WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC
Position in MLI — Mueller Industries Inc
CIK 1644956
CHICAGO, IL
Position in MLI
as of Jun 30, 2026
· filed Aug 12, 2026
Position Value
$244,156,067
+$10,398,094 QoQ
Shares Held
3,972,278
-5.9% QoQ
Ownership
1.80%
of shares outstanding
% of Portfolio
0.74%
of 13F equity value
Holder Rank
#10
of 740 holders
Holding Since
Dec 2024
7 quarters on record
Voting authority
Sole 95%
Shared 0%
None 5%
Common Shares in MLI Over Time
Shares Held
Position Value (USD)
Position in Metal Fabrication
Industrials · as of Jun 30, 2026WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC holds $508,824,191 across 4 Metal Fabrication names. MLI ranks #1 (48.0% of the industry book) .
All Filings in MLI
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7 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $244,156,067 | 1,986,139 | Shares | Sole | 2026-08-12 | |
| 2026-03-31 | $233,757,973 | 2,109,729 | Shares | Sole | 2026-05-08 | |
| 2025-12-31 | $204,333,208 | 1,779,906 | Shares | Sole | 2026-02-09 | |
| 2025-09-30 | $201,701,811 | 1,994,875 | Shares | Sole | 2025-11-12 | |
| 2025-06-30 | $184,336,148 | 2,319,569 | Shares | Sole | 2025-07-29 | |
| 2025-03-31 | $179,383,631 | 2,355,971 | Shares | Sole | 2025-05-09 | |
| 2024-12-31 | $201,375,841 | 2,537,498 | Shares | Sole | 2025-02-10 | |
| No filing history on record for this holder in this stock. | ||||||