Latest 10-Q

What changed in Koppers Holdings Inc.'s latest quarterly report, compared with the one before.

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Insider trades

Open-market trades from Form 4. 10b5-1 marks a plan set in advance.Open-market buys and sales by officers, directors and 10% owners, from SEC Form 4. A plan set in advance is marked 10b5-1.

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13F holders

Funds that report this stock, checked against market prices.Fund managers with over $100 million in US-listed stocks file a 13F each quarter, up to 45 days after quarter end. Long positions only.

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Trades by members of Congress

Disclosed in dollar ranges, up to 45 days after the trade.Members of Congress, their spouses and dependent children report trades in dollar ranges, up to 45 days after the trade.

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Lobbying

What Koppers Holdings Inc. and its lobbying firms report each quarter.A company that lobbies with its own staff reports its expenses; a lobbying firm it hires reports the income it received. We count both.

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Lobbying and contracts

$190.0K · — in 12 mo

What Koppers Holdings Inc. reported spending on lobbying next to the federal contracts it was awarded, by year.Lobbying: each report counts once. If a report was amended, only the newest version counts. Totals use the company's own report when it files one (it includes payments to hired firms); otherwise the hired firms' reported income. Registrations and reports with no amount are not counted. A firm that hands part of its work to another firm may report the same money as that other firm does; the filings do not allow us to tell. Contracts: each award is counted once, for the company that received it (or its listed parent when only the parent is matched), in the year of its first obligation. The amount is the total obligated to date, so a later increase is counted in the year the award began. Only awards of $1 million or more are collected. Agencies: the offices named on lobbying reports and the awarding agencies of contracts are matched to one department name (the Army, Navy and Air Force count as the Department of Defense; NIH, FDA and CMS as Health and Human Services). An agency is listed under both when the company lobbied it and was awarded a contract by it in the same period. Offices outside this list, and Congress, are not counted as agencies.

$0$200.0K$400.0K$600.0K$800.0K2024 · Lobbying: $220,0002024 · Federal contracts: $020242025 · Lobbying: $780,0002025 · Federal contracts: $020252026 YTD · Lobbying: $50,0002026 YTD · Federal contracts: $02026 YTD

Lobbying Federal contractsBoth bars use one dollar scale.

Lobbying and federal contracts of Koppers Holdings Inc. by year
Gifts by the company's PAC to candidates for Congress. They come from donations to the PAC, not from the company's own funds.
2026 (year to date)$50.0K3Energy and nuclear, Transportation——————
2025$780.0K12Manufacturing, Environment and Superfund, Energy and nuclearCommerce, Energy, Environmental Protection Agency + 1 more—————
2024$220.0K2Environment and SuperfundEnvironmental Protection Agency—————

Agencies both lobbied and awarding contracts

No agency appears on both sides in the last 12 months.

Lobbying and contract awards are reported separately; showing them together does not mean one caused the other.

All companies · Contract awards · Lobbying reports

Capitol Hires at Koppers Holdings Inc.

1 hire

Lobbyists for Koppers Holdings Inc. who say they once worked in Congress or the executive branch.

Capitol Hires at Koppers Holdings Inc.
LobbyistFormer officeThe covered position the lobbyist says they held: an office of a member of Congress, a committee or an executive-branch body, as written in the filing. The member's name is a link only when exactly one member of Congress fits the name, chamber, first name and years given; otherwise it stays as written.RoleLobbying firmFilingThe lobbying report (LDA form LD-2) that names this lobbyist and office, with a link to it. Report period is the quarter the report covers; Posted is the day it was filed or amended, which can be much later. The same lobbyist is named again on each quarterly report for the same client, so a row is shown once, from the newest report, with the number of filings that name them.
Amanda WoodBob Graham (Senate)
Member office · Senate
Legislative DirectorBecker & Poliakoff, P.A.
Report period 2025 Q1 ↗
Posted Feb 12, 2025

Each row reflects what was disclosed at the time of filing. A lobbyist listed may no longer be registered.

H-1B labor applications at Koppers Holdings Inc.

3 certified in 12 mo

Labor condition applications decided by the Department of Labor, matched to Koppers Holdings Inc. by employer name. An application is not a hire.

Median yearly wage offered, full-time certified applications, Jul 2025 to Jun 2026: —The wage the employer offered, as filed, with its unit. The yearly figure restates it per year (hourly x 2,080, weekly x 52, every two weeks x 26, monthly x 12) from the low end of the offered range. It is not what the worker was paid.

