Olin Corporation
US ˙ NYSE ˙ US6806652052

SecurityOLN / Olin Corporation
InstitutionFirst Trust Advisors Lp
Latest Disclosed Ownership713,041 shares
Latest Disclosed Value $ 21,198,723
First Trust Advisors Lp reports 80.77% increase in ownership of OLN / Olin Corporation

On May 13, 2026 - First Trust Advisors Lp filed a 13F-HR form disclosing ownership of 713,041 shares of Olin Corporation (US:OLN) valued at $21,198,709 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 394,453 shares of Olin Corporation. This represents a change in shares of 80.77% during the quarter. The current value of the position is $17,776,112 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)
2026-05-13 2026-03-31 13F OLIN COM PAR $1 680665205 713,041 318,588 80.77 21,199 158.01 0.0151
2026-02-13 2025-12-31 13F OLIN COM PAR $1 680665205 394,453 -128,639 -24.59 8,216 -37.15 0.0060
2025-11-12 2025-09-30 13F OLIN COM PAR $1 680665205 523,092 60,925 13.18 13,072 40.80 0.0097
2025-08-13 2025-06-30 13F OLIN COM PAR $1 680665205 462,167 74,739 19.29 9,285 -1.14 0.0075
2025-05-14 2025-03-31 13F OLIN COM PAR $1 680665205 387,428 120,785 45.30 9,391 4.21 0.0083
2025-02-13 2024-12-31 13F OLIN COM PAR $1 680665205 266,643 -75,333 -22.03 9,013 -45.08 0.0079
2024-11-13 2024-09-30 13F OLIN COM PAR $1 680665205 341,976 8,948 2.69 16,408 4.50 0.0156
2024-08-13 2024-06-30 13F OLIN COM PAR $1 680665205 333,028 -54,533 -14.07 15,702 -31.10 0.0160
2024-05-13 2024-03-31 13F OLIN COM PAR $1 680665205 387,561 -5,677 -1.44 22,789 7.41 0.0231
2024-02-13 2023-12-31 13F OLIN COM PAR $1 680665205 393,238 -74,440 -15.92 21,215 -9.24 0.0231
2023-11-13 2023-09-30 13F OLIN COM PAR $1 680665205 467,678 2,158 0.46 23,375 -2.29 0.0277
2023-08-14 2023-06-30 13F OLIN COM PAR $1 680665205 465,520 -665,682 -58.85 23,923 -61.89 0.0272
2023-05-15 2023-03-31 13F OLIN COM PAR $1 680665205 1,131,202 -3,707 -0.33 62,782 4.49 0.0725
2023-02-09 2022-12-31 13F OLIN COM PAR $1 680665205 1,134,909 41,219 3.77 60,082 28.11 0.0714
2022-11-14 2022-09-30 13F OLIN COM PAR $1 680665205 1,093,690 -445,347 -28.94 46,897 -34.16 0.0608
2022-08-12 2022-06-30 13F OLIN COM PAR $1 680665205 1,539,037 148,375 10.67 71,227 -2.03 0.0879
2022-05-13 2022-03-31 13F OLIN COM PAR $1 680665205 1,390,662 760,691 120.75 72,704 100.64 0.0744
2022-02-08 2021-12-31 13F OLIN COM PAR $1 680665205 629,971 -10,428 -1.63 36,236 17.27 0.0353
2021-11-15 2021-09-30 13F OLIN COM PAR $1 680665205 640,399 346,183 117.66 30,899 127.03 0.0332
2021-10-12 2021-06-30 13F/A-1 OLIN COM PAR $1 680665205 294,216 208,270 242.33 13,610 317.10 0.0147
2021-08-16 2021-06-30 13F OLIN COM PAR $1 680665205 294,216 208,270 13,610 0.0140
2021-05-14 2021-03-31 13F OLIN COM PAR $1 680665205 85,946 -656,675 -88.43 3,263 -82.11 0.0040
2021-02-02 2020-12-31 13F OLIN COM PAR $1 680665205 742,621 298,889 67.36 18,239 232.04 0.0242
2020-11-05 2020-09-30 13F OLIN COM PAR $1 680665205 443,732 222,517 100.59 5,493 116.09 0.0088
