Koppers Holdings Inc. Koppers Holdings Inc. (KOP) SEC filings
KOP SEC filings moved a median of -0.56% by the close. KOP SEC filings — 10-K, 10-Q, 8-K and the rest — each read against the price at its own news timestamp. Back to the KOP overview →
49 measured KOP SEC filing events.
Where these KOP SEC filings landedvs 49 measured KOP SEC filing reactions
| Middle 50% of KOP SEC filing reactions | -2.09% to +1.64% |
|---|---|
| Median reaction (to close) | -0.56% |
| Measured reactions | 49 |
Point-in-time · zero look-ahead
Half of the 49 KOP SEC filing events with a measured close landed between -2.09% and +1.64%; 47% closed up.
| Date | Headline | Event | 5-min | To close |
|---|---|---|---|---|
| Form 10-Q Koppers Holdings Inc. For: Jun 30 | SEC filing · Form 10-Q | +0.10% | +3.07% | |
| Form 8-K Koppers Holdings Inc. For: Aug 06 | SEC filing · Form 8-K | +1.44% | +7.61% | |
| Form 8-K Koppers Holdings Inc. For: May 11 | SEC filing · Form 8-K | -0.36% | -2.09% | |
| Form 10-Q Koppers Holdings Inc. For: Mar 31 | SEC filing · Form 10-Q | -0.55% | -3.81% | |
| Form 8-K Koppers Holdings Inc. For: May 07 | SEC filing · Form 8-K | -1.94% | -0.88% | |
| Form S-8 Koppers Holdings Inc. | SEC filing · Form S-8 | -1.94% | -0.88% | |
| Form 8-K/A Koppers Holdings Inc. For: Nov 05 | SEC filing · Form 8-K | -1.94% | -0.88% | |
| Form ARS Koppers Holdings Inc. For: Dec 31 | SEC filing · Form ARS | -0.81% | -0.60% | |
| Form DEF 14A Koppers Holdings Inc. For: May 07 | SEC filing · Form DEF | -0.81% | -0.60% | |
| Form 8-K/A Koppers Holdings Inc. For: Jan 05 | SEC filing · Form 8-K | +0.72% | +1.44% | |
| Form 10-K Koppers Holdings Inc. For: Dec 31 | SEC filing · Form 10-K | — | +5.29% | |
| Form 8-K Koppers Holdings Inc. For: Feb 26 | SEC filing · Form 8-K | +2.54% | +4.90% | |
| Form 8-K Koppers Holdings Inc. For: Jan 05 | SEC filing · Form 8-K | +0.89% | +4.77% | |
| Form 8-K/A Koppers Holdings Inc. For: Nov 08 | SEC filing · Form 8-K | -0.36% | -3.54% | |
| Form 10-Q Koppers Holdings Inc. For: Sep 30 | SEC filing · Form 10-Q | +0.25% | +1.64% | |
| Form 8-K Koppers Holdings Inc. For: Nov 07 | SEC filing · Form 8-K | -0.80% | -6.81% | |
| Form 8-K Koppers Holdings Inc. For: Nov 05 | SEC filing · Form 8-K | +0.00% | -1.10% | |
| Form 10-Q Koppers Holdings Inc. For: Jun 30 | SEC filing · Form 10-Q | +2.73% | +4.87% | |
| Form 8-K Koppers Holdings Inc. For: Aug 08 | SEC filing · Form 8-K | -0.28% | +0.35% | |
| Form 8-K Koppers Holdings Inc. For: Jun 17 | SEC filing · Form 8-K | +0.00% | -1.17% | |
| Form 8-K Koppers Holdings Inc. For: May 22 | SEC filing · Form 8-K | +0.00% | -1.13% | |
| Form 10-Q Koppers Holdings Inc. For: Mar 31 | SEC filing · Form 10-Q | +0.39% | -0.39% | |
| Form 8-K Koppers Holdings Inc. For: May 08 | SEC filing · Form 8-K | +2.06% | -3.77% | |
| Form S-8 Koppers Holdings Inc. | SEC filing · Form S-8 | +2.06% | -3.77% | |
