OLN OLIN CORP

COM PAR $1 (common), issuer CIK 74303

409 managers (423 13F filers) reported a position in OLN shares at 2026-03-31, 112,588,682 shares in all. 99 filers opened a position and 59 filers sold out during the quarter.

Managers: 409
13F filers: 423
New: 99
Added: 150
Reduced: 85
Sold out: 59
Shares held by filers: 112,588,682

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

Holder	Shares	Value	% of portfolio	Change	Source
BARTLETT & CO. WEALTH MANAGEMENT LLC	5	$143	<0.01%	new	13F-HR Timeline
Vermillion Wealth Management, Inc.	4	$119	<0.01%	new	13F-HR Timeline
Cassaday & Co Wealth Management LLC	4	$119	<0.01%	new	13F-HR Timeline
3 FACTOR INDEXING, LLC	3	$90	<0.01%		13F-HR Timeline
CURIO WEALTH, LLC	3	$89	<0.01%	new	13F-HR Timeline
RAFFA WEALTH MANAGEMENT, LLC	2	$59	<0.01%	new	13F-HR Timeline
Valued Wealth Advisors LLC	1	$32	<0.01%	0	13F-HR Timeline
Capital Advisors, Ltd. LLC	4	$0	0%	new	13F-HR TimelineValue filed as zero, left out of ratios.
Erste Asset Management GmbHin group Erste Asset Management GmbH	0	$0	0%	0	13F-HR Timeline GroupValue filed as zero, left out of ratios. Amount filed as zero, left out of ratios.