Insider buying in May 2026
What corporate insiders bought with their own money in May 2026: every qualifying open-market purchase, and the stocks where two or more insiders bought within the same rolling window. Parsed from SEC Form 4 filings, linked to the source.
Total bought
$6.6B
Notable buys
827
Stocks
311
Clusters
110
Cluster buys detected in May 2026
- RIVNRivian Automotive, Inc. / DE2 insiders$1.0BApr 30 – May 15, 2026$25.8B market cap
- BXDCBlackstone Digital Infrastructure Trust Inc.High conviction7 insiders$191.2MMay 15 – May 15, 2026$1.9B market cap
- ALKTALKAMI TECHNOLOGY, INC.2 insiders$135.2MMay 4 – May 14, 2026$2.0B market cap
- LILALiberty Latin America Ltd.High conviction2 insiders$107.2MMay 8 – May 22, 2026$1.6B market cap
- ARTVArtiva Biotherapeutics, Inc.2 insiders$91.5MMay 11 – May 11, 2026$476.2M market cap
- ODTXOdyssey Therapeutics, Inc.6 insiders$75.3MMay 8 – May 11, 2026$837.9M market cap
- BRCBBlack Rock Coffee Bar, Inc.High conviction2 insiders$73.3MMay 15 – May 21, 2026$447.1M market cap
- QTTBQ32 Bio Inc.2 insiders$30.0MMay 28 – May 28, 2026$215.7M market cap
- TGLSTecnoglass Inc.2 insiders$27.0MMar 6 – May 15, 2026$2.0B market cap
- AVLNAvalyn Pharma Inc.3 insiders$25.0MMay 1 – May 1, 2026$1.4B market cap
- MOBIMobia Medical, Inc.7 insiders$21.6MMay 11 – May 11, 2026$456.8M market cap
- LWLamb Weston Holdings, Inc.High conviction5 insiders$19.4MFeb 6 – May 11, 2026$6.4B market cap
- MSCIMSCI Inc.High conviction2 insiders$14.2MDec 5, 2025 – May 15, 2026$44.7B market cap
- PLSEPULSE BIOSCIENCES, INC.High conviction2 insiders$13.3MMay 11 – May 11, 2026$1.9B market cap
- SLMTBrera Holdings PLCHigh conviction2 insiders$11.4MMay 21 – May 21, 2026$59.5M market cap
- EROKEagleRock Land, LLC4 insiders$11.3MMay 15 – May 15, 2026$2.7B market cap
- SRADSportradar Group AGHigh conviction3 insiders$11.0MApr 30 – May 6, 2026$5.0B market cap
- AVTRAvantor, Inc.High conviction5 insiders$9.9MAug 21, 2025 – May 1, 2026$7.1B market cap
- NOMDNomad Foods LtdHigh conviction4 insiders$9.2MMay 11 – May 15, 2026$1.6B market cap
- LWAYLifeway Foods, Inc.2 insiders$8.3MMay 14 – May 15, 2026$449.2M market cap
- POOLPOOL CORPHigh conviction4 insiders$7.5MFeb 23 – May 13, 2026$7.8B market cap
- AFCGAdvanced Flower Capital Inc.High conviction4 insiders$6.8MAug 22, 2025 – May 14, 2026$71.1M market cap
- ONONOn Holding AGHigh conviction3 insiders$6.6MMay 14 – May 14, 2026$12.2B market cap
- MRPMillrose Properties, Inc.2 insiders$6.5MMay 11 – May 18, 2026$4.7B market cap
- AMRZAmrize LtdHigh conviction6 insiders$6.5MMar 6 – May 22, 2026$29.6B market cap
- UPSTUpstart Holdings, Inc.High conviction2 insiders$6.4MMay 7 – May 13, 2026$3.3B market cap
- GEHCGE HealthCare Technologies Inc.High conviction6 insiders$6.3MApr 30 – May 22, 2026$29.5B market cap
- CSGPCOSTAR GROUP, INC.High conviction2 insiders$5.9MFeb 27 – May 1, 2026$11.7B market cap
- UUUUNIVERSAL SAFETY PRODUCTS, INC.3 insiders$5.6MMay 30, 2025 – May 15, 2026$12.4M market cap
- TKOTKO Group Holdings, Inc.High conviction4 insiders$5.5MMay 13 – May 14, 2026$36.6B market cap
- OTLKOutlook Therapeutics, Inc.2 insiders$5.2MMay 26 – May 28, 2026$183.1M market cap
- VIDAVIDA Global Inc.High conviction4 insiders$4.4MMay 14 – May 18, 2026$38.5M market cap
- ABTABBOTT LABORATORIESHigh conviction4 insiders$4.4MJan 23 – May 7, 2026$166.6B market cap
- IPINTERNATIONAL PAPER CO /NEW/High conviction4 insiders$4.3MJan 30 – May 1, 2026$20.4B market cap
