SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC
Long book
$2.16B
Q1 2026
Positions
66
Top-10 weight
43%
concentration
Last quarter
+38.4%
SPY +14.8%
Turnover
53%
of book per quarter
Strategy in plain words
auto-generated from filingsSUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC is a diversified fundamental manager, running a $2.16B US long book across 66 positions.
The portfolio is moderately concentrated (top 10 ≈ 43% of the book). Turnover is high — positions rotate quickly, so individual names matter less than the process. Current anchor positions: TOWER SEMICONDUCTOR LTD, SANDISK CORP, INSMED INC, IONIS PHARMACEUTICALS INC, SOLARIS ENERGY INFRASTRUCTUR.
Over the last 9 quarters its long book ran on average 7.6pp per quarter ahead of the S&P 500, beating the index in 8 of 9 quarters. We rate its filings as signal-bearing: position changes reflect genuine views.
Implied long-book return vs S&P 500
methodology: positions priced quarterly, no shorts/options Fund long book S&P 500
Q1 2024
+6.7%
Q2 2024
+7.5%
Q3 2024
+17.6%
Q4 2024
-16.7%
Q1 2025
+27.9%
Q2 2025
+12.9%
Q3 2025
+11.3%
Q4 2025
+2.6%
Q1 2026
+38.4%
Sector allocation
Technology 43%
Healthcare 27%
Industrials 13%
Services media 5%
Utilities 4%
Consumer discretionary 2%
Communications 2%
Real estate 2%
Long book by quarter
What does SUMMIT PARTNERS own?
Q1 2026 13F| Company | Sector | Shares | Value | % of book | Change |
|---|---|---|---|---|---|
| TSEM TOWER SEMICONDUCTOR LTD | Technology | 692.1K | $121.4M | 5.6% | -28.1% |
| SNDK SANDISK CORP | Technology | 185.5K | $117.8M | 5.5% | -74.9% |
| INSM INSMED INC | Healthcare | 653.4K | $106.9M | 4.9% | -28.1% |
| IONS IONIS PHARMACEUTICALS INC | Healthcare | 1.4M | $105.4M | 4.9% | -4.0% |
| SEI SOLARIS ENERGY INFRASTRUCTUR | Industrials | 1.7M | $97.7M | 4.5% | -16.7% |
| DOCN DIGITALOCEAN HOLDINGS INC | Technology | 937.1K | $80.4M | 3.7% | +230.0% |
| GH GUARDANT HEALTH INC | Healthcare | 862.9K | $79.7M | 3.7% | +1.3% |
| NVDA NVIDIA CORP | Technology | 449.5K | $78.4M | 3.6% | -42.1% |
| NTRA NATERA INC | Healthcare | 371.6K | $74.3M | 3.4% | -8.8% |
| AKAM AKAMAI TECHNOLOGIES INC | Services media | 583.0K | $67.0M | 3.1% | New |
| MKSI MKS INC | Technology | 282.2K | $64.9M | 3.0% | -26.0% |
| AEIS ADVANCED ENERGY INDUSTRIES | Technology | 166.4K | $53.7M | 2.5% | -48.1% |
| LSCC LATTICE SEMICONDUCTOR CORP | Technology | 531.0K | $49.3M | 2.3% | New |
| SPOT SPOTIFY TECHNOLOGY SA | Communications | 90.0K | $43.6M | 2.0% | -55.8% |
| COMP COMPASS INC - CLASS A | Real estate | 5.7M | $41.7M | 1.9% | +10.0% |
| IOT SAMSARA INC-CL A | Technology | 1.3M | $40.8M | 1.9% | -16.6% |
| CVNA CARVANA CO | Consumer discretionary | 129.5K | $40.7M | 1.9% | -48.8% |
| VRT VERTIV HOLDINGS CO-A | Technology | 160.9K | $40.3M | 1.9% | -29.1% |
| SITM SITIME CORP | Technology | 105.0K | $36.3M | 1.7% | -15.3% |
| ETN EATON CORP PLC | Industrials | 95.0K | $34.0M | 1.6% | New |
