Mueller Industries, Inc.
DE ˙ DB ˙ US6247561029
110,10 € ↑3,95 (3,72%)
2026-06-03
AKTIENPREIS
SecurityDE:MUD / Mueller Industries, Inc.
InstitutionRBF Capital, LLC
Latest Disclosed Ownership8,000 shares
Latest Disclosed Value $ 886,400
RBF Capital, LLC ownership in MUD / Mueller Industries, Inc.

On May 18, 2026 - RBF Capital, LLC filed a 13F-HR/A form disclosing ownership of 8,000 shares of Mueller Industries, Inc. (DE:MUD) valued at $740,000 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on February 17, 2026 disclosing 8,000 shares of Mueller Industries, Inc.. This represents a change in shares of 0.00% during the quarter. The current value of the position is $880,800 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)
2026-05-18 2026-03-31 13F/A-1 MUELLER INDS COM 624756102 8,000 0 0.00 886 -3.49 0.0433
2026-05-14 2026-03-31 13F MUELLER INDS COM 624756102 8,000 0 886 0.0464
2026-02-17 2025-12-31 13F/A-1 MUELLER INDS COM 624756102 8,000 0 0.00 918 13.61 0.0408
2026-02-17 2025-12-31 13F MUELLER INDS COM 624756102 8,000 0 918 0.0408
2025-11-14 2025-09-30 13F MUELLER INDS COM 624756102 8,000 0 0.00 809 27.24 0.0361
2025-08-14 2025-06-30 13F MUELLER INDS COM 624756102 8,000 0 0.00 636 4.27 0.0302
2025-05-15 2025-03-31 13F MUELLER INDS COM 624756102 8,000 0 0.00 609 -3.94 0.0366
2025-02-14 2024-12-31 13F MUELLER INDS COM 624756102 8,000 0 0.00 635 7.09 0.0329
2024-11-14 2024-09-30 13F MUELLER INDS COM 624756102 8,000 0 0.00 593 30.11 0.0297
2024-08-14 2024-06-30 13F MUELLER INDS COM 624756102 8,000 0 0.00 456 5.57 0.0262
2024-05-15 2024-03-31 13F MUELLER INDS COM 624756102 8,000 0 0.00 431 14.32 0.0241
2024-02-14 2023-12-31 13F MUELLER INDS COM 624756102 8,000 4,000 100.00 377 25.67 0.0228
2023-11-14 2023-09-30 13F MUELLER INDS COM 624756102 4,000 0 0.00 301 -14.04 0.0198
2023-08-14 2023-06-30 13F MUELLER INDS COM 624756102 4,000 0 0.00 349 19.11 0.0218
2023-05-16 2023-03-31 13F MUELLER INDS COM 624756102 4,000 0 0.00 294 24.15 0.0213
2023-02-14 2022-12-31 13F MUELLER INDS COM 624756102 4,000 0 0.00 236 -0.84 0.0177
2022-11-14 2022-09-30 13F MUELLER INDS COM 624756102 4,000 -4,200 -51.22 238 -45.54 0.0201
2022-08-15 2022-06-30 13F MUELLER INDS COM 624756102 8,200 0 0.00 437 -2.67 0.0304
2022-05-16 2022-03-31 13F MUELLER INDS COM 624756102 8,200 0 0.00 449 -7.61 0.0287
2022-02-14 2021-12-31 13F MUELLER INDS COM 624756102 8,200 0 0.00 486 44.21 0.0299
2021-11-15 2021-09-30 13F MUELLER INDS COM 624756102 8,200 0 0.00 337 -5.07 0.0188
2021-08-16 2021-06-30 13F MUELLER INDS COM 624756102 8,200 0 0.00 355 4.72 0.0198
2021-05-17 2021-03-31 13F MUELLER INDS COM 624756102 8,200 0 0.00 339 18.12 0.0211
2021-03-02 2020-12-31 13F/A-1 MUELLER INDS COM 624756102 8,200 0 0.00 287 29.28 0.0220
2020-11-16 2020-09-30 13F/A-1 MUELLER INDS COM 624756102 8,200 8,200 222 0.0224
2020-11-16 2020-09-30 13F MUELLER INDS COM 624756102 16,500 2,007
2020-05-18 2020-03-31 13F MUELLER INDS COM 624756102 0 -8,200 -100.00 0 -100.00
2020-02-13 2019-12-31 13F MUELLER INDS COM 624756102 8,200 0 0.00 260 10.64 0.0248
2019-11-13 2019-09-30 13F MUELLER INDS COM 624756102 8,200 0 0.00 235 -2.08 0.0263
2019-08-13 2019-06-30 13F MUELLER INDS COM 624756102 8,200 8,200 240 0.0241
2019-05-15 2019-03-31 13F MUELLER INDS COM 624756102 0 -13,000 -100.00 0 -100.00
2019-02-14 2018-12-31 13F MUELLER INDS COM 624756102 13,000 13,000 304 0.0397
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.