Granahan Investment Management, LLC
In its 13F for Q3 2024 (holdings as of September 30, 2024, filed November 14, 2024), Granahan Investment Management, LLC reported 187 stock positions worth $2.5 billion. Its top holding was Evolent Health Class A (EVH) at 3.9% of the portfolio, followed by Axon Enterprise (AXON, 3.7%) and Zeta Global Class A (ZETA, 3.4%). Compared with Q2 2024, it opened 24 new positions, sold out of 17, added to 56 and reduced 107. The biggest buy was Evolent Health Class A (EVH, shares +15%) and the biggest sale Indie Semiconductor Class A (INDI, shares −3%).
- Most Recent 13F
- Q2 2026
- Location
- WALTHAM, MA
- CIK
- 0001026710
- Portfolio Value
- $2.5B (Q3 2024)
- SEC Filing
- 0001398344-24-020730 ↗ filed Nov 14, 2024
Holdings Value
Holdings 187 stocks · $2.5B
| EVH Evolent Health Inc. Class A | 3.88% | 3,491,817 | $98.7M | Add +15.2% |
| AXON Axon Enterprise Inc. | 3.69% | 234,982 | $93.9M | Reduce -4.7% |
| ZETA Zeta Global Holdings Corp. Class A | 3.36% | 2,865,229 | $85.5M | Reduce -49.8% |
| INDI Indie Semiconductor Inc. Class A | 2.79% | 17,809,484 | $71.1M | Reduce -3.2% |
| TOST Toast Inc. Class A | 2.54% | 2,280,927 | $64.6M | Add +1.7% |
| VCTR Victory Capital Holding - A | 2.50% | 1,149,507 | $63.7M | Reduce -2.7% |
| GENI Genius Sports Ltd. | 2.44% | 7,898,939 | $61.9M | Reduce -20.8% |
| MGNI Magnite Inc. | 2.18% | 4,000,719 | $55.4M | Reduce -23.5% |
| ODD Oddity Tech Ltd. Class A | 2.11% | 1,326,713 | $53.6M | Add +31.4% |
| SPSC SPS Commerce Inc. | 2.09% | 273,646 | $53.1M | Reduce -7.8% |
| CRS Carpenter Technology | 1.96% | 311,853 | $49.8M | Reduce -20.8% |
| FOUR SHIFT4 Payments Inc. Class A | 1.84% | 526,830 | $46.7M | Reduce -11.8% |
| KRNT Kornit Digital Ltd. | 1.70% | 1,677,809 | $43.3M | Add +22.9% |
| CWST Casella Waste Systems Inc. Class A | 1.53% | 391,445 | $38.9M | Add +48.5% |
| LTH Life Time Group Holdings Inc. | 1.52% | 1,579,442 | $38.6M | Reduce -19.3% |
| GLOB Globant SA | 1.51% | 194,397 | $38.5M | Add +0.4% |
| SPT Sprout Social Inc. Class A | 1.39% | 1,220,078 | $35.5M | Reduce -35.5% |
| SMAR Smartsheet Inc. Class A | 1.31% | 601,323 | $33.3M | Reduce -37.1% |
| PHR Phreesia Inc. | 1.30% | 1,455,647 | $33.2M | Add +22.9% |
| MRX Marex UK Holdings Ltd. filed as MAREX GROUP PLC | 1.15% | 1,233,112 | $29.1M | Reduce -3.2% |
| EXAS Exact Sciences Corp. | 1.10% | 410,241 | $27.9M | New |
| CSGP Costar Group Inc. | 1.08% | 363,332 | $27.4M | Reduce -14.2% |
