Latest Shannon River Fund Management LLC Stock Portfolio
Shannon River Fund Management LLC Performance:
2025 Q3: 10.01%YTD: 8.98%2024: 32.02%
Performance for 2025 Q3 is 10.01%, and YTD is 8.98%, and 2024 is 32.02%.
About Shannon River Fund Management LLC and 13F Hedge Fund Stock Holdings
In it's latest 13F Holdings report, Shannon River Fund Management LLC reported an equity portfolio of $621.2 Millions as of 30 Sep, 2025.
The top stock holdings of Shannon River Fund Management LLC are PEGA, TSEM, IDCC. The fund has invested 12.8% of it's portfolio in PEGASYSTEMS INC and 11.2% of portfolio in TOWER SEMICONDUCTOR LTD.
The fund managers got completely rid off AFFIRM HLDGS INC (AFRM), MAPLEBEAR INC and ELASTIC N V (ESTC) stocks. They significantly reduced their stock positions in COHERENT CORP (COHR), PALANTIR TECHNOLOGIES INC (PLTR) and CREDO TECHNOLOGY GROUP HOLDI (CRDO). Shannon River Fund Management LLC opened new stock positions in FORMFACTOR INC (FORM), CLEAN HARBORS INC (CLH) and STRIDE INC (LRN). The fund showed a lot of confidence in some stocks as they added substantially to JFROG LTD (FROG), WIX.COM LTD and NCINO INC (NCNO).
The top stock holdings of Shannon River Fund Management LLC are PEGA, TSEM, IDCC. The fund has invested 12.8% of it's portfolio in PEGASYSTEMS INC and 11.2% of portfolio in TOWER SEMICONDUCTOR LTD.
The fund managers got completely rid off AFFIRM HLDGS INC (AFRM), MAPLEBEAR INC and ELASTIC N V (ESTC) stocks. They significantly reduced their stock positions in COHERENT CORP (COHR), PALANTIR TECHNOLOGIES INC (PLTR) and CREDO TECHNOLOGY GROUP HOLDI (CRDO). Shannon River Fund Management LLC opened new stock positions in FORMFACTOR INC (FORM), CLEAN HARBORS INC (CLH) and STRIDE INC (LRN). The fund showed a lot of confidence in some stocks as they added substantially to JFROG LTD (FROG), WIX.COM LTD and NCINO INC (NCNO).
Shannon River Fund Management LLC Annual Return Estimates Vs S&P 500
Our best estimate is that Shannon River Fund Management LLC made a return of 10.01% in the last quarter. In trailing 12 months, it's portfolio return was 27.18%.
New Buys
| Ticker | $ Bought |
|---|---|
| formfactor inc | 35,260,400 |
| clean harbors inc | 26,907,300 |
| stride inc | 12,351,300 |
| taiwan semiconductor mfg ltd | 2,430,100 |
| backblaze inc | 2,128,680 |
New stocks bought by Shannon River Fund Management LLC
Additions
| Ticker | % Inc. |
|---|---|
| jfrog ltd | 298 |
| wix.com ltd | 42.13 |
| ncino inc | 27.43 |
| clearwater analytics hldgs i | 1.56 |
| pegasystems inc | 0.85 |
Additions to existing portfolio by Shannon River Fund Management LLC
Reductions
| Ticker | % Reduced |
|---|---|
| coherent corp | -79.96 |
| palantir technologies inc | -58.62 |
| credo technology group holdi | -54.52 |
| marvell technology inc | -40.35 |
| flex ltd | -34.76 |
| tower semiconductor ltd | -34.44 |
| interdigital inc | -24.45 |
| guidewire software inc | -16.36 |
Shannon River Fund Management LLC reduced stake in above stock
Sold off
| Ticker | $ Sold |
|---|---|
| mirion technologies inc | -11,957,300 |
| maplebear inc | -20,538,400 |
| unity software inc | -9,813,920 |
| affirm hldgs inc | -24,652,800 |
| ncr atleos corporation | -8,769,150 |
| pagaya technologies ltd | -4,352,930 |
| elastic n v | -15,546,700 |
Shannon River Fund Management LLC got rid off the above stocks
Sector Distribution
Shannon River Fund Management LLC has about 62.7% of it's holdings in Technology sector.
