SEC ownership of MUELLER INDUSTRIES INC

Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000089439.

Top shareholders Insider holders Latest transactions

CIK: 0000089439
Symbol: MLI on NYSE
Location: Collierville, TN
Parsed ownership evidence: 13F, 13D/G, and 3/4/5
Lead holder: BlackRock, Inc.
13D/G signal: BlackRock, Inc.
Latest evidence date: 08 May 2026

Ownership snapshot

Top shareholders of MUELLER INDUSTRIES INC (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Lead holder

BlackRock, Inc.

13D/G signal

BlackRock, Inc.

Evidence rows

Latest as of

08 May 2026

13F 13D/G 3/4/5 Lead comparable stake: 8.8% 13D/G row: BlackRock, Inc. Showing first 8 of 50 holder rows. Open remaining rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
BlackRock, Inc.	13F 13D/G Company 13F 13D/G	8.8% from 13D/G	$1,289,319,542 11,636,458 shares	—	31 Mar 2026
VANGUARD CAPITAL MANAGEMENT LLC	13D/G 13F Vanguard Capital Management · Company 13D/G 13F	5.2%	$642,937,276 5,802,683 shares	$0	31 Mar 2026
Gregory L. Christopher	3/4/5 Chairman of the Board & CEO, Director 3/4/5	0.99%	$142,694,960 1,095,423 shares	-$50,555,829	27 Apr 2026
Gary S. Gladstein	3/4/5 Director 3/4/5	0.29%	$35,711,504 322,306 shares	—	08 May 2026
Jeffrey Andrew Martin	3/4/5 EVP, CFO & Treasurer 3/4/5	0.28%	$29,193,873 305,358 shares	-$6,312,729	29 Aug 2025
Christopher John Miritello	3/4/5 EVP, Gen. Counsel, Secretary 3/4/5	0.12%	$1,739,890 131,018 shares mixed-class rows	—	18 Aug 2025
Steffen Sigloch	3/4/5 Chief Manufacturing Officer 3/4/5	0.11%	$10,452,539 119,158 shares	-$1,617,956	30 Jul 2025
John B. Hansen	3/4/5 Director 3/4/5	0.1%	$11,842,968 106,886 shares	-$406,335	08 May 2026