| Form DEFA14A Koppers Holdings Inc. | SEC filing · Form DEFA14A | -0.83% | -0.56% | |
| Form ARS Koppers Holdings Inc. For: Dec 31 | SEC filing · Form ARS | +1.52% | +1.60% | |
| Form DEF 14A Koppers Holdings Inc. For: May 08 | SEC filing · Form DEF | +1.52% | +1.60% | |
| Form 10-K Koppers Holdings Inc. For: Dec 31 | SEC filing · Form 10-K | -2.23% | +1.33% | |
| Form 8-K Koppers Holdings Inc. For: Feb 27 | SEC filing · Form 8-K | -4.92% | -7.20% | |
| Form 8-K Koppers Holdings Inc. For: Dec 17 | SEC filing · Form 8-K | +0.38% | -1.94% | |
| Form 8-K Koppers Holdings Inc. For: Dec 05 | SEC filing · Form 8-K | +0.11% | -3.45% | |
| Form 8-K Koppers Holdings Inc. For: Dec 05 | SEC filing · Form 8-K | -1.30% | -3.49% | |
| Form 10-Q Koppers Holdings Inc. For: Sep 30 | SEC filing · Form 10-Q | — | +0.98% | |
| Form 8-K Koppers Holdings Inc. For: Nov 08 | SEC filing · Form 8-K | +0.75% | -4.81% | |
| Form 10-Q Koppers Holdings Inc. For: Jun 30 | SEC filing · Form 10-Q | +0.10% | -1.99% | |
| Form 8-K Koppers Holdings Inc. For: Aug 08 | SEC filing · Form 8-K | +0.00% | +0.31% | |
| Form 10-Q Koppers Holdings Inc. For: Mar 31 | SEC filing · Form 10-Q | -0.38% | -0.92% | |
| Form 8-K Koppers Holdings Inc. For: May 02 | SEC filing · Form 8-K | -0.60% | -10.92% | |
| Form 8-K/A Koppers Holdings Inc. For: May 02 | SEC filing · Form 8-K | -0.60% | -10.92% | |
| Form 8-K Koppers Holdings Inc. For: Apr 12 | SEC filing · Form 8-K | +0.00% | +0.96% | |
| Form ARS Koppers Holdings Inc. For: Dec 31 | SEC filing · Form ARS | +0.00% | +2.81% | |
| Form DEF 14A Koppers Holdings Inc. For: May 02 | SEC filing · Form DEF | +0.00% | +2.81% | |
| Form PRE 14A Koppers Holdings Inc. For: May 02 | SEC filing · Form PRE | +0.00% | +1.97% | |
| Form 10-K Koppers Holdings Inc. For: Dec 31 | SEC filing · Form 10-K | +0.22% | +2.44% | |
| Form 8-K Koppers Holdings Inc. For: Feb 28 | SEC filing · Form 8-K | -1.35% | +6.55% | |
| Form 8-K Koppers Holdings Inc. For: Feb 13 | SEC filing · Form 8-K | -1.18% | +1.10% | |
| Form 8-K Koppers Holdings Inc. For: Jan 01 | SEC filing · Form 8-K | +0.00% | -7.43% | |
| Form 10-Q Koppers Holdings Inc. For: Sep 30 | SEC filing · Form 10-Q | +0.05% | +0.29% | |
| Form 8-K Koppers Holdings Inc. For: Nov 03 | SEC filing · Form 8-K | +0.00% | +3.72% |
Keep exploring
More KOP: earnings → · analyst actions → · KOP overview →
Other Basic Materials names and their SEC filings
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| Minerals Technologies Inc. (MTX) | 434 | -0.03% | 45% |
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Same sector, same measurement: percent move vs. the price at the news timestamp, read at 30 minutes. Sample sizes differ, so the medians are comparable but the confidence behind them is not. These are each name’s all-news baseline, not its SEC filings — that is what the link opens.