Koppers Holdings Inc.
DE ˙ DB ˙ US50060P1066
34,20 € ↑0,40 (1,18%)
2026-06-01
AKTIENPREIS
SecurityDE:KO9 / Koppers Holdings Inc.
InstitutionState Street Corp
Latest Disclosed Ownership601,826 shares
Ownership 2.91%
State Street Corp ownership in KO9 / Koppers Holdings Inc.

2020-02-13 - State Street Corp has filed an SC 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 601,826 shares of Koppers Holdings Inc. (DE:KO9). This represents 2.91 percent ownership of the company. In their previous filing dated 2019-02-14 , State Street Corp had reported owning 1,243,590 shares, indicating a decrease of -51.61 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date		Effective
Date		Form Prev
Shares		 Latest
Shares		 ΔShares
(Percent)		 Ownership
(Percent)		 ΔOwnership
(Percent)
2020-02-13 2020-02-13 13G/A 1,243,590 601,826 -51.61 2.91 -52.30
2019-02-14 2019-02-14 13G 1,243,590 6.10

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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)
2026-05-15 2026-03-31 13F KOPPERS HOLDINGS COM 50060P106 752,264 -12,060 -1.58 29,098 40.59 0.0010
2026-02-13 2025-12-31 13F KOPPERS HOLDINGS COM 50060P106 764,324 -5,231 -0.68 20,698 -3.94 0.0007
2025-11-14 2025-09-30 13F KOPPERS HOLDINGS COM 50060P106 769,555 -7,711 -0.99 21,548 -13.77 0.0007
2025-08-14 2025-06-30 13F KOPPERS HOLDINGS COM 50060P106 777,266 7,792 1.01 24,989 15.99 0.0009
2025-05-15 2025-03-31 13F KOPPERS HOLDINGS COM 50060P106 769,474 -40,913 -5.05 21,545 -17.94 0.0009
2025-02-14 2024-12-31 13F KOPPERS HOLDINGS COM 50060P106 810,387 39,203 5.08 26,257 -6.80 0.0010
2024-11-14 2024-09-30 13F KOPPERS HOLDINGS COM 50060P106 771,184 -7,756 -1.00 28,171 -2.22 0.0011
2024-08-14 2024-06-30 13F KOPPERS HOLDINGS COM 50060P106 778,940 4,324 0.56 28,813 -32.58 0.0013
2024-05-15 2024-03-31 13F KOPPERS HOLDINGS COM 50060P106 774,616 14,462 1.90 42,736 9.76 0.0019
2024-02-14 2023-12-31 13F KOPPERS HOLDINGS COM 50060P106 760,154 -1,338 -0.18 38,935 29.28 0.0019
2023-11-14 2023-09-30 13F KOPPERS HOLDINGS COM 50060P106 761,492 9,591 1.28 30,117 17.47 0.0017
2023-08-14 2023-06-30 13F KOPPERS HOLDINGS COM 50060P106 751,901 -7,048 -0.93 25,640 -3.39 0.0013
2023-05-15 2023-03-31 13F KOPPERS HOLDINGS COM 50060P106 758,949 -6,394 -0.84 26,540 22.97 0.0015
2023-05-15 2022-12-31 13F/A-99 KOPPERS HOLDINGS COM 50060P106 765,343 26,809 3.63 21,583 40.63 0.0013
2023-05-15 2022-12-31 13F KOPPERS HOLDINGS COM 50060P106 765,343 26,809 21,583 0.0013
2022-11-15 2022-09-30 13F KOPPERS HOLDINGS COM 50060P106 738,534 -11,966 -1.59 15,347 -9.68 0.0010
2022-08-15 2022-06-30 13F KOPPERS HOLDINGS COM 50060P106 750,500 17,421 2.38 16,991 -15.93 0.0010
2022-05-16 2022-03-31 13F KOPPERS HOLDINGS COM 50060P106 733,079 21,580 3.03 20,210 -9.25 0.0010
2022-02-14 2021-12-31 13F KOPPERS HOLDINGS COM 50060P106 711,499 30,380 4.46 22,270 4.59 0.0011
2021-11-15 2021-09-30 13F KOPPERS HOLDINGS COM 50060P106 681,119 -21,645 -3.08 21,292 -6.34 0.0011
2021-08-16 2021-06-30 13F KOPPERS HOLDINGS COM 50060P106 702,764 34,715 5.20 22,734 -2.10 0.0012
2021-07-09 2021-03-31 13F/A-1 KOPPERS HOLDINGS COM 50060P106 668,049 38,334 6.09 23,221 18.34 0.0013
2021-05-17 2021-03-31 13F KOPPERS HOLDINGS COM 50060P106 668,049 38,334 23,221 0.0013
2021-02-16 2020-12-31 13F KOPPERS HOLDINGS COM 50060P106 629,715 57,330 10.02 19,622 63.94 0.0012
2020-11-10 2020-09-30 13F KOPPERS HOLDINGS COM 50060P106 572,385 -9,303 -1.60 11,969 9.22 0.0008
2020-08-14 2020-06-30 13F KOPPERS HOLDINGS COM 50060P106 581,688 -43,564 -6.97 10,959 41.70 0.0008
2020-06-19 2020-03-31 13F/A-1 KOPPERS HOLDINGS COM 50060P106 625,252 23,426 3.89 7,734 -66.38 0.0007
