# Shannon River Fund Management LLC

> Institutional holdings reported to the SEC as of Q2 2026 on Form 13F. CIK 1301050. Source: https://holderbook.com/funds/1301050-shannon-river-fund-management-llc/

- Reported value: $1.1B
- Positions: 37
- Weight of the ten largest: 49.6%
- Filed: 2026-08-13

A 13F reports long US equity positions only. Short positions, bonds, foreign listings, private holdings and cash are not visible, so this is not the manager's whole book.

## Holdings

| Security | Ticker | Value | Shares | Weight | Quarters held |
|---|---|---|---|---|---|
| TOWER SEMICONDUCTOR LTD | [TSEM](https://holderbook.com/stocks/TSEM/) | $99.8M | 382,933 | 8.9% | 11 |
| FLEX LTD | [FLEX](https://holderbook.com/stocks/FLEX/) | $61.6M | 379,834 | 5.5% | 28 |
| ADVANCED MICRO DEVICES INC | [AMD](https://holderbook.com/stocks/AMD/) | $61.4M | 105,751 | 5.5% | 1 |
| INTERDIGITAL INC | [IDCC](https://holderbook.com/stocks/IDCC/) | $52.2M | 184,388 | 4.7% | 15 |
| CELESTICA INC | [CLS](https://holderbook.com/stocks/CLS/) | $51.1M | 139,964 | 4.6% | 3 |
| COHERENT CORP | [COHR](https://holderbook.com/stocks/COHR/) | $51.0M | 129,283 | 4.6% | 5 |
| HINGE HEALTH INC | [HNGE](https://holderbook.com/stocks/HNGE/) | $46.6M | 561,224 | 4.2% | 3 |
| EXTREME NETWORKS INC | [EXTR](https://holderbook.com/stocks/EXTR/) | $46.1M | 1,424,095 | 4.1% | 3 |
| KULICKE & SOFFA INDS INC | [KLIC](https://holderbook.com/stocks/KLIC/) | $44.8M | 334,781 | 4.0% | 1 |
| TWILIO INC | [TWLO](https://holderbook.com/stocks/TWLO/) | $41.5M | 201,352 | 3.7% | 1 |
| CIENA CORP | [CIEN](https://holderbook.com/stocks/CIEN/) | $39.9M | 81,298 | 3.6% | 1 |
| LIVE NATION ENTERTAINMENT IN | [LYV](https://holderbook.com/stocks/LYV/) | $39.6M | 216,037 | 3.5% | 3 |
| RAMBUS INC DEL | [RMBS](https://holderbook.com/stocks/RMBS/) | $38.7M | 291,713 | 3.5% | 2 |
| QUANTINUUM INC | [QNT](https://holderbook.com/stocks/QNT/) | $38.4M | 469,355 | 3.4% | 1 |
| UNIVERSAL TECHNICAL INST INC | [UTI](https://holderbook.com/stocks/UTI/) | $38.1M | 890,113 | 3.4% | 1 |
| AIRBNB INC | [ABNB](https://holderbook.com/stocks/ABNB/) | $35.5M | 247,836 | 3.2% | 2 |
| TAKE-TWO INTERACTIVE SOFTWAR | [TTWO](https://holderbook.com/stocks/TTWO/) | $34.5M | 138,029 | 3.1% | 1 |
| OUSTER INC | [OUST](https://holderbook.com/stocks/OUST/) | $28.1M | 449,264 | 2.5% | 1 |
| PDF SOLUTIONS INC | [PDFS](https://holderbook.com/stocks/PDFS/) | $26.2M | 369,776 | 2.3% | 1 |
| NOKIA CORP | [NOK](https://holderbook.com/stocks/NOK/) | $25.3M | 1,906,902 | 2.3% | 1 |
| ALLIENT INC | [ALNT](https://holderbook.com/stocks/ALNT/) | $22.7M | 220,237 | 2.0% | 1 |
| ROCKET LAB CORP | [RKLB](https://holderbook.com/stocks/RKLB/) | $22.5M | 221,143 | 2.0% | 1 |
| F5 INC | [FFIV](https://holderbook.com/stocks/FFIV/) | $21.3M | 51,258 | 1.9% | 2 |
| DYCOM INDS INC | [DY](https://holderbook.com/stocks/DY/) | $20.0M | 39,473 | 1.8% | 1 |
| CIPHER DIGITAL INC | [CIFR](https://holderbook.com/stocks/CIFR/) | $16.4M | 667,931 | 1.5% | 1 |
| LIONSGATE STUDIOS CORP | [LION](https://holderbook.com/stocks/LION/) | $16.1M | 1,050,445 | 1.4% | 2 |
| DIGITAL RLTY TR INC | [DLR](https://holderbook.com/stocks/DLR/) | $15.9M | 88,764 | 1.4% | 2 |
| GUIDEWIRE SOFTWARE INC | [GWRE](https://holderbook.com/stocks/GWRE/) | $13.9M | 113,230 | 1.2% | 10 |
| SPHERE ENTERTAINMENT CO | [SPHR](https://holderbook.com/stocks/SPHR/) | $12.8M | 73,878 | 1.1% | 2 |
| GLOBAL E ONLINE LTD | [GLBE](https://holderbook.com/stocks/GLBE/) | $12.3M | 353,200 | 1.1% | 1 |
| AMPRIUS TECHNOLOGIES INC | [AMPX](https://holderbook.com/stocks/AMPX/) | $11.6M | 838,887 | 1.0% | 1 |
| APPLIED DIGITAL CORP | [APLD](https://holderbook.com/stocks/APLD/) | $9.9M | 265,474 | 0.9% | 1 |
| CLOUDFLARE INC | [NET](https://holderbook.com/stocks/NET/) | $5.8M | 23,589 | 0.5% | 1 |
| AMKOR TECHNOLOGY INC | [AMKR](https://holderbook.com/stocks/AMKR/) | $5.7M | 65,895 | 0.5% | 1 |
| MICRON TECHNOLOGY INC | [MU](https://holderbook.com/stocks/MU/) | $5.2M | 4,484 | 0.5% | 1 |
| BABCOCK & WILCOX ENTERPRISES | [BW](https://holderbook.com/stocks/BW/) | $4.7M | 333,153 | 0.4% | 1 |
| MAXLINEAR INC | [MXL](https://holderbook.com/stocks/MXL/) | $3.5M | 27,377 | 0.3% | 1 |

