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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
ADTN icon
151
Adtran
ADTN
$634M
$477K 0.02%
54,840
-527,650
-91% -$4.58M
IRMD icon
152
iRadimed
IRMD
$1.17B
$476K 0.02%
4,892
-1,723
-26% -$148K
CEVA icon
153
CEVA Inc
CEVA
$876M
$436K 0.02%
20,269
+2,538
+14% +$62.3K
DAVE icon
154
Dave Inc
DAVE
$3.95B
$423K 0.02%
1,911
-10,126
-84% -$2.18M
CYRX icon
155
CryoPort
CYRX
$766M
$386K 0.02%
+40,200
New +$380K
IWO icon
156
iShares Russell 2000 Growth ETF
IWO
$15B
$364K 0.02%
+1,126
New +$366K
NSLR
157
Neostellar Capital Corp
NSLR
$278M
$203K 0.01%
21,549
-13,050
-38% -$123K
ACVA icon
158
ACV Auctions
ACVA
$1.21B
– –
-651,344
Closed -$6.45M
CFLT
159
DELISTED
Confluent
CFLT
– –
-191,479
Closed -$3.79M
CIEN icon
160
Ciena
CIEN
$55.1B
– –
-24,612
Closed -$3.59M
FOUR icon
161
Shift4
FOUR
$3.39B
– –
-196,810
Closed -$15.2M
GRBK icon
162
Green Brick Partners
GRBK
$3.05B
– –
-61,870
Closed -$4.57M
HBIO icon
163
Harvard Bioscience
HBIO
$28.5M
– –
-60,352
Closed -$265K
IDCC icon
164
InterDigital
IDCC
$8.94B
– –
-7,455
Closed -$2.57M
INSM icon
165
Insmed
INSM
$29B
– –
-13,402
Closed -$1.93M
CALY
166
Callaway Golf Company
CALY
$3.06B
– –
-440,926
Closed -$4.19M
MRUS
167
DELISTED
Merus
MRUS
– –
-66,208
Closed -$6.23M
NCLH icon
168
Norwegian Cruise Line
NCLH
$8.63B
– –
-401,759
Closed -$9.9M
NEXN
169
Nexxen International
NEXN
$598M
– –
-241,710
Closed -$2.24M
NTLA icon
170
Intellia Therapeutics
NTLA
$1.66B
– –
-342,586
Closed -$5.92M
NTRA icon
171
Natera
NTRA
$45.7B
– –
-20,419
Closed -$3.29M
POWL icon
172
Powell Industries
POWL
$7.8B
– –
-50,292
Closed -$5.11M
SG icon
173
Sweetgreen
SG
$669M
– –
-214,411
Closed -$1.71M
3 4 5 6
7

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BC
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AG
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TA
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ACP
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TP
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NSUP
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ACG
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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.