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Super Investors Granahan Investment Management, LLC
GI

Granahan Investment Management, LLC

Quarterly 13F snapshot: US-listed longs only, no performance figures — 13F data cannot support them.

Portfolio value
$2.81B
Positions
150
Quarter ended
June 30, 2026
Filed
August 14, 2026

Reported portfolio value by quarter (53 quarters reported)

$5.37B $996M
Q2 13 Q1 16 Q4 18 Q3 21 Q2 24 Q2 26

$3.47B in Q2 2013 → $2.81B now. Hover for any quarter.

Holdings

As reported for the quarter ended June 30, 2026. Activity is the change in share count since the prior quarter's filing.

Holding % of portfolio Activity Shares Value
Porch Group Inc 6.6% Trimmed 2.2% 12,393,660 $186M
Silicon Motion Technology Co 5.3% Added 128% 445,752 $149M
Forgent Power Solutions Inc 3.6% Trimmed 13% 1,807,608 $101M
Indie Semiconductor Inc 3.1% Trimmed 4.3% 19,419,892 $87.2M
VC Victory Cap Hldgs Inc Del 3.0% Trimmed 6.6% 1,015,343 $85.3M
Ftai Aviation Ltd 2.8% Trimmed 14% 293,722 $79.5M
Marex Group PLC 2.7% Added 2.5% 1,254,283 $76.4M
MM Modine Mfg Co 2.5% Trimmed 30% 263,572 $70.4M
Carpenter Technology Corp 2.1% Trimmed 60% 96,981 $59.8M
Nextpower Inc 2.1% Added 17% 495,938 $59.1M
Magnite Inc 2.1% Added 21% 3,083,211 $58.5M
Axon Enterprise Inc 1.9% Added 6.8% 96,829 $54.3M
Onto Innovation Inc 1.9% Trimmed 29% 141,568 $53.6M
Ttm Technologies Inc 1.8% Trimmed 18% 269,330 $50.4M
Ligand Pharmaceuticals Inc 1.7% Added 509% 147,231 $46.5M
Kura Sushi Usa Inc 1.6% Added 32% 801,969 $46.2M
Repligen Corp 1.6% Added 282% 332,271 $45.3M
Digital Turbine Inc 1.6% Trimmed 51% 3,494,200 $45.1M
Life Time Group Holdings Inc 1.6% Trimmed 9.7% 1,083,587 $44.3M
Genius Sports Limited 1.5% Added 30% 7,024,330 $42.6M
CW Casella Waste Sys Inc 1.5% Added 74% 436,289 $42.3M
Qxo Inc 1.4% Added 54% 2,327,662 $40.2M
GH Generac Hldgs Inc 1.3% Added 830% 122,872 $36M
Zeta Global Holdings Corp 1.2% Added 72% 1,758,212 $34.6M
Kornit Digital Ltd 1.2% Trimmed 7.8% 2,119,398 $34.4M
Twist Bioscience Corp 1.2% New 314,882 $32.4M
Dave Inc 1.1% Added 30% 84,897 $31.6M
Si Bone Inc 1.1% Added 11% 1,931,182 $31.5M
Jfrog Ltd 1.0% Added 130% 299,683 $27.2M
FT Figure Technology Solutio 0.9% Trimmed 10.0% 842,306 $25.9M
Cellebrite Di Ltd 0.9% Trimmed 4.5% 1,661,163 $24.3M
GI Gates Indl Corp PLC 0.8% Added 8.9% 843,441 $23.6M
Global E Online Ltd 0.8% Added 16% 633,327 $22M
Grail Inc 0.8% Added 547% 321,176 $21.9M
Rbc Bearings Inc 0.8% Trimmed 12% 34,017 $21.9M
Cava Group Inc 0.7% Trimmed 13% 265,411 $20.8M
Orthopediatrics Corp 0.7% Added 21% 1,085,964 $20.8M
Materion Corp 0.7% Trimmed 52% 69,793 $20.8M
DS Descartes Sys Group Inc 0.7% Added 438% 297,257 $20.6M
Quantinuum Inc 0.7% New 233,540 $19.1M
Toast Inc 0.7% Added 72% 685,751 $19.1M
TC Texas Cap Bancshares Inc 0.7% Added 7.4% 184,087 $19M
Sharkninja Inc 0.7% Trimmed 5.7% 124,271 $18.9M
Celcuity Inc 0.7% Added 102% 179,053 $18.7M
UM Unusual Machs Inc 0.7% Trimmed 18% 829,328 $18.5M
First Watch Restaurant Group 0.6% Added 25% 1,363,852 $17.6M
Nutanix Inc 0.6% Added 115% 336,852 $17.2M
Nlight Inc 0.6% Added 28% 236,991 $16.5M
VI Veeco Instrs Inc Del 0.6% Added 6.3% 204,837 $15.5M
Stoke Therapeutics Inc 0.5% Added 38% 461,608 $15.1M
Biolife Solutions Inc 0.5% Trimmed 28% 521,430 $14.7M
Aerovironment Inc 0.5% Added 113% 86,783 $14.3M
Arlo Technologies Inc 0.5% Trimmed 12% 1,025,050 $13.8M
Allegro Microsystems Inc 0.5% Trimmed 14% 185,461 $12.9M
ME Mayville Engr Co Inc 0.4% Trimmed 16% 324,108 $12.1M
CF Chime Finl Inc 0.4% Added 31% 583,381 $11.9M
York Space Systems Inc 0.4% Trimmed 52% 468,190 $11.5M
Alkami Technology Inc 0.4% Added 148% 627,781 $11.4M
Arxis Inc 0.4% New 241,183 $11.1M
DH Digitalocean Hldgs Inc 0.4% Added 109% 70,354 $11M

