OLNOlin Corporation

$14.89-37% 1Y
Latest close: a new 52-week lowOct 9, 2026what changed →

Who owns OLN

406 institutions reported holding OLN for 2026Q2, together 99% of the company, fewer than the 416 a quarter earlier.

406

Institutions reporting a position · as of 2026Q2 · down from 416 the quarter before

Shares held by institutions
113.1M

Shares held by institutions · 99% of the company · long US equity positions only, as reported on Form 13F

Reported value
$2.24B

Reported value · at Jun 30, 2026 prices, not today's

Top 5 holders
45%

Top 5 holders · of the whole company, between five filers

Details›
Reporting quarter2026-06-30
2026Q2
Quarters on record
53
New positions
70
Positions exited
79
Added to
122
Reduced
114
Top 10 holdersof the company
62%
Shares sold shortsettled Sep 15, 2026
12.9M
Short interestof shares outstanding
11%
Days to coverat the average daily volume
5.3
Change in the short positionsince the Aug 31, 2026 count
+12%
Institutional ownership by quarter, 2013Q2 to 2026Q2
QuarterFilersSharesReported value
2026Q2406113.1M$2.24B
2026Q1416111.8M$3.32B
2025Q4377106.2M$2.21B
2025Q3367103.1M$2.58B
2025Q2346104.1M$2.10B
2025Q1350100.8M$2.45B
2024Q4379103.8M$3.51B
2024Q3393102.5M$4.92B
2024Q2444104.4M$4.92B
2024Q1430105.2M$6.14B
2023Q4420105.9M$5.71B
2023Q3422106.4M$5.32B
2023Q2456109.4M$5.61B
2023Q1474111.2M$6.16B
2022Q4467115.5M$6.12B
2022Q3451121.7M$5.22B
Largest reported holders, 2026Q2
HolderShares% of companyValue
HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC16.0M14%$318M
BlackRock Inc.12.0M11%$238M
VANGUARD GROUP INC11.5M10%$228M
DIMENSIONAL FUND ADVISORS LP6.2M5.4%$122M
AQR CAPITAL MANAGEMENT LLC5.5M4.8%$109M
STATE STREET CORP4.8M4.2%$95M
FULLER & THALER ASSET MANAGEMENT, INC.4.3M3.8%$85M
YACKTMAN ASSET MANAGEMENT LP4.2M3.7%$83M
PZENA INVESTMENT MANAGEMENT LLC3.9M3.4%$77M
GOLDMAN SACHS GROUP INC2.6M2.2%$51M
Short interest by settlement date, Aug 29, 2025 to Sep 15, 2026
SettlementShares shortOf shares outstandingDays to cover
Sep 15, 202612.9M11%5.3
Aug 31, 202611.6M10%4.0
Aug 14, 202611.1M9.7%3.6
Jul 31, 202612.3M11%3.7
Jul 15, 202614.3M13%4.2
Jun 30, 202615.9M14%3.3
Jun 15, 202615.2M13%8.1
May 29, 202613.5M12%7.0
May 15, 202611.4M10%4.8
Apr 30, 202611.7M10%5.8
Apr 15, 202611.0M9.7%4.2
Mar 31, 202613.5M12%4.5

SEC Form 13F data sets (DERA bulk files). 13F is quarterly, filed up to 45 days late, and covers long US equity positions only, no shorts, no derivatives, nothing held below the reporting threshold. The short position is FINRA's consolidated count for each twice-monthly settlement date, as a share of shares outstanding.

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