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 | AIGH Capital Management LLC CIK 1835943 · View history | $40.13M 1,008,469 shares | 3.63% | +1.01MNew | SEC filing ↗ Aug 7, 2026 | ▾ |
| 02 | BlackRock, Inc. CIK 2012383 · View history | $38.10M 957,424 shares | 0.00% | +59.56K(+6.6%)Added | SEC filing ↗ Aug 7, 2026 | ▾ |
| 03 | ACK Asset Management LLC CIK 1510940 · View history | $32.24M 810,200 shares | 3.76% | +75.00K(+10.2%)Added | SEC filing ↗ Aug 13, 2026 | ▾ |
| 04 | VANGUARD CAPITAL MANAGEMENT LLC CIK 2100119 · View history | $19.17M 481,816 shares | 0.00% | -28.02K(-5.5%)Reduced | SEC filing ↗ Aug 13, 2026 | ▾ |
| 05 | MAIRS & POWER INC CIK 1070134 · View history | $15.33M 385,257 shares | 0.14% | -346.48K(-47.4%)Reduced | SEC filing ↗ Aug 14, 2026 | ▾ |
| 06 | VANGUARD PORTFOLIO MANAGEMENT LLC CIK 2100121 · View history | $14.77M 371,245 shares | 0.00% | +15.49K(+4.4%)Added | SEC filing ↗ Aug 13, 2026 | ▾ |
| 07 | STATE STREET CORP CIK 93751 · View history | $14.45M 363,209 shares | 0.00% | +40.96K(+12.7%)Added | SEC filing ↗ Aug 7, 2026 | ▾ |
| 08 | DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history | $14.21M 357,104 shares | 0.00% | +3.62K(+1.0%)Added | SEC filing ↗ Aug 11, 2026 | ▾ |
| 09 | GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history | $12.02M 302,039 shares | 0.00% | +16.20K(+5.7%)Added | SEC filing ↗ Aug 12, 2026 | ▾ |
| 10 | PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC. CIK 1238990 · View history | $11.05M 277,610 shares | 0.55% | -12.00K(-4.1%)Reduced | SEC filing ↗ Aug 14, 2026 | ▾ |
| 11 | ROYAL BANK OF CANADA CIK 1000275 · View history | $10.43M 262,147 shares | 0.00% | -20.20K(-7.2%)Reduced | SEC filing ↗ Aug 14, 2026 | ▾ |
| 12 | ROYCE & ASSOCIATES LP CIK 906304 · View history | $10.23M 256,990 shares | 0.08% | 0(0.0%)Unchanged | SEC filing ↗ Aug 14, 2026 | ▾ |
| 13 | D. E. Shaw & Co., Inc. CIK 1009207 · View history | $9.06M 227,722 shares | 0.01% | +86.75K(+61.5%)Added | SEC filing ↗ Aug 14, 2026 | ▾ |
| 14 | ACADIAN ASSET MANAGEMENT LLC CIK 916542 · View history | $6.88M 173,069 shares | 0.01% | +11.13K(+6.9%)Added | SEC filing ↗ Aug 13, 2026 | ▾ |
| 15 | Dana Investment Advisors, Inc. CIK 1427514 · View history | $6.43M 161,550 shares | 0.17% | -17.81K(-9.9%)Reduced | SEC filing ↗ Aug 13, 2026 | ▾ |
| 16 | JPMORGAN CHASE & CO CIK 19617 · View history | $6.37M 164,458 shares | 0.00% | -66.73K(-28.9%)Reduced | SEC filing ↗ Aug 12, 2026 | ▾ |
| 17 | MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history | $5.67M 142,431 shares | 0.00% | +94.50K(+197.1%)Added | SEC filing ↗ Aug 14, 2026 | ▾ |
| 18 | GOLDMAN SACHS GROUP INC CIK 886982 · View history | $5.54M 139,129 shares | 0.00% | +63.45K(+83.8%)Added | SEC filing ↗ Aug 14, 2026 | ▾ |
| 19 | CITADEL ADVISORS LLC CIK 1423053 · Amended · View history | $5.25M 131,916 shares | 0.00% | -121.02K(-47.8%)Reduced | SEC filing ↗ Sep 2, 2026 | ▾ |
| 20 | Divisadero Street Capital Management, LP CIK 1901865 · View history | $5.20M 130,783 shares | 0.12% | +130.78KNew | SEC filing ↗ Aug 14, 2026 | ▾ |
Showing 20 / 125 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 125 reporting institutions.
This page includes 20 of 125 reporting institutions. Sign 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 125 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.
MCP https://api.akkrudata.ai/mcp
get_institutional_security_holders
{"cusip":"18482P103","quarter":"2026Q2","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 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.