Showing top 60 of 150 positions.

Timeline of changes

What changed each quarter, from the filings' own share counts. Largest moves first; most recent 8 quarters.

Q2 2026

quarter ended June 30, 2026 · filed August 14, 2026

Company Action Shares changed Value of change % of portfolio
Carpenter Technology Corp Trimmed −142,488 −$87.9M 2.1%
Silicon Motion Technology Co Added +250,500 +$83.5M 5.3%
Digital Turbine Inc Trimmed −3,618,151 −$46.7M 1.6%
Ligand Pharmaceuticals Inc Added +123,066 +$38.9M 1.7%
CS Comfort Sys Usa Inc Exited −26,027 −$35.9M —
Repligen Corp Added +245,318 +$33.5M 1.6%
Twist Bioscience Corp New +314,882 +$32.4M 1.2%
GH Generac Hldgs Inc Added +109,659 +$32.1M 1.3%
MM Modine Mfg Co Trimmed −114,014 −$30.4M 2.5%
Semtech Corp Exited −370,642 −$28.5M —

Showing the 10 largest of 170 changes.

Q1 2026

quarter ended March 31, 2026 · filed May 15, 2026

Company Action Shares changed Value of change % of portfolio
Oddity Tech Ltd Exited −1,523,204 −$61.2M —
Forgent Power Solutions Inc New +2,071,084 +$60.6M 2.9%
Zeta Global Holdings Corp Trimmed −1,593,143 −$25.4M 0.8%
York Space Systems Inc New +967,610 +$21.5M 1.0%
Global E Online Ltd Trimmed −644,923 −$19.9M 0.8%
Klaviyo Inc Exited −605,271 −$19.7M —
Wealthfront Corp Exited −1,386,092 −$18.8M —
Cellebrite Di Ltd Trimmed −1,317,374 −$18.2M 1.2%
Toast Inc Trimmed −638,079 −$16.9M 0.5%
Hubspot Inc Exited −37,831 −$15.2M —

Showing the 10 largest of 173 changes.

Q4 2025

quarter ended December 31, 2025 · filed February 17, 2026

Company Action Shares changed Value of change % of portfolio
CS Comfort Sys Usa Inc Trimmed −66,737 −$62.3M 1.0%
SC Sps Comm Inc Trimmed −368,776 −$32.9M 0.1%
Zeta Global Holdings Corp Added +1,373,164 +$27.9M 2.3%
Exact Sciences Corp Trimmed −224,706 −$22.8M 0.2%
Centrus Energy Corp Trimmed −93,425 −$22.7M 0.8%
Onto Innovation Inc Added +122,520 +$19.3M 1.3%
Wealthfront Corp New +1,386,092 +$18.8M 0.8%
MM Modine Mfg Co Added +139,560 +$18.6M 1.9%
Sterling Infrastructure Inc New +59,148 +$18.1M 0.8%
Porch Group Inc Added +1,953,736 +$17.8M 4.5%

Showing the 10 largest of 173 changes.

