Koppers Holdings Inc.
DE ˙ DB ˙ US50060P1066
34,20 € ↑0,40 (1,18%)
2026-06-01
AKTIENPREIS
SecurityDE:KO9 / Koppers Holdings Inc.
InstitutionMorgan Stanley
Latest Disclosed Ownership221,536 shares
Latest Disclosed Value $ 8,569,065
Morgan Stanley reports 5.53% increase in ownership of KO9 / Koppers Holdings Inc.

On May 15, 2026 - Morgan Stanley filed a 13F-HR form disclosing ownership of 221,536 shares of Koppers Holdings Inc. (DE:KO9) valued at $7,177,766 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on May 27, 2026 disclosing 209,928 shares of Koppers Holdings Inc.. This represents a change in shares of 5.53% during the quarter. The current value of the position is $7,576,531 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 221,536 11,608 5.53 8,569 50.76 0.0005
2026-05-27 2025-12-31 13F/A-1 KOPPERS HOLDINGS COM 50060P106 209,928 -10,235 -4.65 5,685 -7.79 0.0000
2026-02-13 2025-12-31 13F KOPPERS HOLDINGS COM 50060P106 209,928 -10,235 5,685 0.0003
2026-05-27 2025-09-30 13F/A-1 KOPPERS HOLDINGS COM 50060P106 220,163 -37,515 -14.56 6,165 -25.59 0.0004
2025-11-14 2025-09-30 13F KOPPERS HOLDINGS COM 50060P106 220,163 -37,515 6,165 0.0004
2025-08-15 2025-06-30 13F KOPPERS HOLDINGS COM 50060P106 257,678 8,249 3.31 8,284 18.61 0.0005
2025-05-15 2025-03-31 13F KOPPERS HOLDINGS COM 50060P106 249,429 -29,716 -10.65 6,984 -22.78 0.0005
2025-05-15 2024-12-31 13F/A-1 KOPPERS HOLDINGS COM 50060P106 279,145 30,095 12.08 9,044 -0.58 0.0006
2025-02-14 2024-12-31 13F KOPPERS HOLDINGS COM 50060P106 279,145 30,095 9,044 0.0006
2025-05-14 2024-09-30 13F/A-2 KOPPERS HOLDINGS COM 50060P106 249,050 -42,852 -14.68 9,098 -15.75 0.0007
2025-02-14 2024-09-30 13F/A-1 KOPPERS HOLDINGS COM 50060P106 249,050 -42,852 9,098 0.0007
2024-11-14 2024-09-30 13F KOPPERS HOLDINGS COM 50060P106 249,050 -42,852 9,098 0.0001
2025-05-14 2024-06-30 13F/A-2 KOPPERS HOLDINGS COM 50060P106 291,902 -80,070 -21.53 10,798 -47.39 0.0008
2024-10-17 2024-06-30 13F/A-1 KOPPERS HOLDINGS COM 50060P106 291,902 -80,070 10,798 0.0008
2024-08-14 2024-06-30 13F KOPPERS HOLDINGS COM 50060P106 291,902 -80,070 10,798 0.0008
2024-10-17 2024-03-31 13F/A-2 KOPPERS HOLDINGS COM 50060P106 371,972 -102,930 -21.67 20,522 -15.63 0.0016
2024-08-16 2024-03-31 13F/A-1 KOPPERS HOLDINGS COM 50060P106 371,972 -102,930 20,522 0.0002
2024-05-15 2024-03-31 13F KOPPERS HOLDINGS COM 50060P106 371,972 -102,930 20,522 0.0016
2024-08-16 2023-12-31 13F/A-1 KOPPERS HOLDINGS COM 50060P106 474,902 166,146 53.81 24,325 99.20 0.0021
2024-02-13 2023-12-31 13F KOPPERS HOLDINGS COM 50060P106 474,902 166,146 24,325 0.0021
