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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
+18.88%
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
$621M
AUM Growth
-$131M
Cap. Flow
-$228M
Cap. Flow %
-36.64%
Top 10 Hldgs %
80.86%
Holding
29
New
5
Increased
5
Reduced
10
Closed
9

Top Buys

1
FORM icon
FormFactor
FORM
+$31.2M
2
FROG icon
JFrog
FROG
+$29.2M
3
CLH icon
Clean Harbors
CLH
+$27.4M
4
WIX icon
WIX.com
WIX
+$14.7M
5
LRN icon
Stride
LRN
+$12.2M

Top Sells

1
COHR icon
Coherent
COHR
+$35.5M
2
TSEM icon
Tower Semiconductor
TSEM
+$27.6M
3
AFRM icon
Affirm
AFRM
+$24.7M
4
FLEX icon
Flex
FLEX
+$24M
5
MRVL icon
Marvell Technology
MRVL
+$21.1M

Sector Composition

1 Technology 93.68%
2 Industrials 4.33%
3 Consumer Staples 1.99%
4 Consumer Discretionary 0%
5 Financials 0%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
PEGA icon
1
Pegasystems
PEGA
$5.41B
$79.6M 12.81%
1,384,219
+11,654
+0.8% +$642K
TSEM icon
2
Tower Semiconductor
TSEM
$26.7B
$69.6M 11.2%
962,063
-505,441
-34% -$27.6M
IDCC icon
3
InterDigital
IDCC
$6.74B
$61.7M 9.93%
178,720
-57,851
-24% -$15.7M
WIX icon
4
WIX.com
WIX
$2.14B
$58.6M 9.44%
330,083
+97,835
+42% +$14.7M
FLEX icon
5
Flex
FLEX
$43.6B
$49.2M 7.93%
849,416
-452,500
-35% -$24M
NCNO icon
6
nCino
NCNO
$1.95B
$42.8M 6.89%
1,578,896
+339,863
+27% +$9.93M
FROG icon
7
JFrog
FROG
$10.6B
$40.9M 6.58%
863,924
+647,140
+299% +$29.2M
MRVL icon
8
Marvell Technology
MRVL
$170B
$35.6M 5.73%
423,644
-286,530
-40% -$21.1M
FORM icon
9
FormFactor
FORM
$8.2B
$35.3M 5.68%
+968,161
New +$31.2M
GWRE icon
10
Guidewire Software
GWRE
$12.4B
$29M 4.66%
126,057
-24,651
-16% -$5.61M
CLH icon
11
Clean Harbors
CLH
$16.3B
$26.9M 4.33%
+115,870
New +$27.4M
DOCU
12
DocuSign
DOCU
$10B
$20.4M 3.29%
283,515
-42,400
-13% -$3.27M
CRDO icon
13
Credo Technology Group
CRDO
$38.2B
$12.6M 2.03%
86,567
-103,753
-55% -$12.7M
LRN icon
14
Stride
LRN
$3.71B
$12.4M 1.99%
+82,928
New +$12.2M
CWAN
15
DELISTED
Clearwater Analytics
CWAN
$12.2M 1.97%
677,693
+10,412
+2% +$211K
PLTR icon
16
Palantir
PLTR
$316B
$10.4M 1.68%
57,110
-80,898
-59% -$13.1M
CCC
17
CCC Intelligent Solutions
CCC
$3.57B
$9.8M 1.58%
1,075,546
-2,256
-0.2% -$21.8K
COHR icon
18
Coherent
COHR
$54.4B
$9.61M 1.55%
89,256
-356,184
-80% -$35.5M
TSM icon
19
TSMC
TSM
$2.06T
$2.43M 0.39%
+8,701
New +$2.13M
BLZE icon
20
Backblaze
BLZE
$789M
$2.13M 0.34%
+229,384
New +$1.68M
AFRM icon
21
Affirm
AFRM
$25.5B
– –
-356,563
Closed -$24.7M
CART icon
22
Maplebear
CART
$10.8B
– –
-453,988
Closed -$20.5M
ESTC icon
23
Elastic
ESTC
$6.37B
– –
-184,355
Closed -$15.5M
IWM icon
24
PUT
iShares Russell 2000 ETF
IWM
$82.1B
– –
-300,000
Closed -$64.7M
MIR icon
25
Mirion Technologies
MIR
$3.9B
– –
-555,377
Closed -$12M
1
2

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Shannon River Fund Management's Q3 2025 Portfolio in Review

As of Q3 2025, Shannon River Fund Management held 29 positions worth $621M, down 17% from $752M the previous quarter. Its ten largest holdings account for 81% of the portfolio.

Shannon River Fund Management withdrew a net $228M in Q3 2025, closing 9 positions and reducing 10 holdings. Its most notable exit was Affirm, an estimated $24.7M position sold in full.

By sector, the portfolio is most concentrated in Technology at 94% of assets, up from 79% a quarter earlier, followed by Industrials and Consumer Staples.

Against the trend, Shannon River Fund Management opened a new position in FormFactor worth $35.3M.

  • Shannon River Fund Management's largest Q3 2025 buy was FormFactor: 968,161 shares worth $35.3M.
  • Shannon River Fund Management added most to JFrog in Q3 2025, an estimated $29.2M increase.
  • Shannon River Fund Management's biggest Q3 2025 reduction was Coherent, cutting an estimated $35.5M.
  • Shannon River Fund Management fully exited Affirm in Q3 2025, selling an estimated $24.7M.
  • Shannon River Fund Management's ten largest holdings make up 81% of its $621M portfolio in Q3 2025.
  • Shannon River Fund Management opened 5 new positions and closed 9 in Q3 2025.
  • Shannon River Fund Management's portfolio value fell 17% quarter-over-quarter to $621M.

Based on Shannon River Fund Management's 13F filing for Q3 2025, filed 13 Nov 2025.