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FRONTIER CAPITAL MANAGEMENT CO LLC

Position in MDU — Mdu Resources Group Inc

CIK 351173 Boston, MA

Position in MDU

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$51,935,695
+$871,981 QoQ
Shares Held
2,506,549
-4.2% QoQ
Ownership
1.20%
of shares outstanding
% of Portfolio
0.54%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority Sole 71% Shared 0% None 29%

Common Shares in MDU Over Time

Shares Held

Position Value (USD)

Position in Utilities - Regulated Gas

Utilities · as of Mar 31, 2026

FRONTIER CAPITAL MANAGEMENT CO LLC holds $52,533,969 across 2 Utilities - Regulated Gas names. MDU ranks #1 (98.9% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 MDU
Mdu Resources Group Inc
This page
2,506,549 $51,935,695

All Filings in MDU

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25 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $51,935,695 2,506,549
2025-12-31 $51,063,714 2,615,969
2025-09-30 $53,287,092 2,991,976
2025-06-30 $46,522,869 2,790,814
2025-03-31 $39,411,020 2,330,634
2024-12-31 $38,147,258 2,116,940
2024-09-30 2,134,854
2024-06-30 2,134,928
2024-03-31 2,128,379
2023-12-31 2,141,514
2023-09-30 2,074,241
2023-06-30 1,653,737
2023-03-31 1,351,662
2022-12-31 1,387,020
2022-09-30 1,424,924
2022-06-30 1,294,416
2022-03-31 1,279,083
2021-12-31 1,322,222
2021-09-30 1,334,586
2021-06-30 1,370,571
2021-03-31 1,346,563
2020-12-31 1,851,720
2020-09-30 1,923,481
2020-06-30 1,859,891
2020-03-31 1,794,140