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Disclosery

CLFD CLEARFIELD INC

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COMMON STOCK (common), issuer CIK 796505

122 managers (126 13F filers) reported a position in CLFD shares at 2026-03-31, 8,217,367 shares in all. 15 filers opened a position and 14 filers sold out during the quarter.

Managers
122
13F filers
126
New
15
Added
39
Reduced
44
Sold out
14
Shares held by filers
8,217,367

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
VANGUARD GROUP INCgroup of 4 filers holding945,071$25MnewTimeline
BlackRock, Inc.in group BlackRock, Inc.897,868$23.8M<0.01%-29,17813F-HRTimelineGroup
ACK Asset Management LLC735,200$19.5M2.43%+110,00013F-HRTimeline
MAIRS & POWER INC731,733$19.4M0.2%+1,54513F-HRTimeline
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP353,486$9.36M<0.01%+36,75613F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP322,245$8.53M<0.01%+39,64613F-HRTimelineGroup
PUNCH & ASSOCIATES INVESTMENT MANAGEMEN…289,610$7.67M0.44%+11,50013F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC285,841$7.57M<0.01%+6,97513F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA282,350$7.47M<0.01%+49,24913F-HRTimelineGroup
ROYCE & ASSOCIATES LP256,990$6.8M0.07%-122,92213F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC252,936$6.7M<0.01%+191,28913F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO231,189$6.16M<0.01%-17,07913F-HR/ATimelineGroup
Dana Investment Advisors, Inc.179,362$4.75M0.14%+49,70513F-HRTimeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC161,935$4.29M0.01%+59,02913F-HRTimelineGroup
MARSHALL WACE, LLPin group MARSHALL WACE, LLP141,659$3.75M<0.01%-11,02513F-HRTimelineGroup
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.140,972$3.73M<0.01%+5,59613F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC136,700$3.62M0.01%+35,00013F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP121,950$3.23M<0.01%+3,25813F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/115,156$3.05M<0.01%+11,79813F-HRTimelineGroup
Ancora Advisors LLCin group Ancora Advisors LLC112,037$2.97M0.06%-31,96013F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co93,717$2.48M<0.01%-3,13013F-HRTimelineGroup
Trexquant Investment LP90,956$2.41M0.02%-16,46013F-HRTimeline
TUDOR INVESTMENT CORP ET AL83,421$2.21M0.01%+2,91413F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC75,680$2M<0.01%+7,63113F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…71,390$1.89M<0.01%-32,27513F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding70,942$1.88M-35,142Timeline
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPin group ARROWSTREET CAPITAL, LIMITED …70,339$1.86M<0.01%-1,04213F-HRTimelineGroup
WEALTH ENHANCEMENT ADVISORY SERVICES, L…53,823$1.43M<0.01%+16413F-HRTimeline
Drum Hill Capital, LLC51,276$1.36M1.25%+1,36413F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC47,933$1.27M<0.01%+6,10213F-HRTimelineGroup
Wealth Group Ltd47,000$1.24M0.28%013F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC46,895$1.24M<0.01%-40,44913F-HRTimelineGroup
CREDIT AGRICOLE S Ain group CREDIT AGRICOLE S A42,000$1.11M<0.01%+14,00013F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY41,428$1.1M<0.01%-11,33413F-HRTimelineGroup
Qube Research & Technologies Ltd39,943$1.06M<0.01%+27,64513F-HRTimeline
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC38,549$1.02M<0.01%-2,85413F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…36,486$966K<0.01%+26,88913F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp33,899$897K<0.01%-16813F-HRTimelineGroup
PRINCIPAL FINANCIAL GROUP INCin group PRINCIPAL FINANCIAL GROUP INC32,824$869K<0.01%-1,43313F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.29,130$771K<0.01%-46313F-HRTimelineGroup
ExodusPoint Capital Management, LP26,158$692K0.01%-5,00613F-HRTimeline
Campbell & CO Investment Adviser LLC23,855$631K0.04%+11,91513F-HRTimeline
Nuveen, LLCin group TIAA23,566$624K<0.01%+12813F-HRTimelineGroup
XTX Topco Ltdin group XTX Topco Ltd21,468$568K0.01%+6,20313F-HRTimelineGroup
HRT FINANCIAL LP21,341$564K<0.01%new13F-HRTimeline
Nierenberg Investment Management Compan…16,510$437K0.22%013F-HRTimeline
RHUMBLINE ADVISERS16,508$437K<0.01%-40313F-HRTimeline
ALLIANCEBERNSTEIN L.P.14,974$436K<0.01%-67213F-HRTimeline
EntryPoint Capital, LLC15,447$409K0.12%-4,31013F-HRTimeline
MANGROVE PARTNERS IM, LLC15,187$402K0.03%013F-HRTimeline
LOS ANGELES CAPITAL MANAGEMENT LLC15,002$397K<0.01%+12,84013F-HRTimeline
Connor, Clark & Lunn Investment Managem…14,365$380K<0.01%new13F-HRTimeline
Creative Planningin group Creative Planning13,802$365K<0.01%+78813F-HRTimelineGroup
