Koppers has retired 10.5% of its shares since 2021, from 21,127,033 to 18,911,568.
At $43.32 a share, a market value of $819.2M. P/E n/m, trailing twelve months to June 2026.
| Fiscal year | Date | Shares outstanding | Filing | |
|---|---|---|---|---|
| 2005 | 2006-02-28 | 20,700,000 | 10-K | cover page |
| 2006 | 2007-01-31 | 20,729,823 | 10-K | cover page |
| 2007 | 2008-01-31 | 20,826,551 | 10-K | cover page |
| 2008 | 2008-12-31 | 21,097,000 | 10-K/A | |
| 2009 | 2009-12-31 | 21,124,000 | 10-K | |
| 2010 | 2011-01-31 | 20,578,276 | 10-K | |
| 2011 | 2012-01-31 | 20,603,049 | 10-K/A | |
| 2012 | 2013-01-31 | 20,634,103 | 10-K | |
| 2013 | 2014-01-31 | 20,634,103 | 10-K | |
| 2014 | 2015-01-31 | 20,495,011 | 10-K | |
| 2015 | 2016-01-31 | 20,556,830 | 10-K | |
| 2016 | 2017-01-31 | 20,664,898 | 10-K | |
| 2017 | 2018-01-31 | 20,778,448 | 10-K | |
| 2018 | 2019-01-31 | 20,548,744 | 10-K | |
| 2019 | 2020-01-31 | 20,805,162 | 10-K | |
| 2020 | 2021-01-29 | 21,098,544 | 10-K | |
| 2021 | 2022-01-31 | 21,127,033 | 10-K | |
| 2022 | 2023-01-31 | 20,830,370 | 10-K | |
| 2023 | 2024-01-31 | 21,027,990 | 10-K | |
| 2024 | 2025-01-31 | 20,485,752 | 10-K | |
| 2025 | 2026-01-30 | 19,639,357 | 10-K |
Source: all 10-K filings of Koppers on EDGAR. Download this series as CSV. Licence CC BY 4.0, credit Buyback Radar.
The story
Every Monday we write about one of these companies.
Read the full storyCash spent comes from the cash flow statement. Shares outstanding fell by less than the company bought, because part of every buyback only replaces shares handed to employees. Today’s price is $43.32.
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Yes. Koppers has 3.6% fewer shares outstanding than twelve months ago, 18,911,568 as of July 31, 2026. Over five years the share count is down 11.2%.
Net of every new share it issued, Koppers has 2.2 million fewer shares than at its 2021 peak. That is 10.5% of the company. Since fiscal 2022 alone it bought back about 3.8 million shares, while the count fell by 1.9 million. The difference went to employees and other new shares.
18,911,568 shares, as of July 31, 2026, from the cover page of its latest 10-Q. At the 2021 peak it had 21,127,033.
Each share is a bigger slice of the company. Someone who held Koppers stock in 2021 owns 1.1 times as much of the business today without buying another share. Whether that was a good use of cash depends on the price paid.
Koppers ranks No. 467 of 467 companies on Buyback Radar by share of the company retired since its peak. Close to it on the list: FirstCash (10.6%), Triumph Financial (10.5%).
Every answer is computed from Koppers' own SEC filings and rebuilt every Monday. Latest count: 10-Q on EDGAR.
From the latest 13F filings. All superinvestors.
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