Olin Corporation
US ˙ NYSE ˙ US6806652052

SecurityOLN / Olin Corporation
InstitutionAmalgamated Bank
Latest Disclosed Ownership51,171 shares
Latest Disclosed Value $ 1,521
Amalgamated Bank reports 2.75% decrease in ownership of OLN / Olin Corporation

On May 8, 2026 - Amalgamated Bank filed a 13F-HR form disclosing ownership of 51,171 shares of Olin Corporation (US:OLN) valued at $1,521,314 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 52,618 shares of Olin Corporation. This represents a change in shares of -2.75% during the quarter. The current value of the position is $1,318,165 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)
2026-05-08 2026-03-31 13F OLIN COM 680665205 51,171 -1,447 -2.75 2 0.00 0.0116
2026-02-05 2025-12-31 13F OLIN COM 680665205 52,618 -12 -0.02 1 0.00 0.0079
2025-10-29 2025-09-30 13F OLIN COM 680665205 52,630 18 0.03 1 0.00 0.0094
2025-08-04 2025-06-30 13F OLIN COM 680665205 52,612 -1,198 -2.23 1 0.00 0.0082
2025-04-25 2025-03-31 13F OLIN COM 680665205 53,810 -2,185 -3.90 1 0.00 0.0112
2025-02-04 2024-12-31 13F OLIN COM 680665205 55,995 -134 -0.24 2 -50.00 0.0155
2024-10-30 2024-09-30 13F OLIN COM 680665205 56,129 -18,715 -25.01 3 -33.33 0.0222
2024-08-12 2024-06-30 13F OLIN COM 680665205 74,844 -8,482 -10.18 4 -25.00 0.0301
2024-04-23 2024-03-31 13F OLIN COM 680665205 83,326 -3,346 -3.86 5 0.00 0.0419
2024-02-06 2023-12-31 13F OLIN COM 680665205 86,672 552 0.64 5 0.00 0.0373
2023-11-08 2023-09-30 13F OLIN COM 680665205 86,120 6,844 8.63 4 0.00 0.0366
2023-08-11 2023-06-30 13F OLIN COM 680665205 79,276 -5,786 -6.80 4 0.00 0.0330
2023-05-02 2023-03-31 13F OLIN COM 680665205 85,062 -29,098 -25.49 5 -33.33 0.0402
2023-02-10 2022-12-31 13F OLIN COM 680665205 114,160 17,280 17.84 6 -99.86 0.0539
2022-11-09 2022-09-30 13F OLIN COM 680665205 96,880 -19,561 -16.80 4,154 -22.92 0.0401
2022-08-15 2022-06-30 13F OLIN COM 680665205 116,441 17,614 17.82 5,389 4.30 0.0502
2022-08-25 2022-03-31 13F/A-1 OLIN COM 680665205 98,827 -3,274 -3.21 5,167 -12.02 0.0401
2022-06-30 2022-03-31 13F OLIN COM 680665205 98,827 -3,274 5,167 0.0410
2022-02-15 2021-12-31 13F/A-1 OLIN COM 680665205 102,101 -5,312 -4.95 5,873 13.31 0.0433
2022-02-15 2021-12-31 13F OLIN COM 680665205 102,101 -5,312 5,873 0.0433
2021-10-29 2021-09-30 13F OLIN COM 680665205 107,413 -10,000 -8.52 5,183 -4.58 0.0438
2021-08-16 2021-06-30 13F OLIN COM 680665205 117,413 100,752 604.72 5,432 758.14 0.0435
2021-05-13 2021-03-31 13F OLIN COM 680665205 16,661 -1,167 -6.55 633 44.52 0.0237
2021-02-12 2020-12-31 13F OLIN COM 680665205 17,828 54 0.30 438 99.09 0.0166
2020-10-30 2020-09-30 13F OLIN COM 680665205 17,774 -95 -0.53 220 7.32 0.0096
2020-08-10 2020-06-30 13F OLIN COM 680665205 17,869 -16,670 -48.26 205 -49.13 0.0095
2020-05-13 2020-03-31 13F OLIN COM 680665205 34,539 -967 -2.72 403 -34.15 0.0099
2020-02-13 2019-12-31 13F OLIN COM 680665205 35,506 2,864 8.77 612 0.16 0.0113
2019-11-13 2019-09-30 13F OLIN COM 680665205 32,642 -469 -1.42 611 -15.72 0.0128
2019-08-14 2019-06-30 13F OLIN COM 680665205 33,111 1,022 3.18 725 -2.42 0.0169
2019-05-15 2019-03-31 13F OLIN COM 680665205 32,089 876 2.81 743 18.31 0.0180
2019-02-15 2018-12-31 13F OLIN COM 680665205 31,213 -521 -1.64 628 -22.94 0.0178
2018-11-14 2018-09-30 13F OLIN COM 680665205 31,734 -67 -0.21 815 -10.73 0.0202
2018-07-18 2018-06-30 13F OLIN COM 680665205 31,801 297 0.94 913 -4.60 0.0223
2018-05-22 2018-03-31 13F OLIN COM 680665205 31,504 -263 -0.83 957 -15.31 0.0254
2018-02-13 2017-12-31 13F OLIN COM 680665205 31,767 1,930 6.47 1,130 10.57 0.0306
2017-11-09 2017-09-30 13F OLIN COM 680665205 29,837 -1,599 -5.09 1,022 7.35 0.0318
2017-08-10 2017-06-30 13F OLIN COM 680665205 31,436 9,767 45.07 952 33.71 0.0312
2017-05-12 2017-03-31 13F OLIN COM 680665205 21,669 -8 -0.04 712 28.29 0.0354
2017-02-14 2016-12-31 13F OLIN COM 680665205 21,677 2,689 14.16 555 42.31 0.0251
2016-11-15 2016-09-30 13F/A-1 OLIN COM 680665205 18,988 58 0.31 390 -0.26 0.0226
2016-08-16 2016-06-30 13F OLIN COM 680665205 18,930 614 3.35 391 22.96 0.0226
2016-05-11 2016-03-31 13F OLIN COM 680665205 18,316 1,648 9.89 318 10.42 0.0310
2016-02-10 2015-12-31 13F OLIN COM 680665205 16,668 16,668 0.00 288 0.0355
2015-11-04 2015-09-30 13F OLIN COM 680665205 0 -8,368 -100.00 0 -100.00
2015-07-10 2015-06-30 13F OLIN COM 680665205 8,368 8,368 226 0.0222
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.