Olin Corporation
US ˙ NYSE ˙ US6806652052

SecurityOLN / Olin Corporation
InstitutionHighTower Advisors, LLC
Latest Disclosed Ownership19,913 shares
Latest Disclosed Value $ 592,009
HighTower Advisors, LLC reports 67.77% increase in ownership of OLN / Olin Corporation

On May 5, 2026 - HighTower Advisors, LLC filed a 13F-HR form disclosing ownership of 19,913 shares of Olin Corporation (US:OLN) valued at $592,013 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 11,869 shares of Olin Corporation. This represents a change in shares of 67.77% during the quarter. The current value of the position is $496,431 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-05 2026-03-31 13F OLIN COM PAR $1 680665205 19,913 8,044 67.77 592 139.68 0.0006
2026-02-06 2025-12-31 13F OLIN COM PAR $1 680665205 11,869 3,832 47.68 247 23.50 0.0003
2025-11-07 2025-09-30 13F OLIN COM PAR $1 680665205 8,037 8,037 201 0.0002
2025-08-11 2025-06-30 13F OLIN COM PAR $1 680665205 0 -11,664 -100.00 0 -100.00
2025-05-13 2025-03-31 13F OLIN COM PAR $1 680665205 11,664 -342 -2.85 283 -30.37 0.0004
2025-02-07 2024-12-31 13F OLIN COM PAR $1 680665205 12,006 3,692 44.41 406 2.02 0.0006
2024-11-14 2024-09-30 13F OLIN COM PAR $1 680665205 8,314 -3,945 -32.18 397 -31.67 0.0006
2024-08-13 2024-06-30 13F OLIN COM PAR $1 680665205 12,259 -431 -3.40 581 -22.12 0.0009
2024-05-06 2024-03-31 13F OLIN COM PAR $1 680665205 12,690 1,912 17.74 746 27.96 0.0012
2024-02-12 2023-12-31 13F OLIN COM PAR $1 680665205 10,778 -819 -7.06 583 0.34 0.0010
2023-11-08 2023-09-30 13F OLIN COM PAR $1 680665205 11,597 635 5.79 581 1.93 0.0011
2023-08-14 2023-06-30 13F OLIN COM PAR $1 680665205 10,962 3,564 48.18 570 39.36 0.0011
2023-05-12 2023-03-31 13F OLIN COM PAR $1 680665205 7,398 -1,687 -18.57 409 -14.44 0.0009
2023-02-09 2022-12-31 13F OLIN COM PAR $1 680665205 9,085 675 8.03 478 33.15 0.0011
2022-11-09 2022-09-30 13F OLIN COM PAR $1 680665205 8,410 492 6.21 359 -2.18 0.0010
2022-08-10 2022-06-30 13F OLIN COM PAR $1 680665205 7,918 158 2.04 367 -9.83 0.0009
2022-05-12 2022-03-31 13F OLIN COM PAR $1 680665205 7,760 728 10.35 407 0.74 0.0009
2022-02-10 2021-12-31 13F OLIN COM PAR $1 680665205 7,032 42 0.60 404 18.82 0.0009
2021-11-12 2021-09-30 13F OLIN COM PAR $1 680665205 6,990 1,767 33.83 340 40.50 0.0009
2021-08-06 2021-06-30 13F OLIN COM PAR $1 680665205 5,223 -2,707 -34.14 242 -19.60 0.0007
2021-05-10 2021-03-31 13F OLIN COM PAR $1 680665205 7,930 -2,355 -22.90 301 18.97 0.0010
2021-02-10 2020-12-31 13F OLIN COM PAR $1 680665205 10,285 -1,226 -10.65 253 75.69 0.0011
2020-11-13 2020-09-30 13F OLIN COM PAR $1 680665205 11,511 -150 -1.29 144 8.27 0.0007
2020-08-10 2020-06-30 13F OLIN COM PAR $1 680665205 11,661 0 0.00 133 -1.48 0.0007
2020-05-21 2020-03-31 13F OLIN COM PAR $1 680665205 11,661 11,661 0.00 135 1.50 0.0009
2019-08-13 2019-06-30 13F OLIN COM PAR $1 680665205 0 -51,437 -100.00 0 -100.00
2019-05-15 2019-03-31 13F OLIN COM PAR $1 680665205 51,437 51,437 1,187 0.0079
2019-02-14 2018-12-31 13F OLIN COM PAR $1 680665205 0 -29,117 -100.00 0 -100.00
2018-11-09 2018-09-30 13F OLIN COM PAR $1 680665205 29,117 18,175 166.10 748 138.22 0.0054
2018-08-14 2018-06-30 13F OLIN COM PAR $1 680665205 10,942 10,942 -62.42 314 -58.02 0.0025
2017-11-14 2017-09-30 13F OLIN COM PAR $1 680665205 0 -6,797 -100.00 0 -100.00
2017-09-22 2017-06-30 13F/A-1 OLIN COM PAR $1 680665205 6,797 -3,739 -35.49 205 -41.43 0.0018
2017-08-14 2017-06-30 13F OLIN COM PAR $1 680665205 6,797 -3,739 205
2017-05-15 2017-03-31 13F OLIN COM PAR $1 680665205 10,536 2,466 30.56 350 69.08 0.0033
2017-02-10 2016-12-31 13F OLIN COM PAR $1 680665205 8,070 -3,446 -29.92 207 -12.29 0.0022
2016-11-14 2016-09-30 13F OLIN COM PAR $1 680665205 11,516 3,221 38.83 236 14.56 0.0027
2016-08-11 2016-06-30 13F OLIN COM PAR $1 680665205 8,295 -37,610 -81.93 206 -74.15 0.0026
2016-05-16 2016-03-31 13F OLIN COM PAR $1 680665205 45,905 11,967 35.26 797 36.01 0.0026
2016-05-18 2015-12-31 13F/A-1 OLIN COM PAR $1 680665205 33,938 9,521 38.99 586 42.58 0.0070
2016-02-12 2015-12-31 13F OLIN COM PAR $1 680665205 33,938 586
2015-11-16 2015-09-30 13F OLIN COM PAR $1 680665205 24,417 3,086 14.47 411 -28.52 0.0054
2015-08-11 2015-06-30 13F OLIN COM PAR $1 680665205 21,331 14,343 205.25 575 156.70 0.0092
2015-05-15 2015-03-31 13F OLIN COM PAR $1 680665205 6,988 6,988 -67.24 224 -61.04 0.0033
2015-02-17 2014-12-31 13F OLIN COM PAR $1 680665205 0 -55,492 -100.00 0 -100.00
2014-11-14 2014-09-30 13F OLIN COM PAR $1 680665205 55,492 22,568 68.55 1,412 59.37 0.0239
2014-08-13 2014-06-30 13F OLIN COM PAR $1 680665205 32,924 6,939 26.70 886 23.06 0.0154
2014-05-15 2014-03-31 13F OLIN COM PAR $1 680665205 25,985 25,985 720 0.0140
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.