2023-11-15 2023-09-30 13F KOPPERS HOLDINGS COM 50060P106 308,756 76,796 33.11 12,211 54.39 0.0012
2023-08-14 2023-06-30 13F KOPPERS HOLDINGS COM 50060P106 231,960 -963 -0.41 7,910 -2.90 0.0008
2023-05-15 2023-03-31 13F KOPPERS HOLDINGS COM 50060P106 232,923 25,980 12.55 8,145 39.59 0.0009
2023-02-14 2022-12-31 13F KOPPERS HOLDINGS COM 50060P106 206,943 -30,221 -12.74 5,836 18.41 0.0007
2022-11-14 2022-09-30 13F KOPPERS HOLDINGS COM 50060P106 237,164 -33,907 -12.51 4,928 -19.70 0.0007
2022-10-27 2022-06-30 13F/A-1 KOPPERS HOLDINGS COM 50060P106 271,071 148,011 120.28 6,137 81.25 0.0008
2022-08-15 2022-06-30 13F KOPPERS HOLDINGS COM 50060P106 271,071 148,011 6,137 0.0008
2022-10-27 2022-03-31 13F/A-1 KOPPERS HOLDINGS COM 50060P106 123,060 28,956 30.77 3,386 14.97 0.0005
2022-05-13 2022-03-31 13F KOPPERS HOLDINGS COM 50060P106 123,060 28,956 3,386 0.0005
2022-02-14 2021-12-31 13F KOPPERS HOLDINGS COM 50060P106 94,104 10,991 13.22 2,945 13.31 0.0004
2021-11-15 2021-09-30 13F KOPPERS HOLDINGS COM 50060P106 83,113 -31,813 -27.68 2,599 -30.08 0.0004
2021-08-23 2021-06-30 13F/A-1 KOPPERS HOLDINGS COM 50060P106 114,926 49,280 75.07 3,717 62.95 0.0005
2021-08-16 2021-06-30 13F KOPPERS HOLDINGS COM 50060P106 114,926 49,280 3,717 0.0001
2021-05-17 2021-03-31 13F KOPPERS HOLDINGS COM 50060P106 65,646 -12,419 -15.91 2,281 -6.21 0.0003
2021-02-16 2020-12-31 13F KOPPERS HOLDINGS COM 50060P106 78,065 15,226 24.23 2,432 85.08 0.0004
2020-11-13 2020-09-30 13F KOPPERS HOLDINGS COM 50060P106 62,839 -18,957 -23.18 1,314 -14.79 0.0003
2020-08-14 2020-06-30 13F KOPPERS HOLDINGS COM 50060P106 81,796 -127,954 -61.00 1,542 -40.58 0.0003
2020-05-26 2020-03-31 13F/A-1 KOPPERS HOLDINGS COM 50060P106 209,750 -66,955 -24.20 2,595 -75.46 0.0007
2020-05-15 2020-03-31 13F KOPPERS HOLDINGS COM 50060P106 209,750 -66,955 2,595 199.3501
2020-02-14 2019-12-31 13F KOPPERS HOLDINGS COM 50060P106 276,705 197,766 250.53 10,574 358.54 0.0025
2019-11-14 2019-09-30 13F KOPPERS HOLDINGS COM 50060P106 78,939 -24,977 -24.04 2,306 -24.42 0.0006
2019-08-14 2019-06-30 13F KOPPERS HOLDINGS COM 50060P106 103,916 84,420 433.01 3,051 501.78 0.0008
2019-05-15 2019-03-31 13F KOPPERS HOLDINGS COM 50060P106 19,496 -26,969 -58.04 507 -35.98 0.0001
2019-02-14 2018-12-31 13F KOPPERS HOLDINGS COM 50060P106 46,465 -45,752 -49.61 792 -72.42 0.0002
2019-04-23 2018-09-30 13F/A-2 KOPPERS HOLDINGS COM 50060P106 92,217 -51,595 -35.88 2,872 -47.92 0.0007
2018-11-20 2018-09-30 13F/A-1 KOPPERS HOLDINGS COM 50060P106 92,217 0 2,872 0.0007
2018-11-14 2018-09-30 13F KOPPERS HOLDINGS COM 50060P106 92,217 -51,595 2,872
