Company · Ownership research

Clearfield, Inc. CLFD

CIK 0000796505 · CUSIP 18482P103

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 18482P103 (CLFD), not CUSIP 18482P903 (CLFD), CUSIP 18482P953 (CLFD), and does not merge CUSIPs.

This page lists the top 20 of 125 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	VANGUARD GROUP INC CIK 102909 · View history	$27.63M 947,982 shares	0.00%	+7.98K(+0.80%)Added	SEC filing ↗ Jan 29, 2026	▾
02	BlackRock, Inc. CIK 2012383 · View history	$27.02M 927,046 shares	0.00%	-19.52K(-2.10%)Reduced	SEC filing ↗ Feb 12, 2026	▾
03	MAIRS & POWER INC CIK 1070134 · View history	$21.28M 730,188 shares	0.20%	-605(-0.10%)Reduced	SEC filing ↗ Feb 17, 2026	▾
04	ACK Asset Management LLC CIK 1510940 · View history	$18.22M 625,200 shares	2.29%	0(0.00%)Unchanged	SEC filing ↗ Feb 13, 2026	▾
05	COOPER CREEK PARTNERS MANAGEMENT LLC CIK 1512162 · View history	$13.98M 479,741 shares	0.66%	0(0.00%)Unchanged	SEC filing ↗ Feb 17, 2026	▾
06	ROYCE & ASSOCIATES LP CIK 906304 · View history	$11.07M 379,912 shares	0.11%	-39.89K(-9.50%)Reduced	SEC filing ↗ Feb 9, 2026	▾
07	DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history	$9.23M 316,730 shares	0.00%	-29.10K(-8.40%)Reduced	SEC filing ↗ Feb 12, 2026	▾
08	STATE STREET CORP CIK 93751 · View history	$8.24M 282,599 shares	0.00%	-5.89K(-2.00%)Reduced	SEC filing ↗ Feb 13, 2026	▾
09	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$8.13M 278,866 shares	0.00%	-4.30K(-1.50%)Reduced	SEC filing ↗ Feb 9, 2026	▾
10	PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC. CIK 1238990 · View history	$8.11M 278,110 shares	0.47%	+15.50K(+5.90%)Added	SEC filing ↗ Feb 17, 2026	▾
11	JPMORGAN CHASE & CO CIK 19617 · View history	$7.24M 248,268 shares	0.00%	+28.23K(+12.80%)Added	SEC filing ↗ Feb 11, 2026	▾
12	ROYAL BANK OF CANADA CIK 1000275 · View history	$6.79M 233,101 shares	0.00%	+9.04K(+4.00%)Added	SEC filing ↗ Feb 17, 2026	▾
13	MARSHALL WACE, LLP CIK 1318757 · View history	$4.45M 152,684 shares	0.00%	-10.10K(-6.20%)Reduced	SEC filing ↗ Feb 13, 2026	▾
14	Ancora Advisors LLC CIK 1446114 · View history	$4.20M 143,997 shares	0.09%	-35.64K(-19.80%)Reduced	SEC filing ↗ Feb 17, 2026	▾
15	D. E. Shaw & Co., Inc. CIK 1009207 · View history	$3.95M 135,376 shares	0.00%	+645(+0.50%)Added	SEC filing ↗ Feb 17, 2026	▾
16	Dana Investment Advisors, Inc. CIK 1427514 · View history	$3.78M 129,657 shares	0.11%	-171(-0.10%)Reduced	SEC filing ↗ Feb 5, 2026	▾
17	NORTHERN TRUST CORP CIK 73124 · View history	$3.46M 118,692 shares	0.00%	-7.03K(-5.60%)Reduced	SEC filing ↗ Feb 17, 2026	▾
18	Trexquant Investment LP CIK 1633445 · View history	$3.13M 107,416 shares	0.03%	+18.55K(+20.90%)Added	SEC filing ↗ Feb 17, 2026	▾
19	Select Equity Group, L.P. CIK 1592643 · View history	$3.10M 106,407 shares	0.01%	-47.86K(-31.00%)Reduced	SEC filing ↗ Feb 17, 2026	▾
20	UBS Group AG CIK 1610520 · View history	$3.09M 105,849 shares	0.00%	+12.21K(+13.00%)Added	SEC filing ↗ Jan 29, 2026	▾

Showing 20 / 125 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

125

Cancelled or null records excluded

Disclosed shares

8,531,627

Not deduplicated across managers

Disclosed value

$248.80M

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

Clearfield, Inc. · Q4 2025

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.