sterling Capital Management LLC	3,852	$115K	0.0%	-43.3%	0.003%
4/22/2026	Fruth Investment Management	69,862	$2.08M	0.5%	-0.6%	0.061%
4/21/2026	Louisiana State Employees Retirement System	32,900	$978K	0.0%	N/A	0.029%
4/20/2026	Blue Trust Inc.	4,336	$129K	0.0%	-17.0%	0.004%
4/20/2026	Brown Lisle Cummings Inc.	12,707	$378K	0.1%	-11.5%	0.011%
4/18/2026	Cidel Asset Management Inc.	7,140	$212K	0.0%	N/A	0.006%
4/17/2026	Sterneck Capital Management LLC	7,017	$209K	0.1%	N/A	0.006%
4/17/2026	Values First Advisors Inc.	12,909	$384K	0.2%	+3.4%	0.011%
4/16/2026	SG Americas Securities LLC	353,924	$10.52M	0.0%	-22.3%	0.311%
3/17/2026	Rockefeller Capital Management L.P.	1,231	$26K	0.0%	+115.2%	0.001%
3/12/2026	Nalls Sherbakoff Group LLC	3,159	$66K	0.0%	N/A	0.003%
3/9/2026	Corient Private Wealth LLC	15,909	$331K	0.0%	-10.3%	0.014%
3/6/2026	Hsbc Holdings PLC	80,166	$1.69M	0.0%	+755.0%	0.071%
2/23/2026	Virtu Financial LLC	12,019	$250K	0.0%	N/A	0.011%
2/19/2026	Invesco Ltd.	804,807	$16.76M	0.0%	+53.2%	0.705%
2/19/2026	Corient Private Wealth LLC	15,797	$329K	0.0%	-10.9%	0.014%
2/18/2026	First Citizens Bank & Trust Co.	30,621	$638K	0.0%	-4.2%	0.027%
2/18/2026	State of Tennessee Department of Treasury	44,319	$922K	0.0%	+394.7%	0.039%
2/18/2026	Fuller & Thaler Asset Management Inc.	5,882,744	$122.54M	0.4%	-9.0%	5.155%
2/18/2026	Empowered Funds LLC	21,290	$443K	0.0%	+45.2%	0.019%
2/18/2026	XTX Topco Ltd	114,751	$2.39M	0.1%	N/A	0.101%
2/18/2026	VARCOV Co.	11,233	$234K	0.1%	N/A	0.010%
2/18/2026	Voloridge Investment Management LLC	794,711	$16.55M	0.1%	+35.9%	0.696%
2/18/2026	Susquehanna Portfolio Strategies LLC	309,813	$6.45M	0.1%	N/A	0.271%
2/18/2026	Twinbeech Capital LP	36,792	$766K	0.1%	N/A	0.032%
2/18/2026	Saba Capital Management L.P.	133,223	$2.78M	0.1%	+19.5%	0.117%
2/18/2026	Polymer Capital Management US LLC	21,300	$444K	0.0%	-31.6%	0.019%
2/18/2026	Occudo Quantitative Strategies LP	16,486	$343K	0.0%	-15.3%	0.014%
2/18/2026	Millennium Management LLC	35,130	$732K	0.0%	-98.6%	0.031%
2/18/2026	Invenomic Capital Management LP	387,259	$8.07M	0.4%	+68.0%	0.339%
2/18/2026	Janus Henderson Group PLC	51,762	$1.08M	0.0%	+16.8%	0.045%
2/18/2026	Gotham Asset Management LLC	332,156	$6.92M	0.0%	+38.2%	0.291%
2/17/2026	Freestone Grove Partners LP	79,258	$1.65M	0.0%	+81.4%	0.069%
2/17/2026	Guggenheim Capital LLC	18,158	$378K	0.0%	+106.6%	0.016%
2/17/2026	Schonfeld Strategic Advisors LLC	37,230	$775K	0.0%	N/A	0.033%
2/17/2026	AQR Capital Management LLC	616,364	$12.84M	0.0%	-66.0%	0.540%
2/17/2026	Cetera Investment Advisers	18,543	$386K	0.0%	-15.8%	0.016%
2/17/2026	Jain Global LLC	667,101	$13.90M	0.1%	+32.4%	0.585%
2/17/2026	Trexquant Investment LP	102,916	$2.14M	0.0%	N/A	0.090%
2/17/2026	Amundi	156,450	$3.26M	0.0%	-83.4%	0.137%
2/17/2026	Orbis Allan Gray Ltd	3,804,561	$79.25M	0.3%	+448.9%	3.334%
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2/17/2026	Jump Financial LLC	108,950	$2.27M	0.0%	-13.5%	0.095%
2/17/2026	Price T Rowe Associates Inc. MD	83,987	$1.75M	0.0%	+5.2%	0.074%
2/17/2026	Weiss Asset Management LP	164,152	$3.42M	0.0%	+218.6%	0.144%
2/17/2026	Adage Capital Partners GP L.L.C.	350,000	$7.29M	0.0%	+250.0%	0.307%
2/17/2026	Loews Corp	200,000	$4.17M	0.0%	N/A	0.175%
2/17/2026	Public Employees Retirement System of Ohio	34,558	$720K	0.0%	-3.7%	0.030%
2/17/2026	Russell Investments Group Ltd.	56,161	$1.17M	0.0%	+13.5%	0.049%
2/17/2026	State of Wisconsin Investment Board	55,905	$1.17M	0.0%	+380.7%	0.049%
2/17/2026	Captrust Financial Advisors	18,718	$390K	0.0%	N/A	0.016%
2/17/2026	ExodusPoint Capital Management LP	218,457	$4.55M	0.0%	+1,088.0%	0.191%

