OLIN CORP (OLN) is held by 169 institutional investors that disclose positions via SEC 13F filings. The largest disclosed holder is HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC as of Q1 2026.

Are institutions buying or selling OLN?

In Q1 2026, 110 institutions opened or increased positions in OLIN CORP while 64 reduced or exited — a net buying quarter.

What is the Smart Money Verdict on OLN?

The Smart Money Verdict combines four independent sources (institutional 13F activity, insider trades, activist filings, and congressional trades) into a single assessment for OLIN CORP.

How many hedge funds hold OLN?

169 institutional investors report holding OLIN CORP (OLN) as of Q1 2026, based on SEC 13F filings.

Is institutional money flowing into OLN?

As of Q1 2026, tracked institutions in OLIN CORP show 110 buyers versus 64 sellers — net inflows.

Are Congress members and hedge funds both buying OLN?

Yes — in the latest quarter, 1 members of Congress and 110 institutional investors bought OLIN CORP. HoldingsIntel cross-checks STOCK Act disclosures against 13F filings to surface these overlaps.

OLIN CORP

OLN·680665205·US·Common Stock·Basic Materials - Chemicals-13D/G

169

Holders

Avg rating(35 Elite)

$2.9B

Total Value

63% (187)

Fund Consensus

110 buying - 64 selling

Smart Money Verdict

View all

Held by 169 funds

35 elite

Who's Trading

Activist

Dimensional Fund Advisors LP5.4%Jul 14, 2026

Activist

Fuller & Thaler Asset Management, Inc.4.4%May 13, 2026

InsiderEMEhrhardt MarcExercise 3K shMay 1, 2026

InsiderEMEhrhardt MarcTax 2K shMay 1, 2026

InsiderEMEhrhardt MarcExercise 5K shMay 1, 2026

InsiderBABabcock Beverley AVest 2K shMay 1, 2026

Congress

Donald J. TrumpSale $15,001 - $50,000Jun 5, 2025

Congress

Donald J. TrumpBuy $15,001 - $50,000Apr 4, 2025

Congress

Donald J. TrumpSale $1,001 - $15,000Feb 6, 2025

Congress

Donald J. TrumpBuy $1,001 - $15,000Jan 6, 2025

View all insider trades View all activist filings View all congressional trades

13F: Mar 31, 2026Insider & Congress: Updated regularly

Fund	Action	Shares	Value	Weight	Est. P&L	Conviction
HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC	Decreased	15.1M(-1.3%)	$448.5M	1.4%	-42.90%	0
BlackRock, Inc.	Decreased	11.5M(-3.9%)	$341.5M	0.0%	-33.61%	0
DIMENSIONAL FUND ADVISORS LP	Increased	5.6M(+22.4%)	$167.3M	0.0%	-50.44%	37
VPVANGUARD PORTFOLIO MANAGEMENT LLC	New	5.4M	$161.7M	0.0%	-15.07%	42
VAVANGUARD CAPITAL MANAGEMENT LLC	New	5M	$149.8M	0.0%	-15.07%	42
FULLER & THALER ASSET MANAGEMENT, INC.	Decreased	5M(-14.7%)	$149.1M	0.5%	-16.20%	0
STATE STREET CORP	Increased	4.8M(+1.3%)	$142.7M	0.0%	-58.82%	31
PZENA INVESTMENT MANAGEMENT LLC	Decreased	4.4M(-1.7%)	$131.8M	0.4%	-18.57%	0
GOLDMAN SACHS GROUP INC	Increased	2.8M(+534.3%)	$84.3M	0.0%	-15.84%	48
GEODE CAPITAL MANAGEMENT, LLC	Increased	2.1M(+4.0%)	$62.8M	0.0%	-22.93%	31
BANK OF AMERICA CORP /DE/	Decreased	1.8M(-1.1%)	$52.7M	0.0%	-19.72%	0
MORGAN STANLEY	Decreased	1.7M(-9.3%)	$49.1M	0.0%	-38.11%	0
CITADEL ADVISORS LLC	Increased	1.6M(+98.3%)	$48.8M	0.0%	-11.42%	47
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	Increased	1.6M(+4.5%)	$46.3M	0.0%	-22.79%	31
Bank of New York Mellon Corp	Increased	1.2M(+1.0%)	$36.7M	0.0%	-35.43%	29
TWO SIGMA INVESTMENTS, LP	New	1.2M	$35.5M	0.0%	-15.07%	40
AQR CAPITAL MANAGEMENT LLC	Increased	1.2M(+89.2%)	$34.7M	0.0%	-26.85%	45
UBS Group AG	Increased	1.1M(+2.2%)	$33.4M	0.0%	-7.67%	29
MILLENNIUM MANAGEMENT LLC	Increased	1.1M(+2933.0%)	$31.7M	0.0%	-15.27%	47
NORTHERN TRUST CORP	Increased	989,256(+2.8%)	$29.4M	0.0%	-22.39%	30