What SEC filings does Mueller Industries, Inc. submit to the SEC?

Mueller Industries, Inc. (MLI) submits several types of SEC filings including Form 4 (insider transactions), Form 144 (proposed insider sales), 8-K reports (material events such as earnings releases, acquisitions, leadership changes), and periodic reports — the 10-Q (quarterly) and 10-K (annual). All filings are publicly available through SEC EDGAR.

What does a Form 4 filing tell me about MLI?

A Form 4 for MLI discloses a transaction by a company insider — typically a director, officer, or 10%+ shareholder. It shows the source-reported date, number of shares, price, and updated ownership. These facts do not establish motive or predict future returns.

How do I interpret an 8-K filing from Mueller Industries, Inc.?

An 8-K signals a material event requiring prompt disclosure. Common triggers include earnings pre-announcements, acquisitions, leadership appointments or departures, credit changes, or regulatory actions. Read the item codes inside the filing to understand exactly what was disclosed before drawing conclusions.

What is the difference between a 10-K and 10-Q for MLI?

The 10-K is Mueller Industries, Inc.'s annual report with fully audited financial statements, comprehensive MD&A, and complete risk factor disclosures — filed 60–90 days after fiscal year-end. The 10-Q is a lighter quarterly report with unaudited financials filed for the first three quarters. Together they provide a continuous financial picture of the company.

Where can I see all MLI SEC filings directly on EDGAR?

You can view all historical Mueller Industries, Inc. filings on the SEC EDGAR company page for MLI. Each filing card on this page links directly to the original SEC document.

How often does Mueller Industries, Inc. file with the SEC?

Mueller Industries, Inc. files one 10-K per year and up to three 10-Qs per year. Form 4 insider transactions must be reported within two business days of each trade, so the frequency depends on how often insiders are buying or selling MLI shares. 8-K filings occur whenever a material event happens — which can be several times per quarter for an active company.

MLI SEC Filing News — Mueller Industries, Inc.

Latest SEC filings for Mueller Industries, Inc. (MLI) explained in plain English. Covers insider buying and selling (Form 4), proposed insider sales (Form 144), material company events (8-K), and quarterly & annual reports (10-Q / 10-K). StrongBuyAnalytics provides navigation and brief excerpts or summaries; original filings remain at the SEC/source links and were authored by their filers, not StrongBuyAnalytics. Filing dates shown are source dates. Coverage and detection can be delayed or incomplete because of SEC availability, amendments, parsing, caching, or outages. Latest source filing date shown: 2026-08-27.

Mueller Industries, Inc. manufactures and sells copper, brass, and aluminum products in the United States, the United Kingdom, Canada, Asia and the Middle East, and Mexico. It operates through three segments: Piping Systems, Industrial Metals, and Climate. The Piping Systems segment offers copper tubes, fittings, line sets, and pipe nipples; resells steel pipe, brass and plastic plumbing valves, malleable iron fittings, faucets, and plumbing specialties. This segment sells its products to wholes…

Sector: Industrials Industry: Metal Fabrication Market Cap: $13.4B CIK: 89439

Total Filings

Bullish Classifications

Bearish Classifications

Insider Transactions

Material Events (8-K)

Periodic Reports

Rule-based classifications for MLI currently lean bearish. Of the 20 filing records displayed, 6 carry bearish classifications (such as insider sales or negative 8-K disclosures) versus 0 bullish. This does not necessarily signal fundamental deterioration — insiders sell for many reasons — but it is worth monitoring alongside the company's core financial metrics.

MLI Filing Activity Snapshot 2026-06-02 — 2026-08-27

Insider Transactions (Form 4)

0 buys vs 4 sells

Net insider selling in this period — insiders sell for many reasons beyond conviction.

Largest Form 144 Filing

$30.36M

GREGORY CHRISTIOPHER · 2026-08-10

440,000 shares · Form 144

Form 144 Notices

Proposed insider sales filed — Form 144 is a notice of intent, not a confirmed transaction. Actual sales are confirmed via Form 4.

