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13F-HR filed by Yorktown Management & Research Co Inc

Yorktown Management & Research Co Inc filed this 13F-HR for the quarter ended 2026-06-30, filed 2026-07-23, with 249 holding rows worth $163,257,444.

Accession
0001193125-26-313433
Filed
2026-07-23
Accepted by EDGAR
acceptance time not in the bulk data set
Ingested
Source
SEC quarterly data set

Original filing

13F report for Q2 2026

A holdings report, 249 entries on the cover page, a total value of $163,257,444 stated on the cover page (in dollars after the unit check, H1), rows summing to $163,257,444 with VALUE read as dollars as filed, 13F file number 028-12529. The quarter's positions are built on this report. The resolved quarter.

The information table after summing rows of one CUSIP and put or call (H4), with the CUSIP and issuer name as filed. Values in dollars after the unit check (method).

Issuer as filedCUSIPClassAmountValueValue read asType
COMFORT SYS USA INC COM199908104Stock2,960$5,866,572dollars as filed
IES HOLDINGS INC44951W106COM5,510$4,047,977dollars as filed
KLA CORP482480100COM8,900$2,685,219dollars as filed
ISHARES TR46435G102CONV BD ETF20,000$2,434,800dollars as filed
SPDR SER TR78464A359BBG CONV SEC ETF20,000$2,156,400dollars as filed
VANGUARD WHITEHALL FDS921946885COM30,000$2,017,200dollars as filed
GUARDANT HEALTH INC COM40131M109Stock12,500$1,875,375dollars as filed
STONEX GROUP INC861896108COM15,750$1,866,375dollars as filed
FABRINET SHSG3323L100Stock3,150$1,770,552dollars as filed
NOVA LTD COMM7516K103Stock3,220$1,748,267dollars as filed
ACM RESH INC COM CL A00108J109Stock13,300$1,687,637dollars as filed
ARISTA NETWORKS INC040413205COM9,800$1,664,824dollars as filed
iShares iBoxx Inv Grade Corporate Bond ETF464287242SHS15,000$1,636,050dollars as filed
WESCO INTL INC COM95082P105Stock4,550$1,571,706dollars as filed
FTAI AVIATION LTD SHSG3730V105Stock5,800$1,569,074dollars as filed
CECO ENVIRONMENTAL CORP125141101COM17,209$1,561,545dollars as filed
MUELLER INDS INC COM624756102Stock12,400$1,524,332dollars as filed
RBC BEARINGS INC COM75524B104Stock1,970$1,268,798dollars as filed
BLOOM ENERGY CORP093712107COM4,150$1,256,205dollars as filed
AXSOME THERAPEUTICS INC. COM05464T104Stock4,850$1,187,135dollars as filed
DYCOM INDS INC COM267475101Stock2,326$1,176,002dollars as filed
WOODWARD INC COM980745103Stock2,750$1,169,960dollars as filed
CAMTEK LTD ORDM20791105Stock7,050$1,149,996dollars as filed
APPLIED DIGITAL CORP COM NEW038169207Stock30,350$1,132,055dollars as filed
SEMTECH CORP COM816850101Stock6,850$1,108,673dollars as filed
MODINE MFG CO COM607828100Stock4,150$1,108,133dollars as filed
INTERACTIVE BROKERS GROUP INC COM CL A45841N107Stock12,400$1,079,296dollars as filed
FIRSTCASH HOLDINGS INC33768G107COM4,950$1,070,784dollars as filed
XOMETRY INC98423F109CLASS A COM11,050$1,066,546dollars as filed
CURTISS WRIGHT CORP COM231561101Stock1,400$1,060,864dollars as filed
AXONENTERPRISEINC05464C101STOK1,875$1,051,144dollars as filed
SPX TECHNOLOGIES INC78473E103COM4,250$1,041,973dollars as filed
DATADOGINCCLASSA23804L103STOK4,000$1,041,440dollars as filed
DIGI INTL INC253798102COM13,700$1,026,815dollars as filed
LIQUIDIA CORPORATION COM NEW53635D202Stock12,700$1,012,571dollars as filed
IONQ INC COM46222L108Stock18,700$995,962dollars as filed
INSTALLED BLDG PRODS INC45780R101COM4,300$988,312dollars as filed