## What the disclosed book did

Not the fund's return. This is the change in value of the positions disclosed on Form 13F, had they been left untouched, against SPY over the same quarter ends.

| Quarter | Book | Market | Difference | Priced |
|---|---|---|---|---|
| Q2 2026 | +62.7% | +14.8% | +47.8% | 100% |
| Q1 2026 | -8.3% | -4.6% | -3.7% | 100% |
| Q4 2025 | +7.5% | +2.4% | +5.1% | 100% |
| Q3 2025 | +19.1% | +7.8% | +11.3% | 94% |
| Q2 2025 | +20.1% | +10.5% | +9.6% | 100% |
| Q1 2025 | -18.3% | -4.6% | -13.8% | 85% |
| Q4 2024 | +19.0% | +2.1% | +16.8% | 98% |
| Q3 2024 | +8.9% | +5.4% | +3.5% | 102% |

## Quarter by quarter

| Quarter | Value | Positions |
|---|---|---|
| Q2 2026 | $1.1B | 37 |
| Q1 2026 | $524.1M | 28 |
| Q4 2025 | $637.5M | 26 |
| Q3 2025 | $621.2M | 20 |
| Q2 2025 | $752.0M | 23 |
| Q1 2025 | $383.2M | 14 |
| Q4 2024 | $677.6M | 18 |
| Q3 2024 | $714.7M | 19 |
| Q2 2024 | $620.5M | 22 |
| Q1 2024 | $449.1M | 18 |
| Q4 2023 | $547.3M | 20 |
| Q3 2023 | $503.1M | 16 |