2020-07-22 2020-06-30 13F OLIN COM PAR $1 680665205 221,215 -246,079 -52.66 2,542 -53.38 0.0044
2020-05-06 2020-03-31 13F OLIN COM PAR $1 680665205 467,294 -56,231 -10.74 5,453 -39.62 0.0124
2020-02-03 2019-12-31 13F OLIN COM PAR $1 680665205 523,525 112,810 27.47 9,031 17.45 0.0154
2019-11-04 2019-09-30 13F OLIN COM PAR $1 680665205 410,715 25,604 6.65 7,689 -8.88 0.0145
2019-07-30 2019-06-30 13F OLIN COM PAR $1 680665205 385,111 -10,383 -2.63 8,438 -7.80 0.0159
2019-06-19 2019-03-31 13F/A-1 OLIN COM PAR $1 680665205 395,494 -77,636 -16.41 9,152 -3.82 0.0182
2019-05-09 2019-03-31 13F OLIN COM PAR $1 680665205 395,494 -77,636 9,152
2019-02-07 2018-12-31 13F OLIN COM PAR $1 680665205 473,130 83,889 21.55 9,515 -4.81 0.0226
2018-10-25 2018-09-30 13F OLIN COM PAR $1 680665205 389,241 35,778 10.12 9,996 -1.53 0.0186
2018-08-02 2018-06-30 13F OLIN COM PAR $1 680665205 353,463 248,888 238.00 10,151 219.41 0.0210
2018-04-23 2018-03-31 13F OLIN COM PAR $1 680665205 104,575 9,425 9.91 3,178 -6.12 0.0073
2018-02-08 2017-12-31 13F OLIN COM PAR $1 680665205 95,150 -116,414 -55.03 3,385 -53.28 0.0081
2017-10-24 2017-09-30 13F OLIN COM PAR $1 680665205 211,564 106,444 101.26 7,246 127.65 0.0186
2017-08-02 2017-06-30 13F OLIN COM PAR $1 680665205 105,120 -97,827 -48.20 3,183 -52.29 0.0085
2017-05-02 2017-03-31 13F OLIN COM PAR $1 680665205 202,947 -138,715 -40.60 6,671 -23.76 0.0185
2017-02-06 2016-12-31 13F OLIN COM PAR $1 680665205 341,662 18,977 5.88 8,750 32.16 0.0260
2016-11-01 2016-09-30 13F OLIN COM PAR $1 680665205 322,685 -18,614 -5.45 6,621 -21.90 0.0198
2016-08-04 2016-06-30 13F OLIN COM PAR $1 680665205 341,299 -57,396 -14.40 8,478 22.43 0.0267
2016-05-10 2016-03-31 13F OLIN COM PAR $1 680665205 398,695 85,116 27.14 6,925 27.96 0.0222
2016-05-04 2015-12-31 13F/A-1 OLIN COM PAR $1 680665205 313,579 170,878 119.75 5,412 125.59 0.0140
2016-02-03 2015-12-31 13F OLIN COM PAR $1 680665205 313,579 5,412
2015-11-05 2015-09-30 13F OLIN COM PAR $1 680665205 142,701 54,730 62.21 2,399 1.18 0.0069
2015-08-04 2015-06-30 13F OLIN COM PAR $1 680665205 87,971 -135,193 -60.58 2,371 -66.84 0.0062
2015-05-04 2015-03-31 13F OLIN COM PAR $1 680665205 223,164 -19,890 -8.18 7,150 29.20 0.0210
2015-02-13 2014-12-31 13F OLIN COM PAR $1 680665205 243,054 -6,555 -2.63 5,534 -12.20 0.0187
2014-11-12 2014-09-30 13F OLIN COM PAR $1 680665205 249,609 23,390 10.34 6,303 3.50 0.0248
2014-08-11 2014-06-30 13F OLIN COM PAR $1 680665205 226,219 18,964 9.15 6,090 6.43 0.0253
2014-05-12 2014-03-31 13F OLIN COM PAR $1 680665205 207,255 -50,161 -19.49 5,722 -22.95 0.0251
2014-08-08 2013-12-31 13F/A-1 OLIN COM PAR $1 680665205 257,416 154,759 150.75 7,426 213.60 0.0360
2014-02-13 2013-12-31 13F OLIN COM PAR $1 680665205 257,416 7,426
2013-11-12 2013-09-30 13F OLIN COM PAR $1 680665205 102,657 13,966 15.75 2,368 11.65 0.0128
2013-08-12 2013-06-30 13F OLIN COM PAR $1 680665205 88,691 88,691 2,121 0.0138
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.