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Olin Corporation (OLN) institutional ownership

Latest close $21.88 Jul 27, 2026
Market cap$2.3B 52-week range SectorBasic Materials
Funds holding · Q1 2026
392
reported OLN position changes
Top owners · Q1 2026
No disclosed owners are available.
Institutional activity · Q1 2026
Net bought $154M
248 buyers · 144 sellers

Olin Corporation (OLN) price and institutional activity

Dates

Q1 2026

$510M bought by 248 investors
Goldman Sachs Group Inc$58MTwo Sigma Investments, LP$29M +246 more
$356M sold by 144 investors
Orbis Allan Gray Ltd-$93MPoint72 Asset Management, L.P.-$27M +142 more
Bought Sold Totals per quarter; hover a bar for the names.

Olin Corporation (OLN) institutional activity · 392

Investor Type Est. change Change Δ Own Date
Orbis Allan Gray Ltd · Exited −$93M
Change −3.8M Δ Own −100.0% Date Q1 2026
Orbis Allan Gray Ltd Exited· Q1 2026 −$93M −3.8M −100.0% Q1 2026
Goldman Sachs Group Inc · Added +$58M
Change +2.4M Date Q1 2026
Goldman Sachs Group Inc Added· Q1 2026 +$58M +2.4M Q1 2026
Two Sigma Investments, LP · New +$29M
Change +1.2M Date Q1 2026
Two Sigma Investments, LP New· Q1 2026 +$29M +1.2M Q1 2026
Point72 Asset Management, L.P. · Reduced −$27M
Change −1.1M Δ Own −87.9% Date Q1 2026
Point72 Asset Management, L.P. Reduced· Q1 2026 −$27M −1.1M −87.9% Q1 2026
Dimensional · Added +$25M
Change +1.0M Date Q1 2026
Dimensional Added· Q1 2026 +$25M +1.0M Q1 2026
Millennium Management LLC · Added +$25M
Change +1.0M Date Q1 2026
Millennium Management LLC Added· Q1 2026 +$25M +1.0M Q1 2026
Fuller & Thaler Asset Management, Inc. · Reduced −$21M
Change −867K Date Q1 2026
Fuller & Thaler Asset Management, Inc. Reduced· Q1 2026 −$21M −867K Q1 2026
Citadel Advisors LLC Added· Q1 2026 +$20M +813K +98.3% Q1 2026
Voloridge Investment Management, LLC · Exited −$19M
Change −795K Δ Own −100.0% Date Q1 2026
Voloridge Investment Management, LLC Exited· Q1 2026 −$19M −795K −100.0% Q1 2026
Masters Capital Management LLC · Exited −$17M
Change −700K Δ Own −100.0% Date Q1 2026
Masters Capital Management LLC Exited· Q1 2026 −$17M −700K −100.0% Q1 2026
Jain Global LLC · Exited −$16M
Change −667K Δ Own −100.0% Date Q1 2026
Jain Global LLC Exited· Q1 2026 −$16M −667K −100.0% Q1 2026
Bridgeway Capital Management, LLC · New +$16M
Change +665K Date Q1 2026
Bridgeway Capital Management, LLC New· Q1 2026 +$16M +665K Q1 2026
Wolf Hill Capital Management, LP · New +$15M
Change +634K Date Q1 2026
Wolf Hill Capital Management, LP New· Q1 2026 +$15M +634K Q1 2026
Merewether Investment Management, LP · New +$15M
Change +623K Date Q1 2026
Merewether Investment Management, LP New· Q1 2026 +$15M +623K Q1 2026
Metlife Investment Management, LLC · Added +$14M
Change +572K Date Q1 2026
Metlife Investment Management, LLC Added· Q1 2026 +$14M +572K Q1 2026
Data through Q1 2026 · filed Jun 3, 2026
15 of 392

Famous investor activity in Olin Corporation (OLN)