Insider Transactions 11 · Forms 3, 4 and 5

A Form 4 is filed within two business days of a company insider — an officer, a director, or a holder of more than ten percent of the stock — changing their position in the shares. All 11 filings in this group are Form 4s for Mueller Industries, Inc.

The difficulty with reading these filings as a group is that a single form type covers transactions that mean entirely different things. An executive spending their own money to buy stock and an executive having shares withheld to pay tax on a vesting grant both appear as a Form 4. Every filing below is therefore tagged with the nature of the underlying transaction, taken from the transaction code reported on the form itself.

Across the 11 insider filings shown, the breakdown is 6 compensation award, 4 open-market sale and 1 tax withholding. 4 of them involved a discretionary open-market trade; the rest are compensation and administrative mechanics.

What each transaction type means

Compensation award ×6: Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.
Open-market sale ×4: The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.
Tax withholding ×1: Shares were withheld by the company to settle tax due when equity vested. This is an automatic administrative step and not a decision to sell.

Form 4 Open-market sale Insider Selling 2026-08-27

MLI insider GOLDMAN SCOTT JAY (Director) sold 2,000 shares (~$128.2K)

GOLDMAN SCOTT JAY, listed as Director at MUELLER INDUSTRIES INC, reported an open-market sale of 2,000 MLI shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`S`	Open-market sale	2,000	$64.08	$128.2K

Filing: Form 4 (Insider Transaction) Insider: GOLDMAN SCOTT JAY (Director) Shares: 2,000 Est. Value: $128.2K

View on SEC EDGAR → Open Filing Document →

Form 4 Open-market sale Insider Selling 2026-08-17

MLI insider Martin Jeffrey Andrew (EVP, CFO & Treasurer) sold 86,209 shares (~$5.78M)

Martin Jeffrey Andrew, listed as EVP, CFO & Treasurer at MUELLER INDUSTRIES INC, reported an open-market sale of 86,209 MLI shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`S`	Open-market sale	86,209	$67.03	$5.78M

Filing: Form 4 (Insider Transaction) Insider: Martin Jeffrey Andrew (EVP, CFO & Treasurer) Shares: 86,209 Est. Value: $5.78M

View on SEC EDGAR → Open Filing Document →

Form 4 Open-market sale Insider Selling 2026-08-12

MLI insider Christopher Gregory L. (Director, Chairman of the Board & CEO) sold 340,000 shares (~$23.38M)

Christopher Gregory L., listed as Director, Chairman of the Board & CEO at MUELLER INDUSTRIES INC, reported an open-market sale of 340,000 MLI shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`S`	Open-market sale	70,000	$69.08	$4.84M
`S`	Open-market sale	70,000	$69.43	$4.86M
`S`	Open-market sale	200,000	$68.44	$13.69M

Filing: Form 4 (Insider Transaction) Insider: Christopher Gregory L. (Director, Chairman of the Board & CEO) Shares: 340,000 Est. Value: $23.38M

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-08-05

MLI insider Form 4 filed for equity award, exercise, or tax withholding

Christopher Gregory L. (Director, Chairman of the Board & CEO) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	125,000	—	—

Filing: Form 4 (Insider Transaction) Insider: Christopher Gregory L. (Director, Chairman of the Board & CEO) Shares: 125,000

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-08-05

MLI insider Form 4 filed for equity award, exercise, or tax withholding

Pieralisi Daniel (Executive VP - Admin) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	6,000	—	—

Filing: Form 4 (Insider Transaction) Insider: Pieralisi Daniel (Executive VP - Admin) Shares: 6,000

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-08-05

MLI insider Form 4 filed for equity award, exercise, or tax withholding

Martin Jeffrey Andrew (EVP, CFO & Treasurer) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	34,000	—	—

Filing: Form 4 (Insider Transaction) Insider: Martin Jeffrey Andrew (EVP, CFO & Treasurer) Shares: 34,000

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-08-05

MLI insider Form 4 filed for equity award, exercise, or tax withholding

Miritello Christopher John (EVP, Gen. Counsel, Secretary) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	9,000	—	—

