Shannon River Fund Management LLC
13F Reported Value
ⓘ$1.1B
Holdings
37
Latest Filing
2026-06-30
Filing Quarter
Q2 2026
Portfolio Overview
Shannon River Fund Management LLC disclosed 37 positions worth $1.1B in its Form 13F-HR for Q2 2026, led by $TSEM (TOWER SEMICONDUCTOR LTD) at 8.9% of the equity portfolio, followed by $FLEX and $AMD. During the quarter the fund opened 22 new positions and exited 13 — including a new stake in $AMD and a full exit from $MRVL. The portfolio is most concentrated in Technology (80.9% of disclosed assets). All figures are sourced directly from Shannon River Fund Management LLC’s Form 13F-HR filing with the SEC under CIK 1301050.
AI Fund Analysis
DiversifyingSector Allocation
AUM History
Top Equity Holdings by Value
Quarterly Activity — Q2 2026
Click any card to unlockTop Holdings
- —
Quality
$99.8M382,933 sh - —
Quality
$61.6M379,834 sh - 79.8#32
Quality
$61.4M105,751 sh - 65.0
Quality
$52.2M184,388 sh - 69.8
Quality
$51.1M139,964 sh - 58.5
Quality
$51.0M129,283 sh - 74.9
Quality
$46.6M561,224 sh - 54.0
Quality
$46.1M1,424,095 sh - 57.2
Quality
$44.8M334,781 sh - 70.4
Quality
$41.5M201,352 sh
| Company | Quality | Value | Shares |
|---|---|---|---|
 TOWER SEMICONDUCTOR LTD$TSEM | — | $99.8M | 382,933 |
 FLEX LTD.$FLEX | — | $61.6M | 379,834 |
 ADVANCED MICRO DEVICES INC$AMD | 79.8#32 | $61.4M | 105,751 |
 InterDigital, Inc.$IDCC | 65.0 | $52.2M | 184,388 |
 CELESTICA INC$CLS | 69.8 | $51.1M | 139,964 |
 COHERENT CORP.$COHR | 58.5 | $51.0M | 129,283 |
 Hinge Health, Inc.$HNGE | 74.9 | $46.6M | 561,224 |
 EXTREME NETWORKS INC$EXTR | 54.0 | $46.1M | 1,424,095 |
 KULICKE & SOFFA INDUSTRIES INC$KLIC | 57.2 | $44.8M | 334,781 |
 TWILIO INC$TWLO | 70.4 | $41.5M | 201,352 |
Unlock AI quality scores for every holding
32-signal composite ranking on each of Shannon River Fund Management LLC's 37 positions.
Showing top 10 of 37 holdings.
Sector Allocation
Technology
$906.4M
Communication Services
$68.4M
Industrials
$55.3M
Consumer Discretionary
$38.1M
Energy
$20.0M
Financials
$16.4M
Real Estate
$15.9M
Full Holdings — Shannon River Fund Management LLC (Q2 2026)
All 37 disclosed positions from the latest Form 13F-HR, with quarter-over-quarter share changes and 13F Pro quality scores. Sourced from SEC EDGAR.
