L. Stephanie Apostolou's most recent trade in Koppers Holdings Inc was a trade of 9,876 Common Stock done . Disclosure was reported to the exchange on Jan. 2, 2026.
| Stock | Client Name | Client Category | Action | Reported to Exchange | Quantity | Post Transaction Holding | Traded % | Avg. Price | Value | Security Type |
|---|---|---|---|---|---|---|---|---|---|---|
| Koppers Holdings Inc | Stephanie L. Apostolou | Chief Legal&Sus Officer & Sec. | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 02 Jan 2026 | 9,876 | 59,753 (0%) | 0% | 0 | Common Stock | |
| Koppers Holdings Inc | Stephanie L. Apostolou | Chief Legal&Sus Officer & Sec. | Payment of exercise price or tax liability using portion of securities received from the company at price $ 26.93 per share. | 02 Jan 2026 | 5,757 | 58,902 (0%) | 0% | 26.9 | 155,036 | Common Stock |
| Koppers Holdings Inc | Stephanie L. Apostolou | Chief Legal&Sus Officer & Sec. | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 02 Jan 2026 | 4,666 | 64,419 (0%) | 0% | - | Common Stock | |
| Koppers Holdings Inc | Stephanie L. Apostolou | Chief Legal&Sus Officer & Sec. | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 02 Jan 2026 | 4,666 | 0 | - | - | Restricted Stock Units | |
| Koppers Holdings Inc | Stephanie L. Apostolou | Chief Legal&Sus Officer & Sec. | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 02 Jan 2026 | 1,335 | 1,335 | - | - | Restricted Stock Units | |
| Koppers Holdings Inc | Stephanie L. Apostolou | Chief Legal&Sus Officer & Sec. | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 02 Jan 2026 | 1,153 | 4,666 | - | - | Restricted Stock Units | |
| Koppers Holdings Inc | Stephanie L. Apostolou | Chief Legal&Sus Officer & Sec. | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 02 Jan 2026 | 240 | 64,659 (0%) | 0% | 0 | Common Stock | |
| Koppers Holdings Inc | Stephanie L. Apostolou | Chief Legal&Sus Officer & Sec. | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 02 Jan 2026 | 240 | 148 | - | - | Dividend Equivalent Rights | |
| Koppers Holdings Inc | Stephanie L. Apostolou | Chief Legal&Sus Officer & Sec. | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 02 Jan 2026 | 39 | 388 | - | - | Dividend Equivalent Rights | |
| Koppers Holdings Inc | Stephanie L. Apostolou | Chief Legal&Sus Officer & Sec. | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 16 Dec 2025 | 245 | 349 | - | - | Dividend Equivalent Rights | |
| Koppers Holdings Inc | Stephanie L. Apostolou | Chief Legal&Sus Officer & Sec. | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 03 Jan 2025 | 13,628 | 47,662 (0%) | 0% | 0 | Common Stock | |
| Koppers Holdings Inc | Stephanie L. Apostolou | Chief Legal&Sus Officer & Sec. | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 03 Jan 2025 | 6,867 | 54,529 (0%) | 0% | - | Common Stock | |
| Koppers Holdings Inc | Stephanie L. Apostolou | Chief Legal&Sus Officer & Sec. | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 03 Jan 2025 | 6,867 | 0 | - | - | Restricted Stock Units | |
| Koppers Holdings Inc | Stephanie L. Apostolou | Chief Legal&Sus Officer & Sec. | Payment of exercise price or tax liability using portion of securities received from the company at price $ 31.72 per share. | 03 Jan 2025 | 5,690 | 49,049 (0%) | 0% | 31.7 | 180,487 | Common Stock |
| Koppers Holdings Inc | Stephanie L. Apostolou | Chief Legal&Sus Officer & Sec. | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 03 Jan 2025 | 2,630 | 6,867 | - | - | Restricted Stock Units | |
| Koppers Holdings Inc | Stephanie L. Apostolou | Chief Legal&Sus Officer & Sec. | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 03 Jan 2025 | 1,439 | 3,513 | - | - | Restricted Stock Units | |
| Koppers Holdings Inc | Stephanie L. Apostolou | Chief Legal&Sus Officer & Sec. | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 03 Jan 2025 | 210 | 54,739 (0%) | 0% | 0 | Common Stock | |
| Koppers Holdings Inc | Stephanie L. Apostolou | Chief Legal&Sus Officer & Sec. | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 03 Jan 2025 | 210 | 104 | - | - | Dividend Equivalent Rights | |
