How many institutional investors hold OLN?

4 tracked institutional investors disclosed a position in OLN (OLIN CORP) in their most recent 13F filing.

Who is the largest institutional holder of OLN?

Ken Griffin, Citadel Advisors, holds the largest disclosed position in OLN, valued at $64M.

Where does this OLN ownership data come from?

SEC Form 13F-HR filings, accessed via EDGAR. 13F filings are disclosed quarterly with a 45-day reporting delay and cover U.S.-listed long equity positions only. This is not investment advice.

OLN — OLIN CORP

Name: OLIN CORP (OLN) — Institutional Ownership
Creator: InvestorLens
License: https://www.sec.gov/about/website-policies

Public company

For educational research only.InvestorLens analyzes public regulatory filings (SEC EDGAR, STOCK Act PTRs) that may be delayed by 45 days or more. Information shown is historical and is not financial, legal, or tax advice, nor a recommendation or solicitation to buy or sell any security. Always do your own research.

InvestorLens aggregates public filing data to show which tracked investors reported holdings in this stock. Dollar values represent reported position values, not market capitalization, and may be delayed up to 45 days. Not a recommendation.

Sourced from SEC EDGAR public filings

About OLIN CORP (OLN)

OLIN CORP (OLN) appears in the most recent 13F filings of 4 tracked institutional investors. The largest disclosed position is held by Ken Griffin (Citadel Advisors), valued at $64M. Across recent filings, tracked investors recorded 2 new positions, 1 increased, 1 reduced, and 1 exited. All data sourced from SEC 13F filings.

Smart Money Consensus™

Based on recent institutional activity in OLN

/100

Institutional Accumulation

Added / Increased3

Reduced1

Exited1

BearishBullish

Crowded Trade Score™

How many top investors track OLN

/100

Emerging Interest

4investors

A small number of top investors own this.

UndiscoveredCrowded

151015+

OLN Ownership Composition

How OLIN CORP is held across tracked investor types, based on reported 13F positions.

Dominant Type

Other

95% of tracked value

Institutions

tracked investors

Total Reported

$106.4M

combined 13F value

Other95.4%
Hedge Funds4.6%

Other(3)

95.4%

Hedge Funds(1)

4.6%

Tracked investors reporting OLN

Investor	Firm	Shares	Market value	% of portfolio	As of
Ken Griffin	Citadel Advisors	2.2M	$64.4M	0.01%	Mar 31, 2026
Izzy Englander	Millennium Management	1.1M	$31.7M	0.01%	Mar 31, 2026
Steve Cohen	Point72 Asset Management	166K	$4.9M	0.01%	Mar 31, 2026
Ray Dalio	Bridgewater Associates	178.6K	$5.3M	0.02%	Mar 31, 2026

Ken GriffinMar 31, 2026
Citadel Advisors
Shares
2.2M
Value
$64.4M
% Portfolio
0.01%
Izzy EnglanderMar 31, 2026
Millennium Management
Shares
1.1M
Value
$31.7M
% Portfolio
0.01%
Steve CohenMar 31, 2026
Point72 Asset Management
Shares
166K
Value
$4.9M
% Portfolio
0.01%
Ray DalioMar 31, 2026
Bridgewater Associates
Shares
178.6K
Value
$5.3M
% Portfolio
0.02%

Recent activity

Investor	Action	Δ %	Current value	Filing date
Ken Griffin	New	—	$64.4M	May 15, 2026
Ray Dalio	Increased	0.60%	$5.3M	May 15, 2026
Ken Griffin	Sold	-100.00%	$0	Feb 17, 2026
Ray Dalio	Reduced	-3.17%	$3.7M	Feb 13, 2026
Ray Dalio	New	—	$4.6M	Nov 13, 2025

Ken Griffin
New
$64.4MMay 15, 2026
Ray Dalio
Increased
$5.3M(0.60%)May 15, 2026
Ken Griffin
Sold
$0(-100.00%)Feb 17, 2026
Ray Dalio
Reduced
$3.7M(-3.17%)Feb 13, 2026
Ray Dalio
New
$4.6MNov 13, 2025

Frequently asked questions

How many institutional investors hold OLN?: 4 tracked institutional investors disclosed a position in OLN (OLIN CORP) in their most recent 13F filing.
Who is the largest institutional holder of OLN?: Ken Griffin, Citadel Advisors, holds the largest disclosed position in OLN, valued at $64M.
Did institutional ownership of OLN increase or decrease?: Across recent 13F filings, tracked investors recorded 2 new positions, 1 increased, 1 reduced, and 1 fully exited OLN.
Where does this OLN ownership data come from?: SEC Form 13F-HR filings, accessed via EDGAR. 13F filings are disclosed quarterly with a 45-day reporting delay and cover U.S.-listed long equity positions only. This is not investment advice.