| KIDS Orthopediatrics Corp. | 1.08% | 1,010,259 | $27.4M | Add +1.2% |
| PCTY Paylocity Holding Corp. | 1.03% | 158,448 | $26.1M | Reduce -21.5% |
| COMP Compass Inc. Class A | 1.03% | 4,277,643 | $26.1M | Reduce -12.1% |
| KRUS Kura Sushi USA Inc. Class A | 1.00% | 315,430 | $25.4M | Add +220.1% |
| GTLS Chart Industries Inc. | 0.97% | 198,411 | $24.6M | Add +4.8% |
| HUBS HubSpot Inc. | 0.96% | 45,862 | $24.4M | Add +169.5% |
| WSC Willscot Holdings Corp. | 0.92% | 622,876 | $23.4M | Reduce -8.7% |
| SIBN Si-Bone Inc. | 0.91% | 1,656,306 | $23.2M | Reduce -6.1% |
| TCBI Texas Capital Bancshares Inc. | 0.90% | 319,343 | $22.8M | Reduce -6.9% |
| PSN Parsons Corp. | 0.85% | 208,236 | $21.6M | Reduce -1.9% |
| VERX Vertex Inc. Class A | 0.83% | 549,413 | $21.2M | Reduce -29.4% |
| ACVA Acv Auctions Inc. Class A | 0.81% | 1,018,104 | $20.7M | Add +755.7% |
| VKTX Viking Therapeutics Inc. | 0.81% | 325,287 | $20.6M | Reduce -14.1% |
| RBC RBC Bearings Inc. | 0.73% | 62,189 | $18.6M | Add +25.9% |
| COCO The Vita Coco Co. Inc. | 0.73% | 656,432 | $18.6M | Reduce -11.7% |
| VIVID SEATS INC | 0.70% | 4,813,985 | $17.8M | Reduce -8.1% |
| CHEF The Chefs' Warehouse Inc. | 0.68% | 409,186 | $17.2M | Reduce -40.2% |
| SN Sharkninja Inc. | 0.65% | 152,825 | $16.6M | Add +756.4% |
| BLFS Biolife Solutions Inc. | 0.65% | 658,634 | $16.5M | Reduce -30.3% |
| FWRG First Watch Restaurant Group | 0.63% | 1,031,253 | $16.1M | Add +53.1% |
| INSM Insmed Inc. | 0.62% | 217,345 | $15.9M | Reduce -16.2% |
| PRCH Porch Group Inc. | 0.60% | 9,993,765 | $15.3M | Add +1.1% |
| MTRN Materion Corp. | 0.60% | 136,695 | $15.3M | Reduce -29.6% |
| EVER Everquote Inc. Class A | 0.60% | 718,407 | $15.2M | Reduce -9.7% |
| PTLO Portillo's Inc. Class A | 0.59% | 1,112,172 | $15.0M | Reduce -16.3% |
| ONT Onterris Inc. filed as MONTROSE ENVIRONMENTAL GROUP | 0.58% | 556,057 | $14.6M | Add +15.1% |
| CYBR Cyberark Software Ltd./Israel | 0.56% | 49,152 | $14.3M | Reduce -15.4% |
| QTRX Quanterix Corp. | 0.56% | 1,102,631 | $14.3M | Reduce -2.4% |
| STKL Sunopta Inc. | 0.55% | 2,192,730 | $14.0M | Reduce -20.4% |
| CCOI Cogent Communications Holdin | 0.54% | 182,467 | $13.9M | Add +6.5% |
| EWTX Edgewise Therapeutics Inc. | 0.54% | 511,905 | $13.7M | Reduce -28.0% |
| LOVE The Lovesac Co. | 0.54% | 476,858 | $13.7M | Reduce -29.4% |
| GWRE Guidewire Software Inc. | 0.53% | 73,941 | $13.5M | Reduce -21.8% |