Filing: Form 4 (Insider Transaction) Insider: Miritello Christopher John (EVP, Gen. Counsel, Secretary) Shares: 9,000

View on SEC EDGAR → Open Filing Document →

Form 4 Open-market sale Insider Selling 2026-08-05

MLI insider HANSEN JOHN B (Director) sold 3,444 shares (~$233.6K)

HANSEN JOHN B, listed as Director at MUELLER INDUSTRIES INC, reported an open-market sale of 3,444 MLI shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`S`	Open-market sale	2,444	$67.72	$165.5K
`G`	Gift	250	—	—
`S`	Open-market sale	1,000	$68.13	$68.1K

Filing: Form 4 (Insider Transaction) Insider: HANSEN JOHN B (Director) Shares: 3,444 Est. Value: $233.6K

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-07-31

MLI insider Form 4 filed for equity award, exercise, or tax withholding

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	72,000	—	—
`F`	Tax withholding on vested shares	57,791	$66.57	$3.85M

Filing: Form 4 (Insider Transaction) Insider: Martin Jeffrey Andrew (EVP, CFO & Treasurer) Shares: 129,791

View on SEC EDGAR → Open Filing Document →

Form 4 Tax withholding Tax / Compensation Filing 2026-07-31

MLI insider Form 4 filed for equity award, exercise, or tax withholding

Shares were withheld by the company to settle tax due when equity vested. This is an automatic administrative step and not a decision to sell.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`F`	Tax withholding on vested shares	1,808	$66.57	$120.4K

Filing: Form 4 (Insider Transaction) Insider: Pieralisi Daniel (Executive VP - Admin) Shares: 1,808

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-07-31

MLI insider Form 4 filed for equity award, exercise, or tax withholding

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	270,000	—	—
`F`	Tax withholding on vested shares	205,972	$66.57	$13.71M

Filing: Form 4 (Insider Transaction) Insider: Christopher Gregory L. (Director, Chairman of the Board & CEO) Shares: 475,972

View on SEC EDGAR → Open Filing Document →

Proposed Insider Sales 4 · Form 144

A Form 144 is a notice of intent to sell restricted or control securities. It is not a record that anything was sold. Mueller Industries, Inc. has 4 such notices in this period.

The distinction matters because a Form 144 is frequently reported as though it were a completed insider sale. The filer may sell all of the shares covered, some of them, or none at all, and there is no obligation to update the notice either way. A sale that is actually executed by an officer or director shows up separately on a Form 4, which is the filing to check before treating a proposed sale as a real one.

Form 144 Proposed Insider Sale 2026-08-27

MLI Form 144 filed for proposed insider sale by GOLDMAN SCOTT JAY (2,000 shares) ~$128.2K

GOLDMAN SCOTT JAY filed a Form 144 with the SEC indicating intent to sell MLI (MUELLER INDUSTRIES INC) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: GOLDMAN SCOTT JAY Shares: 2,000 Est. Value: $128.2K

View on SEC EDGAR → Open Filing Document →

Form 144 Large Proposed Insider Sale 2026-08-13

MLI Form 144 filed for proposed insider sale by Jeffrey A. Martin (86,209 shares) ~$5.77M

Jeffrey A. Martin filed a Form 144 with the SEC indicating intent to sell MLI (MUELLER INDUSTRIES INC) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4. The proposed dollar value is large enough to merit attention.

Filing: Form 144 (Proposed Sale Notice) Insider: Jeffrey A. Martin Shares: 86,209 Est. Value: $5.77M

View on SEC EDGAR → Open Filing Document →

Form 144 Large Proposed Insider Sale 2026-08-10

MLI Form 144 filed for proposed insider sale by GREGORY CHRISTIOPHER (440,000 shares) ~$30.36M

GREGORY CHRISTIOPHER filed a Form 144 with the SEC indicating intent to sell MLI (MUELLER INDUSTRIES INC) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4. The proposed dollar value is large enough to merit attention.

