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SEC Form 4 reporting owner

Mawer Stephen P

Mawer Stephen P has filed 13 Form 4 transactions reported between February 24, 2026 and September 25, 2026, as Director of Calumet, Inc. /DE.

Name as filed: Mawer Stephen P

Follow Mawer Stephen P and get an alert on every new Form 4

Mawer Stephen P holds 348,410 shares of CLMT, worth $17.5M, 0.40% of the company.

As of their Sep 25, 2026 Form 4 (filed Sep 28, 2026) · the filing on SEC EDGAR · valued at the live price of $50.12 · 87.9M shares outstanding on Aug 7, 2026

Open-market buys, 24 mo
None
reported
Open-market sales, 24 mo
None
reported
Companies
1
with Form 4 filings
Latest transaction
Sep 25, 2026
transaction date

Roles and reported holdings

Transaction history

All 13 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

DateCompanyTypeSharesValueFiling
Sep 25, 2026CLMTDirectorOpen-market saleCode S · direct24,555—Form 4
Sep 25, 2026CLMTDirectorOption exerciseCode M · direct61,387—Form 4
Aug 20, 2026CLMTDirectorGrant or awardCode A · direct230—Form 4
Aug 20, 2026CLMTDirectorGrant or awardCode A · direct690—Form 4
Jul 9, 2026CLMTDirectorShares withheld for tax or exercise priceCode F · direct5,512—Form 4
Jul 9, 2026CLMTDirectorOption exerciseCode M · direct13,780—Form 4
Jun 2, 2026CLMTGrant or awardCode A · direct6,092—Form 4
May 28, 2026CLMTGrant or awardCode A · direct322—Form 4
May 28, 2026CLMTGrant or awardCode A · direct968—Form 4
Mar 9, 2026CLMTShares withheld for tax or exercise priceCode F · direct12,589—Form 4
Mar 9, 2026CLMTOption exerciseCode M · direct27,806—Form 4
Feb 24, 2026CLMTGrant or awardCode A · direct391—Form 4
Feb 24, 2026CLMTGrant or awardCode A · direct1,175—Form 4

How this page is built

Every row comes from a Form 4 filed with the SEC, which officers, directors and holders of more than 10% of a company’s stock must file within two business days of a trade. Transactions are grouped by the reporting owner’s name as filed (spacing, capitals and punctuation ignored); two different people filing under an identical name would appear together, and one person filing under two spellings appears on two pages.

Open-market totals count code P purchases and code S sales over the last 24 months. The same trade reported on more than one filing is counted once; when another owner (for example a fund and its general partner) reports the identical trade, they are listed beside it. Holdings are the shares each ownership line is left at by the person’s latest Form 4, 4/A or 5: held directly, and through each trust or entity named on the filing. A second class of common stock that converts into the listed one counts as shares; options and restricted stock units are listed but not counted. Value uses the latest trade or close, and the share of the company uses the latest shares-outstanding count the company reported. Where a filing has not yet been read line by line, the figure comes from the latest direct and indirect lines that traded and is shown as “at least”.

This page describes what was filed with the SEC; it is not investment advice or a recommendation to buy or sell any security.