Show 42 additional holder rows in the full holder list

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
Terry Hermanson	3/4/5 Director 3/4/5	0.08%	$9,747,076 87,970 shares	—	08 May 2026
Scott Jay Goldman	3/4/5 Director 3/4/5	0.04%	$4,749,663 42,867 shares	-$987,002	08 May 2026
Charles P. Herzog Jr.	3/4/5 Director 3/4/5	0.03%	$4,173,946 37,671 shares	—	08 May 2026
Elizabeth M. Donovan	3/4/5 Director 3/4/5	0.03%	$3,555,018 32,085 shares	—	08 May 2026
William C. Drummond	3/4/5 Director 3/4/5	0.02%	$2,048,138 18,485 shares	—	08 May 2026
MUELLER INDUSTRIES INC	3/4/5 Executive VP - Admin 3/4/5	0%	$277,000 2,500 shares	—	08 May 2026
Daniel Pieralisi	3/4/5 Executive VP - Admin 3/4/5	0%	$265,920 2,400 shares	—	08 May 2026
FIRST TRUST ADVISORS LP	13F Company 13F	5.1%	$619,839,243 5,594,217 shares	—	31 Mar 2026
VANGUARD PORTFOLIO MANAGEMENT LLC	13F Company 13F	4.4%	$545,432,612 4,922,677 shares	—	31 Mar 2026
AQR CAPITAL MANAGEMENT LLC	13F Company 13F	4.4%	$536,038,434 4,877,511 shares	—	31 Mar 2026
STATE STREET CORP	13F Company 13F	3.2%	$387,788,809 3,499,899 shares	—	31 Mar 2026
GEODE CAPITAL MANAGEMENT, LLC	13F Company 13F	2.7%	$331,142,538 2,988,136 shares	—	31 Mar 2026
GOLDMAN SACHS GROUP INC	13F Company 13F	2%	$250,311,866 2,259,132 shares	—	31 Mar 2026
DIMENSIONAL FUND ADVISORS LP	13F Company 13F	2%	$241,882,701 2,183,228 shares	—	31 Mar 2026
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC	13F Company 13F	1.9%	$233,757,973 2,109,729 shares	—	31 Mar 2026
Allspring Global Investments Holdings, LLC	13F Company 13F	1.8%	$230,135,890 2,045,107 shares	—	31 Mar 2026
Invesco Ltd.	13F Company 13F	1.8%	$222,298,815 2,006,307 shares	—	31 Mar 2026
FMR LLC	13F Company 13F	1.6%	$200,133,251 1,806,257 shares	—	31 Mar 2026
Pictet Asset Management Holding SA	13F Company 13F	1.5%	$185,560,954 1,674,939 shares	—	31 Mar 2026
GAMCO INVESTORS, INC. ET AL	13F Company 13F	1.5%	$181,436,108 1,637,510 shares	—	31 Mar 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	13F Company 13F	1.4%	$169,165,784 1,526,767 shares	—	31 Mar 2026
PRICE T ROWE ASSOCIATES INC /MD/	13F Company 13F	1.3%	$165,217,000 1,491,113 shares	—	31 Mar 2026
LSV ASSET MANAGEMENT	13F Company 13F	1.3%	$161,799,000 1,460,283 shares	—	31 Mar 2026
MORGAN STANLEY	13F Company 13F	1.2%	$142,027,998 1,281,839 shares	—	31 Mar 2026
GABELLI FUNDS LLC	13F Company 13F	1.1%	$136,333,860 1,230,450 shares	—	31 Mar 2026
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F Company 13F	1%	$126,107,242 1,138,152 shares	—	31 Mar 2026
Bank of New York Mellon Corp	13F Company 13F	0.92%	$113,222,784 1,021,866 shares	—	31 Mar 2026
UBS Group AG	13F Company 13F	0.89%	$108,641,505 980,519 shares	—	31 Mar 2026
NORTHERN TRUST CORP	13F Company 13F	0.84%	$102,747,500 927,324 shares	—	31 Mar 2026
AMERICAN CENTURY COMPANIES INC	13F Company 13F	0.75%	$92,552,680 835,313 shares	—	31 Mar 2026
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	13F Company 13F	0.74%	$90,473,962 816,582 shares	—	31 Mar 2026
SYSTEMATIC FINANCIAL MANAGEMENT LP	13F Company 13F	0.71%	$86,943,431 784,687 shares	—	31 Mar 2026
VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P.	13F Company 13F	0.63%	$77,793,234 702,105 shares	—	31 Mar 2026
VANGUARD FIDUCIARY TRUST CO	13F Company 13F	0.62%	$76,321,367 688,821 shares	—	31 Mar 2026
JANUS HENDERSON GROUP PLC	13F Company 13F	0.61%	$74,906,562 676,052 shares	—	31 Mar 2026
JPMORGAN CHASE & CO	13F Company 13F	0.6%	$71,813,525 665,618 shares	—	31 Mar 2026
CAISSE DE DEPOT ET PLACEMENT DU QUEBEC	13F Company 13F	0.6%	$73,723,328 665,373 shares	—	31 Mar 2026
Vest Financial, LLC	13F Company 13F	0.57%	$70,369,080 635,100 shares	—	31 Mar 2026
Fiera Capital Corp	13F Company 13F	0.55%	$67,488,723 609,104 shares	—	31 Mar 2026
Neuberger Berman Group LLC	13F Company 13F	0.52%	$63,846,787 576,235 shares	—	31 Mar 2026
VICTORY CAPITAL MANAGEMENT INC	13F Company 13F	0.5%	$61,278,937 553,059 shares	—	31 Mar 2026
BANK OF AMERICA CORP /DE/	13F Company 13F	0.4%	$49,178,113 443,846 shares	—	31 Mar 2026

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Forms 3/4/5 flow

Insider trading overview

Net insider flow leans to selling over the last 12 months. Net value: -$59,879,850.

Buys

Insiders: 0

Sells

$59,879,850

Insiders: 5

Net

-$59,879,850

Shares: -551,544

Window

Last 12 months

4 rolling buckets

Buy value Sell value

Shares: 0 Shares: 551,544

Window (months)	Sell shares	Buy $	Sell $	Net $
0-3	103,266	$0	$14,177,389	-$14,177,389
3-6	5,430	$0	$643,747	-$643,747
6-9	355,234	$0	$36,944,114	-$36,944,114
9-12	87,614	$0	$8,114,600	-$8,114,600

Reporting owners

Insider holders from Forms 3/4/5

Current reporting-owner rows connected to MUELLER INDUSTRIES INC. Open the relationship link for the CIK-to-CIK filing trail.

