올린 주식회사
DE ˙ DB ˙ US6806652052
€21.64 ↓ -0.22 (-1.01%)
2026-06-04
주가
SecurityDE:OLN / Olin Corporation
InstitutionHarbor Advisors LLC
Latest Disclosed Ownership10,000 shares
Latest Disclosed Value $ 297,300
Harbor Advisors LLC ownership in OLN / Olin Corporation

On May 7, 2026 - Harbor Advisors LLC filed a 13F-HR form disclosing ownership of 10,000 shares of Olin Corporation (DE:OLN) valued at $252,000 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 30, 2026 disclosing 10,000 shares of Olin Corporation. This represents a change in shares of 0.00% during the quarter. The current value of the position is $216,400 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)
2026-05-07 2026-03-31 13F OLIN COM PAR $1 680665205 10,000 0 0.00 297 42.79 0.0430
2026-01-30 2025-12-31 13F OLIN COM PAR $1 680665205 10,000 0 0.00 208 -16.47 0.0313
2025-11-12 2025-09-30 13F OLIN COM PAR $1 680665205 10,000 0 0.00 250 24.50 0.0385
2025-08-13 2025-06-30 13F OLIN COM PAR $1 680665205 10,000 0 0.00 201 -17.36 0.0329
2025-05-15 2025-03-31 13F OLIN COM PAR $1 680665205 10,000 0 0.00 242 -28.40 0.0421
2025-02-11 2024-12-31 13F OLIN COM PAR $1 680665205 10,000 0 0.00 338 -29.44 0.0531
2024-11-14 2024-09-30 13F OLIN COM PAR $1 680665205 10,000 0 0.00 480 1.70 0.0803
2024-07-30 2024-06-30 13F OLIN COM PAR $1 680665205 10,000 0 0.00 472 -19.90 0.0865
2024-05-01 2024-03-31 13F OLIN COM PAR $1 680665205 10,000 0 0.00 588 9.09 0.1080
2024-02-01 2023-12-31 13F OLIN COM PAR $1 680665205 10,000 0 0.00 540 8.02 0.1032
2023-11-07 2023-09-30 13F OLIN COM PAR $1 680665205 10,000 0 0.00 500 -2.73 0.1071
2023-08-15 2023-06-30 13F/A-1 OLIN COM PAR $1 680665205 10,000 0 0.00 514 -7.57 0.1092
2023-08-01 2023-06-30 13F OLIN COM PAR $1 680665205 10,000 514
2023-05-11 2023-03-31 13F OLIN COM PAR $1 680665205 10,000 0 0.00 555 4.91 0.1299
2023-02-13 2022-12-31 13F OLIN COM PAR $1 680665205 10,000 0 0.00 529 23.31 0.1322
2022-11-07 2022-09-30 13F OLIN COM PAR $1 680665205 10,000 0 0.00 429 -7.34 0.1154
2022-08-05 2022-06-30 13F OLIN COM PAR $1 680665205 10,000 0 0.00 463 -11.47 0.1124
2022-05-16 2022-03-31 13F OLIN COM PAR $1 680665205 10,000 0 0.00 523 -9.04 0.1072
2022-02-14 2021-12-31 13F OLIN COM PAR $1 680665205 10,000 0 0.00 575 19.05 0.1069
2021-10-29 2021-09-30 13F OLIN COM PAR $1 680665205 10,000 0 0.00 483 4.32 0.0966
2021-08-03 2021-06-30 13F OLIN COM PAR $1 680665205 10,000 0 0.00 463 21.84 0.0916
2021-05-04 2021-03-31 13F OLIN COM PAR $1 680665205 10,000 0 0.00 380 54.47 0.0842
2021-02-11 2020-12-31 13F OLIN COM PAR $1 680665205 10,000 0 0.00 246 98.39 0.0551
2020-11-09 2020-09-30 13F OLIN COM PAR $1 680665205 10,000 0 0.00 124 7.83 0.0291
2020-08-03 2020-06-30 13F OLIN COM PAR $1 680665205 10,000 0 0.00 115 -1.71 0.0295
2020-05-21 2020-03-31 13F OLIN COM PAR $1 680665205 10,000 0 0.00 117 -32.37 0.0355
2020-02-13 2019-12-31 13F OLIN COM PAR $1 680665205 10,000 0 0.00 173 -7.49 0.0469
2019-11-13 2019-09-30 13F OLIN COM PAR $1 680665205 10,000 0 0.00 187 -14.61 0.0535
2019-08-14 2019-06-30 13F OLIN COM PAR $1 680665205 10,000 0 0.00 219 -5.19 0.0655
2019-05-15 2019-03-31 13F OLIN COM PAR $1 680665205 10,000 0 0.00 231 14.93 0.0745
2019-02-15 2018-12-31 13F OLIN COM PAR $1 680665205 10,000 0 0.00 201 -21.79 0.0782
2018-11-14 2018-09-30 13F OLIN COM PAR $1 680665205 10,000 0 0.00 257 -10.45 0.0798
2018-08-07 2018-06-30 13F OLIN COM PAR $1 680665205 10,000 0 0.00 287 -5.59 0.0924
2018-05-11 2018-03-31 13F OLIN COM PAR $1 680665205 10,000 0 0.00 304 -14.61 0.1024
2018-02-07 2017-12-31 13F OLIN COM PAR $1 680665205 10,000 0 0.00 356 3.79 0.1209
2017-10-26 2017-09-30 13F OLIN COM PAR $1 680665205 10,000 0 0.00 343 13.20 0.1256
2017-08-14 2017-06-30 13F OLIN COM PAR $1 680665205 10,000 0 0.00 303 -7.90 0.1199
2017-05-15 2017-03-31 13F OLIN COM PAR $1 680665205 10,000 0 0.00 329 28.52 0.1401
2017-01-30 2016-12-31 13F OLIN COM PAR $1 680665205 10,000 10,000 256 0.1228
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.