- CHTRCHARTER COMMUNICATIONS, INC. /MO/High conviction4 insiders$3.8MApr 28 – May 15, 2026$18.8B market cap
- OFIXOrthofix Medical Inc.2 insiders$3.7MFeb 24 – May 7, 2026$467.7M market cap
- PATKPATRICK INDUSTRIES INCHigh conviction5 insiders$3.7MFeb 6 – May 6, 2026$2.8B market cap
- DLHCDLH Holdings Corp.2 insiders$3.5MApr 28, 2025 – May 13, 2026$74.4M market cap
- SPGIS&P Global Inc.High conviction4 insiders$3.5MFeb 11 – May 1, 2026$132.4B market cap
- SHAKShake Shack Inc.High conviction4 insiders$3.0MMay 15 – May 15, 2026$2.3B market cap
- HUBSHUBSPOT INCHigh conviction3 insiders$2.6MMay 11 – May 12, 2026$9.9B market cap
- AREALEXANDRIA REAL ESTATE EQUITIES, INC.High conviction3 insiders$2.6MDec 10, 2025 – May 6, 2026$8.7B market cap
- CDWCDW Corp2 insiders$2.5MMay 18 – May 27, 2026$17.1B market cap
- ULBIULTRALIFE CORPHigh conviction4 insiders$2.3MNov 19, 2025 – May 26, 2026$101.8M market cap
- TOIOncology Institute, Inc.2 insiders$2.2MMar 13 – May 20, 2026$543.9M market cap
- PSNPARSONS CORPHigh conviction4 insiders$2.1MMay 8 – May 13, 2026$6.2B market cap
- FCNFTI CONSULTING, INCHigh conviction3 insiders$2.1MMay 13 – May 13, 2026$4.6B market cap
- WTWWILLIS TOWERS WATSON PLCHigh conviction2 insiders$2.0MFeb 13 – May 6, 2026$27.2B market cap
- JYNTJOINT Corp2 insiders$2.0MNov 21, 2025 – May 13, 2026$123.9M market cap
- OPCHOption Care Health, Inc.High conviction4 insiders$1.9MMay 4 – May 7, 2026$3.4B market cap
- EVTCEVERTEC, Inc.High conviction4 insiders$1.8MMay 7 – May 11, 2026$1.8B market cap
- TLSITriSalus Life Sciences, Inc.High conviction3 insiders$1.8MMay 15 – May 15, 2026$273.9M market cap
- LODEComstock Inc.High conviction2 insiders$1.5MMay 12 – May 14, 2026$317.3M market cap
- NPBNORTHPOINTE BANCSHARES INCHigh conviction2 insiders$1.5MFeb 11 – May 13, 2026$657.8M market cap
- CAICaris Life Sciences, Inc.2 insiders$1.5MMay 11 – May 15, 2026Unknown market cap
- OLEDUNIVERSAL DISPLAY CORP \PA\High conviction2 insiders$1.3MMay 7 – May 7, 2026$3.8B market cap
- CDNLCardinal Infrastructure Group Inc.High conviction2 insiders$1.3MMar 26 – May 27, 2026$1.6B market cap
- BETRBetter Home & Finance Holding CoHigh conviction2 insiders$1.2MMay 7 – May 22, 2026$569.7M market cap
- WHFWhiteHorse Finance, Inc.High conviction5 insiders$1.1MNov 12, 2025 – May 21, 2026$141.2M market cap
- BOCBOSTON OMAHA Corp2 insiders$1.1MMay 22 – May 29, 2026$451.8M market cap
- SMPLSimply Good Foods Co2 insiders$1.1MApr 23 – May 14, 2026$1.2B market cap
- PDXPIMCO Dynamic Income Strategy Fund2 insiders$1.1MApr 27 – May 20, 2026$939.3M market cap
- GPKGRAPHIC PACKAGING HOLDING COHigh conviction4 insiders$979.6KMar 4 – May 8, 2026$3.1B market cap
- TFINTriumph Financial, Inc.High conviction2 insiders$969.1KFeb 27 – May 8, 2026$1.9B market cap
- ONEWOneWater Marine Inc.3 insiders$959.3KNov 24, 2025 – May 5, 2026$174.5M market cap
- ZTSZoetis Inc.3 insiders$886.4KMay 11 – May 13, 2026$31.6B market cap
- KBRKBR, INC.High conviction3 insiders$852.9KMay 13 – May 20, 2026$4.8B market cap
- MERCMERCER INTERNATIONAL INC.2 insiders$850.6KFeb 25 – May 19, 2026$50.4M market cap
- CRESYCRESUD INC2 insiders$800.1KMay 13 – May 20, 2026$846.1M market cap
- BABOEING CO2 insiders$799.3KMar 3 – May 20, 2026$184.9B market cap
- FLUTFlutter Entertainment plcHigh conviction4 insiders$747.1KMay 8 – May 12, 2026$18.6B market cap
- CELHCelsius Holdings, Inc.High conviction3 insiders$716.4KMay 21 – May 22, 2026$8.4B market cap
- REFLXPIMCO Flexible Real Estate Income Fund2 insiders$700.0KMar 16 – May 19, 2026Unknown market cap
