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FRONTIER CAPITAL MANAGEMENT CO LLC

Position in KNF — Knife River Corp

CIK 351173 Boston, MA

Position in KNF

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$28,389,137
-$5,045,476 QoQ
Shares Held
339,380
-17.1% QoQ
Ownership
0.598%
of shares outstanding
% of Portfolio
0.26%
of 13F equity value
Holder Rank
#33
of 390 holders
Holding Since
Jun 2023
13 quarters on record
Voting authority Sole 62% Shared 0% None 38%

Common Shares in KNF Over Time

Shares Held

Position Value (USD)

Position in Building Materials

Basic Materials · as of Jun 30, 2026

FRONTIER CAPITAL MANAGEMENT CO LLC holds $148,473,339 across 3 Building Materials names. KNF ranks #2 (19.1% of the industry book) .

# Ticker Company Shares Value (USD) Open
2 KNF
Knife River Corp
This page
339,380 $28,389,137

All Filings in KNF

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13 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $28,389,137 339,380
2026-03-31 $33,434,613 409,487
2025-12-31 $30,075,469 427,512
2025-09-30 $21,623,761 281,303
2025-06-30 $18,349,814 224,765
2025-03-31 $23,163,582 256,774
2024-12-31 $45,296,170 445,653
2024-09-30 $47,388,857 530,136
2024-06-30 $22,950,298 327,207
2024-03-31 $26,434,512 326,030
2023-12-31 $22,374,332 338,083
2023-09-30 $16,771,102 343,459
2023-06-30 $14,962,216 343,959