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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
+14.44%
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
$2.44B
AUM Growth
-$14.3M
Cap. Flow
-$170M
Cap. Flow %
-6.94%
Top 10 Hldgs %
34.31%
Holding
172
New
19
Increased
60
Reduced
66
Closed
26

Top Buys

Rank Stock Value
1
CLBT icon
Cellebrite
CLBT
+$37.9M
2
KRUS icon
Kura Sushi USA
KRUS
+$29.8M
3
FTAI icon
FTAI Aviation
FTAI
+$20.3M
4
NXT icon
Nextpower Inc
NXT
+$18.4M
5
FIGR
Figure Technology Solutions
FIGR
+$17.8M

Top Sells

Rank Stock Value
1
MRX
Marex Group Limited Ordinary Shares
MRX
+$36.9M
2
PRCH icon
Porch Group
PRCH
+$30.6M
3
CRCL
Circle Internet Group
CRCL
+$25.2M
4
SMTC icon
Semtech
SMTC
+$19M
5
PAR icon
PAR Technology
PAR
+$18.1M

Sector Composition

Rank Sector Weight
1 Technology 27.47%
2 Industrials 19.96%
3 Financials 13.94%
4 Healthcare 11.25%
5 Consumer Discretionary 9.3%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
SRRK icon
101
Scholar Rock
SRRK
$6.37B
$4.84M 0.2%
129,914
+56,539
+77% +$1.98M
MEC icon
102
Mayville Engineering Co
MEC
$581M
$4.81M 0.2%
349,267
-149,038
-30% -$2.24M
GRBK icon
103
Green Brick Partners
GRBK
$3.05B
$4.57M 0.19%
61,870
-42,425
-41% -$2.9M
ANAB icon
104
AnaptysBio
ANAB
$1.68B
$4.52M 0.19%
147,773
+16,118
+12% +$370K
LGND icon
105
Ligand Pharmaceuticals
LGND
$5.8B
$4.42M 0.18%
+24,962
New +$3.71M
OWLT icon
106
Owlet
OWLT
$160M
$4.32M 0.18%
509,904
+293,771
+136% +$2.32M
IMVT icon
107
Immunovant
IMVT
$8.18B
$4.29M 0.18%
266,221
+53,133
+25% +$860K
WSC icon
108
WillScot Mobile Mini Holdings
WSC
$4.2B
$4.23M 0.17%
200,447
-301,024
-60% -$7.75M
CALY
109
Callaway Golf Company
CALY
$3.04B
$4.19M 0.17%
440,926
-115,633
-21% -$1.07M
CCOI icon
110
Cogent Communications
CCOI
$517M
$4.18M 0.17%
108,989
-115,502
-51% -$4.82M
UTI icon
111
Universal Technical Institute
UTI
$1.46B
$4.04M 0.17%
124,246
+64,421
+108% +$1.89M
CFLT
112
DELISTED
Confluent
CFLT
$3.79M 0.16%
191,479
-132,573
-41% -$2.77M
TSHA icon
113
Taysha Gene Therapies
TSHA
$1.84B
$3.65M 0.15%
1,116,629
+158,136
+16% +$448K
CIEN icon
114
Ciena
CIEN
$54.7B
$3.59M 0.15%
24,612
-56,009
-69% -$5.7M
XENE icon
115
Xenon Pharmaceuticals
XENE
$6.2B
$3.51M 0.14%
87,470
-152,568
-64% -$5.37M
NTRA icon
116
Natera
NTRA
$45.8B
$3.29M 0.13%
20,419
+1,048
+5% +$166K
ARLO icon
117
Arlo Technologies
ARLO
$1.58B
$3.27M 0.13%
+192,918
New +$3.28M
CYTK icon
118
Cytokinetics
CYTK
$10.8B
$2.94M 0.12%
+53,550
New +$2.21M
XERS icon
119
Xeris Biopharma Holdings
XERS
$1.51B
$2.85M 0.12%
+350,168
New +$2.33M
CRVL icon
120
CorVel
CRVL
$3.11B
$2.72M 0.11%
35,151
-8,726
-20% -$778K
IDCC icon
121
InterDigital
IDCC
$8.9B
$2.57M 0.11%
7,455
-3,361
-31% -$913K
IRTC icon
122
iRhythm Holdings
IRTC
$4.02B
$2.57M 0.11%
14,940
+2,276
+18% +$362K
WGS icon
123
GeneDx Holdings
WGS
$2.38B
$2.55M 0.1%
23,709
+12,159
+105% +$1.32M
LSCC icon
124
Lattice Semiconductor
LSCC
$18.1B
$2.55M 0.1%
34,838
-78,628
-69% -$4.78M
ONT
125
Onterris Inc
ONT
$567M
$2.49M 0.1%
+90,740
New +$2.37M
3 4
5
6 7

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Granahan Investment Management's Q3 2025 Portfolio in Review

As of Q3 2025, Granahan Investment Management held 172 positions worth $2.44B, down 0.58% from $2.46B the previous quarter. Its ten largest holdings account for 34% of the portfolio.

Granahan Investment Management withdrew a net $170M in Q3 2025, closing 26 positions and reducing 66 holdings. Its most notable exit was Circle Internet Group, an estimated $25.2M position sold in full.

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

Against the trend, Granahan Investment Management opened a new position in Figure Technology Solutions worth $16.7M.

  • Granahan Investment Management's largest Q3 2025 buy was Figure Technology Solutions: 458,594 shares worth $16.7M.
  • Granahan Investment Management added most to Cellebrite in Q3 2025, an estimated $37.9M increase.
  • Granahan Investment Management's biggest Q3 2025 reduction was Marex Group Limited Ordinary Shares, cutting an estimated $36.9M.
  • Granahan Investment Management fully exited Circle Internet Group in Q3 2025, selling an estimated $25.2M.
  • Granahan Investment Management's ten largest holdings make up 34% of its $2.44B portfolio in Q3 2025.
  • Granahan Investment Management opened 19 new positions and closed 26 in Q3 2025.
  • Granahan Investment Management's portfolio value fell 0.58% quarter-over-quarter to $2.44B.

Based on Granahan Investment Management's 13F filing for Q3 2025, filed 14 Nov 2025.