| ARWR ARROWHEAD PHARMACEUTICALS IN | Healthcare | 540.1K | $33.9M | 1.6% | +14.9% |
| ADI ANALOG DEVICES INC | Technology | 104.0K | $33.1M | 1.5% | +1385.7% |
| NRG NRG ENERGY INC | Utilities | 220.0K | $32.2M | 1.5% | New |
| WGS GENEDX HOLDINGS CORP | Healthcare | 479.4K | $30.8M | 1.4% | -47.9% |
| NBIS NEBIUS GROUP NV | Technology | 280.0K | $29.1M | 1.3% | New |
| XMTR XOMETRY INC-A | Services media | 709.6K | $29.0M | 1.3% | +1.3% |
| CRUS CIRRUS LOGIC INC | Technology | 199.8K | $28.9M | 1.3% | +1009.8% |
| LNG CHENIERE ENERGY INC | Utilities | 100.0K | $28.4M | 1.3% | New |
| SKY CHAMPION HOMES INC | Other | 370.8K | $27.6M | 1.3% | -21.2% |
| BBIO BRIDGEBIO PHARMA INC | Healthcare | 352.8K | $26.2M | 1.2% | -56.6% |
| LRCX LAM RESEARCH CORP | Industrials | 110.0K | $23.5M | 1.1% | -16.7% |
| FROG JFROG LTD | Technology | 498.5K | $23.4M | 1.1% | -68.6% |
| CSTL CASTLE BIOSCIENCES INC | Healthcare | 940.7K | $23.1M | 1.1% | -11.1% |
| CEG CONSTELLATION ENERGY | Utilities | 80.0K | $22.3M | 1.0% | -38.5% |
| ESTA ESTABLISHMENT LABS HOLDINGS | Healthcare | 392.8K | $22.3M | 1.0% | +0.2% |
| NET CLOUDFLARE INC - CLASS A | Technology | 108.0K | $22.3M | 1.0% | New |
| AORT ARTIVION INC | Healthcare | 605.7K | $22.2M | 1.0% | -29.9% |
| HTFL HEARTFLOW INC | Healthcare | 892.1K | $21.7M | 1.0% | -29.1% |
| FPS FORGENT POWER SOLUTIONS-CL A | Industrials | 700.7K | $20.5M | 0.9% | New |
| AAON AAON INC | Industrials | 225.0K | $18.6M | 0.9% | New |
| RRX REGAL REXNORD CORP | Industrials | 80.0K | $15.0M | 0.7% | New |
| AXON AXON ENTERPRISE INC | Industrials | 33.5K | $14.2M | 0.7% | New |
| FIX COMFORT SYSTEMS USA INC | Industrials | 10.0K | $13.8M | 0.6% | -50.0% |
| MDB MONGODB INC | Technology | 50.0K | $12.2M | 0.6% | -83.1% |
| AEVA AEVA TECHNOLOGIES INC | Industrials | 920.0K | $12.1M | 0.6% | New |
| FSLY FASTLY INC - CLASS A | Technology | 391.5K | $11.4M | 0.5% | New |
| RBRK RUBRIK INC-A | Technology | 200.0K | $9.8M | 0.5% | -79.7% |
| ASML ASML HOLDING NV-NY REG SHS | Industrials | 7.3K | $9.6M | 0.4% | New |
| AVGO BROADCOM INC | Technology | 26.0K | $8.0M | 0.4% | New |
| VG VENTURE GLOBAL INC-CL A | Utilities | 500.0K | $7.9M | 0.4% | New |
13F filing history
| Period | Form | Filed | Entries | Reported value | Flags | Source |
|---|---|---|---|---|---|---|
| Q1 2026 | 13F-HR | May 15, 2026 | 148 | $3.72B | canonical | SEC ↗ |
| Q4 2025 | 13F-HR | Feb 17, 2026 | 124 | $4.81B | canonical | SEC ↗ |
| Q3 2025 | 13F-HR | Nov 14, 2025 | 165 | $4.82B | canonical | SEC ↗ |
| Q2 2025 | 13F-HR | Aug 14, 2025 | 134 | $3.95B | canonical | SEC ↗ |
| Q1 2025 | 13F-HR | May 15, 2025 | 142 | $3.89B | canonical | SEC ↗ |
| Q4 2024 | 13F-HR | Feb 14, 2025 | 148 | $5.24B | canonical | SEC ↗ |
| Q3 2024 | 13F-HR | Nov 14, 2024 | 107 | $3.23B | canonical | SEC ↗ |
| Q2 2024 | 13F-HR | Aug 14, 2024 | 100 | $2.62B | canonical | SEC ↗ |
| Q1 2024 | 13F-HR | May 15, 2024 | 121 | $2.91B | canonical | SEC ↗ |
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