Clearfield, Inc. CLFD
CIK 0000796505 · CUSIP 18482P103
Quarter-end disclosures, not live holdings.
Top 20 institutions
Weight means this stock's share of the manager's own portfolio.
| # | Manager | Value | Manager weight | Change vs prior | Source | |
|---|---|---|---|---|---|---|
| 01 | BlackRock, Inc. CIK 2012383 · View history | $32.54M 946,564 shares | 0.00% | -19.12K(-2.00%)Reduced | SEC filing ↗ Nov 12, 2025 | ▾ |
| 02 | VANGUARD GROUP INC CIK 102909 · View history | $32.32M 940,004 shares | 0.00% | +4.14K(+0.40%)Added | SEC filing ↗ Nov 7, 2025 | ▾ |
| 03 | MAIRS & POWER INC CIK 1070134 · View history | $25.12M 730,793 shares | 0.24% | -31.44K(-4.10%)Reduced | SEC filing ↗ Nov 14, 2025 | ▾ |
| 04 | ACK Asset Management LLC CIK 1510940 · View history | $21.49M 625,200 shares | 2.69% | 0(0.00%)Unchanged | SEC filing ↗ Nov 14, 2025 | ▾ |
| 05 | COOPER CREEK PARTNERS MANAGEMENT LLC CIK 1512162 · View history | $16.49M 479,741 shares | 0.62% | +453.17K(+1,705.70%)Added | SEC filing ↗ Nov 14, 2025 | ▾ |
| 06 | ROYCE & ASSOCIATES LP CIK 906304 · View history | $14.43M 419,799 shares | 0.14% | -48.34K(-10.30%)Reduced | SEC filing ↗ Nov 12, 2025 | ▾ |
| 07 | DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history | $11.89M 345,833 shares | 0.00% | +8.29K(+2.50%)Added | SEC filing ↗ Nov 12, 2025 | ▾ |
| 08 | STATE STREET CORP CIK 93751 · View history | $9.92M 288,488 shares | 0.00% | +21.74K(+8.20%)Added | SEC filing ↗ Nov 14, 2025 | ▾ |
| 09 | GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history | $9.74M 283,162 shares | 0.00% | +3.08K(+1.10%)Added | SEC filing ↗ Nov 12, 2025 | ▾ |
| 10 | PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC. CIK 1238990 · View history | $9.03M 262,610 shares | 0.52% | +85.61K(+48.40%)Added | SEC filing ↗ Nov 14, 2025 | ▾ |
| 11 | ROYAL BANK OF CANADA CIK 1000275 · View history | $7.70M 224,056 shares | 0.00% | -42.39K(-15.90%)Reduced | SEC filing ↗ Nov 14, 2025 | ▾ |
| 12 | JPMORGAN CHASE & CO CIK 19617 · Amended · View history | $7.57M 220,042 shares | 0.00% | -27.11K(-11.00%)Reduced | SEC filing ↗ Nov 26, 2025 | ▾ |
| 13 | Ancora Advisors LLC CIK 1446114 · View history | $6.18M 179,640 shares | 0.12% | +146.69K(+445.20%)Added | SEC filing ↗ Nov 14, 2025 | ▾ |
| 14 | MARSHALL WACE, LLP CIK 1318757 · View history | $5.60M 162,787 shares | 0.01% | -8.13K(-4.80%)Reduced | SEC filing ↗ Nov 13, 2025 | ▾ |
| 15 | Russell Investments Group, Ltd. CIK 1692234 · View history | $5.36M 156,014 shares | 0.01% | +115.63K(+286.30%)Added | SEC filing ↗ Nov 13, 2025 | ▾ |
| 16 | Select Equity Group, L.P. CIK 1592643 · View history | $5.30M 154,271 shares | 0.02% | -16.51K(-9.70%)Reduced | SEC filing ↗ Nov 14, 2025 | ▾ |
| 17 | D. E. Shaw & Co., Inc. CIK 1009207 · View history | $4.63M 134,731 shares | 0.00% | +4.91K(+3.80%)Added | SEC filing ↗ Nov 14, 2025 | ▾ |
| 18 | Dana Investment Advisors, Inc. CIK 1427514 · View history | $4.46M 129,828 shares | 0.13% | +17.99K(+16.10%)Added | SEC filing ↗ Nov 10, 2025 | ▾ |
| 19 | NORTHERN TRUST CORP CIK 73124 · View history | $4.32M 125,719 shares | 0.00% | +18.12K(+16.80%)Added | SEC filing ↗ Nov 14, 2025 | ▾ |
| 20 | CITADEL ADVISORS LLC CIK 1423053 · View history | $3.98M 115,663 shares | 0.00% | -197.24K(-63.00%)Reduced | SEC filing ↗ Nov 14, 2025 | ▾ |
Showing 20 / 129 institutions. The complete set is available through the API.
Coverage & totals by quarter
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.
Explore all 129 reporting institutions.
This page includes 20 of 129 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.
- Download CSV
- Earlier quarters
- Advanced screening & filtering
- API & AI access
＋ New accounts get free API credits to explore data beyond ownership filings.
For AI agents & developers
The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. This page lists 20 of 129 reporting institutions; totals use the complete disclosed data.
Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP / CLI.
MCP https://api.akkrudata.ai/mcp
akkru_institutional_holdings
{"action":"holders","cusip":"18482P103","quarter":"2025Q3","type":"positions","page_size":100}Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.
- MCP endpoint
- https://api.akkrudata.ai/mcp
- API / MCP / CLI documentation
- /documents
- llms.txt
- /llms.txt
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.