← United States · Coverage record
US · SEC FORM 4
Koppers Holdings Inc.
KOP · NYSE · CIK 0001315257 · Basic Materials · Specialty Chemicals
INSIDER SIGNAL
0 qualifying P purchase groups
in the current 180-day scoring window
24 Form 4 transaction lines observed in the same window
10 sales · 14 option, withholding, award, gift or other lines
WHY NO ACTIVE SIGNAL?
Score anatomy
No score is calculated because there is no qualifying purchase in the active window. Unavailable inputs are not treated as zero or as a bearish signal.
Why is there no score?
- No qualifying open-market purchase supplies cluster, size, role, recency or conviction inputs.
- Sales and other Form 4 activity remain visible as context and do not create a negative score.
Sales and other Form 4 activity are shown separately and do not create a negative buy signal. Absence of buying is not scored as bearish.
Insider activity timeline
Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.
Showing the six most active owners; 5 additional owner(s) remain in Form 4 evidence.
Purchase breadth, concentration & cluster buying
These modules activate when qualifying purchases enter the 180-day research window.
SIGNAL HISTORY
Scores are archived only when the company qualifies for a published US buy-signal snapshot. Last qualifying purchase: 2023-03-27 · Skrovanek Daniel J.
Recent Form 4 activity
P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.
Market context
Market context has not been captured for this ticker yet. The daily market-context job processes the US universe in rotating batches.
Short interest
Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.
- Shares short
- 800,969
- Previous report
- 769,075
- Avg daily volume
- 179,270
- Days to cover
- 4.5
FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.
Historical equity purchases
Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.
| Transaction date | Reporting owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2023-03-27 | Skrovanek Daniel J | Purchase (P) | Common Stock | 30 | USD 32.70 | USD 983 | SEC filing ↗ |
| 2023-03-27 | JENSEN TRACI L | Purchase (P) | Common Stock | 6 | USD 32.70 | USD 186 | SEC filing ↗ |
| 2020-05-19 | NEUPAVER ALBERT J | Purchase (P) | Common Stock | 3,250 | USD 15.36 | USD 49,920 | SEC filing ↗ |
Form 4 evidence
81 transaction lines in the latest 365-day window; 644 in local history.
| Date | Owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2026-08-31 | BALL M LEROY | Sale (S) | Common Stock | 4,000 | USD 45.96 | USD 183,840 | SEC filing ↗ |
| 2026-08-31 | BALL M LEROY | Gift (G) | Common Stock | 200 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-08-19 | BALL M LEROY | Sale (S) | Common Stock | 3,000 | USD 45.84 | USD 137,520 | SEC filing ↗ |
Show recent Form 4 evidence (30 grouped rows)
| Date | Owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2026-08-31 | BALL M LEROY | Sale (S) | Common Stock | 4,000 | USD 45.96 | USD 183,840 | SEC filing ↗ |
| 2026-08-31 | BALL M LEROY | Gift (G) | Common Stock | 200 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-08-19 | BALL M LEROY | Sale (S) | Common Stock | 3,000 | USD 45.84 | USD 137,520 | SEC filing ↗ |
| 2026-08-12 | Lucas Stephen G | Sale (S) | Common Stock | 1,308 | USD 44.55 | USD 58,271 | SEC filing ↗ |
| 2026-08-11 | Sullivan James A. | Sale (S) | Common Stock | 7,500 | USD 50.00 | USD 375,000 | SEC filing ↗ |
| 2026-08-10 | Pearce Bradley A | Sale (S) | Common Stock | 2,000 | USD 51.01 | USD 102,020 | SEC filing ↗ |
| 2026-08-07 | Sullivan James A. | Sale (S) | Common Stock | 80,000 | USD 50.01 | USD 4,000,921 | SEC filing ↗ |
| 2026-06-18 | BALL M LEROY | Sale (S) | Common Stock | 3,412 | USD 43.90 | USD 149,787 | SEC filing ↗ |
| 2026-06-11 | BALL M LEROY | Sale (S) | Common Stock | 4,141 | USD 41.34 | USD 171,189 | SEC filing ↗ |
| 2026-06-11 | BALL M LEROY | Gift (G) | Common Stock | 300 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-06-03 | Feng Xudong | Gift (G) | Common Stock | 5,695 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-05-26 | Brenner Eric D. | Award / grant (A) | Common Stock | 6,620 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-05-13 | BALL M LEROY | Sale (S) | Common Stock | 2,659 | USD 42.55 | USD 113,140 | SEC filing ↗ |
| 2026-05-12 | Pearce Bradley A | Award / grant (A) | Common Stock | 5,000 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-05-07 | Vartanian Nishan J. | Option exercise / conversion (M) | Common Stock | 50 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-05-07 | Vartanian Nishan J. | Award / grant (A) | Common Stock | 3,280 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-05-07 | Posadas Laura J | Option exercise / conversion (M) | Common Stock | 11 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-05-07 | Posadas Laura J | Award / grant (A) | Common Stock | 3,280 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-05-07 | NEUPAVER ALBERT J | Option exercise / conversion (M) | Common Stock | 50 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-05-07 | MOTLEY DAVID L | Option exercise / conversion (M) | Common Stock | 50 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-05-07 | JENSEN TRACI L | Option exercise / conversion (M) | Common Stock | 50 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-05-07 | JENSEN TRACI L | Award / grant (A) | Common Stock | 3,280 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-05-07 | Feng Xudong | Award / grant (A) | Common Stock | 3,280 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-03-17 | BALL M LEROY | Sale (S) | Common Stock | 2,489 | USD 37.91 | USD 94,358 | SEC filing ↗ |
| 2026-03-17 | BALL M LEROY | Gift (G) | Common Stock | 1,200 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-03-02 | BALL M LEROY | Sale (S) | Common Stock | 6,275 | USD 36.87 | USD 231,371 | SEC filing ↗ |
| 2026-03-02 | BALL M LEROY | Gift (G) | Common Stock | 325 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-02-26 | Lucas Stephen G | Option exercise / conversion (M) | Common Stock | 127 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-02-26 | Lucas Stephen G | Tax withholding (F) | Common Stock | 2,536 | USD 37.24 | USD 94,441 | SEC filing ↗ |
| 2026-02-26 | Lucas Stephen G | Award / grant (A) | Common Stock | 5,298 | USD 0.00 | USD 0 | SEC filing ↗ |
Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.
Snapshot & identity
| Snapshot date | 2026-10-18 |
|---|---|
| Ranking version | US-v1.2 |
| Data quality | PASS ELIGIBLE · — |
| Ticker | KOP |
| CIK | 0001315257 |
| Sector | Basic Materials |
| Industry | Specialty Chemicals Yahoo Finance |
| SEC SIC | 2400 Lumber & Wood Products (No Furniture) |
| Exchange | NYSE |
Data coverage
| Local Form 4 history | 644 transaction lines from 2020-02-20 to 2026-08-31 3 P purchase lines · 136 S sale lines · 505 other lines |
|---|---|
| SEC company submissions | Open SEC filings ↗ |
Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.