Koppers Holdings Inc.
US ˙ NYSE ˙ US50060P1066

SecurityKOP / Koppers Holdings Inc.
InstitutionDynamic Technology Lab Private Ltd
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Dynamic Technology Lab Private Ltd closes position in KOP / Koppers Holdings Inc.

On May 15, 2026 - Dynamic Technology Lab Private Ltd filed a 13F-HR form disclosing ownership of 0 shares of Koppers Holdings Inc. (US:KOP) valued at $0 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 29,423 shares of Koppers Holdings Inc.. The current value of the position is $0 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)
2026-05-15 2026-03-31 13F KOPPERS HOLDINGS COM 50060P106 0 -100.00 0
2026-02-13 2025-12-31 13F KOPPERS HOLDINGS COM 50060P106 29,423 308 1.06 797 -2.21 0.1806
2025-11-13 2025-09-30 13F KOPPERS HOLDINGS COM 50060P106 29,115 1,995 7.36 815 -6.54 0.1380
2025-08-12 2025-06-30 13F KOPPERS HOLDINGS COM 50060P106 27,120 27,120 872 0.1185
2025-02-13 2024-12-31 13F KOPPERS HOLDINGS COM 50060P106 0 -37,671 -100.00 0 -100.00
2024-11-13 2024-09-30 13F KOPPERS HOLDINGS COM 50060P106 37,671 8,871 30.80 1,376 137,500.00 0.1457
2024-08-15 2024-06-30 13F KOPPERS HOLDINGS COM 50060P106 28,800 15,523 116.92 1 0.1203
2024-05-14 2024-03-31 13F KOPPERS HOLDINGS COM 50060P106 13,277 13,277 1 0.0782
2023-05-12 2023-03-31 13F KOPPERS HOLDINGS COM 50060P106 0 -13,700 -100.00 0 -100.00
2023-02-14 2022-12-31 13F KOPPERS HOLDINGS COM 50060P106 13,700 13,700 386 0.0386
2021-02-11 2020-12-31 13F KOPPERS HOLDINGS COM 50060P106 0 -18,040 -100.00 0 -100.00
2020-11-13 2020-09-30 13F KOPPERS HOLDINGS COM 50060P106 18,040 18,040 377 0.0607
2020-08-14 2020-06-30 13F KOPPERS HOLDINGS COM 50060P106 0 -14,860 -100.00 0 -100.00
2020-05-13 2020-03-31 13F KOPPERS HOLDINGS COM 50060P106 14,860 -4,334 -22.58 184 -74.93 0.0359
2020-02-14 2019-12-31 13F KOPPERS HOLDINGS COM 50060P106 19,194 6,582 52.19 734 99.46 0.1177
2019-11-14 2019-09-30 13F KOPPERS HOLDINGS COM 50060P106 12,612 -1,202 -8.70 368 -9.36 0.0646
2019-08-14 2019-06-30 13F KOPPERS HOLDINGS COM 50060P106 13,814 4,915 55.23 406 75.76 0.0683
2019-05-13 2019-03-31 13F KOPPERS HOLDINGS COM 50060P106 8,899 8,899 231 0.0379
2019-02-13 2018-12-31 13F KOPPERS HOLDINGS COM 50060P106 0 -7,600 -100.00 0 -100.00
2018-11-14 2018-09-30 13F KOPPERS HOLDINGS COM 50060P106 7,600 7,600 237 0.0329
2018-08-14 2018-06-30 13F KOPPERS HOLDINGS COM 50060P106 0 -12,215 -100.00 0 -100.00
2018-06-14 2018-03-31 13F/A-1 KOPPERS HOLDINGS COM 50060P106 12,215 12,215 502 0.0747
2018-05-14 2018-03-31 13F KOPPERS HOLDINGS COM 50060P106 12,215 12,215 502
2017-11-08 2017-09-30 13F KOPPERS HOLDINGS COM 50060P106 0 -14,770 -100.00 0 -100.00
2017-08-17 2017-06-30 13F KOPPERS HOLDINGS COM 50060P106 14,770 5,031 51.66 534 29.30 0.1008
2017-05-11 2017-03-31 13F KOPPERS HOLDINGS COM 50060P106 9,739 -1,717 -14.99 413 -10.61 0.0969
2017-02-13 2016-12-31 13F KOPPERS HOLDINGS COM 50060P106 11,456 11,456 462 0.1241
2016-05-18 2016-03-31 13F KOPPERS HOLDINGS COM 50060P106 0 -13,368 -100.00 0 -100.00
2016-02-11 2015-12-31 13F KOPPERS HOLDINGS COM 50060P106 13,368 177 1.34 244 -8.27 0.1045
2015-11-16 2015-09-30 13F KOPPERS HOLDINGS COM 50060P106 13,191 13,191 266 0.1449
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.