Rows

Lead holder

Gregory L. Christopher

Net 12M change

-$59,879,851

Latest report

08 May 2026

Name	Relationship	Holdings Value	Past Year Net Change	Change %	Valuation	Report Date
Gregory L. Christopher	Chairman of the Board & CEO, Director	$142,694,960	-$50,555,829	-26%	Mixed	27 Apr 2026
Gary S. Gladstein	Director	$35,711,504			Median	08 May 2026
Jeffrey Andrew Martin	EVP, CFO & Treasurer	$29,193,873	-$6,312,729	-18%	Filing P/S	29 Aug 2025
John B. Hansen	Director	$11,842,968	-$406,335	-3.3%	Median	08 May 2026
Steffen Sigloch	Chief Manufacturing Officer	$10,452,539	-$1,617,956	-13%	Mixed	30 Jul 2025
Terry Hermanson	Director	$9,747,076			Median	08 May 2026
Scott Jay Goldman	Director	$4,749,663	-$987,002	-17%	Median	08 May 2026
Charles P. Herzog Jr.	Director	$4,173,946			Median	08 May 2026
Elizabeth M. Donovan	Director	$3,555,018			Median	08 May 2026
Gary Westermeyer	President, Refrigeration	$3,098,491			Mixed	02 Aug 2021
William C. Drummond	Director	$2,048,138			Median	08 May 2026
Devin Malone	President, Streamline	$1,872,964			Mixed	30 Jul 2021
Christopher John Miritello	EVP, Gen. Counsel, Secretary	$1,739,890			Mixed	18 Aug 2025
Christopher Andrew Mitchell	President, Canadian Operations	$1,564,200			Mixed	02 Aug 2021
Gennaro J. Fulvio	Director	$1,478,833			Mixed	04 May 2022
Anthony Steinriede	VP - Corporate Controller	$1,117,976			Mixed	26 Oct 2021
MUELLER INDUSTRIES INC	Executive VP - Admin	$277,000			Median	08 May 2026
Daniel Pieralisi	Executive VP - Admin	$265,920			Median	08 May 2026
Mark Millerchip	Exec. Director - European Ops				Mixed	02 Aug 2021

Recent Insider Transactions by Companies or Individuals for MUELLER INDUSTRIES INC

Showing up to 300 most recent insider transactions from the last 12 months.

