Mueller Industries, Inc.
US ˙ NYSE ˙ US6247561029

SecurityMLI / Mueller Industries, Inc.
InstitutionNeuberger Berman Group LLC
Latest Disclosed Ownership576,235 shares
Latest Disclosed Value $ 63,846,787
Neuberger Berman Group LLC reports 14.08% increase in ownership of MLI / Mueller Industries, Inc.

On May 14, 2026 - Neuberger Berman Group LLC filed a 13F-HR form disclosing ownership of 576,235 shares of Mueller Industries, Inc. (US:MLI) valued at $63,846,838 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 505,104 shares of Mueller Industries, Inc.. This represents a change in shares of 14.08% during the quarter. The current value of the position is $76,524,008 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F MUELLER INDUSTRIES Common 624756102 576,235 71,131 14.08 63,847 10.11 0.0248
2026-02-13 2025-12-31 13F MUELLER INDUSTRIES Common 624756102 505,104 38,760 8.31 57,986 22.97 0.0432
2025-11-12 2025-09-30 13F MUELLER INDUSTRIES Common 624756102 466,344 100,361 27.42 47,152 62.12 0.0345
2025-08-25 2025-06-30 13F/A-1 MUELLER INDUSTRIES Common 624756102 365,983 -40,201 -9.90 29,085 -5.96 0.0224
2025-08-13 2025-06-30 13F MUELLER INDUSTRIES Common 624756102 365,983 -40,201 29,085 0.0116
2025-05-13 2025-03-31 13F MUELLER INDUSTRIES Common 624756102 406,184 12,040 3.05 30,927 -1.13 0.0259
2025-02-13 2024-12-31 13F MUELLER INDUSTRIES Common 624756102 394,144 15,083 3.98 31,279 11.36 0.0248
2024-11-14 2024-09-30 13F MUELLER INDUSTRIES Common 624756102 379,061 42,842 12.74 28,088 46.72 0.0219
2024-11-14 2024-06-30 13F/A-1 MUELLER INDUSTRIES Common 624756102 336,219 157,299 87.92 19,144 98.40 0.0157
2024-08-13 2024-06-30 13F MUELLER INDUSTRIES Common 624756102 336,219 157,299 19,144 0.0157
2024-11-14 2024-03-31 13F/A-1 MUELLER INDUSTRIES Common 624756102 178,920 99,661 125.74 9,649 158.20 0.0080
2024-05-13 2024-03-31 13F MUELLER INDUSTRIES Common 624756102 178,920 99,661 9,649 0.0080
2024-11-14 2023-12-31 13F/A-2 MUELLER INDUSTRIES Common 624756102 79,259 66,629 527.55 3,737 293.78 0.0033
2024-02-09 2023-12-31 13F MUELLER INDUSTRIES Common 624756102 79,259 66,629 3,737 0.0033
2023-11-14 2023-09-30 13F MUELLER INDUSTRIES Common 624756102 12,630 -775 -5.78 949 -18.82 0.0009
2023-08-11 2023-06-30 13F MUELLER INDUSTRIES Common 624756102 13,405 7,464 125.64 1,170 168.12 0.0010
2023-05-12 2023-03-31 13F MUELLER INDUSTRIES Common 624756102 5,941 -943 -13.70 437 7.39 0.0004
2023-02-13 2022-12-31 13F MUELLER INDUSTRIES Common 624756102 6,884 2,617 61.33 406 60.47 0.0004
2022-11-15 2022-09-30 13F MUELLER INDUSTRIES Common 624756102 4,267 -33 -0.77 253 10.48 0.0003
2022-08-15 2022-06-30 13F MUELLER INDUSTRIES Common 624756102 4,300 4,300 229 0.0002
2020-08-13 2020-06-30 13F MUELLER INDUSTRIES Common 624756102 0 -15,661 -100.00 0 -100.00
2020-05-14 2020-03-31 13F MUELLER INDUSTRIES Common 624756102 15,661 -516,292 -97.06 375 -97.78 0.0006
2020-02-12 2019-12-31 13F MUELLER INDUSTRIES Common 624756102 531,953 4,555 0.86 16,889 11.66 0.0197