OLN Institutional Ownership - Frequently Asked Questions

During the previous two years, 378 institutional investors and hedge funds held shares of Olin. The most heavily invested institutionals were Hotchkis & Wiley Capital Management LLC ($317.14M), Vanguard Group Inc. ($236.17M), Dimensional Fund Advisors LP ($167.31M), Pzena Investment Management LLC ($131.75M), Boston Partners ($127.78M), Fuller & Thaler Asset Management Inc. ($122.54M), and FMR LLC ($114.02M).Learn more on Olin's institutional investors.

88.67% of Olin's stock is owned by institutional investors. Learn more on OLN's institutional investor holdings.

Of the 309 institutional investors that purchased Olin's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Orbis Allan Gray Ltd ($3.11M), Norges Bank ($2.80M), Millennium Management LLC ($2.54M), Ilex Capital Partners UK LLP ($2.51M), Hotchkis & Wiley Capital Management LLC ($2.45M), Fuller & Thaler Asset Management Inc. ($2.31M), and Dimensional Fund Advisors LP ($1.92M).

Institutional investors have bought a total of 25,949,056 shares in the last 24 months. This purchase volume represents approximately $620.97M in transactions.

Of the 122 institutional investors that sold Olin's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Millennium Management LLC ($2.45M), AQR Capital Management LLC ($1.20M), Fuller & Thaler Asset Management Inc. ($1.16M), UBS Group AG ($904.12K), Amundi ($785.25K), Woodline Partners LP ($713.69K), and Jump Financial LLC ($597.89K).

Institutional investors have sold a total of 12,077,666 shares in the last 24 months. This volume of shares sold represents approximately $270.09M in transactions.

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Institutional ownership data for NYSE:OLN is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 8/18/2026. New 13F filings are added each quarter as they're published.

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Olin (OLN) Institutional Ownership

OLN Institutional Buying and Selling by Quarter

Olin Major Shareholders & Ownership History

OLN Institutional Ownership - Frequently Asked Questions

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Olin (OLN) Institutional Ownership

Institutional Ownership Changes (13F Filings) for Olin (NYSE:OLN)

OLN Institutional Buying and Selling by Quarter

Olin Major Shareholders & Ownership History

OLN Institutional Ownership - Frequently Asked Questions

Who are the largest shareholders of OLN shares?

What percentage of Olin's stock is owned by institutional investors?

Which institutional investors have been buying Olin's stock?

How much institutional buying is happening at Olin?

Which of Olin's major shareholders have been selling company stock?

How much institutional selling is happening at Olin?

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