| Sector | % |
|---|---|
| Technology | 62.7 |
| Others | 21 |
| Communication Services | 9.9 |
| Industrials | 4.3 |
| Consumer Defensive | 2 |
Market Cap. Distribution
Shannon River Fund Management LLC has about 27.6% of it's portfolio invested in the large-cap and mega-cap stocks.
| Category | % |
|---|---|
| MID-CAP | 51 |
| LARGE-CAP | 27.6 |
| UNALLOCATED | 21 |
Stocks belong to which Index?
About 19.6% of the stocks held by Shannon River Fund Management LLC either belong to S&P 500 or RUSSELL 2000 index.
| Index | % |
|---|---|
| Others | 80.4 |
| RUSSELL 2000 | 19.6 |
Shannon River Fund Management LLC Holdings Map
This heatmap illustrates the top 50 positions within the fund's portfolio.
Current Stock Holdings of Shannon River Fund Management LLC
Shannon River Fund Management LLC has 20 stocks in it's portfolio. About 80.9% of the portfolio is in top 10 stocks. CWAN proved to be the most loss making stock for the portfolio. IDCC was the most profitable stock for Shannon River Fund Management LLC last quarter.
Last Reported on: 13 Nov, 2025| Ticker | Namesorted ascending | % Portfolio | Shares Held | $ Value | Type | % Change | Options | |
|---|---|---|---|---|---|---|---|---|
| AFRM | affirm hldgs inc | 0.00 | 0.00 | 0.00 | sold off | -100 | ||
| BLZE | backblaze inc | 0.34 | 229,384 | 2,128,680 | new | |||
| CCCS | ccc intelligent solutions hl | 1.58 | 1,075,550 | 9,798,220 | reduced | -0.21 | ||
| CLH | clean harbors inc | 4.33 | 115,870 | 26,907,300 | new | |||
| COHR | coherent corp | 1.55 | 89,256 | 9,614,660 | reduced | -79.96 | ||
| CRDO | credo technology group holdi | 2.03 | 86,567 | 12,605,000 | reduced | -54.52 | ||
| CWAN | clearwater analytics hldgs i | 1.97 | 677,693 | 12,212,000 | added | 1.56 | ||
| DOCU | docusign inc | 3.29 | 283,515 | 20,438,600 | reduced | -13.01 | ||
| ESTC | elastic n v | 0.00 | 0.00 | 0.00 | sold off | -100 | ||
| FLEX | flex ltd | 7.93 | 849,416 | 49,240,600 | reduced | -34.76 | ||
| FORM | formfactor inc | 5.68 | 968,161 | 35,260,400 | new | |||
| FROG | jfrog ltd | 6.58 | 863,924 | 40,889,500 | added | 298 | ||
| GWRE | guidewire software inc | 4.66 | 126,057 | 28,975,500 | reduced | -16.36 | ||
| IDCC | interdigital inc | 9.93 | 178,720 | 61,699,500 | reduced | -24.45 | ||
| LRN | stride inc | 1.99 | 82,928 | 12,351,300 | new | |||
| MIR | mirion technologies inc | 0.00 | 0.00 | 0.00 | sold off | -100 | ||
| MRVL | marvell technology inc | 5.73 | 423,644 | 35,615,800 | reduced | -40.35 | ||
| NCNO | ncino inc | 6.89 | 1,578,900 | 42,803,900 | added | 27.43 | ||
| PEGA | pegasystems inc | 12.81 | 1,384,220 | 79,592,600 | added | 0.85 | ||
| PGY | pagaya technologies ltd | 0.00 | 0.00 | 0.00 | sold off | -100 | ||