Granahan Investment Management, LLC
In its 13F for Q4 2025 (holdings as of December 31, 2025, filed February 17, 2026), Granahan Investment Management, LLC reported 157 stock positions worth $2.3 billion. Its top holding was Porch (PRCH) at 4.5% of the portfolio, followed by Genius Sports (GENI, 3.7%) and Carpenter Technology (CRS, 3.6%). Compared with Q3 2025, it opened 27 new positions, sold out of 16, added to 68 and reduced 62. The biggest buy was Zeta Global Class A (ZETA, shares +110%) and the biggest sale Comfort Systems USA (FIX, shares −72%).
- Most Recent 13F
- Q2 2026
- Location
- WALTHAM, MA
- CIK
- 0001026710
- Portfolio Value
- $2.3B (Q4 2025)
- SEC Filing
- 0001398344-26-003202 ↗ filed Feb 17, 2026
Holdings Value
Holdings 157 stocks · $2.3B
| PRCH Porch Group Inc. | 4.53% | 11,590,428 | $105.8M | Add +20.3% |
| GENI Genius Sports Ltd. | 3.71% | 7,853,872 | $86.5M | Reduce -1.6% |
| CRS Carpenter Technology | 3.60% | 267,175 | $84.1M | Reduce -0.8% |
| FTAI Ftai Aviation Ltd. | 2.93% | 347,365 | $68.4M | Add +29.9% |
| VCTR Victory Capital Holding - A | 2.90% | 1,075,202 | $67.8M | Reduce -10.3% |
| ODD Oddity Tech Ltd. Class A | 2.62% | 1,523,204 | $61.2M | Add +1.1% |
| INDI Indie Semiconductor Inc. Class A | 2.60% | 17,216,584 | $60.8M | Reduce -1.5% |
| CLBT Cellebrite Di Ltd. | 2.36% | 3,057,018 | $55.1M | Add +16.3% |
| ZETA Zeta Global Holdings Corp. Class A | 2.28% | 2,617,630 | $53.3M | Add +110.3% |
| MRX Marex UK Holdings Ltd. filed as MAREX GROUP PLC | 2.26% | 1,376,993 | $52.8M | Add +30.5% |
| MGNI Magnite Inc. | 2.17% | 3,115,930 | $50.6M | Reduce -19.6% |
| GLBE Global-E Online Ltd. | 2.01% | 1,191,892 | $46.9M | Reduce -2.4% |
| LTH Life Time Group Holdings Inc. | 1.89% | 1,659,572 | $44.1M | Reduce -2.0% |
| MOD Modine Manufacturing Co. | 1.87% | 326,474 | $43.6M | Add +74.7% |
| AXON Axon Enterprise Inc. | 1.84% | 75,714 | $43.0M | Reduce -2.2% |
| KRUS Kura Sushi USA Inc. Class A | 1.76% | 787,108 | $41.2M | Add +17.3% |
| PHR Phreesia Inc. | 1.74% | 2,399,613 | $40.6M | Add +73.8% |
| SRAD Sportradar Group AG-A | 1.70% | 1,670,471 | $39.7M | Reduce -11.8% |
| KRNT Kornit Digital Ltd. | 1.58% | 2,569,663 | $37.0M | Add +31.4% |
| TOST Toast Inc. Class A | 1.58% | 1,037,146 | $36.8M | Reduce -16.2% |
| NXT Nextpower Inc. | 1.44% | 384,710 | $33.5M | Reduce -7.3% |
| COMP Compass Inc. Class A | 1.42% | 3,136,223 | $33.1M | Reduce -34.8% |
| APPS Digital Turbine Inc. | 1.36% | 6,349,463 | $31.7M | Add +11.1% |
| ONTO Onto Innovation Inc. | 1.33% | 196,642 | $31.0M | Add +165.3% |
| SMTC Semtech Corp. | 1.32% | 418,227 | $30.8M | Reduce -34.8% |
| FIGR Figure Technology Solut Class A | 1.16% | 665,518 | $27.2M | Add +45.1% |
| CWST Casella Waste Systems Inc. Class A | 1.08% | 257,715 | $25.2M | Reduce -18.0% |
