Granahan Investment Management, LLC
Filing Date
Global Rank
#1,183
/ 8,622
▼ 69
· as of Mar 2026
Top Industry
Semiconductors
9.0%
3Y Alpha vs SPY
-13.5%
Period ended 4 months ago
Filed May 15, 2026 · 2mo
25 quarters · since Mar 2020
Clone Performance
Jul 2023–Jul 2026 · vs SPYHypothetical growth of buying every stock this filer reported holding, rebalancing on each filing and indexed to the same start. Option positions cannot be bought this way and are left out.
Cloned portfolio
+15.8%
SPY
+67.9%
Annualised alpha
-13.8%
Max drawdown
−29.1%
Estimate. 13F holdings are quarter-lagged, so the clone rebalances about 45 days after each period end — when the filing becomes public — and it excludes option and short positions. It tracks 100% of reported value on average across 13 quarters. Past performance does not predict future results.
Portfolio Concentration
149 positions · as of Mar 31, 2026 · Δ vs Dec 31, 2025Top Position
4.6%
+0.0 pts
Top 5
20.4%
+2.7 pts
Top 10
33.7%
+3.8 pts
HHI
177
Diversified+15
Portfolio Trend
25 quarters · across all stocks
Sector Breakdown
As of Mar 31, 2026| Sector | % Portfolio | Value |
|---|---|---|
| Industrials | 28.3% | $584,551,727 |
| Technology | 24.9% | $514,200,541 |
| Healthcare | 14.2% | $293,441,185 |
| Financial Services | 14.1% | $291,471,946 |
| Consumer Cyclical | 11.7% | $242,605,225 |
| Communication Services | 2.9% | $60,165,312 |
| Basic Materials | 1.4% | $29,494,834 |
| Real Estate | 1.0% | $20,278,265 |
| Energy | 0.8% | $15,569,287 |
| Consumer Defensive | 0.8% | $15,563,297 |
Last Quarter's Activity
Export CSVAdded To
Positions the filer increased
25 positions
| Ticker | Company | Δ Shares | Shares | Value | Open |
|---|---|---|---|---|---|
| INDI | indie Semiconductor, Inc. | +3,067,255 | 20,283,839 | $65,313,961 | |
| PRCH | Porch Group, Inc. | +1,084,559 | 12,674,987 | $90,879,656 | |
| SIBN | SI-BONE, Inc. | +858,942 | 1,739,097 | $21,964,795 | |
| ARLO | Arlo Technologies, Inc. | +831,108 | 1,169,490 | $16,641,842 | |
| APPS | Digital Turbine, Inc. | +762,888 | 7,112,351 | $20,483,570 | |
| QXO | QXO, Inc. | +709,934 | 1,509,546 | $29,315,383 | |
| MASS | 908 Devices Inc. | +603,929 | 695,070 | $4,253,828 | |
| OWLT | Owlet, Inc. | +499,906 | 1,186,655 | $6,099,406 | |
| AIP | Arteris, Inc. | +476,181 | 713,077 | $11,722,985 | |
| CHYM | Chime Financial, Inc. | +330,397 | 446,152 | $8,356,426 | |
| FIGR | Figure Technology Solutions, Inc. | +269,882 | 935,400 | $31,756,830 | |
| BLFS | Biolife Solutions Inc | +239,701 | 722,057 | $13,776,847 | |
| KIDS | Orthopediatrics Corp | +232,760 | 896,741 | $14,231,279 | |
| CYRX | Cryoport, Inc. | +190,938 | 231,138 | $1,913,822 | |
| TSHA | Taysha Gene Therapies, Inc. | +179,270 | 883,241 | $3,948,087 | |
| NTSK | Netskope Inc | +165,117 | 367,578 | $3,120,737 | |
| STOK | Stoke Therapeutics, Inc. | +144,189 | 335,586 | $10,926,680 | |
| BBNX | Beta Bionics, Inc. | +127,203 | 248,449 | $2,489,458 | |
| ALGM | Allegro Microsystems, Inc. | +125,144 | 215,001 | $6,778,981 | |
| MEC | Mayville Engineering Company, Inc. | +119,708 | 387,470 | $6,955,086 | |
| RGTI | Rigetti Computing, Inc. | +105,494 | 326,721 | $4,587,162 | |
| CCOI | Cogent Communications Holdings, Inc. | +100,422 | 317,447 | $5,980,701 | |
| LPTH | Lightpath Technologies Inc | +97,601 | 753,621 | $7,558,818 | |