| # | Ticker | Company | Value | Weight | QoQ | Quality |
|---|---|---|---|---|---|---|
| 1 | $TSEM | TOWER SEMICONDUCTOR LTD | $99.8M | 8.9% | -24% | — |
| 2 | $FLEX | FLEX LTD. | $61.6M | 5.5% | +22% | — |
| 3 | $AMD | ADVANCED MICRO DEVICES INC | $61.4M | 5.5% | NEW | 79.8 |
| 4 | $IDCC | InterDigital, Inc. | $52.2M | 4.7% | +241% | 65 |
| 5 | $CLS | CELESTICA INC | $51.1M | 4.6% | +162% | 69.8 |
| 6 | $COHR | COHERENT CORP. | $51.0M | 4.5% | +47% | 58.5 |
| 7 | $HNGE | Hinge Health, Inc. | $46.6M | 4.2% | +35% | 74.9 |
| 8 | $EXTR | EXTREME NETWORKS INC | $46.1M | 4.1% | +8% | 54 |
| 9 | $KLIC | KULICKE & SOFFA INDUSTRIES INC | $44.8M | 4.0% | NEW | 57.2 |
| 10 | $TWLO | TWILIO INC | $41.5M | 3.7% | NEW | 70.4 |
| 11 |  $CIEN | CIENA CORP | $39.9M | 3.6% | NEW | 72.9 |
| 12 |  $LYV | Live Nation Entertainment, Inc. | $39.6M | 3.5% | -27% | 52.9 |
| 13 |  $RMBS | RAMBUS INC | $38.7M | 3.5% | -13% | 70.2 |
| 14 |  $QNT | Quantinuum Inc. | $38.4M | 3.4% | NEW | — |
| 15 |  $UTI | UNIVERSAL TECHNICAL INSTITUTE INC | $38.1M | 3.4% | NEW | 53.3 |
| 16 |  $ABNB | Airbnb, Inc. | $35.5M | 3.2% | +0% | 71 |
| 17 |  $TTWO | TAKE TWO INTERACTIVE SOFTWARE INC | $34.5M | 3.1% | NEW | 55.6 |
| 18 |  $OUST | Ouster, Inc. | $28.1M | 2.5% | NEW | 36.2 |
| 19 |  $PDFS | PDF SOLUTIONS INC | $26.2M | 2.3% | NEW | 56.5 |
| 20 |  $NOK | NOKIA CORP | $25.3M | 2.3% | NEW | — |
| 21 |  $ALNT | ALLIENT INC | $22.7M | 2.0% | NEW | 47.4 |
| 22 |  $RKLB | Rocket Lab Corp | $22.5M | 2.0% | NEW | 39.9 |
| 23 |  $FFIV | F5, INC. | $21.3M | 1.9% | +2% | 66.9 |
| 24 |  $DY | DYCOM INDUSTRIES INC | $20.0M | 1.8% | NEW | 56.3 |
| 25 |  $CIFR | Cipher Digital Inc. | $16.4M | 1.5% | NEW | 30.6 |
| 26 |  $LION | Lionsgate Studios Corp. | $16.1M | 1.4% | +1% | 43.4 |
| 27 |  $DLR | DIGITAL REALTY TRUST, INC. | $15.9M | 1.4% | +197% | 72.8 |
| 28 |  $GWRE | Guidewire Software, Inc. | $13.9M | 1.2% | +80% | 67.3 |
| 29 |  $SPHR | Sphere Entertainment Co. | $12.8M | 1.1% | +1% | 53.7 |
| 30 |  $GLBE | Global-E Online Ltd. | $12.3M | 1.1% | NEW | — |
| 31 |  $AMPX | Amprius Technologies, Inc. | $11.6M | 1.0% | NEW | 34.4 |
| 32 |  $APLD | Applied Digital Corp. | $9.9M | 0.9% | NEW | 35.8 |
| 33 |  $NET | Cloudflare, Inc. | $5.8M | 0.5% | NEW | 56.4 |
| 34 |  $AMKR | AMKOR TECHNOLOGY, INC. | $5.7M | 0.5% | NEW | 57.5 |
| 35 |  $MU | MICRON TECHNOLOGY INC | $5.2M | 0.5% | NEW | 86.2 |
| 36 |  $BW | Babcock & Wilcox Enterprises, Inc. | $4.7M | 0.4% | NEW | 47 |
| 37 |  $MXL | MAXLINEAR, INC | $3.5M | 0.3% | NEW | 33.1 |
New Positions (22)
$AMD ADVANCED MICRO DEVICES INC$61.4M$KLIC KULICKE & SOFFA INDUSTRIES INC$44.8M$TWLO TWILIO INC$41.5M$CIEN CIENA CORP$39.9M$QNT Quantinuum Inc.$38.4M$UTI UNIVERSAL TECHNICAL INSTITUTE INC$38.1M$TTWO TAKE TWO INTERACTIVE SOFTWARE INC$34.5M$OUST Ouster, Inc.$28.1M$PDFS PDF SOLUTIONS INC$26.2M$NOK NOKIA CORP$25.3M$ALNT ALLIENT INC$22.7M$RKLB Rocket Lab Corp$22.5M$DY DYCOM INDUSTRIES INC$20.0M$CIFR Cipher Digital Inc.$16.4M$GLBE Global-E Online Ltd.$12.3MExited Positions (13)
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