H-1B labor applications decided at Koppers Holdings Inc. by quarter
QuarterCertifiedAll decidedWorkers asked for
2024 Q3222
2024 Q4000
2025 Q1000
2025 Q2333
2025 Q3000
2025 Q4000
2026 Q1000
2026 Q2333
Most common job titles at Koppers Holdings Inc.
R&D Engineer2—
Process Engineer1—

We match the employer's name to a public company automatically, including a reviewed list of subsidiaries. A subsidiary can be missed and a similar name can be matched wrongly. The files carry no worker names.

Institutional ownership over time

How many funds reported holding the stock at the end of each quarter, and how many shares they held between them.

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More filings and data

Each opens the table.

About the company

The basics from the company’s SEC registration.

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$31.16−$0.54 (−1.70%) Nov 13 close
Oct 13, 2026: $44.41Oct 14, 2026: $43.67Oct 15, 2026: $43.44Oct 16, 2026: $43.32Oct 19, 2026: $42.91Oct 20, 2026: $41.70Oct 21, 2026: $41.34Oct 22, 2026: $40.75Oct 23, 2026: $40.18Oct 26, 2026: $39.83Oct 27, 2026: $41.44Oct 28, 2026: $42.08Oct 29, 2026: $41.86Oct 30, 2026: $41.50Nov 2, 2026: $41.83Nov 3, 2026: $41.80Nov 4, 2026: $42.89Nov 5, 2026: $39.64Nov 6, 2026: $29.97Nov 9, 2026: $29.33Nov 10, 2026: $29.61Nov 11, 2026: $31.26Nov 12, 2026: $31.70Nov 13, 2026: $31.16
Oct 13, 2026Low $29.33 · High $44.41Nov 13, 2026
Aug 13, 2026: $46.22Aug 14, 2026: $47.14Aug 17, 2026: $47.45Aug 18, 2026: $45.44Aug 19, 2026: $44.90Aug 20, 2026: $45.88Aug 21, 2026: $45.19Aug 24, 2026: $45.83Aug 25, 2026: $46.13Aug 26, 2026: $46.34Aug 27, 2026: $46.32Aug 28, 2026: $46.56Aug 31, 2026: $45.87Sep 1, 2026: $45.93Sep 2, 2026: $46.72Sep 3, 2026: $46.86Sep 4, 2026: $47.78Sep 8, 2026: $47.12Sep 9, 2026: $46.06Sep 10, 2026: $46.35Sep 11, 2026: $46.35Sep 14, 2026: $46.00Sep 15, 2026: $45.79Sep 16, 2026: $46.72Sep 17, 2026: $46.18Sep 18, 2026: $45.33Sep 21, 2026: $45.61Sep 22, 2026: $46.10Sep 23, 2026: $46.26Sep 24, 2026: $45.96Sep 25, 2026: $46.27Sep 28, 2026: $46.17Sep 29, 2026: $46.08Sep 30, 2026: $45.59Oct 1, 2026: $45.19Oct 2, 2026: $46.04Oct 5, 2026: $47.04Oct 6, 2026: $46.03Oct 7, 2026: $43.88Oct 8, 2026: $44.24Oct 9, 2026: $43.41Oct 12, 2026: $43.10Oct 13, 2026: $44.41Oct 14, 2026: $43.67Oct 15, 2026: $43.44Oct 16, 2026: $43.32Oct 19, 2026: $42.91Oct 20, 2026: $41.70Oct 21, 2026: $41.34Oct 22, 2026: $40.75Oct 23, 2026: $40.18Oct 26, 2026: $39.83Oct 27, 2026: $41.44Oct 28, 2026: $42.08Oct 29, 2026: $41.86Oct 30, 2026: $41.50Nov 2, 2026: $41.83Nov 3, 2026: $41.80Nov 4, 2026: $42.89Nov 5, 2026: $39.64Nov 6, 2026: $29.97Nov 9, 2026: $29.33Nov 10, 2026: $29.61Nov 11, 2026: $31.26Nov 12, 2026: $31.70Nov 13, 2026: $31.16