| VKTX | Viking Therapeutics, Inc. | +96,606 | 332,192 | $10,809,527 | |
| IRTC | iRhythm Holdings, Inc. | +81,645 | 96,022 | $11,332,516 | |
| No positions match the current search. | |||||
Trimmed
Positions the filer reduced
25 positions
| Ticker | Company | Δ Shares | Shares | Value | Open |
|---|---|---|---|---|---|
| GENI | Genius Sports Ltd | −2,470,110 | 5,383,762 | $23,850,065 | |
| ZETA | Zeta Global Holdings Corp. | −1,593,143 | 1,024,487 | $16,309,833 | |
| PHR | Phreesia, Inc. | −1,412,006 | 987,607 | $8,276,146 | |
| CLBT | Cellebrite DI Ltd. | −1,317,374 | 1,739,644 | $23,972,294 | |
| COMP | Compass, Inc. | −1,250,911 | 1,885,312 | $13,781,630 | |
| GLBE | Global-E Online Ltd. | −644,923 | 546,969 | $16,873,993 | |
| TOST | Toast, Inc. | −638,079 | 399,067 | $10,579,266 | |
| MGNI | Magnite, Inc. | −562,517 | 2,553,413 | $30,334,546 | |
| LTH | Life Time Group Holdings, Inc. | −459,089 | 1,200,483 | $32,341,012 | |
| ENVX | Enovix Corp | −374,979 | 1,589,586 | $8,234,055 | |
| FWRG | First Watch Restaurant Group, Inc. | −363,200 | 1,088,037 | $11,402,627 | |
| XERS | Xeris Biopharma Holdings, Inc. | −301,550 | 921,854 | $5,346,753 | |
| KRNT | Kornit Digital Ltd. | −271,192 | 2,298,471 | $33,695,584 | |
| UAMY | United States Antimony Corp | −260,807 | 218,184 | $1,904,746 | |
| ACHR | Archer Aviation Inc. | −232,424 | 1,480,746 | $7,655,456 | |
| SRAD | Sportradar Group AG | −230,812 | 1,439,659 | $24,099,891 | |
| AMRC | Ameresco, Inc. | −217,934 | 630,073 | $16,066,861 | |
| UTI | Universal Technical Institute Inc | −196,859 | 242,393 | $8,750,387 | |
| TRNS | Transcat Inc | −185,639 | 5,941 | $436,366 | |
| KRUS | Kura Sushi USA, Inc. | −179,191 | 607,917 | $42,426,527 | |
| NPKI | NPK International Inc. | −178,789 | 401,658 | $5,820,024 | |
| AZTA | Azenta, Inc. | −163,680 | 40,996 | $866,245 | |
| MRX | Marex Group Ltd | −153,243 | 1,223,750 | $54,554,775 | |
| UMAC | Unusual Machines, Inc. | −138,051 | 1,016,454 | $12,604,029 | |
| IMNM | Immunome Inc. | −128,102 | 307,021 | $6,714,549 | |
| No positions match the current search. | |||||
New Positions
Positions the filer opened this quarter
17 positions
| Ticker | Company | Shares | Value | Open |
|---|---|---|---|---|
| FPS | Forgent Power Solutions, Inc. | 2,071,084 | $60,620,628 | |
| YSS | York Space Systems Inc. | 967,610 | $21,451,913 | |
| LASR | Nlight, Inc. | 185,271 | $10,564,152 | |
| AVAV | AeroVironment Inc | 40,736 | $7,456,724 | |
| LIFE | Ethos Technologies Inc. | 580,595 | $6,485,246 | |
| CALY | Callaway Golf Co | 422,920 | $5,870,129 | |
| RDNT | RadNet, Inc. | 104,282 | $5,828,320 | |
| ROG | Rogers Corp | 32,869 | $3,527,829 | |
| CDNL | Cardinal Infrastructure Group Inc. | 82,464 | $3,270,109 | |
| VIAV | Viavi Solutions Inc. | 95,761 | $3,186,926 | |
| DOCN | DigitalOcean Holdings, Inc. | 33,699 | $2,890,700 | |
| PTGX | Protagonist Therapeutics, Inc | 27,391 | $2,887,011 | |
| GNRC | Generac Holdings Inc. | 13,213 | $2,580,895 | |
| NEOG | Neogen Corp | 250,026 | $2,322,741 | |
| BBOT | BridgeBio Oncology Therapeutics, Inc. | 231,040 | $2,067,808 | |
| WRBY | Warby Parker Inc. | 81,924 | $1,726,138 | |
| SG | Sweetgreen, Inc. | 283,646 | $1,472,122 | |
| No positions match the current search. | ||||
Sold Out
