Shannon River Fund Management LLC

13F Filings History

Latest 13F report
Q4 2024 - Feb 13, 2025
Value $
$501M
Signature - Title
Spencer M. Waxman - Managing Member
Location
New York, NY
Summary
This page shows a list of all the recent 13F filings made by Shannon River Fund Management LLC. Form 13F is required to be filed within 45 days of the end of a calendar quarter. Shannon River Fund Management LLC reported 17 stock holdings with total value $501M as of Q4 2024. Top holdings included PEGA, IDCC, MRVL, TSEM, and CWAN.
Holdings Value
Quarter Holdings Value $ Bought Sold Net Top Holdings Form Type Date Filed
Q4 2024 17 $501M +$59.4M -$315M -$255M PEGA, IDCC, MRVL, TSEM, CWAN 13F-HR 2/13/2025, 04:50 PM
Q3 2024 18 $662M +$176M -$146M +$30.6M IDCC, CWAN, TSEM, PEGA, MRVL 13F-HR 11/13/2024, 01:36 PM
Q2 2024 21 $580M +$237M -$86.1M +$151M TSEM, CGNX, IDCC, NVDA, WIX 13F-HR 8/13/2024, 02:48 PM
Q1 2024 18 $449M +$174M -$118M +$56.6M TSEM, WIX, CGNX, NVDA, IDCC 13F-HR 5/14/2024, 01:36 PM
Q4 2023 23 $547M +$94.5M -$150M -$55.7M WIX, IDCC, TSEM, CLS, FLEX 13F-HR 2/13/2024, 09:29 AM
Q3 2023 23 $503M +$290M -$168M +$122M QQQ, IDCC, CLS, FLEX, GDDY 13F-HR 11/13/2023, 05:01 PM
Q2 2023 15 $401M +$95.3M -$118M -$23.1M IDCC, FLEX, NICE, GDDY, AMD 13F-HR 8/11/2023, 01:59 PM
Q1 2023 21 $443M +$211M -$72.7M +$139M FLEX, IDCC, NICE, NVDA, ATVI 13F-HR 5/12/2023, 10:20 AM
Q4 2022 25 $408M +$264M -$44.1M +$220M QQQ, FLEX, DT, MANH, IDCC 13F-HR 2/13/2023, 09:03 AM
Q3 2022 23 $232M +$53.3M -$70.7M -$17.4M FLEX, NICE, CRM, RMBS, MANH 13F-HR 11/14/2022, 08:10 AM
Q2 2022 26 $350M +$36.9M -$94.9M -$58M FLEX, MANH, DT, NICE, AYX 13F-HR 8/15/2022, 11:06 AM
Q1 2022 38 $898M +$331M -$278M +$52.7M QQQ, FLEX, MANH, DT, NYT Restatement 7/20/2022, 05:21 PM
Q4 2021 37 $982M +$191M -$147M +$43.9M DT, FLEX, GDDY, KNBE, WMG 13F-HR 2/14/2022, 09:35 AM
Q3 2021 55 $1.14B +$279M -$432M -$153M DT, FLEX, WMG, SPT, ZI 13F-HR 11/15/2021, 11:26 AM
Q2 2021 47 $1.24B +$382M -$346M +$36.2M DT, GDDY, FLEX, ADSK, SPT Restatement 8/16/2021, 03:51 PM
Q1 2021 45 $1.1B +$278M -$219M +$59.1M DT, ADSK, NYT, IDCC, GDDY 13F-HR 5/17/2021, 10:07 AM
Q4 2020 37 $1.05B +$357M -$97M +$260M FLEX, DT, NYT, IDCC, WMG 13F-HR 2/16/2021, 08:12 AM
Q3 2020 32 $831M +$280M -$90.2M +$190M DT, NYT, IDCC, SAIL, GDDY 13F-HR 11/16/2020, 08:54 AM
Q2 2020 33 $764M +$304M -$77.8M +$226M NYT, IDCC, DT, ADSK, SAIL 13F-HR 8/14/2020, 09:16 AM