| Koppers Holdings Inc | Stephanie L. Apostolou | Chief Legal&Sus Officer & Sec. | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 03 Jan 2025 | 69 | 314 | - | - | Dividend Equivalent Rights | |
| Koppers Holdings Inc | Apostolou L. Stephanie | General Counsel & Secretary | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 16 Dec 2024 | 115 | 245 | - | - | Dividend Equivalent Rights | |
| Koppers Holdings Inc | Stephanie L. Apostolou | General Counsel & Secretary | Payment of exercise price or tax liability using portion of securities received from the company at price $ 52.97 per share. | 01 Mar 2024 | 788 | 33,539 (0%) | 0% | 53.0 | 41,740 | Common Stock |
| Koppers Holdings Inc | Stephanie L. Apostolou | General Counsel & Secretary | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 01 Mar 2024 | 26 | 34,327 (0%) | 0% | 0 | Common Stock | |
| Koppers Holdings Inc | Stephanie L. Apostolou | General Counsel & Secretary | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 01 Mar 2024 | 26 | 130 | - | - | Dividend Equivalent Rights | |
| Koppers Holdings Inc | L. Apostolou Stephanie | General Counsel & Secretary | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 04 Jan 2024 | 4,760 | 0 | - | - | Restricted Stock Units | |
| Koppers Holdings Inc | Stephanie Apostolou L. | General Counsel & Secretary | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 04 Jan 2024 | 4,760 | 38,236 (0%) | 0% | - | Common Stock | |
| Koppers Holdings Inc | L. Stephanie Apostolou | General Counsel & Secretary | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 04 Jan 2024 | 4,284 | 33,476 (0%) | 0% | 0 | Common Stock | |
| Koppers Holdings Inc | Apostolou Stephanie L. | General Counsel & Secretary | Payment of exercise price or tax liability using portion of securities received from the company at price $ 47.32 per share. | 04 Jan 2024 | 4,037 | 34,301 (0%) | 0% | 47.3 | 191,031 | Common Stock |
| Koppers Holdings Inc | Stephanie L. Apostolou | General Counsel & Secretary | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 04 Jan 2024 | 3,462 | 4,237 | - | - | Restricted Stock Units | |
| Koppers Holdings Inc | L. Apostolou Stephanie | General Counsel & Secretary | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 04 Jan 2024 | 2,424 | 4,760 | - | - | Restricted Stock Units | |
| Koppers Holdings Inc | Stephanie L. Apostolou | General Counsel & Secretary | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 04 Jan 2024 | 2,074 | 2,074 | - | - | Restricted Stock Units | |
| Koppers Holdings Inc | Stephanie Apostolou L. | General Counsel & Secretary | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 04 Jan 2024 | 102 | 156 | - | - | Dividend Equivalent Rights | |
| Koppers Holdings Inc | Apostolou Stephanie L. | General Counsel & Secretary | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 04 Jan 2024 | 102 | 38,338 (0%) | 0% | 0 | Common Stock | |
| Koppers Holdings Inc | Stephanie Apostolou L. | General Counsel & Secretary | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 04 Jan 2024 | 88 | 258 | - | - | Dividend Equivalent Rights | |
| Koppers Holdings Inc | Stephanie Apostolou L. | General Counsel & Secretary | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 12 Dec 2023 | 102 | 170 | - | - | Dividend Equivalent Rights | |
| Koppers Holdings Inc | Stephanie L. Apostolou | General Counsel & Secretary | Payment of exercise price or tax liability using portion of securities received from the company at price $ 37.55 per share. | 03 Mar 2023 | 798 | 28,514 (0%) | 0% | 37.6 | 29,965 | Common Stock |
| Koppers Holdings Inc | Stephanie L. Apostolou | General Counsel & Secretary | Payment of exercise price or tax liability using portion of securities received from the company at price $ 35.46 per share. | 03 Mar 2023 | 134 | 28,383 (0%) | 0% | 35.5 | 4,752 | Common Stock |
| Koppers Holdings Inc | Stephanie L. Apostolou | General Counsel & Secretary | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 03 Mar 2023 | 14 | 71 | - | - | Dividend Equivalent Rights | |
| Koppers Holdings Inc | Stephanie L. Apostolou | General Counsel & Secretary | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 03 Mar 2023 | 14 | 29,312 (0%) | 0% | 0 | Common Stock | |