| AMRC Ameresco Inc. Class A | 1.06% | 848,007 | $24.8M | Reduce -4.7% |
| RMBS Rambus Inc. | 1.04% | 265,516 | $24.4M | Add +11.3% |
| FIX Comfort Systems USA Inc. | 1.04% | 26,035 | $24.3M | Reduce -71.9% |
| FWRG First Watch Restaurant Group | 0.94% | 1,451,237 | $21.9M | Reduce -13.0% |
| RBC RBC Bearings Inc. | 0.94% | 48,757 | $21.9M | Add +6.3% |
| SIMO Silicon Motion Technol-ADR | 0.91% | 229,129 | $21.2M | Add +10.3% |
| KVYO Klaviyo Inc. Class A | 0.84% | 605,271 | $19.7M | Add +94.7% |
| WLTH Wealthfront Corp. | 0.81% | 1,386,092 | $18.8M | New |
| STEP Stepstone Group Inc. Class A | 0.79% | 288,709 | $18.5M | Reduce -24.3% |
| LEU Centrus Energy Corp. Class A | 0.78% | 75,235 | $18.3M | Reduce -55.4% |
| STRL Sterling Infrastructure Inc. | 0.78% | 59,148 | $18.1M | New |
| GTES Gates Industrial Corp. UK Ltd. | 0.77% | 834,723 | $17.9M | Add +22.3% |
| SIBN Si-Bone Inc. | 0.74% | 880,155 | $17.4M | Reduce -15.3% |
| MTRN Materion Corp. | 0.74% | 138,226 | $17.2M | Add +46.6% |
| TTMI TTM Technologies | 0.73% | 247,375 | $17.1M | New |
| TCBI Texas Capital Bancshares Inc. | 0.69% | 178,369 | $16.1M | Add +5.0% |
| QXO Qxo Inc. | 0.66% | 799,612 | $15.4M | Add +28.8% |
| HUBS HubSpot Inc. | 0.65% | 37,831 | $15.2M | Add +57.3% |
| ALHC Alignment Healthcare Inc. | 0.63% | 749,487 | $14.8M | Add +29.1% |
| UMAC Unusual Machines Inc. | 0.63% | 1,154,505 | $14.7M | New |
| ENVX Enovix Corp. | 0.61% | 1,964,565 | $14.4M | Add +12.3% |
| CAVA Cava Group Inc. | 0.58% | 230,803 | $13.5M | New |
| CRDO Credo Technology Group Holdi | 0.57% | 91,770 | $13.2M | Add +9.3% |
| KNSA Kiniksa Pharmaceuticals Inte | 0.56% | 316,213 | $13.0M | Add +11.5% |
| ACHR Archer Aviation Inc. Class A | 0.55% | 1,713,170 | $12.9M | Reduce -41.7% |
| SN Sharkninja Inc. | 0.54% | 112,863 | $12.6M | Add +31.9% |
| BETA Beta Technologies Inc. Class A | 0.53% | 438,351 | $12.4M | New |
| RGEN Repligen Corp. | 0.51% | 72,002 | $11.8M | Add +3.0% |
| KIDS Orthopediatrics Corp. | 0.51% | 663,981 | $11.8M | Reduce -12.6% |
| BLFS Biolife Solutions Inc. | 0.50% | 482,356 | $11.7M | Add +23.0% |
| UTI Universal Technical Institut | 0.49% | 439,252 | $11.5M | Add +253.5% |
| OWLT Owlet Inc. | 0.48% | 686,749 | $11.1M | Add +34.7% |
| TRNS Transcat Inc. | 0.47% | 191,580 | $10.9M | Reduce -16.2% |
| LITE Lumentum Holdings Inc. | 0.45% | 28,498 | $10.5M | Reduce -13.3% |
| STKL Sunopta Inc. | 0.43% | 2,670,652 | $10.1M | Reduce -2.1% |
| XERS Xeris Biopharma Holdings Inc. | 0.41% | 1,223,404 | $9.6M | Add +249.4% |
| FROG Jfrog Ltd. | 0.40% | 150,580 | $9.4M | Reduce -8.4% |
| JBTM JBT Marel Corp. | 0.40% | 62,044 | $9.3M | Reduce -2.1% |
| IMNM Immunome Inc. | 0.40% | 435,123 | $9.3M | Add +2.1% |
| CELC Celcuity Inc. | 0.37% | 87,032 | $8.7M | Add +76.6% |
