We are live on ! Find out more
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
TSHA icon
126
Taysha Gene Therapies
TSHA
$1.84B
$3.87M 0.17%
703,971
-412,658
-37% -$2M
BBNX
127
Beta Bionics
BBNX
$741M
$3.69M 0.16%
121,246
+35,505
+41% +$948K
AIP icon
128
Arteris
AIP
$1.35B
$3.67M 0.16%
236,896
-384,729
-62% -$5.58M
NTSK
129
Netskope Inc
NTSK
$6.21B
$3.55M 0.15%
202,461
+105,365
+109% +$2.2M
SHLS icon
130
Shoals Technologies Group
SHLS
$1.47B
$3.09M 0.13%
363,482
+349,404
+2,482% +$3.14M
VERX icon
131
Vertex
VERX
$1.97B
$3M 0.13%
150,299
-139,010
-48% -$3.01M
BWXT icon
132
BWX Technologies
BWXT
$15.6B
$3M 0.13%
17,355
+6,828
+65% +$1.28M
DSGX icon
133
Descartes Systems
DSGX
$6.87B
$2.91M 0.12%
33,237
-182,707
-85% -$16.3M
CHYM
134
Chime Financial
CHYM
$12.2B
$2.91M 0.12%
+115,755
New +$2.46M
VRNS icon
135
Varonis Systems
VRNS
$4.87B
$2.77M 0.12%
84,421
-79,711
-49% -$3.35M
MLTX icon
136
MoonLake Immunotherapeutics
MLTX
$1.4B
$2.61M 0.11%
+198,307
New +$2.34M
IRTC icon
137
iRhythm Holdings
IRTC
$3.99B
$2.55M 0.11%
14,377
-563
-4% -$99.8K
SPSC icon
138
SPS Commerce
SPSC
$2.7B
$2.5M 0.11%
28,004
-368,776
-93% -$34.2M
RDW icon
139
Redwire
RDW
$3.3B
$2.41M 0.1%
+316,942
New +$2.33M
UAMY icon
140
United States Antimony
UAMY
$982M
$2.4M 0.1%
+478,991
New +$3.76M
ALGM icon
141
Allegro MicroSystems
ALGM
$8.08B
$2.37M 0.1%
+89,857
New +$2.47M
WEAV icon
142
Weave Communications
WEAV
$414M
$2.13M 0.09%
280,610
+16,212
+6% +$108K
TALK icon
143
Talkspace
TALK
$867M
$2.11M 0.09%
+581,666
New +$1.84M
EXLS icon
144
EXL Service
EXLS
$5.34B
$2.05M 0.09%
48,206
-117,787
-71% -$4.82M
ELVA
145
Electrovaya
ELVA
$375M
$1.54M 0.07%
+194,961
New +$1.18M
OPRX icon
146
OptimizeRx
OPRX
$131M
$1.44M 0.06%
117,122
+46,076
+65% +$753K
RCAT icon
147
Red Cat Holdings
RCAT
$1.6B
$1.05M 0.05%
+132,572
New +$1.27M
TGEN
148
Tecogen Inc
TGEN
$118M
$878K 0.04%
177,822
+65,484
+58% +$491K
AMPX icon
149
Amprius Technologies
AMPX
$1.73B
$508K 0.02%
+64,382
New +$736K
MASS icon
150
908 Devices
MASS
$400M
$478K 0.02%
91,141
+26,803
+42% +$187K
3 4 5
6
7

Similar funds

BC
BIT Capital Berlin, Germany $2.07B AUM 157.17% 1-Year Est. Return
AG
Avala Global New York $2.08B AUM 87.66% 1-Year Est. Return
TA
TruWealth Advisors Metairie, Louisiana $2.08B AUM 21.15% 1-Year Est. Return
ACP
Avantyr Capital Partners New York $2.08B AUM
TP
Third Point New York $2.08B AUM 27.04% 1-Year Est. Return
NSUP
NLB Skladi upravljanje premozenja Ljubljana $2.09B AUM
ACG
Aventail Capital Group New York $2.09B AUM 43.81% 1-Year Est. Return
CL
CSS LLC Chicago, Illinois $2.09B AUM 58.96% 1-Year Est. Return

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.