| BELFB Bel Fuse Inc. Class B | 0.53% | 170,396 | $13.4M | Reduce -9.0% |
| STEP Stepstone Group Inc. Class A | 0.52% | 234,333 | $13.3M | New |
| RGEN Repligen Corp. | 0.52% | 88,255 | $13.1M | New |
| SRAD Sportradar Group AG-A | 0.51% | 1,078,667 | $13.1M | New |
| SNDX Syndax Pharmaceuticals Inc. | 0.50% | 664,765 | $12.8M | Add +11.8% |
| SG Sweetgreen Inc. Class A | 0.50% | 359,050 | $12.7M | Add +215.9% |
| KNSA Kiniksa Pharmaceuticals Inte | 0.50% | 507,369 | $12.7M | Reduce -10.8% |
| CMCO Columbus McKinnon Corp. | 0.50% | 352,129 | $12.7M | Reduce -20.3% |
| GTES Gates Industrial Corp. UK Ltd. | 0.49% | 714,411 | $12.5M | Reduce -3.6% |
| NTNX Nutanix Inc. Class A | 0.49% | 209,762 | $12.4M | Reduce -14.5% |
| BPMC Blueprint Medicines Corp. | 0.48% | 131,146 | $12.1M | Reduce -6.1% |
| CSTL Castle Biosciences Inc. | 0.48% | 425,220 | $12.1M | Reduce -59.8% |
| RDDT Reddit Inc. Class A | 0.47% | 181,795 | $12.0M | Reduce -2.1% |
| ENVX Enovix Corp. | 0.45% | 1,234,699 | $11.5M | Add +56.3% |
| CFLT Confluent Inc. Class A | 0.44% | 548,310 | $11.2M | Add +20.3% |
| WK Workiva Inc. | 0.43% | 139,686 | $11.1M | Reduce -40.5% |
| NTRA Natera Inc. | 0.43% | 86,949 | $11.0M | Reduce -5.5% |
| KNF Knife River Corp. | 0.42% | 118,857 | $10.6M | Add +27.1% |
| VCYT Veracyte Inc. | 0.42% | 311,981 | $10.6M | Reduce -8.3% |
| SKX Skechers USA Inc. Class A | 0.41% | 156,762 | $10.5M | Add +11.3% |
| QXO Qxo Inc. | 0.41% | 658,308 | $10.4M | New |
| PTC PTC Inc. | 0.41% | 57,426 | $10.4M | Reduce -12.8% |
| TRNS Transcat Inc. | 0.39% | 81,374 | $9.8M | New |
| QLYS Qualys Inc. | 0.38% | 76,050 | $9.8M | Add +0.7% |
| TMDX Transmedics Group Inc. | 0.38% | 61,817 | $9.7M | Reduce -13.7% |
| VECO Veeco Instruments Inc. | 0.38% | 291,764 | $9.7M | Reduce -43.4% |
| PRO Pros Holdings Inc. | 0.37% | 508,581 | $9.4M | Reduce -3.1% |
| KROS Keros Therapeutics Inc. | 0.37% | 161,130 | $9.4M | Add +11.1% |
| FROG Jfrog Ltd. | 0.37% | 320,825 | $9.3M | Add +20.0% |
| SMTC Semtech Corp. | 0.36% | 202,492 | $9.2M | Add +72.6% |
| FOXF Fox Factory Holding Corp. | 0.36% | 218,185 | $9.1M | Add +153.8% |
| CALY Callaway Golf Company filed as TOPGOLF CALLAWAY BRANDS CORP | 0.34% | 798,007 | $8.8M | Reduce -20.7% |
| MOD Modine Manufacturing Co. | 0.34% | 65,983 | $8.8M | Reduce -39.3% |
| MLTX Moonlake Immunotherapeutics | 0.34% | 172,634 | $8.7M | Reduce -39.1% |
| BFAM Bright Horizons Family Solut | 0.34% | 61,666 | $8.6M | Reduce -45.8% |