| HQY Healthequity Inc. | 0.36% | 91,020 | $8.3M | New |
| VKTX Viking Therapeutics Inc. | 0.35% | 235,586 | $8.3M | Add +24.3% |
| RVMD Revolution Medicines Inc. | 0.34% | 99,194 | $7.9M | Reduce -16.4% |
| NTNX Nutanix Inc. Class A | 0.34% | 152,001 | $7.9M | Reduce -12.2% |
| BBIO Bridgebio Pharma Inc. | 0.33% | 101,805 | $7.8M | Reduce -36.9% |
| SNDX Syndax Pharmaceuticals Inc. | 0.33% | 366,793 | $7.7M | Reduce -7.5% |
| KNSL Kinsale Capital Group Inc. | 0.33% | 19,686 | $7.7M | Add +26.0% |
| APGE Apogee Therapeutics Inc. | 0.31% | 94,720 | $7.1M | Reduce -28.5% |
| LPTH Lightpath Technologies Inc. Class A | 0.30% | 656,020 | $7.1M | New |
| BOOT Boot Barn Holdings Inc. | 0.30% | 39,495 | $7.0M | Add +7.7% |
| NPKI NPK International Inc. | 0.30% | 580,447 | $6.9M | Add +16.1% |
| VITL Vital Farms Inc. | 0.30% | 216,551 | $6.9M | New |
| LENZ Lenz Therapeutics Inc. | 0.30% | 431,100 | $6.9M | Add +125.2% |
| AZTA Azenta Inc. | 0.29% | 204,676 | $6.8M | Add +1999.7% |
| SRRK Scholar Rock Holding Corp. | 0.29% | 153,769 | $6.8M | Add +18.4% |
| EYPT Eyepoint Inc. | 0.29% | 366,675 | $6.7M | Add +5.4% |
| TSEM Tower Semiconductor Ltd. | 0.29% | 56,795 | $6.7M | Reduce -68.1% |
| CECO Ceco Environmental Corp. | 0.28% | 108,889 | $6.5M | Reduce -53.6% |
| MP MP Materials Corp. | 0.28% | 128,417 | $6.5M | New |
| VECO Veeco Instruments Inc. | 0.27% | 223,278 | $6.4M | Reduce -23.6% |
| SLNO Soleno Therapeutics Inc. | 0.27% | 137,592 | $6.4M | Add +25.9% |
| CSGP Costar Group Inc. | 0.26% | 91,929 | $6.2M | Reduce -66.0% |
| ALKT Alkami Technology Inc. | 0.26% | 265,266 | $6.1M | Reduce -1.8% |
| ANAB Anaptysbio Inc. | 0.26% | 125,855 | $6.1M | Reduce -14.8% |
| STOK Stoke Therapeutics Inc. | 0.26% | 191,397 | $6.1M | Reduce -24.6% |
| ZYME Zymeworks Inc. | 0.25% | 224,408 | $5.9M | Reduce -35.0% |
| IMVT Immunovant Inc. | 0.25% | 230,188 | $5.9M | Reduce -13.5% |
| EXAS Exact Sciences Corp. | 0.25% | 57,212 | $5.8M | Reduce -79.7% |
| EWTX Edgewise Therapeutics Inc. | 0.25% | 232,295 | $5.8M | Reduce -31.6% |
| RYTM Rhythm Pharmaceuticals Inc. | 0.24% | 53,452 | $5.7M | Add +7.5% |
| WSC Willscot Holdings Corp. | 0.24% | 297,852 | $5.6M | Add +48.6% |
| CVLT Commvault Systems Inc. | 0.24% | 44,706 | $5.6M | Add +6.8% |
| ELF Elf Beauty Inc. | 0.24% | 73,239 | $5.6M | Reduce -25.9% |
Portfolio Sells Q3 2025 → Q4 2025
| FIX Comfort Systems USA Inc. | Reduce -71.9% | 1.04% | −2.09 |
| SPSC SPS Commerce Inc. | Reduce -92.9% | 0.11% | −1.58 |
| LEU Centrus Energy Corp. Class A | Reduce -55.4% | 0.78% | −1.36 |
| MGNI Magnite Inc. | Reduce -19.6% | 2.17% | −1.29 |
| DSGX The Descartes Systems Grp | Reduce -84.6% | 0.12% | −0.71 |
| CSGP Costar Group Inc. | Reduce -66.0% | 0.26% | −0.67 |
| FOUR SHIFT4 Payments Inc. Class A | Sold out | 0.00% | −0.62 |