Dorsey & Whitney Trust CO LLC13,240$350K0.02%+44013F-HRTimeline
PRICE T ROWE ASSOCIATES INC /MD/12,642$335K<0.01%+2,02413F-HRTimeline
Sequoia Financial Advisors, LLC12,433$329K<0.01%-8,59013F-HRTimeline
High Note Wealth, LLC12,375$328K0.06%013F-HRTimeline
Quadrature Capital Ltdin group Quadrature Capital Ltd11,387$301K<0.01%new13F-HRTimelineGroup
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC10,719$284K<0.01%-86013F-HRTimelineGroup
NANO CAP NEW MILLENNIUM GROWTH FUND L P10,500$278K0.26%new13F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\10,381$275K<0.01%+1,55613F-HRTimelineGroup
Linden Thomas Advisory Services, LLC9,697$257K0.02%new13F-HRTimeline
CAXTON ASSOCIATES LLP9,538$252K0.01%013F-HRTimeline
LPL Financial LLC7,590$201K<0.01%-12713F-HRTimeline
BARD ASSOCIATES INC7,523$199K0.05%-18713F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…7,353$195K<0.01%013F-HRTimelineGroup
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…5,467$145K<0.01%+13613F-HRTimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND5,109$135K<0.01%013F-HRTimeline
State of Wyoming4,582$121K0.01%-7,68813F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN4,504$119K<0.01%-8,94713F-HR/ATimelineGroup
Cetera Trust Company, N.A3,750$99.3K0.06%-50013F-HRTimeline
Police & Firemen's Retirement System of…3,746$99.2K<0.01%+1,28113F-HRTimeline
FMR LLCin group FMR LLC2,784$73.7K<0.01%-34713F-HRTimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.2,713$71.8K<0.01%-30013F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS2,503$66.3K<0.01%-4513F-HRTimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…2,130$56.4K<0.01%+1,27013F-HRTimelineGroup
CITIGROUP INCin group CITIGROUP INC1,944$51.5K<0.01%-88313F-HRTimelineGroup
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…1,665$44.1K<0.01%-8013F-HRTimelineGroup
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP1,440$39.8K<0.01%013F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc1,055$27.9K<0.01%-6713F-HRTimelineGroup
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…961$25.4K<0.01%013F-HRTimelineGroup
US BANCORP \DE\in group US BANCORP \DE\865$22.9K<0.01%-3113F-HRTimelineGroup
CWM, LLCin group CWM, LLC684$18.1K<0.01%+2713F-HRTimelineGroup
Pinnacle Wealth Planning Services, Inc.651$17.2K<0.01%013F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…622$16.5K<0.01%-8613F-HRTimeline
State of Alaska, Department of Revenue626$16K<0.01%013F-HRTimeline
Aquatic Capital Management LLC451$11.9K<0.01%-3,93313F-HRTimeline
QUADRANT CAPITAL GROUP LLC371$9.82K<0.01%013F-HR/ATimeline
SIMPLEX TRADING, LLC350$9.26K<0.01%new13F-HRTimeline
HUNTINGTON NATIONAL BANKin group HUNTINGTON NATIONAL BANK301$7.97K<0.01%013F-HRTimelineGroup
SHP Wealth Management300$7.94K<0.01%new13F-HRTimeline
Sterling Capital Management LLC248$6.57K<0.01%-15913F-HRTimeline
Vermillion Wealth Management, Inc.200$5.29K<0.01%013F-HRTimeline
Birchwood Financial Partners, Inc.200$5.29K0.01%013F-HRTimeline
Evelyn Partners Investment Management S…in group Evelyn Partners Group Ltd194$5.13K<0.01%013F-HRTimelineGroup
NISA INVESTMENT ADVISORS, LLC188$4.98K<0.01%-17113F-HRTimeline
FIFTH THIRD BANCORPin group FIFTH THIRD BANK, NATIONAL AS…165$4.38K<0.01%new13F-HRTimelineGroup
JNBA Financial Advisors150$3.97K<0.01%013F-HRTimeline
Arax Advisory Partners71$3.85K<0.01%+6813F-HRTimeline
Versant Capital Management, Inc141$3.73K<0.01%013F-HRTimeline
GAMMA Investing LLC136$3.6K<0.01%+113F-HRTimeline
BARROW HANLEY MEWHINNEY & STRAUSS LLC132$3.49K<0.01%new13F-HRTimeline
Optiver Holding B.V.in group Optiver Holding B.V.114$3.02K<0.01%+813F-HR/ATimelineGroup
Ares Financial Consulting, LLC113$2.94K<0.01%013F-HRTimeline
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.38$1.01K<0.01%-1313F-HRTimelineGroup
Larson Financial Group LLC37$979<0.01%013F-HRTimeline
Farther Finance Advisors, LLC37$963<0.01%-913F-HRTimeline
Smartleaf Asset Management LLC34$906<0.01%-15813F-HRTimeline
BAYBAN28$741<0.01%new13F-HRTimeline
SBI Securities Co., Ltd.21$556<0.01%-213F-HRTimeline
ROTHSCHILD INVESTMENT LLC10$265<0.01%013F-HRTimeline
NewEdge Advisors, LLC10$265<0.01%-18513F-HR/ATimeline
Root Financial Partners, LLC10$265<0.01%new13F-HRTimeline
Allworth Financial LP9$239<0.01%new13F-HRTimeline
True Wealth Design, LLC7$186<0.01%-213F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…3$79<0.01%new13F-HR/ATimelineGroup
GHP Investment Advisors, Inc.2$53<0.01%new13F-HRTimeline
MAI Capital Management1$27<0.01%new13F-HRTimeline
Parkside Financial Bank & Trust1$27<0.01%013F-HRTimeline
Kilter Group LLC1$27<0.01%013F-HRTimeline
Aventura Private Wealth, LLC1$26<0.01%013F-HRTimeline
Covestor Ltd9$00%+413F-HRTimelineValue filed as zero, left out of ratios.