Insider	Symbol	Class	Transaction	%	Reported value	Reported price	Shares	Shares owned	Date	Ownership
Terry Hermanson	MLI	Common Stock	Award	1.41%			1,222	87,970	08 May 2026	Direct
William C. Drummond	MLI	Common Stock	Award	7.08%			1,222	18,485	08 May 2026	Direct
Scott Jay Goldman	MLI	Common Stock	Award	2.93%			1,222	42,867	08 May 2026	Direct
John B. Hansen	MLI	Common Stock	Award	1.35%			1,222	91,886	08 May 2026	Direct
Elizabeth M. Donovan	MLI	Common Stock	Award	4.55%			1,222	28,085	08 May 2026	Direct
Charles P. Herzog Jr.	MLI	Common Stock	Gift	6.15%			1,222	21,085	08 May 2026	by trust where wife is beneficiary
Charles P. Herzog Jr.	MLI	Common Stock	Gift	-12.5%			-1,222	8,586	08 May 2026	Direct
Charles P. Herzog Jr.	MLI	Common Stock	Award	14.2%			1,222	9,808	08 May 2026	Direct
Gary S. Gladstein	MLI	Common Stock	Award	3.96%			1,222	32,100	08 May 2026	Direct
Gary S. Gladstein	MLI	Common Stock	Tax liability	-2.89%			-919	30,878	01 May 2026	Direct
Gary S. Gladstein	MLI	Common Stock	Options Exercise	44.4%			9,778	31,797	01 May 2026	Direct
Gary S. Gladstein	MLI	Stock Option (Right-to-Buy)	Options Exercise	-100%			-9,778	0	01 May 2026	Direct
Gregory L. Christopher	MLI	Common Stock	Sale	-11.4%	$14,177,389	$137.29	-103,266	804,911	27 Apr 2026	Direct
Terry Hermanson	MLI	Common Stock	Gift	-13.5%			-13,500	86,748	26 Feb 2026	Direct
Gregory L. Christopher	MLI	Common Stock	Gift	-7.01%			-10,128	134,392	25 Feb 2026	by spouse
Gregory L. Christopher	MLI	Common Stock	Gift	-1.79%			-16,544	908,177	25 Feb 2026	Direct
Scott Jay Goldman	MLI	Common Stock	Sale	-9.61%	$527,037	$118.97	-4,430	41,645	13 Feb 2026	Direct
John B. Hansen	MLI	Common Stock	Sale	-1.09%	$116,710	$116.71	-1,000	90,664	09 Feb 2026	Direct
Scott Jay Goldman	MLI	Common Stock	Tax liability	-1.18%			-548	46,075	05 Feb 2026	Direct
Scott Jay Goldman	MLI	Common Stock	Options Exercise	12%			4,978	46,623	05 Feb 2026	Direct
Scott Jay Goldman	MLI	Stock Option (Right-to-Buy)	Options Exercise	-100%			-4,978	0	05 Feb 2026	Direct
Terry Hermanson	MLI	Common Stock	Gift	-0.16%			-161	100,248	24 Dec 2025	Direct
Terry Hermanson	MLI	Common Stock	Gift	-1.11%			-1,127	100,409	23 Dec 2025	Direct
Terry Hermanson	MLI	Common Stock	Gift	-0.17%			-169	101,536	22 Dec 2025	Direct
Terry Hermanson	MLI	Common Stock	Gift	-0.5%			-507	101,705	18 Dec 2025	Direct
Scott Jay Goldman	MLI	Common Stock	Sale	-9.21%	$459,964	$108.64	-4,234	41,745	25 Nov 2025	Direct
Scott Jay Goldman	MLI	Common Stock	Tax liability	-1.22%			-566	45,979	19 Nov 2025	Direct
Scott Jay Goldman	MLI	Common Stock	Options Exercise	11.5%			4,800	46,545	19 Nov 2025	Direct
Scott Jay Goldman	MLI	Stock Option (Right-to-Buy)	Options Exercise	-49.1%			-4,800	4,978	19 Nov 2025	Direct
Gregory L. Christopher	MLI	Common Stock	Sale	-4.47%	$5,171,000	$103.42	-50,000	1,069,241	27 Oct 2025	Direct
Gregory L. Christopher	MLI	Common Stock	Sale	-51.4%	$7,472,880	$103.79	-72,000	68,000	24 Oct 2025	by trust where wife is beneficiary
Gregory L. Christopher	MLI	Common Stock	Sale	-48.4%	$7,252,000	$103.60	-70,000	74,520	24 Oct 2025	by trust where he is beneficiary
Gregory L. Christopher	MLI	Common Stock	Sale	-12.4%	$16,482,560	$104.32	-158,000	1,119,241	23 Oct 2025	Direct
John B. Hansen	MLI	Common Stock	Sale	-1.08%	$105,710	$105.71	-1,000	91,664	23 Oct 2025	Direct
Jeffrey Andrew Martin	MLI	Common Stock	Sale	-17.8%	$6,312,729	$95.61	-66,029	305,358	29 Aug 2025	Direct
Christopher John Miritello	MLI	Common Stock	Options Exercise	4.24%			5,330	131,018	18 Aug 2025	Direct
Christopher John Miritello	MLI	Stock Option (Right-to-Buy)	Options Exercise	-100%			-5,330	0	18 Aug 2025	Direct
John B. Hansen	MLI	Common Stock	Sale	-6.25%	$91,940	$91.94	-1,000	15,000	12 Aug 2025	by a trust where his wife and children serve as beneficiaries
John B. Hansen	MLI	Common Stock	Sale	-1.07%	$91,975	$91.98	-1,000	92,664	12 Aug 2025	Direct
Jeffrey Andrew Martin	MLI	Common Stock	Award	6.91%			24,000	371,387	04 Aug 2025	Direct
Gregory L. Christopher	MLI	Common Stock	Award	7.58%			90,000	1,277,241	04 Aug 2025	Direct
Christopher John Miritello	MLI	Common Stock	Award	5.45%			6,500	125,688	04 Aug 2025	Direct
Jeffrey Andrew Martin	MLI	Common Stock	Tax liability	-11.1%			-43,571	347,387	30 Jul 2025	Direct
Jeffrey Andrew Martin	MLI	Common Stock	Award	14%			48,000	390,958	30 Jul 2025	Direct
Christopher John Miritello	MLI	Common Stock	Tax liability	-10.8%			-14,353	119,188	30 Jul 2025	Direct
Christopher John Miritello	MLI	Common Stock	Award	12.6%			15,000	133,541	30 Jul 2025	Direct
Gregory L. Christopher	MLI	Common Stock	Tax liability	-9.67%			-127,070	1,187,241	30 Jul 2025	Direct
Gregory L. Christopher	MLI	Common Stock	Award	12.9%			150,000	1,314,311	30 Jul 2025	Direct
Steffen Sigloch	MLI	Common Stock	Tax liability	-27.5%			-45,217	119,158	30 Jul 2025	Direct
Steffen Sigloch	MLI	Common Stock	Award	36.6%			44,000	164,375	30 Jul 2025	Direct

An asterisk next to the price means the reported price is likely invalid.