Shannon River Fund Management LLC 13F holdings, Q2 2026
Holdings as of June 30, 2026 · filings on SEC EDGAR · this is the latest filing on record
Shannon River Fund Management LLC disclosed 37 US equity positions worth $1.1bn in its Q2 2026 13F filing. The largest position was TSEM at 8.9% of the reported book, followed by FLEX and AMD. Against the Q1 2026 filing, it opened 22 new positions, added to 11 and reduced 3 among the top 37 holdings.
What did Shannon River Fund Management LLC own in Q2 2026? Top 37 positions
| # | Stock | Sector | Weight | Value | Shares | Δ shares | vs Q1 2026 |
|---|---|---|---|---|---|---|---|
| 1 | TSEM TOWER SEMICONDUCTOR LTD | Technology | 8.9% | $99.8m | 382,933 | -24% | reduced |
| 2 | FLEX FLEX LTD | Technology | 5.5% | $61.6m | 379,834 | 22% | added |
| 3 | AMD ADVANCED MICRO DEVICES INC | Technology | 5.5% | $61.4m | 105,751 | – | new |
| 4 | IDCC INTERDIGITAL INC | Technology | 4.7% | $52.2m | 184,388 | 241% | added |
| 5 | CLS CELESTICA INC | Technology | 4.6% | $51.1m | 139,964 | 162% | added |
| 6 | COHR COHERENT CORP | Technology | 4.6% | $51.0m | 129,283 | 47% | added |
| 7 | HNGE HINGE HEALTH INC | Healthcare | 4.2% | $46.6m | 561,224 | 35% | added |
| 8 | EXTR EXTREME NETWORKS INC | Technology | 4.1% | $46.1m | 1,424,095 | 8% | added |
| 9 | KLIC KULICKE & SOFFA INDS INC | Technology | 4.0% | $44.8m | 334,781 | – | new |
| 10 | TWLO TWILIO INC | Technology | 3.7% | $41.5m | 201,352 | – | new |
| 11 | CIEN CIENA CORP | Technology | 3.6% | $39.9m | 81,298 | – | new |
| 12 | LYV LIVE NATION ENTERTAINMENT IN | Communication Services | 3.5% | $39.6m | 216,037 | -27% | reduced |
| 13 | RMBS RAMBUS INC DEL | Technology | 3.5% | $38.7m | 291,713 | -13% | reduced |
| 14 | QUANTINUUM INC | 3.4% | $38.4m | 469,355 | – | new | |
| 15 | UTI UNIVERSAL TECHNICAL INST INC | Consumer Defensive | 3.4% | $38.1m | 890,113 | – | new |
| 16 | ABNB AIRBNB INC | Consumer Cyclical | 3.2% | $35.5m | 247,836 | 0% | held |
| 17 | TTWO TAKE-TWO INTERACTIVE SOFTWAR | Communication Services | 3.1% | $34.5m | 138,029 | – | new |
| 18 | OUST OUSTER INC | Technology | 2.5% | $28.1m | 449,264 | – | new |
| 19 | PDFS PDF SOLUTIONS INC | Technology | 2.3% | $26.2m | 369,776 | – | new |
| 20 | NOK NOKIA CORP | Technology | 2.3% | $25.3m | 1,906,902 | – | new |
| 21 | ALNT ALLIENT INC | Technology | 2.0% | $22.7m | 220,237 | – | new |
| 22 | RKLB ROCKET LAB CORP | Industrials | 2.0% | $22.5m | 221,143 | – | new |
| 23 | FFIV F5 INC | Technology | 1.9% | $21.3m | 51,258 | 2% | added |
| 24 | DY DYCOM INDS INC | Industrials | 1.8% | $20.0m | 39,473 | – | new |
| 25 | CIFR CIPHER DIGITAL INC | Technology | 1.5% | $16.4m | 667,931 | – | new |
| 26 | LION LIONSGATE STUDIOS CORP | 1.4% | $16.1m | 1,050,445 | 1% | added | |
| 27 | DLR DIGITAL RLTY TR INC | Real Estate | 1.4% | $15.9m | 88,764 | 197% | added |
| 28 | GWRE GUIDEWIRE SOFTWARE INC | Technology | 1.2% | $13.9m | 113,230 | 80% | added |
| 29 | SPHR SPHERE ENTERTAINMENT CO | Communication Services | 1.1% | $12.8m | 73,878 | 1% | added |
| 30 | GLBE GLOBAL-E ONLINE LTD | Consumer Cyclical | 1.1% | $12.3m | 353,200 | – | new |
| 31 | AMPX AMPRIUS TECHNOLOGIES INC | Industrials | 1.0% | $11.6m | 838,887 | – | new |
| 32 | APLD APPLIED DIGITAL CORP | Technology | 0.9% | $9.9m | 265,474 | – | new |
| 33 | NET CLOUDFLARE INC | Technology | 0.5% | $5.8m | 23,589 | – | new |
| 34 | AMKR AMKOR TECHNOLOGY INC | Technology | 0.5% | $5.7m | 65,895 | – | new |
| 35 | MU MICRON TECHNOLOGY INC | Technology | 0.5% | $5.2m | 4,484 | – | new |
| 36 | BW BABCOCK & WILCOX ENTERPRISES | 0.4% | $4.7m | 333,153 | – | new | |
| 37 | MXL MAXLINEAR INC | Technology | 0.3% | $3.5m | 27,377 | – | new |
Weights are shares of the reported long US equity book (options excluded). Values are as filed, normalised to whole dollars. Share changes compare against the immediately preceding filing only.