RAYMOND JAMES FINL INC COM754730109Stock6,450$980,594dollars as filed
ISHARES TR464288687COM32,000$975,680dollars as filed
LUMENTUM HLDGS INC COM55024U109Stock1,125$965,318dollars as filed
FORGENT POWER SOLUTIONS INC34631F102COM SHS CL A17,200$960,792dollars as filed
CASEYS GEN STORES INC147528103COM1,200$953,748dollars as filed
MEDPACE HLDGS INC COM58506Q109Stock1,800$953,262dollars as filed
PENUMBRA INC COM70975L107Stock3,000$947,250dollars as filed
HA SUSTAINABLE INFRA CAP INC41068X100COM23,550$919,628dollars as filed
MASTEC INC COM576323109Stock2,200$915,332dollars as filed
BWX TECHNOLOGIES INC05605H100COM4,700$914,855dollars as filed
MONOLITHIC PWR SYS INC COM609839105Stock650$898,534dollars as filed
LIFESTANCE HEALTH GROUP INC53228F101COM83,600$895,356dollars as filed
CELESTICA INC COM15101Q207Stock2,450$893,760dollars as filed
PERFORMANCE FOOD GROUP CO COM71377A103Stock7,880$880,905dollars as filed
INSMED INC COM PAR $.01457669307Stock7,925$844,964dollars as filed
DENALI THERAPEUTICS INC COM24823R105Stock32,100$825,612dollars as filed
HAWKINS INC420261109COM5,750$817,075dollars as filed
CIENA CORP COM NEW171779309Stock1,650$809,424dollars as filed
LPL FINL HLDGS INC COM50212V100Stock2,850$802,788dollars as filed
RUSH STREET INTERACTIVE INC782011100COM26,900$800,006dollars as filed
ISHARES TR464288513IBOXX HI YD ETF10,000$799,700dollars as filed
ALLEGRO MICROSYSTEMS INC01749D105COM11,300$786,706dollars as filed
ESCO TECHNOLOGIES INC296315104COM2,225$778,839dollars as filed
SAIA INC78709Y105COM1,840$774,934dollars as filed
BEAM THERAPEUTICS INC07373V105COM22,550$773,916dollars as filed
DIGITALOCEAN HLDGS INC COM25402D102Stock4,900$769,447dollars as filed
GOLD FIELDS LTD SPONSORED ADR38059T106ADR22,750$764,173dollars as filed
FORTINET INC COM34959E109Stock4,950$760,419dollars as filed
TG THERAPEUTICS INC COM88322Q108Stock13,700$752,678dollars as filed
KRYSTAL BIOTECH INC COM501147102Stock2,000$743,340dollars as filed
ENSIGN GROUP INC29358P101COM4,600$737,380dollars as filed
TD SYNNEX CORPORATION COM87162W100Stock2,700$721,818dollars as filed
CREDO TECHNOLOGY GROUP HOLDING ORDINARY SHARESG25457105Stock2,650$720,668dollars as filed
PALO ALTO NETWORKS INC697435105COM2,090$712,732dollars as filed
SEZZLE INC78435P105COM3,950$677,939dollars as filed
CHEFS WHSE INC163086101COM7,050$677,505dollars as filed
PDF SOLUTIONS INC693282105COMMON STOCK9,550$676,045dollars as filed
GRAHAM CORP384556106COM5,450$674,656dollars as filed
LIFE TIME GROUP HOLDINGS INC COMMON STOCK53190C102Stock16,450$671,818dollars as filed
PACS GROUP INC69380Q107COM SHS15,600$665,184dollars as filed
KKR & CO INC48251W104COM7,200$660,816dollars as filed
CYTOKINETICS INC23282W605COM NEW7,750$660,223dollars as filed
RAMBUS INC DEL COM750917106Stock4,950$657,063dollars as filed
MIRUM PHARMACEUTICALS INC604749101COM5,600$655,592dollars as filed
ITT INC COM45073V108Stock3,300$652,608dollars as filed
DAVE INC23834J201CLASS A COM NEW1,750$652,033dollars as filed
UNITED STS LIME & MINERALS I911922102COM6,225$651,571dollars as filed
UNITY SOFTWARE INC COM91332U101Stock22,550$644,479dollars as filed
ACADIA PHARMACEUTICALS INC004225108COM25,450$643,885dollars as filed
FRANKLIN ELEC INC COM353514102Stock6,000$643,140dollars as filed
CORE & MAIN INC CL A21874C102Stock13,300$641,725dollars as filed
API GROUP CORP COM STK00187Y100Stock15,150$641,603dollars as filed
NEUROCRINE BIOSCIENCES INC64125C109COM3,750$632,006dollars as filed
