Needham Investment Management Llc

Institutional manager — quarterly 13F holdings, Q ending 2026-03-31

Reported value
$1.96B
Q ending 2026-03-31
Prior quarter
$1.58B
Q ending 2025-12-31
Change
+23.7% QoQ · +83.4% YoY
Positions
176
reported holdings

Largest positions

Top 100 of 176 reported positions by value, Q ending 2026-03-31. A manager can hold shares, calls and puts on the same security at once — such positions are listed as separate rows. Type: Shares = common stock, Put/Call = option positions (valued at the underlying), Principal = debt. Tickers link to stock pages where covered.
HoldingTickerTypeValueShares
Nlight IncLASRShares$109.6M1.9M
Vicor CorpVICRShares$84.0M522K
Vertiv Holdings CoVRTShares$71.5M285K
Pdf Solutions IncPDFSShares$66.2M2.0M
Arteris IncAIPShares$65.0M4.0M
Formfactor IncFORMShares$58.5M604K
Vishay Intertechnology IncVSHShares$52.6M2.9M
Lincoln Edl Svcs CorpLINCShares$52.0M1.3M
Oil Dri Corp AmerODCShares$44.1M678K
Nova LtdShares$40.0M92K
Universal Technical Inst IncUTIShares$37.2M1.0M
Super Micro Computer IncSMCIShares$36.8M1.6M
Thermon Group Hldgs Inc8TGShares$31.9M633K
Thredup IncTDUPShares$30.4M9.3M
Veeco Instrs Inc DelVECOShares$29.8M880K
Tetra Technologies Inc DelTTIShares$28.8M3.4M
Mks Inc.MKSIShares$27.6M120K
Vishay Precision Group IncVPGShares$26.9M620K
Coherent CorpCOHRShares$25.1M106K
Arlo Technologies IncARLOShares$25.0M1.8M
Photronics IncPLABShares$24.4M605K
Centuri Holdings IncCTRIShares$23.9M818K
Ceco Environmental CorpCECOShares$23.1M388K
Cra Intl IncCRAIShares$22.7M140K
Asure Software IncASURShares$22.4M2.6M
Parsons Corp DelPSNShares$22.2M409K
Huntington Ingalls Inds IncHIIShares$21.0M55K
Akamai Technologies IncAKAMShares$20.5M179K
Clean Harbors IncCLHShares$19.7M69K
Nvent Elec PlcShares$18.3M155K
Astronics CorpATROShares$18.2M273K
Genius Sports LimitedShares$17.7M4.0M
Select Water Solutions IncWTTRShares$17.7M1.2M
Gorman Rupp CoGRCShares$16.9M273K
Matrix Svc CoMTRXShares$16.5M1.4M
Vital Farms IncVITLShares$16.2M1.1M
Adtran Holdings IncADTNShares$15.5M1.2M
Aspen Aerogels IncASPNShares$15.5M4.5M
Bruker CorpBRKRShares$15.3M424K
Tennant CoTNCShares$15.2M229K
Viasat IncVSATShares$15.1M331K
Kla CorpKLACShares$15.1M10K
Labcorp Holdings IncLHShares$15.0M56K
Everus Constr GroupECGShares$14.9M127K
Solstice Advanced Matls IncSOLSShares$14.3M188K
Generac Hldgs IncGNRCShares$14.2M72K
WabtecWABShares$13.9M56K
Entegris IncENTGShares$13.7M117K
Ecovyst IncECVTShares$13.1M1.0M
Markel Group IncMKLShares$12.8M7K
Thermo Fisher Scientific IncTMOShares$12.4M25K
Jacobs Solutions IncJShares$12.2M96K
Bwx Technologies IncBWXTShares$12.1M59K
Mdu Res Group IncMDUShares$11.6M558K
Equinix IncEQIXShares$11.0M11K
Myr Group IncMYRGShares$10.9M39K
Bright Horizons Fam Sol In DBFAMShares$10.6M129K
Energy Services Of Amer CorpESOAShares$10.5M800K
Camtek LtdShares$10.1M67K
Transcat IncTRNSShares$9.6M131K
Unisys CorpUISShares$9.2M4.4M
Teradyne IncTERShares$8.6M29K
Ttm Technologies IncTTMIShares$8.5M88K
Cognex CorpCGNXShares$8.5M173K
Gilead Sciences IncGILDShares$7.7M55K
Asml Hldg NvShares$7.7M6K
908 Devices IncMASSShares$7.6M1.2M
Vail Resorts IncMTNShares$7.6M59K
Evolv Technologies Hldngs InEVLVShares$7.6M1.3M
Bentley Sys IncBSYShares$7.6M215K
Modine Mfg CoMODShares$7.5M35K
Precision Optics Corp Inc MaPOCIShares$7.3M1.7M
Smith Midland CorpSMIDShares$7.3M225K
Research Solutions IncRSSSShares$7.1M3.2M
Abrdn Life Sciences InvestorHQLShares$7.0M430K
Crh PlcShares$6.8M65K
Comcast Corp NewCMCSAShares$6.6M232K
Mastec IncMTZShares$6.5M20K
Life Time Group Holdings IncLTHShares$6.5M240K
Northern Technologies Intl CNTICShares$6.3M765K
Rogers CorpROGShares$6.2M58K
Honeywell Intl IncHONGBPShares$6.2M28K
Atlanta Braves Hldgs IncBATRKShares$6.2M145K
Unusual Machs IncUMACShares$6.0M485K
Harmonic IncHLITShares$6.0M668K
Costar Group IncCSGPShares$5.7M142K
Corning IncGLWShares$5.7M42K
Core Molding Technologies InCMTShares$5.7M252K
Abrdn Healthcare InvestorsHQHShares$5.5M311K
Navigator Hldgs LtdShares$5.5M286K
Carmax IncKMXShares$5.3M129K
Lam Research CorpLRCXShares$5.3M25K
Lightpath Technologies IncLPTHShares$5.3M528K
Sitime CorpSITMShares$5.2M15K
Ambiq Micro IncAMBQShares$5.1M200K
Red Cat Hldgs IncRCATShares$5.0M380K
Marvell Technology IncMRVLShares$4.8M48K
Apple IncAAPLShares$4.7M18K
Box IncBOXShares$4.6M195K
Medtronic PlcShares$4.6M53K

Values as reported in public regulatory filings (USD); holdings are reported quarterly, up to 45 days after quarter end, and may contain reporting errors. Nothing here is investment advice.