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Institutional

Granahan Investment Management, LLC

CIK 0001026710
$2.07B
Reported AUM
149
Positions
Q1 2026
Period
2026-05-15
Filed

The Brief · Granahan Investment Management, LLC · Q1 2026

AI · grounded in 13F

Granahan Investment Management, LLC closed its position in ODD for a reduction of $61.2M. The fund established a new position in FPS worth $60.6M and added YSS with a new investment of $21.5M. Additionally, the manager increased its holdings in TTMI by 32.4% and MOD by 15.7%.

Portfolio · Q1 2026

CRSPRCHFTAIMODVCTRINDIFPSMRXNXTKRUSONTOOther$1.29BGL

Top holdings

QoQ vs Q4 2025

#StockIssuerPriceDay %1Y Gr.5Y Gr.Value% of bookΔ shares (QoQ)Status
1CRSCARPENTER TECHNOLOGY CORP$483.60-1.83%94.94%1250.10%$94.4M4.57%27,706−10.4%
2PRCHPORCH GROUP INC$9.26-4.04%-14.73%-50.03%$90.9M4.40%+1,084,559+9.4%
3FTAIFTAI AVIATION LTD$234.05-6.41%82.59%1022.34%$83.4M4.03%7,048−2.0%
4MODMODINE MFG CO$276.51-8.20%195.35%1552.78%$81.8M3.96%+51,112+15.7%
5VCTRVICTORY CAP HLDGS INC DEL$87.50-1.43%38.79%233.78%$71.2M3.44%+12,113+1.1%
6INDIINDIE SEMICONDUCTOR INC$4.05-15.62%41.11%-53.34%$65.3M3.16%+3,067,255+17.8%
7FPSFORGENT POWER SOLUTIONS INC$59.13-8.45%75.15%102.02%$60.6M2.93%+2,071,084NEW
8MRXMAREX GROUP PLC$55.111.16%32.44%181.90%$54.6M2.64%153,243−11.1%
9NXTNEXTPOWER INC$131.57-12.47%123.30%262.85%$51.2M2.47%+39,724+10.3%
10KRUSKURA SUSHI USA INC$45.58-0.42%-42.15%-6.25%$42.4M2.05%179,191−22.8%
11ONTOONTO INNOVATION INC$253.24-7.83%163.52%261.36%$40.7M1.97%+2,052+1.0%
12AXONAXON ENTERPRISE INC$486.12-5.28%-38.61%161.33%$38.5M1.86%+14,978+19.8%
13FIXCOMFORT SYS USA INC$1843.94-3.69%262.00%2420.18%$35.9M1.74%8−0.0%
14KRNTKORNIT DIGITAL LTD$15.23-4.57%-32.43%-88.48%$33.7M1.63%271,192−10.6%
15LTHLIFE TIME GROUP HOLDINGS INC$32.39-0.49%11.69%61.22%$32.3M1.56%459,089−27.7%
16TTMITTM TECHNOLOGIES INC$167.62-9.32%404.58%1098.14%$31.9M1.54%+80,059+32.4%
17FIGRFIGURE TECHNOLOGY SOLUTIO$28.49-9.04%-12.34%-28.06%$31.8M1.54%+269,882+40.6%
18MGNIMAGNITE INC$14.68-1.21%-16.59%-51.55%$30.3M1.47%562,517−18.1%
19QXOQXO INC$15.76-2.90%-17.05%-71.03%$29.3M1.42%+709,934+88.8%
20SMTCSEMTECH CORP$151.02-10.82%299.00%143.93%$28.5M1.38%47,585−11.4%
21CAVACAVA GROUP INC$72.601.18%-8.14%27.12%$24.6M1.19%+73,088+31.7%
22RMBSRAMBUS INC DEL$145.31-14.20%153.02%514.16%$24.1M1.17%+14,730+5.5%
23SRADSPORTRADAR GROUP AG$13.90-2.32%-42.32%-33.49%$24.1M1.17%230,812−13.8%
24CLBTCELLEBRITE DI LTD$13.81-3.36%-16.45%38.93%$24.0M1.16%1,317,374−43.1%
25GENIGENIUS SPORTS LIMITED$5.93-6.76%-37.45%-65.36%$23.9M1.15%2,470,110−31.5%
26SIBNSI BONE INC$15.121.61%-20.00%-50.16%$22.0M1.06%+858,942+97.6%
