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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
FIGR
26
Figure Technology Solutions
FIGR
$6.37B
$27.2M 1.16%
665,518
+206,924
+45% +$8.28M
CWST icon
27
Casella Waste Systems
CWST
$5.72B
$25.2M 1.08%
257,715
-56,629
-18% -$5.26M
AMRC icon
28
Ameresco
AMRC
$1.34B
$24.8M 1.06%
848,007
-42,065
-5% -$1.48M
RMBS icon
29
Rambus
RMBS
$10.4B
$24.4M 1.04%
265,516
+27,073
+11% +$2.66M
FIX icon
30
Comfort Systems
FIX
$58.9B
$24.3M 1.04%
26,035
-66,737
-72% -$61.6M
FWRG icon
31
First Watch Restaurant Group
FWRG
$742M
$21.9M 0.94%
1,451,237
-216,095
-13% -$3.64M
RBC icon
32
RBC Bearings
RBC
$17.6B
$21.9M 0.94%
48,757
+2,907
+6% +$1.23M
SIMO icon
33
Silicon Motion
SIMO
$7.82B
$21.2M 0.91%
229,129
+21,371
+10% +$1.96M
KVYO icon
34
Klaviyo
KVYO
$5.09B
$19.7M 0.84%
605,271
+294,392
+95% +$8.25M
WLTH
35
Wealthfront Corp
WLTH
$1.42B
$18.8M 0.81%
+1,386,092
New +$18.4M
STEP icon
36
StepStone Group
STEP
$3.8B
$18.5M 0.79%
288,709
-92,746
-24% -$5.87M
LEU icon
37
Centrus Energy
LEU
$3.78B
$18.3M 0.78%
75,235
-93,425
-55% -$28.2M
STRL icon
38
Sterling Infrastructure
STRL
$16.2B
$18.1M 0.78%
+59,148
New +$20.4M
GTES icon
39
Gates Industrial Corporation Ltd.
GTES
$7.19B
$17.9M 0.77%
834,723
+152,413
+22% +$3.52M
SIBN icon
40
SI-BONE Inc
SIBN
$844M
$17.4M 0.74%
880,155
-159,494
-15% -$2.77M
MTRN icon
41
Materion
MTRN
$5.83B
$17.2M 0.74%
138,226
+43,950
+47% +$5.42M
TTMI icon
42
TTM Technologies
TTMI
$13.7B
$17.1M 0.73%
+247,375
New +$16.1M
TCBI icon
43
Texas Capital Bancshares
TCBI
$4.32B
$16.1M 0.69%
178,369
+8,579
+5% +$753K
QXO
44
QXO Inc
QXO
$16.6B
$15.4M 0.66%
799,612
+178,793
+29% +$3.43M
HUBS icon
45
HubSpot
HUBS
$10.8B
$15.2M 0.65%
37,831
+13,774
+57% +$5.71M
ALHC icon
46
Alignment Healthcare
ALHC
$2.86B
$14.8M 0.63%
749,487
+168,758
+29% +$3.03M
UMAC icon
47
Unusual Machines
UMAC
$1.36B
$14.7M 0.63%
+1,154,505
New +$13.5M
ENVX icon
48
Enovix
ENVX
$1.01B
$14.4M 0.61%
1,964,565
+214,916
+12% +$2.08M
CAVA icon
49
CAVA Group
CAVA
$7.17B
$13.5M 0.58%
+230,803
New +$12.9M
CRDO icon
50
Credo Technology Group
CRDO
$44.7B
$13.2M 0.57%
91,770
+7,845
+9% +$1.21M
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.