Olin OLN Institutional Ownership

NYSE OLN

$14.86 -0.29 (-1.91%)

As of: Oct 21, 2026 · 1:53 PM EDT

Institutions by Trading Activity

410 Institutions

Increased 214 52.2%

Unchanged 76 18.5%

Reduced 120 29.3%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

99.73%

▲+1.34 pp QoQ

Shares Held by Institutions

113.69Mn

of 114.00Mn outstanding

▲+1.45% QoQ

Shares Outstanding

114.00Mn

306.54K held outside 13F filers

Institutional Investors

410

filed 13F for Jun 2026

▼-9 vs prior quarter

Net Shares Added (QoQ)

+1.63Mn

accumulated since last quarter

Value of Holdings

$1.72Bn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Updated Oct 11, 2026

OLIN Corp (NYSE:OLN) was held by 410 institutional investors that filed 13F reports for the quarter ended June 30, 2026.

These investors held 99.73% of Olin's outstanding shares at the end of Q2 2026, up from 98.39% in Q1 2026.
Total holdings of OLN shares rose 1.45% from Q1 2026, and the holder count rose 16.81% from Q2 2025.
Of the 410 holders of OLN in Q2 2026, 214 added to their positions, 120 reduced their stakes and 76 left their positions unchanged.
In total, institutional investors held 113.69Mn shares of Olin at the end of Q2 2026, up 1.63Mn from the prior quarter and up 11.34Mn from a year earlier.
As of June 30, 2026, the biggest holder of Olin was Hotchkis & Wiley Capital Management LLC with 16.02Mn shares, or 14.05% of shares outstanding.
Holders that added the most shares of Olin in Q2 2026 were AQR Capital Management LLC (+4.34Mn shares), Captrust Financial Advisors (+1.3Mn shares), Hotchkis & Wiley Capital Management LLC (+936.99K shares), JPMorgan Chase & Co (+726.44K shares) and Citadel Advisors LLC (+593.3K shares).
The biggest cuts to OLN positions during Q2 2026 came from Millennium Management LLC (-984.37K shares), Fuller & Thaler Asset Management, Inc. (-714.29K shares), Two Sigma Investments, LP (-704.41K shares), Tudor Investment Corp (-631.72K shares) and D. E. Shaw & Co., Inc. (-562.22K shares).
According to Business Quant data, the leading holders of OLN for Q2 2026 were Hotchkis & Wiley Capital Management LLC (16.02Mn shares), BlackRock, Inc. (11.98Mn shares), Dimensional Fund Advisors LP (6.17Mn shares), AQR Capital Management LLC (5.51Mn shares), Vanguard Portfolio Management LLC (5.45Mn shares), Vanguard Capital Management LLC (5.14Mn shares), State Street Corp (4.8Mn shares), Fuller & Thaler Asset Management, Inc. (4.3Mn shares), Yacktman Asset Management LP (4.21Mn shares) and Pzena Investment Management LLC (3.89Mn shares).

Form 13F Holdings

412 Institutional Holders

Report period 30 Jun, 2026

Total shares held 113.69Mn

Of outstanding 99.73%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC	0001164833	16,021,214	14.05%	▲936,990	+6.21%	$317.54Mn
2	BlackRock, Inc.	0002012383	11,984,254	10.51%	▲497,398	+4.33%	$237.53Mn
3	DIMENSIONAL FUND ADVISORS LP	0000354204	6,166,477	5.41%	▲538,480	+9.57%	$122.23Mn
4	AQR CAPITAL MANAGEMENT LLC	0001167557	5,510,335	4.83%	▲4,344,109	+372.49%	$109.21Mn
5	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	5,447,478	4.78%	▲8,071	+0.15%	$107.97Mn
6	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	5,138,572	4.51%	▲99,604	+1.98%	$101.85Mn
7	State Street Corp	0000093751	4,799,788	4.21%	▼230	0.00%	$95.13Mn
8	FULLER & THALER ASSET MANAGEMENT, INC.	0001082327	4,301,590	3.77%	▼714,287	-14.24%	$85.26Mn
9	YACKTMAN ASSET MANAGEMENT LP	0000905567	4,209,403	3.69%	▲117,192	+2.86%	$83.43Mn
10	PZENA INVESTMENT MANAGEMENT LLC	0001027796	3,890,204	3.41%	▼541,409	-12.22%	$77.10Mn
11	Goldman Sachs Group Inc	0000886982	2,550,105	2.24%	▼286,078	-10.09%	$50.54Mn
12	CITADEL ADVISORS LLC	0001423053	2,233,816	1.96%	▲593,302	+36.17%	$44.27Mn
13	SEMPER AUGUSTUS INVESTMENTS GROUP LLC	0001115373	2,153,826	1.89%	▲124,507	+6.14%	$42.69Mn
14	GEODE CAPITAL MANAGEMENT, LLC	0001214717	2,107,148	1.85%	▼4,428	-0.21%	$41.78Mn
15	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	0000884546	1,543,162	1.35%	▼14,020	-0.90%	$30.59Mn
16	Morgan Stanley	0000895421	1,384,610	1.21%	▼267,057	-16.17%	$27.44Mn
17	CAPTRUST FINANCIAL ADVISORS	0001512024	1,321,951	1.16%	▲1,301,343	+6,314.75%	$26.20Mn
18	Bank Of America Corp /De/	0000070858	1,284,002	1.13%	▼490,007	-27.62%	$25.45Mn
19	Bank of New York Mellon Corp	0001390777	1,200,056	1.05%	▼32,856	-2.66%	$23.79Mn
20	Northern Trust Corp	0000073124	1,004,672	0.88%	▲15,416	+1.56%	$19.91Mn

Showing 1 to 20 of 412 holders