WESTERLY CAPITAL MANAGEMENT, LLC
Long book
$324.5M
Q1 2026
Positions
36
Top-10 weight
50%
concentration
Last quarter
+29.6%
SPY +14.8%
Turnover
27%
of book per quarter
Strategy in plain words
auto-generated from filingsWESTERLY CAPITAL MANAGEMENT, LLC is a concentrated fundamental stock-picker, specialised in technology (65% of the long book), running a $324.5M US long book across 36 positions.
The portfolio is concentrated: the top 10 names carry 50% of the portfolio. The portfolio is actively managed, with meaningful quarterly turnover. Current anchor positions: UDEMY INC, MARVELL TECHNOLOGY INC, HUDSON TECHNOLOGIES INC, CISCO SYSTEMS INC, LUMEN TECHNOLOGIES INC.
Over the last 9 quarters its long book ran on average 3.4pp per quarter ahead of the S&P 500, beating the index in 6 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
-6.5%
Q2 2024
+3.9%
Q3 2024
+18.8%
Q4 2024
-8.1%
Q1 2025
+11.0%
Q2 2025
+18.3%
Q3 2025
+4.1%
Q4 2025
-0.2%
Q1 2026
+29.6%
Sector allocation
Technology 58%
Industrials 14%
Other 7%
Consumer discretionary 6%
Communications 5%
Financials 4%
Services media 4%
Utilities 2%
Long book by quarter
What does WESTERLY CAPITAL own?
Q1 2026 13F| Company | Sector | Shares | Value | % of book | Change |
|---|---|---|---|---|---|
| 7WH UDEMY INC | — | 4.3M | $19.9M | 6.1% | +7.5% |
| MRVL MARVELL TECHNOLOGY INC | Technology | 200.0K | $19.8M | 6.1% | Held |
| HDSN HUDSON TECHNOLOGIES INC | Consumer discretionary | 3.2M | $18.7M | 5.8% | +24.5% |
| CSCO CISCO SYSTEMS INC | Technology | 225.0K | $17.5M | 5.4% | New |
| LUMN LUMEN TECHNOLOGIES INC | Communications | 2.2M | $15.3M | 4.7% | +175.0% |
| FRSH FRESHWORKS INC-CL A | Technology | 1.9M | $15.3M | 4.7% | +81.0% |
| ENPH ENPHASE ENERGY INC | Technology | 400.0K | $15.1M | 4.7% | +128.6% |
| VIAV VIAVI SOLUTIONS INC | Technology | 425.0K | $14.1M | 4.4% | -63.0% |
| HIPO HIPPO HOLDINGS INC | Financials | 500.0K | $13.0M | 4.0% | +19.0% |
| FLR FLUOR CORP | Industrials | 250.0K | $11.7M | 3.6% | +25.0% |
| BL BLACKLINE INC | Technology | 310.0K | $11.5M | 3.5% | +244.4% |
| MTRX MATRIX SERVICE CO | Industrials | 965.0K | $11.1M | 3.4% | -2.3% |
| ADTN ADTRAN HOLDINGS INC | Technology | 800.0K | $10.1M | 3.1% | +14.3% |
| CGNT COGNYTE SOFTWARE LTD | Technology | 1.2M | $10.0M | 3.1% | +7.4% |
| COUR COURSERA INC | Technology | 1.7M | $9.9M | 3.0% | +70.0% |
| ASAN ASANA INC - CL A | Technology | 1.3M | $8.2M | 2.5% | +409.6% |
| NXDR NEXTDOOR HOLDINGS INC | Technology | 5.5M | $7.7M | 2.4% | +22.2% |
| AIP ARTERIS INC | Technology | 465.0K | $7.6M | 2.4% | -64.1% |
| ESTC ELASTIC NV | Technology | 150.0K | $7.5M | 2.3% | -31.8% |
| BE BLOOM ENERGY CORP- A | Industrials | 50.0K | $6.8M | 2.1% | -66.7% |
| AMBA AMBARELLA INC | Technology | 130.0K | $6.7M | 2.1% | +52.9% |
| SCOR COMSCORE INC | Services media | 897.0K | $6.2M | 1.9% | +90.9% |
| TAC TRANSALTA CORP | Utilities | 475.0K | $6.2M | 1.9% | -41.0% |
| CGNX COGNEX CORP | Technology | 125.0K | $6.1M | 1.9% | +25.0% |
| GLW CORNING INC | Industrials | 40.0K | $5.4M | 1.7% | -33.3% |
| FIG FIGMA INC-CL A | Technology | 250.0K | $5.3M | 1.6% | New |
| ORN ORION GROUP HOLDINGS INC | Industrials | 440.0K | $4.8M | 1.5% | +193.3% |
| ANGI ANGI INC | Services media | 615.0K | $4.2M | 1.3% | +23.0% |
| AMPL AMPLITUDE INC-CLASS A | Technology | 500.0K | $3.4M | 1.1% | Held |
| FSLR FIRST SOLAR INC | Technology | 10.0K | $2.0M | 0.6% | -37.5% |
| HHS HARTE-HANKS INC | Services media | 627.0K | $1.4M | 0.4% | Held |
| SPWR SUNPOWER INC | Industrials | 650.0K | $826K | 0.3% | New |
| NWPX NWPX INFRASTRUCTURE INC | Industrials | 8.0K | $623K | 0.2% | -84.0% |
13F filing history
| Period | Form | Filed | Entries | Reported value | Flags | Source |
|---|---|---|---|---|---|---|
| Q1 2026 | 13F-HR | May 15, 2026 | 37 | $367.8M | canonical | SEC ↗ |
| Q4 2025 | 13F-HR | Feb 17, 2026 | 41 | $455.3M | canonical | SEC ↗ |
| Q3 2025 | 13F-HR | Nov 14, 2025 | 44 | $319.1M | canonical | SEC ↗ |
| Q2 2025 | 13F-HR | Aug 14, 2025 | 42 | $269.6M | canonical | SEC ↗ |
| Q1 2025 | 13F-HR | May 15, 2025 | 38 | $231.3M | canonical | SEC ↗ |
| Q4 2024 | 13F-HR | Feb 14, 2025 | 44 | $216.6M | canonical | SEC ↗ |
| Q3 2024 | 13F-HR | Nov 14, 2024 | 41 | $177.9M | canonical | SEC ↗ |
| Q2 2024 | 13F-HR | Aug 14, 2024 | 41 | $200.9M | canonical | SEC ↗ |
| Q1 2024 | 13F-HR | May 15, 2024 | 48 | $263.7M | canonical | SEC ↗ |