Olin Corporation (OLN) insider trading

Company insiders, action and economics first; trade and filed dates last.
Dates
Insider Title Type Price Qty Value Owned ΔOwn Trade date Filed date
Carter Deon · Officer 2 operations 0
Owned 5K Trade date Jun 17, 2026 Filed date Jun 18, 2026
Carter Deon Officer 2 operations 0 5K Jun 17, 2026 Jun 18, 2026
Carter Deon · Officer Tax withholding or exercise payment (F) -$15K
Price $24.13 Qty -609 Owned 2K Trade date Jun 17, 2026 Filed date Jun 18, 2026
Carter Deon Officer Tax withholding or exercise payment (F) $24.13 -609 -$15K 2K Jun 17, 2026 Jun 18, 2026
Kohl Florian J. · Officer 2 operations 0
Owned 2K Trade date Jun 1, 2026 Filed date Jun 3, 2026
Kohl Florian J. Officer 2 operations 0 2K Jun 1, 2026 Jun 3, 2026
Kohl Florian J. · Officer Tax withholding or exercise payment (F) -$13K
Price $25.67 Qty -492 Owned 8K Trade date Jun 1, 2026 Filed date Jun 3, 2026
Kohl Florian J. Officer Tax withholding or exercise payment (F) $25.67 -492 -$13K 8K Jun 1, 2026 Jun 3, 2026
Kohl Florian J. · Officer 2 operations 0
Owned 0 Trade date May 15, 2026 Filed date May 19, 2026
Kohl Florian J. Officer 2 operations 0 0 May 15, 2026 May 19, 2026
Kohl Florian J. · Officer Tax withholding or exercise payment (F) -$22K
Price $27.07 Qty -819 Owned 7K Trade date May 15, 2026 Filed date May 19, 2026
Kohl Florian J. Officer Tax withholding or exercise payment (F) $27.07 -819 -$22K 7K May 15, 2026 May 19, 2026
Piggott Julie A. · Director Grant (A) $200K
Price $28.48 Qty 7K Owned 21K Trade date May 1, 2026 Filed date May 5, 2026
Piggott Julie A. Director Grant (A) $28.48 7K $200K 21K May 1, 2026 May 5, 2026
Daly Edward · Director Grant (A) $200K
Price $28.48 Qty 7K Owned 17K Trade date May 1, 2026 Filed date May 5, 2026
Daly Edward Director Grant (A) $28.48 7K $200K 17K May 1, 2026 May 5, 2026
Shipp Earl L. · Director Grant (A) $200K
Price $28.48 Qty 7K Owned 59K Trade date May 1, 2026 Filed date May 5, 2026
Shipp Earl L. Director Grant (A) $28.48 7K $200K 59K May 1, 2026 May 5, 2026
Williams Carol A. · Director Grant (A) $200K
Price $28.48 Qty 7K Owned 59K Trade date May 1, 2026 Filed date May 5, 2026
Williams Carol A. Director Grant (A) $28.48 7K $200K 59K May 1, 2026 May 5, 2026
Darnall Matthew S. · Director Grant (A) $300K
Price $28.48 Qty 11K Owned 43K Trade date May 1, 2026 Filed date May 5, 2026
Darnall Matthew S. Director Grant (A) $28.48 11K $300K 43K May 1, 2026 May 5, 2026
Babcock Beverley A. · Director 2 operations $200K
Price $28.48 Qty 7K Owned 39K Trade date May 1, 2026 Filed date May 5, 2026
Babcock Beverley A. Director 2 operations $28.48 7K $200K 39K May 1, 2026 May 5, 2026
Weideman William H. · Director Grant (A) $200K
Price $28.48 Qty 7K Owned 54K Trade date May 1, 2026 Filed date May 5, 2026
Weideman William H. Director Grant (A) $28.48 7K $200K 54K May 1, 2026 May 5, 2026
Ehrhardt Marc · Officer 4 operations 0
Owned 8K Trade date May 1, 2026 Filed date May 5, 2026
Ehrhardt Marc Officer 4 operations 0 8K May 1, 2026 May 5, 2026
Ehrhardt Marc · Officer Tax withholding or exercise payment (F) -$53K
Price $28.48 Qty -2K Owned 26K Trade date May 1, 2026 Filed date May 5, 2026
Ehrhardt Marc Officer Tax withholding or exercise payment (F) $28.48 -2K -$53K 26K May 1, 2026 May 5, 2026
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Olin Corporation (OLN) activist and large shareholders

Dates
Owner/Filer identity Shares reported % of shares outstanding Filing date
BlackRock Inc. 12.0M
% of shares outstanding 10.2% Filing date Sep 10, 2024
BlackRock Inc. 12.0M 10.2% Sep 10, 2024
Vanguard Group Inc 12.1M
% of shares outstanding 10.1% Filing date Feb 12, 2024
Vanguard Group Inc 12.1M 10.1% Feb 12, 2024
FMR LLC 10.0M
% of shares outstanding 8.1% Filing date Feb 9, 2024
FMR LLC 10.0M 8.1% Feb 9, 2024
Hotchkis & Wiley Capital Management LLC 8.8M
% of shares outstanding 7.5% Filing date Nov 14, 2024
Hotchkis & Wiley Capital Management LLC 8.8M 7.5% Nov 14, 2024
Dimensional Fund Advisors LP 6.2M
% of shares outstanding 5.4% Filing date Jul 14, 2026
Dimensional Fund Advisors LP 6.2M 5.4% Jul 14, 2026
Vanguard Capital Management 5.9M
% of shares outstanding 5.2% Filing date Apr 30, 2026
Vanguard Capital Management 5.9M 5.2% Apr 30, 2026
Sachem Head Capital Management LP 6.5M
% of shares outstanding 4.7% Filing date Nov 15, 2022
Sachem Head Capital Management LP 6.5M 4.7% Nov 15, 2022
Fuller & Thaler Asset Management, Inc. 5.0M
% of shares outstanding 4.4% Filing date May 13, 2026
Fuller & Thaler Asset Management, Inc. 5.0M 4.4% May 13, 2026
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Olin Corporation (OLN) ownership FAQ

Who owns OLN?

392 reporting institutions disclosed OLN position changes in the Q1 2026 snapshot.

How is institutional activity calculated?

For each manager, WhoBought compares accepted consecutive 13F share counts. Share change is current shares minus prior shares. Estimated dollar change is that signed share change multiplied by the split-adjusted quarter-mean close. The activity table on this page uses Q1 2026.

What are activist and large shareholder filings?

An investor crossing 5% of a share class generally files Schedule 13D for activist intent or Schedule 13G for a passive position. The technical form names appear here rather than in the activity rows.

Where does this data come from?

Ownership and institutional activity come from SEC Form 13F filings. Insider activity comes from SEC Form 4, and large-shareholder activity from SEC Schedules 13D and 13G. FMP supplies price data only. Company logos use the local verified Parqet cache with one shared fallback.

Why are ownership reports delayed?

Form 13F is a quarterly disclosure and is normally filed after the quarter ends. Every ownership and activity value therefore names its represented period; it is not presented as a live position.

How are missing table values shown?

A muted dash marks a missing table value. It means the filing omitted the value, comparable data is unavailable, or no prior position exists for comparison.