SEC 13F Intelligence

Managers / Q4 2023 · view latest →

Shannon River Fund Management LLC

CIK 0001301050 · 850 THIRD AVENUE, 13TH FLOOR, NEW YORK, NY, 10022 · 212 331 6750

Reported Value
$547M
Q4 2023
Positions
24
Filings on Record
34
2019–present window
Filed
Feb 13, 2024
original filing

Summary

Shannon River Fund Management LLC reported $547M in U.S.-listed holdings across 24 positions for Q4 2023.

Its largest position, Wix Com, represents 10.5% of the portfolio.

Compared with Q3 2023, the fund opened 8 new positions and exited 4.

Portfolio Metrics

Turnover
+42.9%
vs prior filed quarter
Top-10 Concentration
+56.8%
share of reported value
Largest Position
+10.5%
Wix Com
New / Exited
8 / 4
positions this quarter

Methodology: turnover is min(value bought, value sold) ÷ average reported value across the two quarters — value-based, so market moves inflate it slightly versus a share-based measure. Concentration and largest position are shares of the filing’s total reported value, options excluded. New/exited counts compare against the prior filed quarter. All figures derive solely from the fund’s 13F filings.

Reported Value by Quarter

13F Reported Value
Q4 ’18: $352MQ4 ’18Q1 ’19: $573MQ2 ’19: $629MQ3 ’19: $576MQ4 ’19: $749MQ4 ’19Q1 ’20: $592MQ2 ’20: $764MQ3 ’20: $832MQ4 ’20: $1.1BQ4 ’20Q1 ’21: $1.5BQ2 ’21: $1.4BQ3 ’21: $1.4BQ4 ’21: $986MQ4 ’21Q1 ’22: $901MQ2 ’22: $352MQ3 ’22: $233MQ4 ’22: $408MQ4 ’22Q1 ’23: $443MQ2 ’23: $401MQ3 ’23: $503MQ4 ’23: $547MQ4 ’23Q1 ’24: $449MQ2 ’24: $620MQ3 ’24: $715MQ4 ’24: $678MQ4 ’24Q1 ’25: $383MQ2 ’25: $752MQ3 ’25: $621MQ4 ’25: $638MQ4 ’25Q1 ’26: $524Mfilingsflow.com

Portfolio Composition

By security type
Common Stock: 53.7%Other: 29.4%ETP: 16.9%
  • Common Stock · 53.7% · $294M
  • Other · 29.4% · $161M
  • ETP · 16.9% · $93M

Quarter-over-Quarter Changes full breakdown →

vs Q3 2023 (amended baseline)

IssuerMoveShare ΔShares nowValue ΔValue now
ISHARES TRNEW+200.0K200.0K+$40M$40M
TOWER SEMICONDUCTOR LTDNEW+1.26M1.26M+$39M$39M
VANECK ETF TRUSTNEW+160.0K160.0K+$28M$28M
VSTSVESTIS CORPORATIONNEW+662.2K662.2K+$14M$14M
TALKTALKSPACE INCNEW+5.00M5.00M+$13M$13M
ZGZILLOW GROUP INCNEW+77.3K77.3K+$4M$4M
PTCPTC INCNEW+19.2K19.2K+$3M$3M
GLOBAL E ONLINE LTDNEW+31.1K31.1K+$1M$1M

Value changes conflate price moves with buying and selling — share changes are the real signal. Share counts are not split-adjusted.