Q1 2020 25 $591M +$296M -$109M +$187M NYT, MSFT, IDCC, NYT, FLEX 13F-HR 5/15/2020, 10:08 AM
Q4 2019 27 $749M +$287M -$35.6M +$252M IWM, QQQ, NYT, FLEX, NICE 13F-HR 2/14/2020, 10:18 AM
Q3 2019 24 $576M +$161M -$69M +$92.5M IWM, SMH, GWRE, NYT, FLEX Restatement 2/14/2020, 10:16 AM
Q2 2019 31 $629M +$277M -$99.6M +$177M IWM, NYT, SMH, GWRE, QQQ Restatement 2/14/2020, 10:14 AM
Q1 2019 30 $573M +$292M -$40.4M +$251M QQQ, QCOM, NYT, GWRE, ADSK 13F-HR 5/15/2019, 06:01 AM
Q4 2018 28 $352M +$136M -$25.1M +$111M SEND, NYT, PTC, ADSK, ATVI 13F-HR 2/14/2019, 10:31 AM
Q3 2018 23 $627M +$120M -$76.2M +$43.5M IWM, NYT, ADSK, YEXT, PTC 13F-HR 11/14/2018, 09:35 AM
Q2 2018 33 $760M +$503M -$29M +$474M IWM, QQQ, NYT, EPAY, YEXT 13F-HR 8/14/2018, 10:47 AM
Q1 2018 31 $399M +$195M -$27M +$168M QQQXXXX, MULE, EBAY, EPAY, YEXT 13F-HR 5/15/2018, 10:18 AM
Q4 2017 30 $417M +$223M -$61.9M +$161M IWM, EPAY, EBAY, MRVLXXXX, IGT 13F-HR 2/14/2018, 10:05 AM
Q3 2017 30 $306M +$58.9M -$81.1M -$22.2M EPAY, EBAY, IACXXXX, BL, XPERXXXX 13F-HR 11/14/2017, 11:24 AM
Q2 2017 31 $340M +$152M -$50.6M +$101M NUAN, BL, EBAY, MRVLXXXX, IGT 13F-HR 8/14/2017, 02:52 PM
Q1 2017 28 $290M +$122M -$85.7M +$36M NUAN, LGFB, MRVLXXXX, RP, ATVI 13F-HR 5/15/2017, 12:38 PM
Q4 2016 35 $321M +$120M -$48.2M +$72M MRVLXXXX, IACXXXX, TTWO, RP, IMMR 13F-HR 2/14/2017, 10:36 AM
Q3 2016 29 $359M +$132M -$70.9M +$61M WBMD, TTWO, MRVLXXXX, TSRAXXXX, SONY 13F-HR 11/14/2016, 10:37 AM
Q2 2016 33 $400M +$149M -$78.3M +$70.8M IACXXXX, TTWO, MLNX, STMP, ATVI 13F-HR 8/15/2016, 12:06 PM
Q1 2016 30 $393M +$97.3M -$126M -$28.5M FIT, IDCC, TTWO, MLNX, HIMX 13F-HR 5/16/2016, 02:41 PM
Q4 2015 30 $516M +$147M -$115M +$32.3M GOOGL, TTWO, IDCC, STMP, QCOM 13F-HR 2/16/2016, 02:26 PM
Q3 2015 31 $538M +$58.5M -$92M -$33.5M WBMD, IDCC, LORL, IACXXXX, TSRAXXXX 13F-HR 11/16/2015, 12:54 PM
Q2 2015 37 $1.02B +$425M -$72.8M +$352M IWM, WBMD, LORL, IDCC, EXPE 13F-HR 8/14/2015, 11:42 AM
Q1 2015 41 $871M +$256M -$189M +$67.7M WBMD, LORL, ATVI, NEWM, EXPE 13F-HR 5/14/2015, 11:59 AM
Q4 2014 39 $984M +$173M -$235M -$62.1M LORL, WBMD, GOOGLXXXX, IACXXXX, TTWO 13F-HR 2/17/2015, 09:05 AM
Q3 2014 48 $1.32B +$432M -$131M +$301M IACXXXX, AAPL, WBMD, META, EXPE 13F-HR 11/14/2014, 10:17 AM
Q2 2014 59 $1.93B +$735M -$413M +$322M SPY, EEM, WBMD, IACXXXX, ATVI 13F-HR 8/14/2014, 10:54 AM
Q1 2014 56 $1.57B +$604M -$106M +$498M EEM, WBMD, BRCM, CMCSA, IACXXXX 13F-HR 5/15/2014, 03:53 PM
Q4 2013 56 $1.34B AMT, META, CMCSA, DGI, BRCM 13F-HR 2/13/2014, 03:07 PM