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MAIRS & POWER INC

Position in CLFD — Clearfield, Inc.

CIK 1070134 St Paul, MN

Position in CLFD

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$15,329,376
-$4,039,596 QoQ
Shares Held
385,257
-47.4% QoQ
Ownership
2.84%
of shares outstanding
% of Portfolio
0.14%
of 13F equity value
Holder Rank
#5
of 125 holders
Holding Since
Dec 2022
15 quarters on record
Voting authority Sole 97% Shared 0% None 3%

Common Shares in CLFD Over Time

Shares Held

Position Value (USD)

Position in Communication Equipment

Technology · as of Jun 30, 2026

MAIRS & POWER INC holds $246,994,281 across 6 Communication Equipment names. CLFD ranks #2 (6.2% of the industry book) .

# Ticker Company Shares Value (USD) Open
2 CLFD
Clearfield, Inc.
This page
385,257 $15,329,376

All Filings in CLFD

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15 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $15,329,376 385,257
2026-03-31 $19,368,972 731,733
2025-12-31 $21,284,980 730,188
2025-09-30 $25,124,663 730,793
2025-06-30 $33,088,577 762,234
2025-03-31 $25,327,978 852,220
2024-12-31 $12,995,386 419,206
2024-09-30 $11,302,529 290,106
2024-06-30 $10,862,197 281,696
2024-03-31 $7,992,679 259,166
2023-12-31 $6,664,583 229,181
2023-09-30 $6,231,429 217,426
2023-06-30 $8,347,331 176,290
2023-03-31 $4,739,747 101,755
2022-12-31 $2,535,190 26,930