27SIMOSILICON MOTION TECHNOLOGY CO$258.70-12.21%292.74%283.82%$21.9M1.06%33,877−14.8%
28YSSYORK SPACE SYSTEMS INC$29.14-1.79%-14.17%13.83%$21.5M1.04%+967,610NEW
29RBCRBC BEARINGS INC$590.090.06%54.76%162.10%$20.9M1.01%10,264−21.1%
30MTRNMATERION CORP$220.75-2.94%177.57%217.26%$20.9M1.01%+6,250+4.5%
31APPSDIGITAL TURBINE INC$9.01-3.33%$20.5M0.99%+762,888+12.0%
32CWSTCASELLA WASTE SYS INC$85.902.69%$19.9M0.96%7,453−2.9%
33GTESGATES INDL CORP PLC$25.63-1.84%$17.5M0.85%60,119−7.2%
34GLBEGLOBAL E ONLINE LTD$32.13-2.31%$16.9M0.82%644,923−54.1%
35ARLOARLO TECHNOLOGIES INC$12.80-1.01%$16.6M0.80%+831,108+245.6%
36ZETAZETA GLOBAL HOLDINGS CORP$22.02-4.88%$16.3M0.79%1,593,143−60.9%
37TCBITEXAS CAP BANCSHARES INC$101.69-0.64%$16.3M0.79%7,002−3.9%
38AMRCAMERESCO INC$28.46-13.05%$16.1M0.78%217,934−25.7%
39LEUCENTRUS ENERGY CORP$161.78-13.34%$15.6M0.75%+14,455+19.2%
40KIDSORTHOPEDIATRICS CORP$18.321.22%$14.2M0.69%+232,760+35.1%
41STRLSTERLING INFRASTRUCTURE INC$882.43-11.20%$14.0M0.68%24,816−42.0%
42SNSHARKNINJA INC$119.82-2.96%$14.0M0.67%+18,875+16.7%
43COMPCOMPASS INC$7.71-2.16%$13.8M0.67%1,250,911−39.9%
44BLFSBIOLIFE SOLUTIONS INC$26.65-1.62%$13.8M0.67%+239,701+49.7%
45ALHCALIGNMENT HEALTHCARE INC$15.371.99%$13.8M0.67%+31,013+4.1%
46UMACUNUSUAL MACHS INC$26.70-17.34%$12.6M0.61%138,051−12.0%
47AIPARTERIS INC$34.28-7.82%$11.7M0.57%+476,181+201.0%
48FWRGFIRST WATCH RESTAURANT GROUP$10.18-0.59%$11.4M0.55%363,200−25.0%
49DAVEDAVE INC$258.25-1.31%$11.4M0.55%+63,551+3325.5%
50IRTCIRHYTHM HOLDINGS INC$108.110.70%$11.3M0.55%+81,645+567.9%
51STOKSTOKE THERAPEUTICS INC$30.01-0.37%$10.9M0.53%+144,189+75.3%
52VKTXVIKING THERAPEUTICS INC$28.45-4.47%$10.8M0.52%+96,606+41.0%
53TOSTTOAST INC$24.64-2.30%$10.6M0.51%638,079−61.5%
54LASRNLIGHT INC$65.85-12.07%$10.6M0.51%+185,271NEW
55RGENREPLIGEN CORP$122.31-3.35%$10.2M0.50%+14,951+20.8%
56HQYHEALTHEQUITY INC$88.673.07%$10.2M0.49%+31,079+34.1%
57CELCCELCUITY INC$88.28-4.53%$10.1M0.49%+1,801+2.1%
58STEPSTEPSTONE GROUP INC$44.91-3.17%$10.1M0.49%77,083−26.7%
59KNSAKINIKSA PHARMACEUTICALS INTL$48.42-1.65%$10.1M0.49%106,957−33.8%
60UTIUNIVERSAL TECHNICAL INST INC$43.57-2.96%$8.8M0.42%196,859−44.8%
61CHYMCHIME FINL INC$17.48-3.74%$8.4M0.40%+330,397+285.4%
62PHRPHREESIA INC$9.54-1.55%$8.3M0.40%1,412,006−58.8%
63ENVXENOVIX CORPORATION$7.28-12.92%$8.2M0.40%374,979−19.1%
64JBTMJBT MAREL CORPORATION$124.00-0.97%$8.1M0.39%+1,168+1.9%
65SRRKSCHOLAR ROCK HLDG CORP$44.30-2.27%$7.7M0.37%+2,545+1.7%
66ACHRARCHER AVIATION INC$5.54-13.17%$7.7M0.37%232,424−13.6%
67BBIOBRIDGEBIO PHARMA INC$67.610.42%$7.6M0.37%+1,106+1.1%
68LPTHLIGHTPATH TECHNOLOGIES INC$14.93-15.27%$7.6M0.37%+97,601+14.9%