- CXNUConexeu Sciences Inc.2 insiders$676.0KMay 12 – May 12, 2026Unknown market cap
- TFSLTFS Financial CORP2 insiders$616.0KDec 15, 2025 – May 29, 2026$5.0B market cap
- ICFIICF International, Inc.2 insiders$572.9KMar 6 – May 15, 2026$1.4B market cap
- GSHDGoosehead Insurance, Inc.High conviction3 insiders$565.6KMay 14 – May 28, 2026$1.8B market cap
- UTGNUTG INCHigh conviction2 insiders$533.1KMay 18 – May 18, 2026Unknown market cap
- TENBTenable Holdings, Inc.High conviction2 insiders$516.5KFeb 9 – May 4, 2026$4.6B market cap
- MCAHMountain Crest Acquisition 6 Corp.High conviction2 insiders$500.0KMay 1 – May 1, 2026$91.9M market cap
- AXRAMREP CORP.2 insiders$497.7KFeb 17 – May 20, 2026$132.5M market cap
- PLNTPlanet Fitness, Inc.High conviction2 insiders$478.8KMay 8 – May 12, 2026$4.2B market cap
- LMRILumexa Imaging Holdings, Inc.2 insiders$476.9KMay 14 – May 19, 2026$1.2B market cap
- WWWW INTERNATIONAL, INC.2 insiders$459.1KMay 20 – May 27, 2026$160.1M market cap
- BSXBOSTON SCIENTIFIC CORP2 insiders$454.0KMay 19 – May 20, 2026$66.3B market cap
- IBPInstalled Building Products, Inc.High conviction2 insiders$421.6KMay 11 – May 11, 2026$6.0B market cap
- CTEVClaritev CorpHigh conviction2 insiders$418.6KMay 18 – May 19, 2026$552.4M market cap
- VVVVALVOLINE INCHigh conviction2 insiders$418.3KMay 14 – May 14, 2026$4.9B market cap
- ADMAADMA BIOLOGICS, INC.2 insiders$417.7KMar 5 – May 12, 2026$2.1B market cap
- HCWBHCW Biologics Inc.High conviction2 insiders$410.0KMay 22 – May 22, 2026$5.5M market cap
- HROWHARROW, INC.High conviction2 insiders$406.7KMay 14 – May 14, 2026$1.6B market cap
- MMSIMERIT MEDICAL SYSTEMS INCHigh conviction3 insiders$382.6KMay 5 – May 7, 2026$4.3B market cap
- GLNDGreenland Energy Co3 insiders$380.2KMay 4 – May 8, 2026$88.1M market cap
- SMRTSmartRent, Inc.High conviction2 insiders$378.9KMar 12 – May 12, 2026$217.9M market cap
- FNDFloor & Decor Holdings, Inc.High conviction2 insiders$373.0KMay 4 – May 4, 2026$6.1B market cap
- ADTADT Inc.High conviction2 insiders$351.7KMay 8 – May 29, 2026$5.3B market cap
- NWBINorthwest Bancshares, Inc.High conviction8 insiders$339.0KNov 20, 2025 – May 27, 2026$2.2B market cap
- OXSQOxford Square Capital Corp.High conviction2 insiders$333.3KMay 20 – May 20, 2026$122.5M market cap
- SENSSenseonics Holdings, Inc.High conviction2 insiders$326.1KMar 13 – May 12, 2026$293.9M market cap
- STRZSTARZ ENTERTAINMENT CORP /CN/High conviction2 insiders$310.2KMay 12 – May 12, 2026$507.2M market cap
- MKLMARKEL GROUP INC.2 insiders$281.6KMay 1 – May 6, 2026$24.8B market cap
- MYOMYOMO, INC.3 insiders$263.2KMar 12 – May 14, 2026$44.4M market cap
- FRPTFreshpet, Inc.2 insiders$255.4KMay 8 – May 18, 2026$2.7B market cap
- XRNChiron Real Estate Inc.High conviction2 insiders$236.4KMay 11 – May 12, 2026$522.0M market cap
- ITICINVESTORS TITLE CO2 insiders$234.6KFeb 20 – May 13, 2026$531.4M market cap
- OIO-I Glass, Inc. /DE/High conviction2 insiders$204.5KMay 8 – May 15, 2026$1.5B market cap
- LTRNLantern Pharma Inc.2 insiders$200.0KMay 12 – May 12, 2026$50.1M market cap
- OTFBlue Owl Technology Finance Corp.2 insiders$166.5KFeb 25 – May 13, 2026$4.8B market cap
- BUSEFIRST BUSEY CORP /NV/High conviction2 insiders$163.6KMar 6 – May 4, 2026$2.5B market cap
- PETVPetVivo Holdings, Inc.2 insiders$116.4KMar 23 – May 22, 2026Unknown market cap
Biggest individual buys of May 2026
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