TEXAS PACIFIC LAND CORPORATION COM88262P102Stock1,440$630,202dollars as filed
STOCK YDS BANCORP INC861025104COM8,100$619,407dollars as filed
HALOZYME THERAPEUTICS INC COM40637H109Stock7,850$614,420dollars as filed
SUNBELT RENTALS HOLDINGS INC SHS866966104Stock8,200$613,442dollars as filed
LITHIA MTRS INC COM536797103Stock2,100$610,029dollars as filed
TELEDYNE TECHNOLOGIES INC COM879360105Stock900$600,210dollars as filed
WESTERN ALLIANCE BANCORP COM957638109Stock7,200$591,840dollars as filed
EAGLE MATLS INC COM26969P108Stock2,630$591,750dollars as filed
PAMPA ENERGIA SA697660207SPONS ADR LVL I7,200$591,336dollars as filed
EMBRAER S.A.29082A107SPONSORED ADS9,200$586,960dollars as filed
RALPH LAUREN CORP751212101CL A1,460$586,059dollars as filed
AXOSFINLINC05465C100STOK6,000$584,340dollars as filed
AZZ INC COM002474104Stock3,750$581,438dollars as filed
HAMILTON INSURANCE GROUP LTDG42706104CL B16,900$573,586dollars as filed
CONSTRUCTION PARTNERS INC21044C107COM CL A4,800$570,096dollars as filed
CORCEPT THERAPEUTICS INC218352102COM6,500$565,175dollars as filed
KODIAK GAS SVCS INC50012A108COM7,500$563,475dollars as filed
HCI GROUP INC40416E103COM3,200$560,800dollars as filed
HINGE HEALTH INC A433313103COMMON STOCK6,700$556,100dollars as filed
PULTE GROUP INC COM745867101Stock4,000$548,840dollars as filed
ENOVA INTL INC29357K103COM2,250$541,643dollars as filed
DLOCAL LTDG29018101CLASS A COM41,500$539,293dollars as filed
ARGAN INC04010E109COM670$535,029dollars as filed
SHARKNINJA INC COM SHSG8068L108Stock3,500$532,945dollars as filed
ON HLDG AG NAMEN AKT AH5919C104Stock14,950$529,529dollars as filed
TWIST BIOSCIENCE CORP90184D100COM5,100$524,688dollars as filed
TTM TECHNOLOGIES INC87305R109COM2,800$523,656dollars as filed
HOULIHAN LOKEY INC CL A441593100Stock3,850$516,401dollars as filed
STIFEL FINL CORP860630102COM7,350$512,810dollars as filed
RINGCENTRAL INC76680R206CL A13,050$508,689dollars as filed
GLOBUS MED INC CL A379577208Stock6,400$505,664dollars as filed
BRUKER CORP116794108COM8,400$505,512dollars as filed
OSCAR HEALTH INC687793109CL A17,400$496,248dollars as filed
ZURN ELKAY WATER SOLNS CORP COM98983L108Stock9,750$492,668dollars as filed
CAVCO INDS INC DEL149568107COM800$491,504dollars as filed
ONDAS HLDGS INC68236H204COM NEW59,250$488,220dollars as filed
FREEDOM HOLDING CORP356390104COM3,700$482,739dollars as filed
CIPHER DIGITAL INC COM17253J106Stock19,700$482,650dollars as filed
TYLER TECHNOLOGIES INC COM902252105Stock1,650$482,559dollars as filed
ALKERMES PLCG01767105SHS8,900$466,316dollars as filed
TOPBUILD COR COM89055F103Stock1,300$460,889dollars as filed
RENAISSANCERE HLDGS LTD COMG7496G103Stock1,450$459,505dollars as filed
SYNCHRONYFINL87165B103STOK6,000$456,300dollars as filed
HEICO CORP NEW COM422806109Stock1,280$455,923dollars as filed
VERACYTE INC COM92337F107Stock7,750$455,158dollars as filed
RIOT PLATFORMS INC767292105COM16,500$451,770dollars as filed
NCR ATLEOS CORPORATION63001N106COM SHS10,400$451,464dollars as filed
KADANT INC48282T104COM1,425$447,778dollars as filed
RELAY THERAPEUTICS INC COM75943R102Stock23,200$434,072dollars as filed
CLEAN HARBORS INC COM184496107Stock1,450$433,188dollars as filed
IRENLTDFQ4982L109STOK9,450$432,149dollars as filed
VISTEON CORP92839U206COM NEW4,350$431,564dollars as filed
NAVAN INC CL A639193101Stock18,650$426,526dollars as filed
GRUPO AEROPORTUARIO DEL SURE40051E202SPON ADR SER B1,390$426,313dollars as filed
BALCHEM CORP057665200COM2,500$422,375dollars as filed