Positions the filer fully exited
23 positions
| Ticker | Company | Shares | Value | Open |
|---|---|---|---|---|
| ODD | Oddity Tech Ltd | 1,523,204 | $61,202,336 | |
| KVYO | Klaviyo, Inc. | 605,271 | $19,653,149 | |
| WLTH | Wealthfront Corp | 1,386,092 | $18,836,990 | |
| HUBS | Hubspot Inc | 37,831 | $15,181,580 | |
| LITE | Lumentum Holdings Inc. | 28,498 | $10,504,077 | |
| STKL | SunOpta Inc. | 2,670,652 | $10,148,477 | |
| VITL | Vital Farms, Inc. | 216,551 | $6,916,638 | |
| LENZ | LENZ Therapeutics, Inc. | 431,100 | $6,897,600 | |
| EXAS | EXACT SCIENCES CORP | 57,212 | $5,810,450 | |
| CVLT | Commvault Systems Inc | 44,706 | $5,604,344 | |
| ELF | e.l.f. Beauty, Inc. | 73,239 | $5,569,093 | |
| SLAB | Silicon Laboratories Inc. | 32,019 | $4,184,883 | |
| CERT | Certara, Inc. | 460,797 | $4,059,621 | |
| RCUS | Arcus Biosciences, Inc. | 169,940 | $4,049,670 | |
| SHLS | Shoals Technologies Group, Inc. | 363,482 | $3,089,597 | |
| VERX | Vertex, Inc. | 150,299 | $3,001,471 | |
| VRNS | Varonis Systems Inc | 84,421 | $2,769,008 | |
| SPSC | Sps Commerce Inc | 28,004 | $2,495,996 | |
| RDW | Redwire Corp | 316,942 | $2,408,759 | |
| WEAV | Weave Communications, Inc. | 280,610 | $2,129,829 | |
| TALK | Talkspace, Inc. | 581,666 | $2,111,447 | |
| OPRX | OptimizeRx Corp | 117,122 | $1,435,915 | |
| AMPX | Amprius Technologies, Inc. | 64,382 | $507,973 | |
| No positions match the current search. | ||||
149 positions ·
$2,067,341,619 total
· as of Mar 31, 2026
All sectors
Basic Materials
Communication Services
Consumer Cyclical
Consumer Defensive
Energy
Financial Services
Healthcare
Industrials
Real Estate
Technology
Showing 1–50
of 149 positions by value
· page 1 of 3
| Ticker | Company | Type | Shares | Value (USD) | % of Portfolio | History |
|---|---|---|---|---|---|---|
| CRS |
Carpenter Technology Corp
Industrials
|
Reduced | 239,469 | $94,386,706 | 4.57% | |
| PRCH |
Porch Group, Inc.
Financial Services
|
Added | 12,674,987 | $90,879,656 | 4.40% | |
| FTAI |
FTAI Aviation Ltd.
Industrials
|
Reduced | 340,317 | $83,377,665 | 4.03% | |
| MOD |
Modine Manufacturing Co
Consumer Cyclical
|
Added | 377,586 | $81,826,662 | 3.96% | |
| VCTR |
Victory Capital Holdings, Inc.
Financial Services
|
Added | 1,087,315 | $71,197,386 | 3.44% | |
| INDI |
indie Semiconductor, Inc.
Technology
|
Added | 20,283,839 | $65,313,961 | 3.16% | |
| FPS |
Forgent Power Solutions, Inc.
Industrials
|
NEW | 2,071,084 | $60,620,628 | 2.93% | |
| MRX |
Marex Group Ltd
Financial Services
|
Reduced | 1,223,750 | $54,554,775 | 2.64% | |
| NXT |
Nextpower Inc.
Technology
|
Added | 424,434 | $51,165,518 | 2.47% | |
| KRUS |
Kura Sushi USA, Inc.
Consumer Cyclical
|
Reduced | 607,917 | $42,426,527 | 2.05% | |
| ONTO |
Onto Innovation Inc.
Technology
|
Added | 198,694 | $40,746,178 | 1.97% | |
| AXON |
Axon Enterprise, Inc.
Industrials
|
Added | 90,692 | $38,515,985 | 1.86% | |
| FIX |
Comfort Systems USA Inc
Industrials
|
Reduced | 26,027 | $35,890,972 | 1.74% | |
| KRNT |
Kornit Digital Ltd.
Industrials
|
Reduced | 2,298,471 | $33,695,584 | 1.63% | |
| LTH |
Life Time Group Holdings, Inc.
Consumer Cyclical
|
Reduced | 1,200,483 | $32,341,012 | 1.56% | |
| TTMI |
Ttm Technologies Inc
Technology
|
Added | 327,434 | $31,898,620 | 1.54% | |
| FIGR |
Figure Technology Solutions, Inc.