| Koppers Holdings Inc | Stephanie L. Apostolou | General Counsel & Secretary | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 03 Mar 2023 | 3 | 28,517 (0%) | 0% | 0 | Common Stock | |
| Koppers Holdings Inc | Stephanie L. Apostolou | General Counsel & Secretary | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 03 Mar 2023 | 3 | 68 | - | - | Dividend Equivalent Rights | |
| Koppers Holdings Inc | Stephanie L. Apostolou | General Counsel & Secretary | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 05 Jan 2023 | 931 | 2,336 | - | - | Restricted Stock Units | |
| Koppers Holdings Inc | Stephanie L. Apostolou | General Counsel & Secretary | Payment of exercise price or tax liability using portion of securities received from the company at price $ 28.58 per share. | 05 Jan 2023 | 911 | 29,298 (0%) | 0% | 28.6 | 26,036 | Common Stock |
| Koppers Holdings Inc | Stephanie L. Apostolou | General Counsel & Secretary | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 05 Jan 2023 | 775 | 775 | - | - | Restricted Stock Units | |
| Koppers Holdings Inc | Stephanie L. Apostolou | General Counsel & Secretary | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 05 Jan 2023 | 14 | 74 | - | - | Dividend Equivalent Rights | |
| Koppers Holdings Inc | Stephanie L. Apostolou | General Counsel & Secretary | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 05 Jan 2023 | 14 | 30,209 (0%) | 0% | 0 | Common Stock | |
| Koppers Holdings Inc | Stephanie L. Apostolou | General Counsel & Secretary | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 05 Jan 2023 | 11 | 85 | - | - | Dividend Equivalent Rights | |
| Koppers Holdings Inc | Stephanie L. Apostolou | General Counsel & Secretary | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 03 Jan 2023 | 6,222 | 30,195 (0%) | 0% | 0 | Common Stock | |
| Koppers Holdings Inc | Stephanie L. Apostolou | General Counsel & Secretary | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 03 Jan 2023 | 88 | 88 | - | - | Dividend Equivalent Rights | |
| Koppers Holdings Inc | Stephanie L. Apostolou | General Counsel & Secretary | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 04 Mar 2022 | 3,514 | 0 | - | - | Restricted Stock Units | |
| Koppers Holdings Inc | Stephanie L. Apostolou | General Counsel & Secretary | Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. | 04 Mar 2022 | 3,514 | 24,786 (0%) | 0% | - | Common Stock | |
| Koppers Holdings Inc | Stephanie L. Apostolou | General Counsel & Secretary | Payment of exercise price or tax liability using portion of securities received from the company at price $ 28.18 per share. | 04 Mar 2022 | 1,638 | 23,148 (0%) | 0% | 28.2 | 46,159 | Common Stock |
| Koppers Holdings Inc | Stephanie L. Apostolou | General Counsel & Secretary | Payment of exercise price or tax liability using portion of securities received from the company at price $ 28.96 per share. | 03 Mar 2022 | 801 | 21,272 (0%) | 0% | 29.0 | 23,197 | Common Stock |
| Koppers Holdings Inc | Stephanie L. Apostolou | General Counsel & Secretary | Payment of exercise price or tax liability using portion of securities received from the company at price $ 28.49 per share. | 02 Mar 2022 | 45 | 22,073 (0%) | 0% | 28.5 | 1,282 | Common Stock |
| Koppers Holdings Inc | Stephanie L. Apostolou | General Counsel & Secretary | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 05 Jan 2022 | 1,405 | 1,405 | - | - | Restricted Stock Units | |
| Koppers Holdings Inc | Stephanie L. Apostolou | General Counsel & Secretary | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 05 Jan 2022 | 950 | 3,514 | - | - | Restricted Stock Units | |
| Koppers Holdings Inc | Stephanie L. Apostolou | General Counsel & Secretary | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 04 Jan 2022 | 5,868 | 5,868 | - | - | Employee Stock Options (Right to Buy) | |
| Koppers Holdings Inc | Stephanie L. Apostolou | General Counsel & Secretary | Grant, award, or other acquisition of securities at price $ 0.00 per share. | 04 Jan 2022 | 3,204 | 22,547 (0%) | 0% | 0 | Common Stock |