| PAR Par Technology Corp. | 0.33% | 161,426 | $8.4M | Add +1.3% |
| HCAT Health Catalyst Inc. | 0.33% | 1,032,483 | $8.4M | Reduce -1.0% |
| PLRX Pliant Therapeutics Inc. | 0.33% | 738,252 | $8.3M | Reduce -24.8% |
| VRNS Varonis Systems Inc. | 0.32% | 146,232 | $8.3M | Reduce -29.1% |
| P Everpure Inc. Class A filed as PURE STORAGE INC | 0.32% | 160,175 | $8.0M | Reduce -18.4% |
| STOK Stoke Therapeutics Inc. | 0.31% | 644,970 | $7.9M | Add +7.8% |
| XENE Xenon Pharmaceuticals Inc. | 0.31% | 200,877 | $7.9M | Reduce -11.2% |
| CRVL Corvel Corp. | 0.31% | 23,811 | $7.8M | Reduce -10.9% |
| ZYME Zymeworks Inc. | 0.30% | 613,503 | $7.7M | Reduce -16.8% |
| POWI Power Integrations Inc. | 0.30% | 117,060 | $7.5M | Reduce -8.0% |
Portfolio Sells Q2 2024 → Q3 2024
| INDI Indie Semiconductor Inc. Class A | Reduce -3.2% | 2.79% | −1.75 |
| SPT Sprout Social Inc. Class A | Reduce -35.5% | 1.39% | −1.31 |
| ARRY Array Technologies Inc. | Reduce -99.3% | 0.00% | −0.88 |
| ZETA Zeta Global Holdings Corp. Class A | Reduce -49.8% | 3.36% | −0.66 |
| MGNI Magnite Inc. | Reduce -23.5% | 2.18% | −0.60 |
| VECO Veeco Instruments Inc. | Reduce -43.4% | 0.38% | −0.58 |
| VIVID SEATS INC | Reduce -8.1% | 0.70% | −0.50 |
| CSTL Castle Biosciences Inc. | Reduce -59.8% | 0.48% | −0.45 |
| SIMO Silicon Motion Technol-ADR | Reduce -63.9% | 0.16% | −0.44 |
| CHEF The Chefs' Warehouse Inc. | Reduce -40.2% | 0.68% | −0.39 |
| THRM Gentherm Inc. | Reduce -64.8% | 0.19% | −0.39 |
| SMAR Smartsheet Inc. Class A | Reduce -37.1% | 1.31% | −0.38 |
| EEFT Euronet Worldwide Inc. | Reduce -72.5% | 0.13% | −0.37 |
| AZTA Azenta Inc. | Sold out | 0.00% | −0.31 |
| VERX Vertex Inc. Class A | Reduce -29.4% | 0.83% | −0.29 |
| FIVN FIVE9 Inc. | Reduce -29.1% | 0.23% | −0.28 |
| CALY Callaway Golf Company | Reduce -20.7% | 0.34% | −0.27 |
| ARCT Arcturus Therapeutics Holdin | Reduce -74.9% | 0.08% | −0.26 |
| WK Workiva Inc. | Reduce -40.5% | 0.43% | −0.25 |
| MTRN Materion Corp. | Reduce -29.6% | 0.60% | −0.24 |
| PRO Pros Holdings Inc. | Reduce -3.1% | 0.37% | −0.23 |
| GO Grocery Outlet Holding Corp. | Sold out | 0.00% | −0.23 |
| KNSL Kinsale Capital Group Inc. | Reduce -91.8% | 0.02% | −0.23 |
| AMRC Ameresco Inc. Class A | Reduce -67.0% | 0.16% | −0.22 |
| NEOG Neogen Corp. | Sold out | 0.00% | −0.21 |
| GH Guardant Health Inc. | Sold out | 0.00% | −0.21 |
| SPXC SPX Technologies Inc. | Reduce -73.5% | 0.09% | −0.21 |
