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Equibles

FRONTIER CAPITAL MANAGEMENT CO LLC

Position in MDU — Mdu Resources Group Inc

CIK 351173 Boston, MA
Back to MDU Full portfolio

Position in MDU

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$42,158,395
-$9,777,300 QoQ
Shares Held
1,987,666
-20.7% QoQ
Ownership
0.945%
of shares outstanding
% of Portfolio
0.39%
of 13F equity value
Holder Rank
#20
of 438 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority Sole 63% Shared 0% None 37%

Common Shares in MDU Over Time

Shares Held

Position Value (USD)

Position in Utilities - Regulated Gas

Utilities · as of Jun 30, 2026

FRONTIER CAPITAL MANAGEMENT CO LLC holds $42,781,775 across 2 Utilities - Regulated Gas names. MDU ranks #1 (98.5% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 MDU
Mdu Resources Group Inc
This page 		1,987,666 $42,158,395
2 NI
Nisource Inc.
 13,110 $623,380

All Filings in MDU

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26 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $42,158,395 1,987,666
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 $58,516,365 2,134,854
2024-06-30 $53,586,626 2,134,928
2024-03-31 $53,635,078 2,128,379
2023-12-31 $42,401,864 2,141,514
2023-09-30 $40,613,468 2,074,241
2023-06-30 $34,629,228 1,653,737
2023-03-31 $41,198,798 1,351,662
2022-12-31 $42,082,091 1,387,020
2022-09-30 $38,971,692 1,424,924
2022-06-30 $34,936,266 1,294,416
2022-03-31 $34,087,484 1,279,083
2021-12-31 $40,777,157 1,322,222
2021-09-30 $39,597,299 1,334,586
2021-06-30 $42,953,800 1,370,571
2021-03-31 $42,564,725 1,346,563
2020-12-31 $48,774,075 1,851,720
2020-09-30 $43,278,286 1,923,481
2020-06-30 $41,252,241 1,859,891
2020-03-31 $38,574,187 1,794,140