2020-05-11 2020-03-31 13F KOPPERS HOLDINGS COM 50060P106 625,252 23,426 7,734 679.2009
2020-02-06 2019-12-31 13F KOPPERS HOLDINGS COM 50060P106 601,826 -15,513 -2.51 23,002 27.56 0.0016
2019-11-14 2019-09-30 13F KOPPERS HOLDINGS COM 50060P106 617,339 -455,588 -42.46 18,032 -42.76 0.0013
2019-08-14 2019-06-30 13F KOPPERS HOLDINGS COM 50060P106 1,072,927 -106,447 -9.03 31,501 2.81 0.0023
2019-05-15 2019-03-31 13F KOPPERS HOLDINGS COM 50060P106 1,179,374 -64,216 -5.16 30,640 44.59 0.0024
2019-02-12 2018-12-31 13F KOPPERS HOLDINGS COM 50060P106 1,243,590 589,851 90.23 21,191 4.06 0.0019
2018-11-09 2018-09-30 13F KOPPERS HOLDINGS Common equity shares 50060P106 653,739 31,679 5.09 20,365 -14.65 0.0016
2018-08-14 2018-06-30 13F KOPPERS HOLDINGS Common equity shares 50060P106 622,060 40,602 6.98 23,860 -0.17 0.0020
2018-05-15 2018-03-31 13F KOPPERS HOLDINGS Common equity shares 50060P106 581,458 -7,233 -1.23 23,901 -20.24 0.0020
2018-02-14 2017-12-31 13F KOPPERS HOLDINGS Common equity shares 50060P106 588,691 26,432 4.70 29,965 15.47 0.0024
2017-11-14 2017-09-30 13F KOPPERS HOLDINGS Common equity shares 50060P106 562,259 -10,789 -1.88 25,950 25.27 0.0022
2017-08-14 2017-06-30 13F KOPPERS HOLDINGS Common equity shares 50060P106 573,048 58,405 11.35 20,716 -4.95 0.0018
2017-05-15 2017-03-31 13F KOPPERS HOLDINGS Common equity shares 50060P106 514,643 -21,240 -3.96 21,794 0.93 0.0019
2017-02-09 2016-12-31 13F KOPPERS HOLDINGS Common equity shares 50060P106 535,883 23,884 4.66 21,593 31.05 0.0020
2017-01-13 2016-09-30 13F/A-1 KOPPERS HOLDINGS Common equity shares 50060P106 511,999 18,206 3.69 16,477 8.62 0.0017
2016-11-14 2016-09-30 13F KOPPERS HOLDINGS Common equity shares 50060P106 511,999 16,477
2016-08-12 2016-06-30 13F KOPPERS HOLDINGS Common equity shares 50060P106 493,793 29,313 6.31 15,170 45.39 0.0016
2016-05-20 2016-03-31 13F/A-1 KOPPERS HOLDINGS Common equity shares 50060P106 464,480 30,944 7.14 10,434 31.88 0.0011
2016-05-12 2016-03-31 13F KOPPERS HOLDINGS Common equity shares 50060P106 464,480 10,434
2016-02-16 2015-12-31 13F KOPPERS HOLDINGS Common equity shares 50060P106 433,536 41,216 10.51 7,912 -0.01 0.0009
2015-11-16 2015-09-30 13F KOPPERS HOLDINGS Common equity shares 50060P106 392,320 -5,205 -1.31 7,913 -19.45 0.0009
2015-08-13 2015-06-30 13F KOPPERS HOLDINGS Common equity shares 50060P106 397,525 17,653 4.65 9,824 31.39 0.0011
2015-05-15 2015-03-31 13F KOPPERS HOLDINGS Common equity shares 50060P106 379,872 -19,795 -4.95 7,477 -28.01 0.0008
2015-02-11 2014-12-31 13F KOPPERS HOLDINGS Common equity shares 50060P106 399,667 1,396 0.35 10,386 -21.37 0.0010
2014-11-12 2014-09-30 13F/A-1 KOPPERS HOLDINGS Common equity shares 50060P106 398,271 -28,870 -6.76 13,209 -19.14 0.0014
2014-11-10 2014-09-30 13F KOPPERS HOLDINGS Common equity shares 50060P106 398,271 13,209
2014-08-12 2014-06-30 13F KOPPERS HOLDINGS Common equity shares 50060P106 427,141 -19,590 -4.39 16,335 -11.29 0.0018
2014-05-15 2014-03-31 13F/A-1 KOPPERS HOLDINGS Common equity shares 50060P106 446,731 -24,785 -5.26 18,413 -14.64 0.0021
2014-05-13 2014-03-31 13F KOPPERS HOLDINGS Common equity shares 50060P106 447,558 18,447
2014-02-06 2013-12-31 13F/A-1 KOPPERS HOLDINGS Common equity shares 50060P106 471,516 -5,412 -1.13 21,571 6.08 0.0024
2014-02-06 2013-12-31 13F KOPPERS HOLDINGS Common equity shares 50060P106 443,106 16,908
2013-11-12 2013-09-30 13F KOPPERS HOLDINGS Common equity shares 50060P106 476,928 9,710 2.08 20,335 14.00 0.0025
2013-08-08 2013-06-30 13F KOPPERS HOLDINGS Common equity shares 50060P106 467,218 467,218 17,837 0.0023
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.