| UDMY Udemy Inc. | Sold out | 0.00% | −0.19 |
| P Everpure Inc. Class A | Reduce -18.4% | 0.32% | −0.19 |
| CSGP Costar Group Inc. | Reduce -14.2% | 1.08% | −0.18 |
| FIX Comfort Systems USA Inc. | Sold out | 0.00% | −0.16 |
| BLFS Biolife Solutions Inc. | Reduce -30.3% | 0.65% | −0.16 |
| MYRG MYR Group Inc./Delaware | Sold out | 0.00% | −0.16 |
| BFAM Bright Horizons Family Solut | Reduce -45.8% | 0.34% | −0.16 |
| MLTX Moonlake Immunotherapeutics | Reduce -39.1% | 0.34% | −0.16 |
| PRSU Pursuit Attractions and Hosp | Reduce -61.6% | 0.10% | −0.16 |
| EXTR Extreme Networks Inc. | Reduce -74.4% | 0.06% | −0.15 |
| SAGE Sage Therapeutics Inc. | Sold out | 0.00% | −0.15 |
| CLS Celestica Inc. | Sold out | 0.00% | −0.15 |
| SPSC SPS Commerce Inc. | Reduce -7.8% | 2.09% | −0.14 |
| WNS WNS Holdings Ltd. | Reduce -48.6% | 0.14% | −0.14 |
| BPMC Blueprint Medicines Corp. | Reduce -6.1% | 0.48% | −0.13 |
| CMCO Columbus McKinnon Corp. | Reduce -20.3% | 0.50% | −0.11 |
| INFN Infinera Corp. | Sold out | 0.00% | −0.11 |
| WSC Willscot Holdings Corp. | Reduce -8.7% | 0.92% | −0.11 |
| CCC CCC Intelligent Solutions Ho | Reduce -25.9% | 0.26% | −0.10 |
| RSKD Riskified Ltd. Class A | Sold out | 0.00% | −0.10 |
| COCO The Vita Coco Co. Inc. | Reduce -11.7% | 0.73% | −0.10 |
| PLRX Pliant Therapeutics Inc. | Reduce -24.8% | 0.33% | −0.10 |
| PDFS PDF Solutions Inc. | Reduce -21.4% | 0.19% | −0.09 |
Portfolio Buys Q2 2024 → Q3 2024
| EVH Evolent Health Inc. Class A | Add +15.2% | 3.88% | +1.56 |
| EXAS Exact Sciences Corp. | New | 1.10% | +1.10 |
| KRNT Kornit Digital Ltd. | Add +22.9% | 1.70% | +0.90 |
| KRUS Kura Sushi USA Inc. Class A | Add +220.1% | 1.00% | +0.75 |
| ACVA Acv Auctions Inc. Class A | Add +755.7% | 0.81% | +0.73 |
| SN Sharkninja Inc. | Add +756.4% | 0.65% | +0.60 |
| HUBS HubSpot Inc. | Add +169.5% | 0.96% | +0.56 |
| STEP Stepstone Group Inc. Class A | New | 0.52% | +0.52 |
| ODD Oddity Tech Ltd. Class A | Add +31.4% | 2.11% | +0.52 |
| RGEN Repligen Corp. | New | 0.52% | +0.52 |
| SRAD Sportradar Group AG-A | New | 0.51% | +0.51 |
| CWST Casella Waste Systems Inc. Class A | Add +48.5% | 1.53% | +0.48 |
| QXO Qxo Inc. | New | 0.41% | +0.41 |
| TRNS Transcat Inc. | New | 0.39% | +0.39 |
| SG Sweetgreen Inc. Class A | Add +215.9% | 0.50% | +0.36 |
| PHR Phreesia Inc. | Add +22.9% | 1.30% | +0.30 |
| RVMD Revolution Medicines Inc. | New | 0.27% | +0.27 |
| LEGN Legend Biotech Corp.-ADR | New | 0.23% | +0.23 |