| ACHR Archer Aviation Inc. Class A | Reduce -41.7% | 0.55% | −0.60 |
| SMTC Semtech Corp. | Reduce -34.8% | 1.32% | −0.56 |
| AXON Axon Enterprise Inc. | Reduce -2.2% | 1.84% | −0.43 |
| NCLH Norwegian Cruise Line Holdin | Sold out | 0.00% | −0.41 |
| SRAD Sportradar Group AG-A | Reduce -11.8% | 1.70% | −0.39 |
| EXAS Exact Sciences Corp. | Reduce -79.7% | 0.25% | −0.38 |
| GENI Genius Sports Ltd. | Reduce -1.6% | 3.71% | −0.34 |
| INDI Indie Semiconductor Inc. Class A | Reduce -1.5% | 2.60% | −0.31 |
| ELF Elf Beauty Inc. | Reduce -25.9% | 0.24% | −0.30 |
| BELFB Bel Fuse Inc. Class B | Reduce -65.8% | 0.22% | −0.29 |
| VCTR Victory Capital Holding - A | Reduce -10.3% | 2.90% | −0.27 |
| TOST Toast Inc. Class A | Reduce -16.2% | 1.58% | −0.27 |
| VRNS Varonis Systems Inc. | Reduce -48.6% | 0.12% | −0.27 |
| ACVA Acv Auctions Inc. Class A | Sold out | 0.00% | −0.26 |
| MRUS Merus NV | Sold out | 0.00% | −0.26 |
| NTLA Intellia Therapeutics Inc. | Sold out | 0.00% | −0.24 |
| TSEM Tower Semiconductor Ltd. | Reduce -68.1% | 0.29% | −0.24 |
| STEP Stepstone Group Inc. Class A | Reduce -24.3% | 0.79% | −0.23 |
| STKL Sunopta Inc. | Reduce -2.1% | 0.43% | −0.22 |
| TRNS Transcat Inc. | Reduce -16.2% | 0.47% | −0.22 |
| OKTA Okta Inc. | Reduce -53.4% | 0.18% | −0.21 |
| CECO Ceco Environmental Corp. | Reduce -53.6% | 0.28% | −0.21 |
| EXLS Exlservice Holdings Inc. | Reduce -71.0% | 0.09% | −0.21 |
| POWL Powell Industries Inc. | Sold out | 0.00% | −0.21 |
| ADTN Adtran Holdings Inc. | Reduce -90.6% | 0.02% | −0.20 |
| AGYS Agilysys Inc. | Reduce -55.1% | 0.21% | −0.19 |
| NTNX Nutanix Inc. Class A | Reduce -12.2% | 0.34% | −0.19 |
| GRBK Green Brick Partners Inc. | Sold out | 0.00% | −0.19 |
| CALY Callaway Golf Company | Sold out | 0.00% | −0.17 |
| VERX Vertex Inc. Class A | Reduce -48.0% | 0.13% | −0.17 |
| COMP Compass Inc. Class A | Reduce -34.8% | 1.42% | −0.16 |
| AMRC Ameresco Inc. Class A | Reduce -4.7% | 1.06% | −0.16 |
| CFLT Confluent Inc. Class A | Sold out | 0.00% | −0.16 |
| CIEN Ciena Corp. | Sold out | 0.00% | −0.15 |
| CWST Casella Waste Systems Inc. Class A | Reduce -18.0% | 1.08% | −0.14 |
| NTRA Natera Inc. | Sold out | 0.00% | −0.13 |
| FWRG First Watch Restaurant Group | Reduce -13.0% | 0.94% | −0.13 |
| IDCC Interdigital Inc. | Sold out | 0.00% | −0.11 |
| AIP Arteris Inc. | Reduce -61.9% | 0.16% | −0.10 |
| NEXN Nexxen International Ltd. | Sold out | 0.00% | −0.09 |
| VECO Veeco Instruments Inc. | Reduce -23.6% | 0.27% | −0.09 |
| RCUS Arcus Biosciences Inc. | Reduce -62.7% | 0.17% | −0.08 |
| DAVE Dave Inc. | Reduce -84.1% | 0.02% | −0.08 |
Portfolio Buys Q3 2025 → Q4 2025
| ZETA Zeta Global Holdings Corp. Class A | Add +110.3% | 2.28% | +1.27 |
| FTAI Ftai Aviation Ltd. | Add +29.9% | 2.93% | +1.10 |
