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GIM

Granahan Investment Management Portfolio holdings

AUM $2.07B
1-Year Est. Return 56.45%
This Fund
S&P 500
This Quarter Est. Return
+0.46%
1 Year Est. Return
+56.45%
3 Year Est. Return
+154.74%
5 Year Est. Return
+144.99%
10 Year Est. Return
+2,522.93%
AUM
$2.34B
AUM Growth
-$107M
Cap. Flow
+$15.5M
Cap. Flow %
0.67%
Top 10 Hldgs %
29.8%
Holding
173
New
27
Increased
68
Reduced
62
Closed
16

Top Buys

Rank Stock Value
1
ZETA icon
Zeta Global
ZETA
+$25.7M
2
PRCH icon
Porch Group
PRCH
+$23.5M
3
PHR icon
Phreesia
PHR
+$21M
4
MOD icon
Modine Manufacturing
MOD
+$20.8M
5
STRL icon
Sterling Infrastructure
STRL
+$20.4M

Top Sells

Rank Stock Value
1
FIX icon
Comfort Systems
FIX
+$61.6M
2
SPSC icon
SPS Commerce
SPSC
+$34.2M
3
LEU icon
Centrus Energy
LEU
+$28.2M
4
EXAS
Exact Sciences
EXAS
+$18M
5
DSGX icon
Descartes Systems
DSGX
+$16.3M

Sector Composition

Rank Sector Weight
1 Technology 28.03%
2 Industrials 20.7%
3 Healthcare 14.38%
4 Financials 12.85%
5 Consumer Discretionary 10.1%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
KNSA icon
51
Kiniksa Pharmaceuticals
KNSA
$5.97B
$13M 0.56%
316,213
+32,642
+12% +$1.31M
ACHR icon
52
Archer Aviation
ACHR
$4.78B
$12.9M 0.55%
1,713,170
-1,226,930
-42% -$11.5M
SN icon
53
SharkNinja
SN
$26.2B
$12.6M 0.54%
112,863
+27,274
+32% +$2.69M
BETA
54
Beta Technologies Inc
BETA
$5.48B
$12.4M 0.53%
+438,351
New +$13.1M
RGEN icon
55
Repligen
RGEN
$9.21B
$11.8M 0.51%
72,002
+2,131
+3% +$334K
KIDS icon
56
OrthoPediatrics
KIDS
$608M
$11.8M 0.51%
663,981
-95,970
-13% -$1.68M
BLFS icon
57
BioLife Solutions
BLFS
$1.69B
$11.7M 0.5%
482,356
+90,260
+23% +$2.36M
UTI icon
58
Universal Technical Institute
UTI
$1.47B
$11.5M 0.49%
439,252
+315,006
+254% +$8.92M
OWLT icon
59
Owlet
OWLT
$158M
$11.1M 0.48%
686,749
+176,845
+35% +$2M
TRNS icon
60
Transcat
TRNS
$850M
$10.9M 0.47%
191,580
-36,985
-16% -$2.31M
LITE icon
61
Lumentum
LITE
$63.3B
$10.5M 0.45%
28,498
-4,383
-13% -$1.13M
STKL
62
DELISTED
SunOpta
STKL
$10.1M 0.43%
2,670,652
-57,599
-2% -$261K
XERS icon
63
Xeris Biopharma Holdings
XERS
$1.46B
$9.6M 0.41%
1,223,404
+873,236
+249% +$6.87M
FROG icon
64
JFrog
FROG
$10.7B
$9.41M 0.4%
150,580
-13,895
-8% -$790K
JBTM
65
JBT Marel
JBTM
$6.35B
$9.35M 0.4%
62,044
-1,321
-2% -$186K
IMNM icon
66
Immunome
IMNM
$2.91B
$9.35M 0.4%
435,123
+8,904
+2% +$156K
CELC icon
67
Celcuity
CELC
$4.43B
$8.68M 0.37%
87,032
+37,751
+77% +$3.1M
HQY icon
68
HealthEquity
HQY
$8.93B
$8.34M 0.36%
+91,020
New +$8.71M
VKTX icon
69
Viking Therapeutics
VKTX
$4.02B
$8.29M 0.35%
235,586
+46,057
+24% +$1.63M
RVMD icon
70
Revolution Medicines
RVMD
$44.4B
$7.9M 0.34%
99,194
-19,498
-16% -$1.28M
NTNX icon
71
Nutanix
NTNX
$17.4B
$7.86M 0.34%
152,001
-21,108
-12% -$1.29M
BBIO icon
72
BridgeBio Pharma
BBIO
$16.6B
$7.79M 0.33%
101,805
-59,473
-37% -$3.9M
SNDX icon
73
Syndax Pharmaceuticals
SNDX
$1.82B
$7.71M 0.33%
366,793
-29,543
-7% -$515K
KNSL icon
74
Kinsale Capital Group
KNSL
$8.4B
$7.7M 0.33%
19,686
+4,064
+26% +$1.66M
APGE icon
75
Apogee Therapeutics
APGE
$10.2B
$7.15M 0.31%
94,720
-37,680
-28% -$2.37M
1 2
3
4 5

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Granahan Investment Management's Q4 2025 Portfolio in Review

As of Q4 2025, Granahan Investment Management held 173 positions worth $2.34B, down 4.4% from $2.44B the previous quarter. Its ten largest holdings account for 30% of the portfolio.

Granahan Investment Management's Q4 2025 filing shows 27 new, 68 increased, 62 reduced and 16 closed positions. Its largest new stake was Sterling Infrastructure: 59,148 shares worth $18.1M. The largest sale was Comfort Systems, an estimated $61.6M.

By sector, the portfolio is most concentrated in Technology at 28% of assets, up from 27% a quarter earlier, followed by Industrials and Healthcare.

  • Granahan Investment Management's largest Q4 2025 buy was Sterling Infrastructure: 59,148 shares worth $18.1M.
  • Granahan Investment Management added most to Zeta Global in Q4 2025, an estimated $25.7M increase.
  • Granahan Investment Management's biggest Q4 2025 reduction was Comfort Systems, cutting an estimated $61.6M.
  • Granahan Investment Management fully exited Shift4 in Q4 2025, selling an estimated $15.2M.
  • Granahan Investment Management's ten largest holdings make up 30% of its $2.34B portfolio in Q4 2025.
  • Granahan Investment Management opened 27 new positions and closed 16 in Q4 2025.
  • Granahan Investment Management's portfolio value fell 4.4% quarter-over-quarter to $2.34B.

Based on Granahan Investment Management's 13F filing for Q4 2025, filed 17 Feb 2026.