69AVAVAEROVIRONMENT INC$185.92-9.04%$7.5M0.36%+40,736NEW
70SNDXSYNDAX PHARMACEUTICALS INC$17.34-3.77%$7.2M0.35%60,472−16.5%
71MECMAYVILLE ENGR CO INC$33.251.74%$7.0M0.34%+119,708+44.7%
72CHEFCHEFS WHSE INC$80.744.13%$6.8M0.33%+45,776+66.5%
73ALGMALLEGRO MICROSYSTEMS INC$46.39-13.48%$6.8M0.33%+125,144+139.3%
74RYTMRHYTHM PHARMACEUTICALS INC$86.40-1.38%$6.8M0.33%+24,257+45.4%
75IMNMIMMUNOME INC$18.58-5.59%$6.7M0.32%128,102−29.4%
76MPMP MATERIALS CORP$59.18-9.59%$6.7M0.32%+10,241+8.0%
77LINDLINDBLAD EXPEDITIONS HLDGS I$21.66-2.39%$6.7M0.32%+39,809+11.5%
78VECOVEECO INSTRS INC DEL$58.45-8.18%$6.5M0.32%30,547−13.7%
79WSCWILLSCOT HLDGS CORP$26.21-1.02%$6.5M0.32%+77,932+26.2%
80CSGPCOSTAR GROUP INC$33.890.68%$6.5M0.31%+69,118+75.2%
81LIFEETHOS TECHNOLOGIES INC$16.82-2.10%$6.5M0.31%+580,595NEW
82BETABETA TECHNOLOGIES INC$17.13-5.52%$6.3M0.31%6,393−1.5%
83EWTXEDGEWISE THERAPEUTICS INC$35.59-4.41%$6.3M0.31%31,452−13.5%
84APGEAPOGEE THERAPEUTICS INC$86.92-4.38%$6.3M0.31%19,634−20.7%
85ZYMEZYMEWORKS INC$24.04-4.22%$6.3M0.30%+26,365+11.7%
86WGSGENEDX HOLDINGS CORP$52.21-7.22%$6.2M0.30%+65,695+212.5%
87FROGJFROG LTD$84.00-2.51%$6.1M0.30%20,477−13.6%
88OWLTOWLET INC$4.67-8.61%$6.1M0.30%+499,906+72.8%
89XENEXENON PHARMACEUTICALS INC$51.73-2.38%$6.1M0.29%+11,700+12.6%
90IMVTIMMUNOVANT INC$31.11-4.78%$6.1M0.29%+14,242+6.2%
91CCOICOGENT COMM HOLDINGS INC$16.83-2.66%$6.0M0.29%+100,422+46.3%
92NTNXNUTANIX INC$53.64-2.42%$5.9M0.29%+4,317+2.8%
93CALYCALLAWAY GOLF CO$14.80-1.33%$5.9M0.28%+422,920NEW
94LSCCLATTICE SEMICONDUCTOR CORP$135.57-10.76%$5.8M0.28%+3,626+6.1%
95RDNTRADNET INC$54.342.90%$5.8M0.28%+104,282NEW
96NPKINPK INTERNATIONAL INC$14.28-2.33%$5.8M0.28%178,789−30.8%
97KNSLKINSALE CAP GROUP INC$306.123.52%$5.6M0.27%3,170−16.1%
98CECOCECO ENVIRONMENTAL CORP$78.02-3.80%$5.5M0.27%16,161−14.8%
99FNFABRINET$621.25-13.09%$5.4M0.26%1,446−12.2%
100XERSXERIS BIOPHARMA HOLDINGS INC$6.180.49%$5.3M0.26%301,550−24.6%
101ONTMONTROSE ENVIRONMENTAL GROUP$5.3M0.26%+42,470+21.3%
102CRDOCREDO TECHNOLOGY GROUP HOLDI$5.3M0.25%35,671−38.9%
103TSEMTOWER SEMICONDUCTOR LTD$5.2M0.25%26,893−47.4%
104BOOTBOOT BARN HLDGS INC$5.2M0.25%4,040−10.2%
105LGNDLIGAND PHARMACEUTICALS INC$4.8M0.23%1,885−7.2%
106CYTKCYTOKINETICS INC$4.8M0.23%9,657−11.8%
107RGTIRIGETTI COMPUTING INC$4.6M0.22%+105,494+47.7%
108NUVLNUVALENT INC$4.4M0.21%+2,792+6.9%
109CRVLCORVEL CORP$4.4M0.21%+21,217+36.2%
110MASS908 DEVICES INC$4.3M0.21%+603,929+662.6%
111IONQIONQ INC$4.2M0.20%+39,290+36.8%
112RVMDREVOLUTION MEDICINES INC$4.1M0.20%56,621−57.1%
113MLTXMOONLAKE IMMUNOTHERAPEUTICS$4.1M0.20%+22,293+11.2%
114CORZCORE SCIENTIFIC INC NEW$4.1M0.20%78,334−22.3%