| ONTO Onto Innovation Inc. | Add +165.3% | 1.33% | +0.94 |
| MRX Marex UK Holdings Ltd. | Add +30.5% | 2.26% | +0.81 |
| WLTH Wealthfront Corp. | New | 0.81% | +0.81 |
| MOD Modine Manufacturing Co. | Add +74.7% | 1.87% | +0.78 |
| STRL Sterling Infrastructure Inc. | New | 0.78% | +0.78 |
| TTMI TTM Technologies | New | 0.73% | +0.73 |
| UMAC Unusual Machines Inc. | New | 0.63% | +0.63 |
| CAVA Cava Group Inc. | New | 0.58% | +0.58 |
| BETA Beta Technologies Inc. Class A | New | 0.53% | +0.53 |
| KRNT Kornit Digital Ltd. | Add +31.4% | 1.58% | +0.50 |
| KVYO Klaviyo Inc. Class A | Add +94.7% | 0.84% | +0.49 |
| FIGR Figure Technology Solut Class A | Add +45.1% | 1.16% | +0.48 |
| PHR Phreesia Inc. | Add +73.8% | 1.74% | +0.41 |
| CLBT Cellebrite Di Ltd. | Add +16.3% | 2.36% | +0.37 |
| HQY Healthequity Inc. | New | 0.36% | +0.36 |
| UTI Universal Technical Institut | Add +253.5% | 0.49% | +0.33 |
| LPTH Lightpath Technologies Inc. Class A | New | 0.30% | +0.30 |
| OWLT Owlet Inc. | Add +34.7% | 0.48% | +0.30 |
| VITL Vital Farms Inc. | New | 0.30% | +0.30 |
| XERS Xeris Biopharma Holdings Inc. | Add +249.4% | 0.41% | +0.29 |
| AZTA Azenta Inc. | Add +1999.7% | 0.29% | +0.28 |
| MP MP Materials Corp. | New | 0.28% | +0.28 |
| CELC Celcuity Inc. | Add +76.6% | 0.37% | +0.27 |
| MTRN Materion Corp. | Add +46.6% | 0.74% | +0.27 |
| FN Fabrinet | New | 0.23% | +0.23 |
| ALHC Alignment Healthcare Inc. | Add +29.1% | 0.63% | +0.22 |
| CORZ Core Scientific Inc. | New | 0.22% | +0.22 |
| RGTI Rigetti Computing Inc. | New | 0.21% | +0.21 |
| IONQ Ionq Inc. | New | 0.21% | +0.21 |
| RBC RBC Bearings Inc. | Add +6.3% | 0.94% | +0.20 |
| IMNM Immunome Inc. | Add +2.1% | 0.40% | +0.20 |
| HUBS HubSpot Inc. | Add +57.3% | 0.65% | +0.19 |
| GRAL Grail Inc. | New | 0.19% | +0.19 |
| SN Sharkninja Inc. | Add +31.9% | 0.54% | +0.18 |
| QXO Qxo Inc. | Add +28.8% | 0.66% | +0.18 |
| NUVL Nuvalent Inc. Class A | New | 0.17% | +0.17 |
| CHEF The Chefs' Warehouse Inc. | Add +1241.3% | 0.18% | +0.17 |
| VKTX Viking Therapeutics Inc. | Add +24.3% | 0.35% | +0.15 |
| KRUS Kura Sushi USA Inc. Class A | Add +17.3% | 1.76% | +0.13 |
| SHLS Shoals Technologies Group -A | Add +2481.9% | 0.13% | +0.13 |
| SLAB Silicon Laboratories Inc. | Add +228.2% | 0.18% | +0.13 |
| CHYM Chime Financial Inc. Class A | New | 0.12% | +0.12 |
| RGEN Repligen Corp. | Add +3.0% | 0.51% | +0.12 |
| LIND Lindblad Expeditions Holding | Add +84.0% | 0.21% | +0.12 |
| MLTX Moonlake Immunotherapeutics | New | 0.11% | +0.11 |
| ONT Onterris Inc. | Add +119.7% | 0.21% | +0.11 |
| KNSA Kiniksa Pharmaceuticals Inte | Add +11.5% | 0.56% | +0.11 |
| TCBI Texas Capital Bancshares Inc. | Add +5.0% | 0.69% | +0.10 |
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 |