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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
+10.64%
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
$524M
AUM Growth
-$113M
Cap. Flow
-$134M
Cap. Flow %
-25.57%
Top 10 Hldgs %
66.74%
Holding
39
New
13
Increased
7
Reduced
8
Closed
11

Top Buys

Rank Stock Value
1
RMBS icon
Rambus
RMBS
+$33.3M
2
ABNB icon
Airbnb
ABNB
+$32.1M
3
TOST icon
Toast
TOST
+$21.8M
4
MRVL icon
Marvell Technology
MRVL
+$15.6M
5
FFIV icon
F5
FFIV
+$13.9M

Top Sells

Rank Stock Value
1
PEGA icon
Pegasystems
PEGA
+$62M
2
U icon
Unity
U
+$47.1M
3
CWAN
Clearwater Analytics
CWAN
+$29.8M
4
NCNO icon
nCino
NCNO
+$29.1M
5
KVYO icon
Klaviyo
KVYO
+$23.7M

Sector Composition

Rank Sector Weight
1 Technology 66.53%
2 Communication Services 13.21%
3 Industrials 7.48%
4 Consumer Discretionary 5.95%
5 Healthcare 3.07%

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Shannon River Fund Management's Q1 2026 Portfolio in Review

As of Q1 2026, Shannon River Fund Management held 39 positions worth $524M, down 18% from $638M the previous quarter. Its ten largest holdings account for 67% of the portfolio.

Shannon River Fund Management withdrew a net $134M in Q1 2026, closing 11 positions and reducing 8 holdings. Its most notable exit was Pegasystems, an estimated $62M position sold in full.

By sector, the portfolio is most concentrated in Technology at 67% of assets, down from 88% a quarter earlier, followed by Communication Services and Industrials.

Against the trend, Shannon River Fund Management opened a new position in Rambus worth $28.7M.

  • Shannon River Fund Management's largest Q1 2026 buy was Rambus: 333,817 shares worth $28.7M.
  • Shannon River Fund Management added most to Marvell Technology in Q1 2026, an estimated $15.6M increase.
  • Shannon River Fund Management's biggest Q1 2026 reduction was Coherent, cutting an estimated $18.3M.
  • Shannon River Fund Management fully exited Pegasystems in Q1 2026, selling an estimated $62M.
  • Shannon River Fund Management's ten largest holdings make up 67% of its $524M portfolio in Q1 2026.
  • Shannon River Fund Management opened 13 new positions and closed 11 in Q1 2026.
  • Shannon River Fund Management's portfolio value fell 18% quarter-over-quarter to $524M.

Based on Shannon River Fund Management's 13F filing for Q1 2026, filed 14 May 2026.