2019-04-23 2018-06-30 13F/A-1 KOPPERS HOLDINGS COM 50060P106 143,812 40,026 38.57 5,515 29.31 0.0015
2018-08-14 2018-06-30 13F KOPPERS HOLDINGS COM 50060P106 143,812 40,026 5,515
2019-04-23 2018-03-31 13F/A-1 KOPPERS HOLDINGS COM 50060P106 103,786 22,217 27.24 4,265 2.75 0.0012
2018-05-14 2018-03-31 13F KOPPERS HOLDINGS COM 50060P106 103,786 22,217 4,265
2019-04-23 2017-12-31 13F/A-1 KOPPERS HOLDINGS COM 50060P106 81,569 -89,707 -52.38 4,151 -47.49 0.0011
2018-02-14 2017-12-31 13F KOPPERS HOLDINGS COM 50060P106 81,569 -89,707 4,151
2017-11-14 2017-09-30 13F KOPPERS HOLDINGS COM 50060P106 171,276 17,774 11.58 7,905 42.46 0.0024
2017-08-11 2017-06-30 13F KOPPERS HOLDINGS COM 50060P106 153,502 -22,394 -12.73 5,549 -25.51 0.0017
2017-05-22 2017-03-31 13F/A-1 KOPPERS HOLDINGS COM 50060P106 175,896 -24,235 -12.11 7,449 -7.65 0.0023
2017-05-12 2017-03-31 13F KOPPERS HOLDINGS COM 50060P106 175,896 7,449
2017-02-22 2016-12-31 13F/A-1 KOPPERS HOLDINGS COM 50060P106 200,131 11,246 5.95 8,066 32.71 0.0026
2017-02-13 2016-12-31 13F KOPPERS HOLDINGS COM 50060P106 200,131 8,066
2016-11-10 2016-09-30 13F KOPPERS HOLDINGS COM 50060P106 188,885 -113,953 -37.63 6,078 -34.69 0.0021
2016-08-12 2016-06-30 13F KOPPERS HOLDINGS COM 50060P106 302,838 32,190 11.89 9,306 53.03 0.0034
2016-05-12 2016-03-31 13F KOPPERS HOLDINGS COM 50060P106 270,648 -93,036 -25.58 6,081 -8.40 0.0023
2016-02-09 2015-12-31 13F KOPPERS HOLDINGS COM 50060P106 363,684 -7,656 -2.06 6,639 -11.35 0.0024
2016-02-08 2015-09-30 13F/A-1 KOPPERS HOLDINGS COM 50060P106 371,340 339,089 1,051.41 7,489 839.65 0.0028
2015-11-09 2015-09-30 13F KOPPERS HOLDINGS COM 50060P106 371,340 7,489
2015-08-12 2015-06-30 13F KOPPERS HOLDINGS COM 50060P106 32,251 7,280 29.15 797 62.32 0.0003
2015-05-14 2015-03-31 13F KOPPERS HOLDINGS COM 50060P106 24,971 -12,296 -32.99 491 -49.22 0.0002
2015-02-13 2014-12-31 13F KOPPERS HOLDINGS COM 50060P106 37,267 -38,055 -50.52 967 -61.30 0.0004
2014-12-16 2014-09-30 13F/A-1 KOPPERS HOLDINGS COM 50060P106 75,322 7,292 10.72 2,499 -10.88 0.0010
2014-11-14 2014-09-30 13F KOPPERS HOLDINGS COM 50060P106 75,322 2,499
2014-05-13 2014-03-31 13F KOPPERS HOLDINGS COM 50060P106 68,030 -155,216 -69.53 2,804 -72.55 0.0012
2014-02-13 2013-12-31 13F KOPPERS HOLDINGS COM 50060P106 223,246 145,729 188.00 10,214 208.95 0.0043
2013-11-13 2013-09-30 13F KOPPERS HLDGS INC COM ST COM 50060P106 77,517 4,014 5.46 3,306 17.82 0.0016
2013-08-08 2013-06-30 13F KOPPERS HLDGS INC COM ST COM 50060P106 73,503 73,503 2,806 0.0014
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.