Aug 13, 2026Low $29.33 · High $47.78Nov 13, 2026
Nov 13, 2025: $29.39Nov 14, 2025: $28.94Nov 17, 2025: $27.86Nov 18, 2025: $27.93Nov 19, 2025: $27.74Nov 20, 2025: $27.29Nov 21, 2025: $28.21Nov 24, 2025: $28.55Nov 25, 2025: $29.89Nov 26, 2025: $29.70Nov 28, 2025: $29.67Dec 1, 2025: $29.62Dec 2, 2025: $29.22Dec 3, 2025: $29.20Dec 4, 2025: $28.05Dec 5, 2025: $28.01Dec 8, 2025: $28.05Dec 9, 2025: $27.79Dec 10, 2025: $28.78Dec 11, 2025: $29.26Dec 12, 2025: $29.01Dec 15, 2025: $28.49Dec 16, 2025: $28.62Dec 17, 2025: $28.30Dec 18, 2025: $28.13Dec 19, 2025: $27.49Dec 22, 2025: $27.27Dec 23, 2025: $26.85Dec 24, 2025: $27.25Dec 26, 2025: $26.95Dec 29, 2025: $27.29Dec 30, 2025: $27.35Dec 31, 2025: $27.08Jan 2, 2026: $26.67Jan 5, 2026: $26.93Jan 6, 2026: $27.63Jan 7, 2026: $26.93Jan 8, 2026: $27.62Jan 9, 2026: $28.33Jan 12, 2026: $28.93Jan 13, 2026: $28.74Jan 14, 2026: $29.36Jan 15, 2026: $29.24Jan 16, 2026: $29.08Jan 20, 2026: $28.16Jan 21, 2026: $29.52Jan 22, 2026: $29.45Jan 23, 2026: $28.97Jan 26, 2026: $29.13Jan 27, 2026: $29.12Jan 28, 2026: $29.24Jan 29, 2026: $29.62Jan 30, 2026: $29.46Feb 2, 2026: $29.69Feb 3, 2026: $30.31Feb 4, 2026: $31.22Feb 5, 2026: $31.50Feb 6, 2026: $32.30Feb 9, 2026: $32.50Feb 10, 2026: $33.20Feb 11, 2026: $34.21Feb 12, 2026: $34.22Feb 13, 2026: $34.30Feb 17, 2026: $35.07Feb 18, 2026: $35.06Feb 19, 2026: $34.61Feb 20, 2026: $35.11Feb 23, 2026: $33.72Feb 24, 2026: $34.42Feb 25, 2026: $34.52Feb 26, 2026: $37.24Feb 27, 2026: $37.80Mar 2, 2026: $36.42Mar 3, 2026: $36.73Mar 4, 2026: $38.55Mar 5, 2026: $38.02Mar 6, 2026: $37.55Mar 9, 2026: $38.53Mar 10, 2026: $37.19Mar 11, 2026: $37.28Mar 12, 2026: $37.36Mar 13, 2026: $37.77Mar 16, 2026: $38.39Mar 17, 2026: $37.72Mar 18, 2026: $37.35Mar 19, 2026: $37.45Mar 20, 2026: $35.10Mar 23, 2026: $36.10Mar 24, 2026: $37.21Mar 25, 2026: $37.87Mar 26, 2026: $38.77Mar 27, 2026: $37.92Mar 30, 2026: $38.24Mar 31, 2026: $38.68Apr 1, 2026: $37.65Apr 2, 2026: $37.29Apr 6, 2026: $35.79Apr 7, 2026: $36.67Apr 8, 2026: $37.36Apr 9, 2026: $37.04Apr 10, 2026: $37.44Apr 13, 2026: $38.42Apr 14, 2026: $38.44Apr 15, 2026: $37.54Apr 16, 2026: $36.98Apr 17, 2026: $37.69Apr 20, 2026: $37.44Apr 21, 2026: $37.52Apr 22, 2026: $38.01Apr 23, 2026: $38.65Apr 24, 2026: $40.28Apr 27, 2026: $41.35Apr 28, 2026: $41.46Apr 29, 2026: $39.80Apr 30, 2026: $40.83May 1, 2026: $41.91May 4, 2026: $39.84May 5, 2026: $41.35May 6, 2026: $41.61May 7, 2026: $41.16May 8, 2026: $43.99May 11, 2026: $43.08May 12, 2026: $43.55May 13, 2026: $42.69May 14, 2026: $42.41May 15, 2026: $40.68May 18, 2026: $40.39May 19, 2026: $38.31May 20, 2026: $39.20May 21, 2026: $39.63May 22, 2026: $40.36May 26, 2026: $41.54May 27, 2026: $42.73May 28, 2026: $41.29May 29, 2026: $40.80Jun 1, 2026: $41.19Jun 2, 2026: $42.48Jun 3, 2026: $43.09Jun 4, 2026: $42.16Jun 5, 2026: $40.81Jun 8, 2026: $41.22Jun 9, 2026: $41.86Jun 10, 2026: $41.68Jun 11, 2026: $41.52Jun 12, 2026: $43.41Jun 15, 2026: $44.40Jun 16, 2026: $44.50Jun 17, 2026: $43.65Jun 18, 2026: $43.73Jun 22, 2026: $44.42Jun 23, 2026: $42.90Jun 24, 2026: $43.88Jun 25, 2026: $44.70Jun 26, 2026: $45.12Jun 29, 2026: $45.36Jun 30, 2026: $44.90Jul 1, 2026: $44.56Jul 2, 2026: $46.21Jul 6, 2026: $47.10Jul 7, 2026: $46.76Jul 8, 2026: $47.40Jul 9, 2026: $46.59Jul 10, 2026: $47.56Jul 13, 2026: $47.77Jul 14, 2026: $48.53Jul 15, 2026: $48.47Jul 16, 2026: $49.05Jul 17, 2026: $49.14Jul 20, 2026: $49.20Jul 21, 2026: $51.47Jul 22, 2026: $51.17Jul 23, 2026: $49.96Jul 24, 2026: $50.22Jul 27, 2026: $49.61Jul 28, 2026: $50.20Jul 29, 2026: $49.21Jul 30, 2026: $48.98Jul 31, 2026: $49.02Aug 3, 2026: $50.73Aug 4, 2026: $51.99Aug 5, 2026: $51.03Aug 6, 2026: $52.33Aug 7, 2026: $51.24Aug 10, 2026: $50.54Aug 11, 2026: $46.01Aug 12, 2026: $45.34Aug 13, 2026: $46.22Aug 14, 2026: $47.14Aug 17, 2026: $47.45Aug 18, 2026: $45.44Aug 19, 2026: $44.90Aug 20, 2026: $45.88Aug 21, 2026: $45.19Aug 24, 2026: $45.83Aug 25, 2026: $46.13Aug 26, 2026: $46.34Aug 27, 2026: $46.32Aug 28, 2026: $46.56Aug 31, 2026: $45.87Sep 1, 2026: $45.93Sep 2, 2026: $46.72Sep 3, 2026: $46.86Sep 4, 2026: $47.78Sep 8, 2026: $47.12Sep 9, 2026: $46.06Sep 10, 2026: $46.35Sep 11, 2026: $46.35Sep 14, 2026: $46.00Sep 15, 2026: $45.79Sep 16, 2026: $46.72Sep 17, 2026: $46.18Sep 18, 2026: $45.33Sep 21, 2026: $45.61Sep 22, 2026: $46.10Sep 23, 2026: $46.26Sep 24, 2026: $45.96Sep 25, 2026: $46.27Sep 28, 2026: $46.17Sep 29, 2026: $46.08Sep 30, 2026: $45.59Oct 1, 2026: $45.19Oct 2, 2026: $46.04Oct 5, 2026: $47.04Oct 6, 2026: $46.03Oct 7, 2026: $43.88Oct 8, 2026: $44.24Oct 9, 2026: $43.41Oct 12, 2026: $43.10Oct 13, 2026: $44.41Oct 14, 2026: $43.67Oct 15, 2026: $43.44Oct 16, 2026: $43.32Oct 19, 2026: $42.91Oct 20, 2026: $41.70Oct 21, 2026: $41.34Oct 22, 2026: $40.75Oct 23, 2026: $40.18Oct 26, 2026: $39.83Oct 27, 2026: $41.44Oct 28, 2026: $42.08Oct 29, 2026: $41.86Oct 30, 2026: $41.50Nov 2, 2026: $41.83Nov 3, 2026: $41.80Nov 4, 2026: $42.89Nov 5, 2026: $39.64Nov 6, 2026: $29.97Nov 9, 2026: $29.33Nov 10, 2026: $29.61Nov 11, 2026: $31.26Nov 12, 2026: $31.70Nov 13, 2026: $31.16
Nov 13, 2025Low $26.67 · High $52.33Nov 13, 2026
Congress purchase Congress sale Insider sale over $1M

Adjusted for stock splits; not for dividends. Where prices come from.

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