Changes in Beneficial Ownership · 4

Calumet, Inc.

CLMTNASDAQEQUITYCurrent

Changes in Beneficial Ownership

Filed Aug 21, 2026Accepted Aug 21, 2026, 4:05 PM EDTFiling CIK 2013745Accession 0001619679-26-000006

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Structured filing — 4

wk-form4_1787342725.xml

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Filing details

Report period: 2026-08-20
Issuer: Calumet, Inc. /DE
Issuer CIK: 0002013745
Trading symbol: CLMT

Reporting owner 1

Name: Schumacher Amy M
Reporting owner CIK: 0001619679
Relationship: Director
Address: 1060 N CAPITOL AVE, SUITE 6-401, INDIANAPOLIS, IN, 46204

Derivative transactions

Derivative transactions · 2 reported rows
Security	Conversion / exercise price (USD)	Transaction date	Code	Amount	A / D	Price (USD)	Exercisable	Expires	Underlying security	Underlying shares	Owned after	Ownership
Restricted Stock Unit	^[F1]	2026-08-20	A · Form 4	488	A	0	^[F2]	^[F2]	Common Stock, par value $0.01 per share	488	488	D
Restricted Stock Units	^[F1]	2026-08-20	A · Form 4	162	A	0	^[F3]	^[F3]	Common Stock, par value $0.01 per share	162	162	D

Table key

A · Form 4: Acquisition by grant, award or otherwise under Rule 16b-3(d)
A: Acquired
D: Direct

Footnotes

F1: Each Restricted Stock Unit is the economic equivalent of one share of Calumet, Inc. common stock, par value $0.01 per share.↩ 1 ↩ 2
F2: Each Restricted Stock Unit will become settled upon the earlier of the date specified by the reporting person or the reporting person's termination date. Restricted Stock Units are 100% vested.↩ 1 ↩ 2
F3: Each Restricted Stock Unit will be settled upon the earlier of the date specified by the reporting person or the reporting person's termination date pursuant to the Deferred Compensation Plan. 25% of the Restricted Stock Units vest on July 1 of each year beginning on July 1, 2027.↩ 1 ↩ 2

Signature 1

Signed: /s/ Connor J. Egan, as attorney-in-fact
Date: 2026-08-21

Company context

Calumet, Inc. (NASDAQ: CLMT) manufactures, formulates, and markets a diversified slate of specialty branded products and renewable fuels to customers across a broad range of consumer-facing and industrial markets. Calumet is headquartered in Indianapolis, Indiana and operates twelve facilities throughout North America.

Current securities

CLMTNASDAQ · EQUITY · Current

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