Holdings — Q4 2023

17 positions
Export to Excel
#IssuerClass% PortfolioValue ↓Shares
1WIX COM LTDSHS10.51%$58M467.5K
2IDIINTERDIGITAL INChistory →COM9.38%$51M472.8K
3TOWER SEMICONDUCTOR LTDSHS NEW7.04%$39M1.26M
4CLSEURCELESTICA INChistory →SUB VTG SHS6.74%$37M1.26M
5FLEX LTDORD6.19%$34M1.11M
6INFA1EURINFORMATICA CORPhistory →COM CL A4.64%$25M894.9K
7NVDANVIDIA CORPhistory →COM3.68%$20M40.7K
8DTDYNATRACE INChistory →COM NEW3.07%$17M306.8K
9SPTSPROUT SOCIAL INChistory →COM CL A3.04%$17M270.8K
10VSTSVESTIS CORPORATIONhistory →COM SHS2.56%$14M662.2K
11GDDYGODADDY INChistory →CL A2.34%$13M120.8K
12TALKTALKSPACE INChistory →COM2.32%$13M5.00M
13CLEARWATER ANALYTICS HLDGS ICL A2.08%$11M567.9K
14AMDADVANCED MICRO DEVICES INCCOM0.81%$4M30.0K
15ZGZILLOW GROUP INCCL A0.80%$4M77.3K
16PTCPTC INCCOM0.61%$3M19.2K
17GLOBAL E ONLINE LTDSHS0.23%$1M31.1K

Filing History

QuarterReported ValuePositionsFiledTypeLinks
Q1 2026$524M28May 14, 202613F-HRchanges · EDGAR ↗
Q4 2025$638M26Feb 17, 202613F-HRchanges · EDGAR ↗
Q3 2025$621M20Nov 13, 202513F-HRchanges · EDGAR ↗
Q2 2025$752M24Aug 13, 202513F-HRchanges · EDGAR ↗
Q1 2025$383M14May 14, 202513F-HRchanges · EDGAR ↗
Q4 2024$678M19Feb 13, 202513F-HRchanges · EDGAR ↗
Q3 2024$715M19Nov 13, 202413F-HRchanges · EDGAR ↗
Q2 2024$620M22Aug 13, 202413F-HRchanges · EDGAR ↗
Q1 2024$449M18May 14, 202413F-HRchanges · EDGAR ↗
Q4 2023$547M24Feb 13, 202413F-HRchanges · EDGAR ↗
Q3 2023$503M16Nov 13, 202313F-HRchanges · EDGAR ↗
Q2 2023$401M15Aug 11, 202313F-HRchanges · EDGAR ↗
Q1 2023$443M27May 12, 202313F-HRchanges · EDGAR ↗
Q4 2022$408M30Feb 13, 202313F-HRchanges · EDGAR ↗
Q3 2022$233M30Nov 14, 202213F-HRchanges · EDGAR ↗
Q2 2022$352M35Aug 15, 202213F-HRchanges · EDGAR ↗
Q1 2022$901M48May 16, 202213F-HRchanges · EDGAR ↗
Q4 2021$986M45Feb 14, 202213F-HRchanges · EDGAR ↗
Q3 2021$1.4B57Nov 15, 202113F-HRchanges · EDGAR ↗
Q2 2021$1.4B57Aug 16, 2021RESTATEMENTchanges · EDGAR ↗
Q1 2021$1.5B57May 17, 202113F-HRchanges · EDGAR ↗
Q4 2020$1.1B46Feb 16, 202113F-HRchanges · EDGAR ↗
Q3 2020$832M33Nov 16, 202013F-HRchanges · EDGAR ↗
Q2 2020$764M33Aug 14, 202013F-HRchanges · EDGAR ↗
Q1 2020$592M26May 15, 202013F-HRchanges · EDGAR ↗
Q4 2019$749M27Feb 14, 202013F-HRchanges · EDGAR ↗
Q3 2019$576M24Nov 14, 201913F-HRchanges · EDGAR ↗
Q2 2019$629M31Aug 14, 201913F-HRchanges · EDGAR ↗
Q1 2019$573M30May 15, 201913F-HRchanges · EDGAR ↗
Q4 2018$352M28Feb 14, 201913F-HRchanges · EDGAR ↗

13F filings are due up to 45 days after quarter end, so holdings shown here lag the fund’s current book. Source: original SEC filing on EDGAR ↗.