Olin Corporation
US ˙ NYSE ˙ US6806652052

SecurityOLN / Olin Corporation
InstitutionKBC Group NV
Latest Disclosed Ownership4,182 shares
Latest Disclosed Value $ 124
KBC Group NV ownership in OLN / Olin Corporation

On May 7, 2026 - KBC Group NV filed a 13F-HR form disclosing ownership of 4,182 shares of Olin Corporation (US:OLN) valued at $124,331 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 4,182 shares of Olin Corporation. The current value of the position is $107,728 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-07 2026-03-31 13F OLIN COM PAR $1 680665205 4,182 0 0.00 0 0.0002
2026-01-26 2025-12-31 13F OLIN COM PAR $1 680665205 4,182 0 0.00 0 0.0002
2026-01-20 2025-09-30 13F OLIN COM PAR $1 680665205 4,182 0 0.00 0 0.0003
2025-08-08 2025-06-30 13F OLIN COM PAR $1 680665205 4,182 -1,568 -27.27 0 0.0002
2025-04-25 2025-03-31 13F OLIN COM PAR $1 680665205 5,750 289 5.29 0 0.0004
2025-01-22 2024-12-31 13F OLIN COM PAR $1 680665205 5,461 2,476 82.95 0 0.0005
2024-11-06 2024-09-30 13F OLIN COM PAR $1 680665205 2,985 -2 -0.07 0 0.0004
2024-07-17 2024-06-30 13F OLIN COM PAR $1 680665205 2,987 -578 -16.21 0 0.0004
2024-05-08 2024-03-31 13F OLIN COM PAR 1 680665205 3,565 971 37.43 0 0.0007
2024-02-13 2023-12-31 13F OLIN COM PAR $1 680665205 2,594 161 6.62 0 0.0005
2024-02-15 2023-09-30 13F/A-1 OLIN COM PAR $1 680665205 2,433 2,011 476.54 0 0.0005
2023-11-22 2023-09-30 13F OLIN COM PAR $1 680665205 422 0 0 0.0001
2024-02-15 2023-06-30 13F/A-1 OLIN COM PAR $1 680665205 422 -69 -14.05 0 0.0001
2023-07-28 2023-06-30 13F OLIN COM PAR $1 680665205 422 -69 0 0.0001
2024-02-14 2023-03-31 13F/A-1 OLIN COM PAR $1 680665205 491 0 0.00 0 0.0001
2023-05-04 2023-03-31 13F OLIN COM PAR $1 680665205 491 -11,363 0 0.0001
2024-02-14 2022-12-31 13F/A-1 OLIN COM PAR $1 680665205 491 -11,363 -95.86 0 0.0001
2023-02-13 2022-12-31 13F OLIN COM PAR $1 680665205 11,854 0 1 0.0000
2024-02-15 2022-09-30 13F/A-1 OLIN COM PAR $1 680665205 11,854 11,496 3,211.17 1 0.0026
2022-11-08 2022-09-30 13F OLIN COM PAR $1 680665205 11,854 11,496 508 0.0027
2024-02-14 2022-06-30 13F/A-1 OLIN COM PAR $1 680665205 358 358 0 0.0001
2022-07-26 2022-06-30 13F OLIN COM PAR $1 680665205 358 358 17 0.0001
2017-02-16 2016-12-31 13F OLIN COM PAR $1 680665205 0 -564 -100.00 0 -100.00
2016-11-03 2016-09-30 13F OLIN COM PAR $1 680665205 564 0 0.00 12 -14.29 0.0001
2016-08-03 2016-06-30 13F OLIN COM PAR $1 680665205 564 0 0.00 14 40.00 0.0002
2016-05-11 2016-03-31 13F OLIN COM PAR $1 680665205 564 0 0.00 10 0.00 0.0002
2016-02-11 2015-12-31 13F OLIN COM PAR $1 680665205 564 564 0.00 10 0.0002
2015-02-12 2014-12-31 13F OLIN COM PAR $1 680665205 0 -9,760 -100.00 0 -100.00
2014-10-16 2014-09-30 13F OLIN COM PAR $1 680665205 9,760 9,760 246 0.0086
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.