Olin Ownership | Who Owns Olin?

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Olin Ownership Summary

Olin is owned by 89.10% institutional investors, 0.47% insiders, and 10.44% retail investors. Blackrock funding, inc. /de is the largest institutional shareholder, holding 11.04% 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

Type	Name	% Inst	% Insiders	% Retail
Stock	Olin	89.10%	0.47%	10.44%
Sector	Basic Materials Stocks	52.81%	12.20%	34.99%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Blackrock funding, inc. /de	12.71M	11.04%	$255.33M
Hotchkis & wiley capital management	12.03M	10.45%	$241.66M
Vanguard group	11.50M	9.84%	$388.80M
Blackrock	11.66M	9.72%	$549.75M
Fuller & thaler asset management	6.45M	5.60%	$129.58M
State street	4.82M	4.02%	$227.31M
Dimensional fund advisors lp	3.98M	3.40%	$134.41M
Yacktman asset management lp	3.90M	3.33%	$131.75M
Pzena investment management	3.71M	3.17%	$125.38M
Fmr	3.37M	2.89%	$114.02M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Soapstone management	150.00K	2.84%	$3.64M
Coombe, bender	96.66K	2.68%	$4.56M
Semper augustus investments group	797.44K	2.25%	$16.02M
Thomist capital management, lp	252.33K	1.92%	$5.16M
Ilex capital partners (uk) llp	2.51M	1.67%	$50.48M
Yacktman asset management lp	3.90M	1.54%	$131.75M
Kraematon investment advisors	28.22K	0.94%	$953.79K
Hotchkis & wiley capital management	12.03M	0.78%	$241.66M
Huber capital management	147.56K	0.50%	$2.96M
M3 advisory group	20.23K	0.49%	$683.66K

Top Buyers

Holder	Shares	% Assets	Change
Ilex capital partners (uk) llp	2.51M	1.67%	2.51M
Ubs group	1.93M	0.01%	1.77M
Thrivent financial for lutherans	1.61M	0.11%	1.59M
Norges bank	1.42M	0.01%	1.42M
Qube research	772.05K	0.02%	772.05K

Top Sellers

Holder	Shares	% Assets	Change
Fmr	3.37M	0.01%	-6.38M
Boston partners	-	-	-3.79M
Pacer advisors	-	-	-2.82M
Millennium management	2.14M	0.03%	-1.06M
Allspring global investments	-	-	-984.74K

New Positions

Holder	Shares	% Assets	Change	Value
Norges bank	1.42M	0.01%	1.42M	$47.89M
Qube research	772.05K	0.02%	772.05K	$15.51M
Alyeska investment group	390.78K	0.03%	390.78K	$7.85M
Thomist capital management, lp	252.33K	1.92%	252.33K	$5.16M
Twinbeech capital lp	245.03K	0.11%	245.03K	$4.92M

Sold Out

Holder	Change
Harbor investment advisory	-1.00
Evermay wealth management	-1.00
Clearstead advisors	-1.00
Tfo-tdc	-7.00
Financial gravity asset management	-9.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Jun 30, 2025	368	-1.60%	102,549,725	3.75%	89	1.21%	187	-9.66%	116	17.17%
Mar 31, 2025	8	-98.01%	3,053,987	-97.06%	2	0.03%	2	-98.88%	3	-97.83%
Dec 31, 2024	369	-11.93%	94,254,929	-6.84%	80	1.08%	160	3.23%	128	-25.58%
Sep 30, 2024	412	-9.65%	100,995,122	-3.48%	86	1.13%	152	-28.30%	168	8.39%
Jun 30, 2024	452	0.67%	104,568,316	0.76%	87	1.16%	210	5.00%	153	2.68%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
FullerThaler Behavioral Small-Cap Value	5.51M	4.80%	-2.61K
Undiscovered Managers Behavioral Val L	5.30M	4.62%	-
Vanguard Windsor™ II Inv	4.58M	3.99%	-
iShares Core S&P Mid-Cap ETF	3.75M	3.27%	-6.71K
Vanguard US Total Market Shares ETF	3.70M	3.21%	-113.48K
Vanguard Total Stock Mkt Idx Inv	3.66M	3.19%	-77.76K
Vanguard Small Cap Index	2.80M	2.44%	-12.91K
Pacer US Cash Cows 100 ETF	2.80M	2.43%	4.13K
AMG Yacktman I	2.21M	1.92%	-
JHancock Disciplined Value Mid Cap I	2.05M	1.78%	-688.92K

Recent Insider Transactions

Date	Name	Role	Activity	Value
Aug 13, 2025	VERMILLION TERESA M	VP & Treasurer	Sell	$126.64K
Aug 06, 2025	Ehrhardt Marc	VP & Pres Corp Development	Buy	$373.96K
Feb 04, 2025	Lane Kenneth Todd	President & CEO	Buy	$203.45K
Nov 08, 2024	Sumner R Nichole	VP & Controller	Sell	$459.41K
Feb 27, 2024	Sutton Scott McDougald	President & CEO	Sell	$525.00K

Insider Transactions Trends

Date	Buy	Sell
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 Blackrock funding, inc. /de (12.71M shares, 11.04%), Hotchkis & wiley capital management (12.03M shares, 10.45%), and Vanguard group (11.5M shares, 9.84%). Together, they hold 31.33% 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?

Soapstone management is Olin’s biggest shareholder by percentage of total assets invested, with 2.84% of its assets in 150K Olin shares, valued at 3.64M$.

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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