Q3 2025

quarter ended September 30, 2025 · filed November 14, 2025

Company Action Shares changed Value of change % of portfolio
Cellebrite Di Ltd Added +2,411,726 +$44.7M 2.0%
Marex Group PLC Trimmed −1,022,199 −$34.4M 1.5%
Porch Group Inc Trimmed −1,995,083 −$33.5M 6.6%
Circle Internet Group Inc Exited −138,732 −$25.2M —
Semtech Corp Trimmed −350,084 −$25M 1.9%
Ftai Aviation Ltd Added +142,477 +$23.8M 1.8%
Kura Sushi Usa Inc Added +373,354 +$22.2M 1.6%
N Nextracker Inc Added +285,362 +$21.1M 1.3%
CS Comfort Sys Usa Inc Added +24,160 +$19.9M 3.1%
Par Technology Corp Exited −260,529 −$18.1M —

Showing the 10 largest of 171 changes.

Q2 2025

quarter ended June 30, 2025 · filed August 14, 2025

Company Action Shares changed Value of change % of portfolio
Global E Online Ltd New +933,344 +$31.3M 1.3%
Circle Internet Group Inc New +138,732 +$25.2M 1.0%
Magnite Inc Added +992,796 +$23.9M 3.6%
Stepstone Group Inc Trimmed −370,191 −$20.5M 0.3%
Digital Turbine Inc Added +3,009,003 +$17.8M 0.8%
Klaviyo Inc New +479,748 +$16.1M 0.7%
Oddity Tech Ltd Trimmed −199,844 −$15.1M 4.2%
KL Kindercare Learning Companie Exited −1,228,286 −$14.2M —
Etoro Group Ltd New +198,140 +$13.2M 0.5%
Evolent Health Inc Exited −1,361,830 −$12.9M —

Showing the 10 largest of 177 changes.

Q1 2025

quarter ended March 31, 2025 · filed May 15, 2025

Company Action Shares changed Value of change % of portfolio
Axon Enterprise Inc Trimmed −77,334 −$40.7M 2.2%
DS Descartes Sys Group Inc Added +332,508 +$33.5M 1.9%
SP Shift4 Pmts Inc Trimmed −281,414 −$23M 1.0%
CS Comfort Sys Usa Inc New +68,252 +$22M 1.1%
Evolent Health Inc Trimmed −2,311,880 −$21.9M 0.6%
Semtech Corp Added +496,846 +$17.1M 1.6%
Globant S A Trimmed −134,612 −$15.8M 0.4%
Centrus Energy Corp New +216,047 +$13.4M 0.7%
SC Sps Comm Inc Added +100,748 +$13.4M 2.7%
Compass Inc Added +1,371,389 +$12M 2.3%

Showing the 10 largest of 198 changes.

Q4 2024

quarter ended December 31, 2024 · filed February 14, 2025

Company Action Shares changed Value of change % of portfolio
Axon Enterprise Inc Trimmed −73,315 −$43.6M 4.0%
Zeta Global Holdings Corp Trimmed −2,209,527 −$39.7M 0.5%
Smartsheet Inc Exited −601,323 −$33.3M —
CI Chart Inds Inc Trimmed −159,122 −$30.4M 0.3%
Marex Group PLC Added +957,492 +$29.8M 2.9%
KL Kindercare Learning Companie New +1,446,059 +$25.7M 1.1%
Toast Inc Trimmed −702,557 −$25.6M 2.4%
Sweetgreen Inc Added +663,347 +$21.3M 1.4%
Archer Aviation Inc New +2,124,164 +$20.7M 0.9%
Vita Coco Co Inc Trimmed −454,013 −$16.8M 0.3%

Showing the 10 largest of 209 changes.

Q3 2024

quarter ended September 30, 2024 · filed November 14, 2024

Company Action Shares changed Value of change % of portfolio
Zeta Global Holdings Corp Trimmed −2,836,275 −$84.6M 3.4%
Exact Sciences Corp New +410,241 +$27.9M 1.1%
Smartsheet Inc Trimmed −354,831 −$19.6M 1.3%
Sprout Social Inc Trimmed −672,623 −$19.6M 1.4%
Acv Auctions Inc Added +899,121 +$18.3M 0.8%
Castle Biosciences Inc Trimmed −633,721 −$18.1M 0.5%
Kura Sushi Usa Inc Added +216,876 +$17.5M 1.0%
Magnite Inc Trimmed −1,229,431 −$17M 2.2%
Genius Sports Limited Trimmed −2,068,739 −$16.2M 2.4%
Hubspot Inc Added +28,846 +$15.3M 1.0%

Showing the 10 largest of 204 changes.

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