Financial Services
|
Added | 935,400 | $31,756,830 | 1.54% | |
| MGNI |
Magnite, Inc.
Communication Services
|
Reduced | 2,553,413 | $30,334,546 | 1.47% | |
| QXO |
QXO, Inc.
Industrials
|
Added | 1,509,546 | $29,315,383 | 1.42% | |
| SMTC |
Semtech Corp
Technology
|
Reduced | 370,642 | $28,498,663 | 1.38% | |
| CAVA |
Cava Group, Inc.
Consumer Cyclical
|
Added | 303,891 | $24,584,781 | 1.19% | |
| RMBS |
Rambus Inc
Technology
|
Added | 280,246 | $24,109,563 | 1.17% | |
| SRAD |
Sportradar Group AG
Technology
|
Reduced | 1,439,659 | $24,099,891 | 1.17% | |
| CLBT |
Cellebrite DI Ltd.
Technology
|
Reduced | 1,739,644 | $23,972,294 | 1.16% | |
| GENI |
Genius Sports Ltd
Communication Services
|
Reduced | 5,383,762 | $23,850,065 | 1.15% | |
| SIBN |
SI-BONE, Inc.
Healthcare
|
Added | 1,739,097 | $21,964,795 | 1.06% | |
| SIMO |
Silicon Motion Technology CORP
Technology
|
Reduced | 195,252 | $21,924,847 | 1.06% | |
| YSS |
York Space Systems Inc.
Industrials
|
NEW | 967,610 | $21,451,913 | 1.04% | |
| RBC |
RBC Bearings INC
Industrials
|
Reduced | 38,493 | $20,906,318 | 1.01% | |
| MTRN |
MATERION Corp
Basic Materials
|
Added | 144,476 | $20,898,453 | 1.01% | |
| APPS |
Digital Turbine, Inc.
Technology
|
Added | 7,112,351 | $20,483,570 | 0.99% | |
| CWST |
Casella Waste Systems Inc
Industrials
|
Reduced | 250,262 | $19,855,787 | 0.96% | |
| GTES |
Gates Industrial Corp plc
Industrials
|
Reduced | 774,604 | $17,513,796 | 0.85% | |
| GLBE |
Global-E Online Ltd.
Consumer Cyclical
|
Reduced | 546,969 | $16,873,993 | 0.82% | |
| ARLO |
Arlo Technologies, Inc.
Industrials
|
Added | 1,169,490 | $16,641,842 | 0.80% | |
| ZETA |
Zeta Global Holdings Corp.
Technology
|
Reduced | 1,024,487 | $16,309,833 | 0.79% | |
| TCBI |
Texas Capital Bancshares Inc/Tx
Financial Services
|
Reduced | 171,367 | $16,259,300 | 0.79% | |
| AMRC |
Ameresco, Inc.
Industrials
|
Reduced | 630,073 | $16,066,861 | 0.78% | |
| LEU |
Centrus Energy Corp
Energy
|
Added | 89,690 | $15,569,287 | 0.75% | |
| KIDS |
Orthopediatrics Corp
Healthcare
|
Added | 896,741 | $14,231,279 | 0.69% | |
| STRL |
Sterling Infrastructure, Inc.
Industrials
|
Reduced | 34,332 | $13,982,393 | 0.68% | |
| SN |
SharkNinja, Inc.
Consumer Cyclical
|
Added | 131,738 | $13,951,054 | 0.67% | |
| COMP |
Compass, Inc.
Real Estate
|
Reduced | 1,885,312 | $13,781,630 | 0.67% | |
| BLFS |
Biolife Solutions Inc
Healthcare
|
Added | 722,057 | $13,776,847 | 0.67% | |
| ALHC |
Alignment Healthcare, Inc.
Healthcare
|
Added | 780,500 | $13,752,410 | 0.67% | |
| UMAC |
Unusual Machines, Inc.
Technology
|
Reduced | 1,016,454 | $12,604,029 | 0.61% | |
| AIP |
Arteris, Inc.
Technology
|
Added | 713,077 | $11,722,985 | 0.57% | |
| FWRG |
First Watch Restaurant Group, Inc.
Consumer Cyclical
|
Reduced | 1,088,037 | $11,402,627 | 0.55% | |
| DAVE |
Dave Inc./DE
Technology
|
Added | 65,462 | $11,396,279 | 0.55% | |
| IRTC |
iRhythm Holdings, Inc.
Healthcare
|
Added | 96,022 | $11,332,516 | 0.55% |