Filing: Form 144 (Proposed Sale Notice) Insider: GREGORY CHRISTIOPHER Shares: 440,000 Est. Value: $30.36M

View on SEC EDGAR → Open Filing Document →

Form 144 Proposed Insider Sale 2026-08-04

MLI Form 144 filed for proposed insider sale by HANSEN JOHN B (3,444 shares) ~$232.3K

HANSEN JOHN B filed a Form 144 with the SEC indicating intent to sell MLI (MUELLER INDUSTRIES INC) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: HANSEN JOHN B Shares: 3,444 Est. Value: $232.3K

View on SEC EDGAR → Open Filing Document →

Material Events 4 · Form 8-K

An 8-K reports a material event in the window between scheduled reports. There are 4 in this period for Mueller Industries, Inc. Each 8-K names the item number it is filed under, and that number is the fastest way to tell a routine disclosure from a consequential one.

Item 2.02 is an earnings release, Item 5.02 is a change of directors or officers, and Item 1.01 or 2.01 covers a material agreement or a completed acquisition. Item 7.01 and Item 8.01 are the general-purpose disclosure items and carry no fixed meaning on their own.

Form 8-K Material Company Update 2026-08-10

MLI filed 8-K — material company event

MUELLER INDUSTRIES INC filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)

View on SEC EDGAR → Open Filing Document →

Form 8-K Material Company Update 2026-07-21

MLI filed 8-K — material company event

MUELLER INDUSTRIES INC filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)

View on SEC EDGAR → Open Filing Document →

Form 8-K Material Company Update 2026-07-01

MLI filed 8-K — material company event

MUELLER INDUSTRIES INC filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)

View on SEC EDGAR → Open Filing Document →

Form 8-K Material Company Update 2026-06-02

MLI filed 8-K — material company event

MUELLER INDUSTRIES INC filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)

View on SEC EDGAR → Open Filing Document →

Periodic Reports 1 · Forms 10-K and 10-Q

The periodic reports are where the audited and reviewed financial statements live. This period contains 1 quarterly report (10-Q) for Mueller Industries, Inc.

The two are not equivalent in weight. A 10-K is audited by an external firm and includes the full risk factor disclosure, business description and management discussion; a 10-Q is unaudited, reviewed rather than examined, and much shorter. When a figure in a quarterly report is later revised, the annual report is usually where the correction appears.

An amended report — 10-K/A or 10-Q/A — restates or corrects something in the original filing, and is worth reading against the version it replaces.

Form 10-Q Quarterly Report 2026-07-22

MLI filed Quarterly Report (10-Q)

MUELLER INDUSTRIES INC filed its quarterly report with the SEC. This report includes unaudited financial statements and management discussion for the quarter.

Filing: 10-Q (Quarterly Report)

View on SEC EDGAR → Open Filing Document →

How we classify Mueller Industries, Inc.'s filings

Straight from EDGAR

Each displayed record links to an original source document. StrongBuyAnalytics provides navigation and brief excerpts or summaries, not the filing itself. Parsing may omit context or contain errors, so read the original document in full.

Transaction codes, not guesswork

The nature shown on each insider filing comes from the transaction code the filer entered on the form itself — P for an open-market purchase, A for a compensation award, F for shares withheld to pay tax, M for an option exercise. Where one filing contains several codes, the transaction table lists them line by line.

Why the distinction matters

Insider activity is routinely summarised as buying or selling, which flattens together decisions that mean very different things. Shares withheld for tax on a vesting grant are an automatic administrative step; shares bought on the open market are someone committing their own money at the current price.

What this page does not tell you

A filing records what happened, not why. Form 4 does not always disclose whether a sale was executed under a pre-arranged Rule 10b5-1 plan, and no single filing is a basis for a decision on MLI. Read these alongside the fundamentals rather than in isolation.

Frequently Asked Questions — MLI SEC Filings

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Publisher, sources & limitations — September 15, 2026. StrongBuyAnalytics provides navigation and brief excerpts or summaries for educational use. Original filings remain at SEC EDGAR or other displayed source links; StrongBuyAnalytics does not author them. Filing dates are source dates, not publication dates for this page. Coverage can be delayed, incomplete, amended, or unavailable because of SEC/source availability, parsing, caching, or outages. Verify every material statement in the original filing.

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