EVOLV TECHNOLOGIES HLDNGS IN30049H102COM CL A72,500$420,500dollars as filed
TOOTSIE ROLL INDS INC890516107COM10,609$419,586dollars as filed
ARCUTIS BIOTHERAPEUTICS INC03969K108COM16,000$419,520dollars as filed
BOOT BARN HLDGS INC099406100COM2,550$418,889dollars as filed
TRAVERE THERAPEUTICS INC89422G107COM7,300$414,713dollars as filed
BILLIONTOONE INC090168105CL A3,450$413,931dollars as filed
LEGEND BIOTECH CORP52490G102SPONSORED ADS14,250$411,540dollars as filed
LIGAND PHARMACEUTICALS INC53220K504COM NEW1,300$410,917dollars as filed
INTERDIGITAL INC COM45867G101Stock1,450$410,539dollars as filed
NVENT ELEC PLC SHSG6700G107Stock2,400$407,064dollars as filed
PRIMORIS SVCS CORP COM74164F103Stock4,100$406,392dollars as filed
V2X INC92242T101COM5,400$402,624dollars as filed
LANTHEUS HLDGS INC516544103COM3,600$399,384dollars as filed
GORMAN RUPP CO COM383082104Stock4,300$394,482dollars as filed
ARGENX SE SPONSORED ADR04016X101ADR425$394,302dollars as filed
AAR CORP000361105COM2,750$393,058dollars as filed
GRAIL INC384747101COM5,750$392,553dollars as filed
SELECT WATER SOLUTIONS INC81617J301CL A COM19,450$388,611dollars as filed
CUSTOMERS BANCORP INC23204G100COM4,850$383,635dollars as filed
KORN FERRY COM NEW500643200Stock5,700$379,506dollars as filed
GRANITE CONSTR INC COM387328107Stock2,400$379,392dollars as filed
NAPCO SEC TECHNOLOGIES INC COM630402105Stock9,900$376,002dollars as filed
PATRIA INVESTMENTS LIMITEDG69451105COM CL A34,000$373,320dollars as filed
TRANSCAT INC893529107COM4,000$371,080dollars as filed
OLD NATL BANCORP IND680033107COM14,150$366,485dollars as filed
RHYTHM PHARMACEUTICALS INC76243J105COM3,300$366,399dollars as filed
CBRE GROUP INC CL A12504L109Stock2,700$363,663dollars as filed
WATERBRIDGE INFRASTRUCTURE L940923105CL A SHS REPSTG10,600$363,262dollars as filed
EXELIXIS INC COM30161Q104Stock6,650$361,827dollars as filed
CSW INDUSTRIALS INC126402106COM1,300$361,790dollars as filed
UNIVERSAL TECHNICAL INST INC913915104COM8,450$361,407dollars as filed
MAREX GROUP PLCG5S37H101COMMON STOCK5,900$359,605dollars as filed
ULTRAGENYX PHARMACEUTICAL IN90400D108COM10,750$358,943dollars as filed
SCHNEIDER NATIONAL INC80689H102CL B9,800$357,994dollars as filed
CACTUS INC127203107CL A6,950$356,049dollars as filed
CLEAR SECURE INC18467V109COM CL A6,350$353,886dollars as filed
ATEGRITY SPECIALTY HOLDINGS04681Y103COMMON STOCK14,650$352,186dollars as filed
SCHOLAR ROCK HLDG CORP80706P103COM6,400$352,000dollars as filed
IONIS PHARMACEUTICALS INC COM462222100Stock4,400$348,876dollars as filed
APPLIED OPTOELECTRONICS INC03823U102COM2,350$348,176dollars as filed
CORPORACION AMER ARPTS S AL1995B107COM13,600$342,448dollars as filed
PAGSEGURO DIGITAL LTDG68707101COM CL A37,800$342,090dollars as filed
VICTORY CAP HLDGS INC DEL COM CL A92645B103Stock4,050$340,443dollars as filed
BBB Foods IncG0896C103COM8,150$339,611dollars as filed
LEONARDO DRS INC COM52661A108Stock7,900$337,093dollars as filed
MERCURY GENL CORP NEW589400100COM3,100$330,522dollars as filed
HAEMONETICS CORP MASS COM405024100Stock4,400$330,000dollars as filed
RADNET INC750491102COM5,350$329,935dollars as filed
GUARDIAN PHARMACY SVCS INC40145W101CL A7,850$328,680dollars as filed
FUTU HLDGS LTD SPON ADS CL A36118L106ADR3,500$328,090dollars as filed
ETORO GROUP LTD AG32089107COMMON STOCK8,300$327,601dollars as filed
SAMSARA INC COM CL A79589L106Stock10,100$327,543dollars as filed
