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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
+2.6%
1 Year Est. Return
+56.45%
3 Year Est. Return
+154.74%
5 Year Est. Return
+144.99%
10 Year Est. Return
+2,452.87%
AUM
$2.07B
AUM Growth
-$268M
Cap. Flow
-$133M
Cap. Flow %
-6.44%
Top 10 Hldgs %
33.65%
Holding
174
New
17
Increased
66
Reduced
65
Closed
25

Top Buys

Rank Stock Value
1
FPS
Forgent Power Solutions
FPS
+$68.9M
2
YSS
York Space Systems
YSS
+$23.5M
3
QXO
QXO Inc
QXO
+$16.2M
4
SIBN icon
SI-BONE Inc
SIBN
+$13.4M
5
DAVE icon
Dave Inc
DAVE
+$12.3M

Top Sells

Rank Stock Value
1
ODD icon
ODDITY Tech
ODD
+$61.2M
2
ZETA icon
Zeta Global
ZETA
+$29.5M
3
GLBE icon
Global E Online
GLBE
+$22.7M
4
CLBT icon
Cellebrite
CLBT
+$19.9M
5
KVYO icon
Klaviyo
KVYO
+$19.7M

Sector Composition

Rank Sector Weight
1 Industrials 28.28%
2 Technology 24.87%
3 Healthcare 14.19%
4 Financials 14.1%
5 Consumer Discretionary 11.74%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
NTSK
126
Netskope Inc
NTSK
$4.66B
$3.12M 0.15%
367,578
+165,117
+82% +$2.05M
BWXT icon
127
BWX Technologies
BWXT
$16B
$3.01M 0.15%
14,704
-2,651
-15% -$538K
DOCN icon
128
DigitalOcean
DOCN
$14.4B
$2.89M 0.14%
+33,699
New +$2.12M
PTGX icon
129
Protagonist Therapeutics
PTGX
$8.75B
$2.89M 0.14%
+27,391
New +$2.43M
AGYS icon
130
Agilysys
AGYS
$2.78B
$2.67M 0.13%
37,500
-4,757
-11% -$413K
GNRC icon
131
Generac Holdings
GNRC
$11.9B
$2.58M 0.12%
+13,213
New +$2.54M
GRAL
132
GRAIL Inc
GRAL
$2.91B
$2.56M 0.12%
49,628
-880
-2% -$68.2K
BBNX
133
Beta Bionics
BBNX
$706M
$2.49M 0.12%
248,449
+127,203
+105% +$1.88M
NEOG icon
134
Neogen
NEOG
$2.05B
$2.32M 0.11%
+250,026
New +$2.46M
BBOT
135
BridgeBio Oncology
BBOT
$707M
$2.07M 0.1%
+231,040
New +$2.48M
EXLS icon
136
EXL Service
EXLS
$4.23B
$1.92M 0.09%
63,086
+14,880
+31% +$513K
CYRX icon
137
CryoPort
CYRX
$775M
$1.91M 0.09%
231,138
+190,938
+475% +$1.72M
UAMY icon
138
United States Antimony
UAMY
$766M
$1.9M 0.09%
218,184
-260,807
-54% -$2.27M
WRBY icon
139
Warby Parker
WRBY
$3.01B
$1.73M 0.08%
+81,924
New +$2.03M
ELVA
140
Electrovaya
ELVA
$412M
$1.57M 0.08%
200,195
+5,234
+3% +$45.3K
SG icon
141
Sweetgreen
SG
$713M
$1.47M 0.07%
+283,646
New +$1.72M
RCAT icon
142
Red Cat Holdings
RCAT
$1.16B
$1.43M 0.07%
109,603
-22,969
-17% -$314K
AZTA icon
143
Azenta
AZTA
$1.26B
$866K 0.04%
40,996
-163,680
-80% -$4.89M
CEVA icon
144
CEVA Inc
CEVA
$1.01B
$565K 0.03%
30,260
+9,991
+49% +$210K
IRMD icon
145
iRadimed
IRMD
$1.21B
$472K 0.02%
4,900
+8
+0.2% +$800
TRNS icon
146
Transcat
TRNS
$793M
$436K 0.02%
5,941
-185,639
-97% -$13.1M
ADTN icon
147
Adtran
ADTN
$798M
$387K 0.02%
30,782
-24,058
-44% -$244K
NSLR
148
Neostellar Capital Corp
NSLR
$262M
$231K 0.01%
21,549
– –
TGEN
149
Tecogen Inc
TGEN
$96.3M
$227K 0.01%
88,496
-89,326
-50% -$328K
AMPX icon
150
Amprius Technologies
AMPX
$1.31B
– –
-64,382
Closed -$508K
3 4 5
6
7

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Granahan Investment Management's Q1 2026 Portfolio in Review

As of Q1 2026, Granahan Investment Management held 174 positions worth $2.07B, down 11% from $2.34B the previous quarter. Its ten largest holdings account for 34% of the portfolio.

Granahan Investment Management withdrew a net $133M in Q1 2026, closing 25 positions and reducing 65 holdings. Its most notable exit was ODDITY Tech, an estimated $61.2M position sold in full.

By sector, the portfolio is most concentrated in Industrials at 28% of assets, up from 21% a quarter earlier, followed by Technology and Healthcare.

Against the trend, Granahan Investment Management opened a new position in Forgent Power Solutions worth $60.6M.

  • Granahan Investment Management's largest Q1 2026 buy was Forgent Power Solutions: 2,071,084 shares worth $60.6M.
  • Granahan Investment Management added most to QXO Inc in Q1 2026, an estimated $16.2M increase.
  • Granahan Investment Management's biggest Q1 2026 reduction was Zeta Global, cutting an estimated $29.5M.
  • Granahan Investment Management fully exited ODDITY Tech in Q1 2026, selling an estimated $61.2M.
  • Granahan Investment Management's ten largest holdings make up 34% of its $2.07B portfolio in Q1 2026.
  • Granahan Investment Management opened 17 new positions and closed 25 in Q1 2026.
  • Granahan Investment Management's portfolio value fell 11% quarter-over-quarter to $2.07B.

Based on Granahan Investment Management's 13F filing for Q1 2026, filed 15 May 2026.