KOP compared with AMPH: revenue, margins and what each company keeps, and the suppliers and customers both name

KOPKoppers Holdings Inc.

Mkt capRevenueRevenue

AMPHAmphastar Pharmaceuticals, Inc.

Mkt capRevenueRevenue

Compare

KOPKoppers Holdings Inc.

AMPHAmphastar Pharmaceuticals, Inc.

Price

Mkt cap

Revenue

Revenue flow Supply chain Price Co-movers Event sensitivity Earnings history

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Supply-chain overlap

News Findings Companies A–Z Pricing Methodology Sources Corrections About Terms

Not investment advice. Not a broker-dealer. Indices shown as ETF proxies. Supply-chain data CC BY 4.0; market data not redistributable.

Listed on One’s Vibe · live-checked · Oct ’26

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Supply-chain overlap

direct ties · both sidesSources ›

direct ties · both sides

Only KOP 2

—Class I railroadsunlistedcustomer

—Brown Woodunlistedcustomer

Shared 0

No shared counterparties.

Only AMPH 1

MNKDMannkindcustomer

Role chip = supplier or customer—= no ticker (unlisted)Source: SEC EDGAR

KOPKoppers Holdings Inc.

41.27▼−1.42%· post 41.27

Mkt cap$784.8MRevenue$520MQ2 FY26Revenue$1.9BFY25

AMPHAmphastar Pharmaceuticals, Inc.

27.72▲+2.94%· post 27.72

ClosedOct 30 '26

Mkt cap$1.2BRevenue$184MQ2 FY26Revenue$720MFY25

Compare

ClosedOct 30 '26

KOPKoppers Holdings Inc.

AMPHAmphastar Pharmaceuticals, Inc.

41.27▼−1.42%post 41.27

Price

27.72▲+2.94%post 27.72

$784.8M

Mkt cap

$1.2B

Q2 FY26$520M

Revenue

$184MQ2 FY26

FY25$1.9B

Revenue

$720MFY25

KOP41.27▼−1.42%vsAMPH27.72▲+2.94%ClosedOct 30 '26