115ALKTALKAMI TECHNOLOGY INC$4.0M0.19%12,398−4.7%
116DSGXDESCARTES SYS GROUP INC$4.0M0.19%+22,016+66.2%
117TSHATAYSHA GENE THERAPIES INC$3.9M0.19%+179,270+25.5%
118SLNOSOLENO THERAPEUTICS INC$3.8M0.19%22,767−16.5%
119EYPTEYEPOINT INC$3.8M0.19%69,567−19.0%
120ANABANAPTYSBIO INC$3.7M0.18%59,673−47.4%
121ROGROGERS CORP$3.5M0.17%+32,869NEW
122NVMINOVA LTD$3.5M0.17%5,798−42.1%
123CDNLCARDINAL INFRASTRUCTURE GROU$3.3M0.16%+82,464NEW
124OKTAOKTA INC$3.2M0.16%8,309−16.9%
125VIAVVIAVI SOLUTIONS INC$3.2M0.15%+95,761NEW
126NTSKNETSKOPE INC$3.1M0.15%+165,117+81.6%
127BWXTBWX TECHNOLOGIES INC$3.0M0.15%2,651−15.3%
128DOCNDIGITALOCEAN HLDGS INC$2.9M0.14%+33,699NEW
129PTGXPROTAGONIST THERAPEUTICS INC$2.9M0.14%+27,391NEW
130AGYSAGILYSYS INC$2.7M0.13%4,757−11.3%
131GNRCGENERAC HLDGS INC$2.6M0.12%+13,213NEW
132GRALGRAIL INC$2.6M0.12%880−1.7%
133BBNXBETA BIONICS INC$2.5M0.12%+127,203+104.9%
134NEOGNEOGEN CORP$2.3M0.11%+250,026NEW
135BBOTBRIDGEBIO ONCOLOGY THERAPEUT$2.1M0.10%+231,040NEW
136EXLSEXLSERVICE HLDGS INC$1.9M0.09%+14,880+30.9%
137CYRXCRYOPORT INC$1.9M0.09%+190,938+475.0%
138UAMYUNITED STATES ANTIMONY CORP$1.9M0.09%260,807−54.4%
139WRBYWARBY PARKER INC$1.7M0.08%+81,924NEW
140ELVAELECTROVAYA INC$1.6M0.08%+5,234+2.7%
141SGSWEETGREEN INC$1.5M0.07%+283,646NEW
142RCATRED CAT HLDGS INC$1.4M0.07%22,969−17.3%
143AZTAAZENTA INC$866K0.04%163,680−80.0%
144CEVACEVA INC$565K0.03%+9,991+49.3%
145IRMDIRADIMED CORP$472K0.02%+8+0.2%
146TRNSTRANSCAT INC$436K0.02%185,639−96.9%
147ADTNADTRAN HOLDINGS INC$387K0.02%24,058−43.9%
148SSSSSURO CAPITAL CORP$231K0.01%HELD
149TGENTECOGEN INC NEW$227K0.01%89,326−50.2%
150ODDODDITY TECH LTD1,523,204EXITED
151KVYOKLAVIYO INC605,271EXITED
152WLTHWEALTHFRONT CORP1,386,092EXITED
153HUBSHUBSPOT INC37,831EXITED
154LITELUMENTUM HLDGS INC28,498EXITED
155STKLSUNOPTA INC2,670,652EXITED
156VITLVITAL FARMS INC216,551EXITED
157LENZLENZ THERAPEUTICS INC431,100EXITED
158EXKEXACT SCIENCES CORP57,212EXITED
159CVLTCOMMVAULT SYS INC44,706EXITED
160ELFE L F BEAUTY INC73,239EXITED
161BELFBBEL FUSE INC29,884EXITED
162SLABSILICON LABORATORIES INC32,019EXITED
163CERTCERTARA INC460,797EXITED
164RCUSARCUS BIOSCIENCES INC169,940EXITED
165SHLSSHOALS TECHNOLOGIES GROUP IN363,482EXITED
166VERXVERTEX INC150,299EXITED
167VRNSVARONIS SYS INC84,421EXITED
168SPSCSPS COMM INC28,004EXITED
169RDWREDWIRE CORPORATION316,942EXITED
170WEAVWEAVE COMMUNICATIONS INC280,610EXITED
171TALKTALKSPACE INC581,666EXITED
172OPRXOPTIMIZERX CORP117,122EXITED
173AMPXAMPRIUS TECHNOLOGIES INC64,382EXITED
174IWOISHARES TR1,126EXITED

Source: SEC EDGAR · accession 0001398344-26-009220. 13F discloses long positions only — shorts, foreign equities, and options are excluded.