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SRFM

Shannon River Fund Management Portfolio holdings

AUM $524M
1-Year Est. Return 90.54%
This Fund
S&P 500
This Quarter Est. Return
+11.62%
1 Year Est. Return
+90.54%
3 Year Est. Return
+337.23%
5 Year Est. Return
+451.33%
10 Year Est. Return
+3,164.49%
AUM
$638M
AUM Growth
+$16.3M
Cap. Flow
-$12.7M
Cap. Flow %
-2%
Top 10 Hldgs %
63.01%
Holding
32
New
12
Increased
3
Reduced
9
Closed
6

Top Buys

1
U icon
Unity
U
+$43.4M
2
LYV icon
Live Nation Entertainment
LYV
+$36.7M
3
EXTR icon
Extreme Networks
EXTR
+$35M
4
CLS icon
Celestica
CLS
+$32.3M
5
ALAB icon
Astera Labs
ALAB
+$28M

Top Sells

1
IDCC icon
InterDigital
IDCC
+$44.3M
2
FROG icon
JFrog
FROG
+$40.9M
3
FORM icon
FormFactor
FORM
+$35.3M
4
TSEM icon
Tower Semiconductor
TSEM
+$34.6M
5
WIX icon
WIX.com
WIX
+$34.3M

Sector Composition

1 Technology 88.48%
2 Communication Services 5.71%
3 Industrials 4.11%
4 Healthcare 1.7%
5 Consumer Staples 0%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
TSEM icon
1
Tower Semiconductor
TSEM
$26.5B
$70.8M 11.1%
602,804
-359,259
-37% -$34.6M
PEGA icon
2
Pegasystems
PEGA
$5.37B
$62M 9.73%
1,038,832
-345,387
-25% -$20.2M
U icon
3
Unity
U
$12.7B
$47.1M 7.38%
+1,065,452
New +$43.4M
LYV icon
4
Live Nation Entertainment
LYV
$41.9B
$36.4M 5.71%
+255,433
New +$36.7M
MRVL icon
5
Marvell Technology
MRVL
$169B
$32.1M 5.03%
377,684
-45,960
-11% -$4.02M
EXTR icon
6
Extreme Networks
EXTR
$3.97B
$31.7M 4.97%
+1,904,528
New +$35M
CLS icon
7
Celestica
CLS
$34.6B
$31.7M 4.97%
+107,130
New +$32.3M
COHR icon
8
Coherent
COHR
$54.3B
$31M 4.86%
167,918
+78,662
+88% +$11.8M
CWAN
9
DELISTED
Clearwater Analytics
CWAN
$29.8M 4.68%
1,236,412
+558,719
+82% +$11.2M
NCNO icon
10
nCino
NCNO
$1.96B
$29.1M 4.57%
1,135,922
-442,974
-28% -$11.2M
ALAB icon
11
Astera Labs
ALAB
$52B
$27.9M 4.37%
+167,641
New +$28M
GWRE icon
12
Guidewire Software
GWRE
$12.5B
$25.3M 3.97%
126,057
– –
KVYO icon
13
Klaviyo
KVYO
$5.29B
$23.7M 3.72%
+729,703
New +$20.4M
CRDO icon
14
Credo Technology Group
CRDO
$37.8B
$21.6M 3.38%
149,966
+63,399
+73% +$9.75M
AMBA icon
15
Ambarella
AMBA
$2.71B
$21.3M 3.35%
+301,093
New +$24.3M
FLEX icon
16
Flex
FLEX
$43.7B
$18.9M 2.97%
313,273
-536,143
-63% -$33.1M
IDCC icon
17
InterDigital
IDCC
$6.73B
$17M 2.67%
53,490
-125,230
-70% -$44.3M
LGN
18
Legence Corp
LGN
$5.25B
$14.4M 2.26%
+334,863
New +$13.2M
AXON
19
Axon Enterprise
AXON
$41.1B
$11.8M 1.85%
+20,716
New +$12.9M
HNGE
20
Hinge Health
HNGE
$6.74B
$10.8M 1.7%
+233,354
New +$11.2M
DOCU
21
DocuSign
DOCU
$10.1B
$10.7M 1.68%
156,813
-126,702
-45% -$8.76M
CCC
22
CCC Intelligent Solutions
CCC
$3.55B
$8.55M 1.34%
1,075,546
– –
QCOM icon
23
Qualcomm
QCOM
$181B
$7.9M 1.24%
+46,212
New +$7.92M
MU icon
24
Micron Technology
MU
$959B
$5.82M 0.91%
+20,400
New +$4.68M
PLTR icon
25
Palantir
PLTR
$317B
$5.15M 0.81%
28,965
-28,145
-49% -$5.1M
1
2

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Shannon River Fund Management's Q4 2025 Portfolio in Review

As of Q4 2025, Shannon River Fund Management held 32 positions worth $638M, up 2.6% from $621M the previous quarter. Its ten largest holdings account for 63% of the portfolio.

Shannon River Fund Management's Q4 2025 filing shows 12 new, 3 increased, 9 reduced and 6 closed positions. Its largest new stake was Unity: 1,065,452 shares worth $47.1M. The largest sale was InterDigital, an estimated $44.3M.

By sector, the portfolio is most concentrated in Technology at 88% of assets, down from 94% a quarter earlier, followed by Communication Services and Industrials.

  • Shannon River Fund Management's largest Q4 2025 buy was Unity: 1,065,452 shares worth $47.1M.
  • Shannon River Fund Management added most to Coherent in Q4 2025, an estimated $11.8M increase.
  • Shannon River Fund Management's biggest Q4 2025 reduction was InterDigital, cutting an estimated $44.3M.
  • Shannon River Fund Management fully exited JFrog in Q4 2025, selling an estimated $40.9M.
  • Shannon River Fund Management's ten largest holdings make up 63% of its $638M portfolio in Q4 2025.
  • Shannon River Fund Management opened 12 new positions and closed 6 in Q4 2025.
  • Shannon River Fund Management's portfolio value rose 2.6% quarter-over-quarter to $638M.

Based on Shannon River Fund Management's 13F filing for Q4 2025, filed 17 Feb 2026.