CATALYST PHARMACEUTICALS INC14888U101COM10,350$325,301dollars as filed
WAFD INC938824109COM8,450$324,227dollars as filed
CHART INDS INC16115Q308COM1,550$323,857dollars as filed
AXOGEN INC05463X106COM7,000$323,330dollars as filed
PTC INC COM69370C100Stock2,800$318,108dollars as filed
INTEGER HLDGS CORP45826H109COM3,400$317,730dollars as filed
WEBSTER FINL CORP947890109COM4,150$317,143dollars as filed
SMARTFINANCIAL INC83190L208COMMON STOCK6,750$316,710dollars as filed
D-WAVE QUANTUM INC26740W109COM13,100$314,269dollars as filed
EXLSERVICE HLDGS INC COM302081104Stock12,100$312,906dollars as filed
BRIDGEBIO PHARMA INC10806X102COM4,200$312,816dollars as filed
LOVESAC COMPANY54738L109COM18,700$312,103dollars as filed
TARSUS PHARMACEUTICALS INC87650L103COMMON STOCK4,950$311,553dollars as filed
LAMB WESTON HLDGS INC513272104COM7,200$310,896dollars as filed
NETSTREIT CORP64119V303COM14,650$309,555dollars as filed
AURINIA PHARMACEUTICALS INC COM05156V102Stock18,200$308,854dollars as filed
SEACOAST BKG CORP FLA811707801COM NEW9,250$307,563dollars as filed
PIPER SANDLER COMPANIES724078209COM NEW4,240$306,722dollars as filed
TRANSPORTADORA DE GAS SUR893870204SPONSORED ADS B10,300$306,219dollars as filed
ROLLINS INC COM775711104Stock7,300$304,702dollars as filed
JANUS HENDERSON GROUP PLC ORD SHSG4474Y214Stock5,850$303,908dollars as filed
NEXTPOWER INC CLASS A COM65290E101Stock2,550$303,807dollars as filed
UMB FINL CORP902788108COM2,100$299,796dollars as filed
STOKE THERAPEUTICS INC86150R107COM9,150$299,388dollars as filed
ALIGNMENT HEALTHCARE INC COM01625V104Stock12,300$292,863dollars as filed
DECKERS OUTDOOR CORP243537107COM2,800$278,012dollars as filed
SHIFT4 PMTS INC CL A82452J109Stock5,700$277,248dollars as filed
BANCORP INC DEL05969A105COM4,300$269,352dollars as filed
FLOWCO HLDGS INC342909108COM CL A12,600$268,884dollars as filed
MADRIGAL PHARMACEUTICALS INC COM558868105Stock500$268,475dollars as filed
ACCELERANT HOLDINGS CL AG00894108COMMON STOCK22,800$267,216dollars as filed
AMERICAN SUPERCONDUCTOR CORP030111207SHS NEW6,400$265,664dollars as filed
COPART INC COM217204106Stock9,400$264,986dollars as filed
ARXIS INC04339D105CL A COM5,700$262,998dollars as filed
TOASTINCCLASSCLASSA888787108STOK9,400$261,508dollars as filed
KLARNA GROUP PLCG5279N105COMMON STOCK12,800$259,072dollars as filed
INTERFACE INC458665304COM7,225$258,944dollars as filed
FLYWIRE CORPORATION302492103COM VTG14,700$258,279dollars as filed
WILLIS LEASE FINANCE CORP970646105COMMON STOCK1,125$257,400dollars as filed
TEXAS ROADHOUSE INC COM882681109Stock1,330$256,996dollars as filed
FEDERAL SIGNAL CORP313855108COM2,000$256,980dollars as filed
UFP TECHNOLOGIES INC902673102COM965$255,850dollars as filed
HELMERICH & PAYNE INC423452101COM7,800$255,372dollars as filed
PENNANT GROUP INC70805E109COM6,800$251,260dollars as filed
WISE GROUP PLC ORD SHS CLASS AG9723Y105Stock21,000$250,110dollars as filed
HUT 8 CORP44812J104COM2,150$248,207dollars as filed
COEUR MNG INC COM NEW192108504Stock15,150$247,248dollars as filed
HECLA MNG CO422704106COM15,750$243,023dollars as filed
KENON HLDGS LTD SHSY46717107Stock3,600$240,696dollars as filed
POWELL INDS INC739128106COM840$240,542dollars as filed
BOYDGAMINGCORP103304101STOK2,700$238,491dollars as filed
RANGE RES CORP COM75281A109Stock5,400$200,826dollars as filed

Amendment chain

FilingRoleFiledAcceptedIngested
13F-HR 0001193125-26-313433this filing2026-07-23acceptance time not in the bulk data set