2019-11-13 2019-09-30 13F MUELLER INDUSTRIES Common 624756102 527,398 -237,647 -31.06 15,125 -32.45 0.0185
2019-08-13 2019-06-30 13F MUELLER INDUSTRIES Common 624756102 765,045 -9,924 -1.28 22,392 -7.81 0.0268
2019-05-13 2019-03-31 13F MUELLER INDUSTRIES Common 624756102 774,969 -12,584 -1.60 24,288 32.02 0.0298
2019-02-12 2018-12-31 13F MUELLER INDUSTRIES Common 624756102 787,553 -282,246 -26.38 18,397 -40.66 0.0256
2018-11-16 2018-09-30 13F/A-1 MUELLER INDUSTRIES Common 624756102 1,069,799 -9,766 -0.90 31,003 -2.68 0.0351
2018-11-13 2018-09-30 13F MUELLER INDUSTRIES Common 624756102 1,069,799 -9,766 31,003
2018-08-13 2018-06-30 13F MUELLER INDUSTRIES Common 624756102 1,079,565 -69,904 -6.08 31,858 5.94 0.0352
2018-05-08 2018-03-31 13F MUELLER INDUSTRIES Common 624756102 1,149,469 -67,138 -5.52 30,071 -30.24 0.0344
2018-02-14 2017-12-31 13F MUELLER INDUSTRIES Common 624756102 1,216,607 12,883 1.07 43,105 2.46 0.0495
2017-11-15 2017-09-30 13F MUELLER INDUSTRIES COMMON STOCK 624756102 1,203,724 18,222 1.54 42,070 16.54 0.0526
2017-08-08 2017-06-30 13F MUELLER INDUSTRIES COMMON STOCK 624756102 1,185,502 4,832 0.41 36,099 -10.68 0.0464
2017-05-10 2017-03-31 13F MUELLER INDUSTRIES COMMON STOCK 624756102 1,180,670 547 0.05 40,414 -14.30 0.0522
2017-02-06 2016-12-31 13F MUELLER INDUSTRIES COMMON STOCK 624756102 1,180,123 -17,761 -1.48 47,158 21.43 0.0633
2016-11-02 2016-09-30 13F MUELLER INDUSTRIES COMMON STOCK 624756102 1,197,884 -8,247 -0.68 38,835 1.00 0.0527
2016-08-05 2016-06-30 13F MUELLER INDUSTRIES COMMON STOCK 624756102 1,206,131 2,847 0.24 38,451 8.62 0.0530
2016-05-06 2016-03-31 13F MUELLER INDUSTRIES COMMON STOCK 624756102 1,203,284 357,827 42.32 35,401 54.51 0.0487
2016-01-28 2015-12-31 13F MUELLER INDUSTRIES COMMON STOCK 624756102 845,457 -78,344 -8.48 22,912 -16.15 0.0300
2015-11-10 2015-09-30 13F MUELLER INDUSTRIES COMMON STOCK 624756102 923,801 53,340 6.13 27,326 -9.58 0.0352
2015-07-31 2015-06-30 13F MUELLER INDUSTRIES COMMON STOCK 624756102 870,461 43,955 5.32 30,222 1.21 0.0336
2015-05-06 2015-03-31 13F MUELLER INDUSTRIES COMMON STOCK 624756102 826,506 826,506 0.00 29,862 0.0319
2015-02-05 2014-12-31 13F MUELLER INDUSTRIES COMMON STOCK 624756102 0 -690,450 -100.00 0 -100.00
2014-11-04 2014-09-30 13F MUELLER INDUSTRIES COMMON STOCK 624756102 690,450 208 0.03 19,705 -2.93 0.0202
2014-08-05 2014-06-30 13F MUELLER INDUSTRIES COMMON STOCK 624756102 690,242 17,826 2.65 20,300 0.66 0.0198
2014-05-05 2014-03-31 13F MUELLER INDUSTRIES COMMON STOCK 624756102 672,416 352,333 110.08 20,166 -0.01 0.0205
2014-02-11 2013-12-31 13F MUELLER INDUSTRIES COMMON STOCK 624756102 320,083 -11,901 -3.58 20,168 9.12 0.0207
2013-10-29 2013-09-30 13F/A-1 MUELLER INDUSTRIES COMMON STOCK 624756102 331,984 31,053 10.32 18,482 21.78 0.0205
2013-10-29 2013-09-30 13F MUELLER INDUSTRIES COMMON STOCK 624756102 176,970 8,043
2013-08-13 2013-06-30 13F MUELLER INDUSTRIES COMMON STOCK 624756102 300,931 300,931 15,176 0.0180
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.