| TOST Toast Inc. Class A | Add +1.7% | 2.54% | +0.23 |
| SMTC Semtech Corp. | Add +72.6% | 0.36% | +0.22 |
| INFA Informatica Inc. Class A | New | 0.22% | +0.22 |
| APGE Apogee Therapeutics Inc. | New | 0.21% | +0.21 |
| IRTC Irhythm Holdings Inc. | New | 0.21% | +0.21 |
| LSCC Lattice Semiconductor Corp. | New | 0.20% | +0.20 |
| RBC RBC Bearings Inc. | Add +25.9% | 0.73% | +0.20 |
| FOXF Fox Factory Holding Corp. | Add +153.8% | 0.36% | +0.19 |
| MRUS Merus NV | Add +458.6% | 0.22% | +0.17 |
| FWRG First Watch Restaurant Group | Add +53.1% | 0.63% | +0.16 |
| CCOI Cogent Communications Holdin | Add +6.5% | 0.54% | +0.16 |
| KNF Knife River Corp. | Add +27.1% | 0.42% | +0.16 |
| MKTX Marketaxess Holdings Inc. | New | 0.15% | +0.15 |
| VITL Vital Farms Inc. | New | 0.14% | +0.14 |
| GLOB Globant SA | Add +0.4% | 1.51% | +0.13 |
| SMMT Summit Therapeutics Inc. | New | 0.11% | +0.11 |
| SLAB Silicon Laboratories Inc. | Add +62.0% | 0.27% | +0.11 |
| KROS Keros Therapeutics Inc. | Add +11.1% | 0.37% | +0.10 |
| NXT Nextpower Inc. | New | 0.10% | +0.10 |
| HASI Ha Sustainable Infrastructur | New | 0.10% | +0.10 |
| STVN Stevanato Group SPA | New | 0.09% | +0.09 |
| VCEL Vericel Corp. | New | 0.09% | +0.09 |
| BCYC Bicycle Therapeutics PLC-ADR | New | 0.09% | +0.09 |
| ORN Orion Group Holdings Inc. | Add +368.6% | 0.12% | +0.08 |
| EYPT Eyepoint Inc. | Add +127.7% | 0.14% | +0.07 |
| NOVT Novanta Inc. | Add +40.7% | 0.20% | +0.07 |
| NPKI NPK International Inc. | Add +92.0% | 0.19% | +0.07 |
| AVPT Avepoint Inc. | Add +369.8% | 0.08% | +0.06 |
| MEC Mayville Engineering Co. Inc. | Add +4.3% | 0.28% | +0.06 |
| BOOT Boot Barn Holdings Inc. | Add +4.2% | 0.23% | +0.06 |
| NTLA Intellia Therapeutics Inc. | Add +31.9% | 0.23% | +0.04 |
| CEVA Ceva Inc. | Add +1.0% | 0.18% | +0.03 |
All Filings
| Quarter | Positions | 13F Reported Value | Top Holdings |
|---|---|---|---|
| Q2 2026 | 150 | $2.8B | PRCH, SIMO, FPS, INDI, VCTR |
| Q1 2026 | 149 | $2.1B | CRS, PRCH, FTAI, MOD, VCTR |
| Q4 2025 | 157 | $2.3B | PRCH, GENI, CRS, FTAI, VCTR |
| Q3 2025 | 146 | $2.4B | PRCH, GENI, ODD, MGNI, VCTR |
| Q2 2025 | 153 | $2.5B | PRCH, ODD, MGNI, GENI, MRX |
| Q1 2025 | 159 | $2.0B | PRCH, GENI, MRX, ODD, VCTR |
| Q4 2024 | 180 | $2.4B | AXON, VCTR, INDI, GENI, MRX |
| Q3 2024 | 187 | $2.5B | EVH, AXON, ZETA, INDI, TOST |
| Q2 2024 | 180 | $2.5B | INDI, ZETA, AXON, MGNI, SPT |
| Q1 2024 | 181 | $2.8B | INDI, SPT, AXON, ZETA, EVH |