HolderBook

WESTERLY CAPITAL MANAGEMENT, LLC

Reported holdings as of Q2 2026, from 19 quarterly filings.

This filer last reported in Q2 2026; the most recent quarter on file across all filers is Q3 2026. Firms that restructure stop filing under one CIK and start under another, so a successor entity may hold these positions now under a similar name.

CIK
1546172
Reported value
$541.8M
Positions
46
Top 10 weight
58.1%
Filed
2026-08-14
Days after quarter end
45

Holdings

Download these holdings as CSV

SecurityTickerValue SharesWeightWeight change Held Change
INVESCO QQQ TR OPTQQQ$128.9M175,00023.79%+12.02pp6qHELD
COURSERA INCCOUR$34.3M6,085,0006.33%+3.64pp6q+257.9%+$24.7M
VIAVI SOLUTIONS INCVIAV$27.5M575,0005.07%+1.22pp11q+35.3%+$7.2M
ARISTA NETWORKS INCANET$21.2M125,0003.92%-newNEW
ASANA INCASAN$21.2M3,030,0003.91%+1.70pp3q+137.8%+$12.3M
HUDSON TECHNOLOGIES INCHDSN$19.4M3,380,0003.58%-1.50pp19q+6.5%+$1.2M
HIPPO HLDGS INCHIPO$18.2M645,0003.36%-0.18pp16q+29.0%+$4.1M
ADOBE INCADBE$15.0M73,0002.76%-newNEW
FLUOR CORPFLR$14.8M283,0002.74%-0.43pp8q+13.2%+$1.7M
SALESFORCE INCCRM$14.4M92,0002.66%-newNEW
ENPHASE ENERGY INCENPH$13.5M275,0002.50%-1.61pp3q-31.2%-$6.2M
NOKIA CORPNOK$13.3M1,000,0002.45%-1.48pp3q-44.4%-$10.6M
COGNEX CORPCGNX$12.3M170,0002.27%+0.61pp5q+36.0%+$3.3M
NEXTDOOR HOLDINGS INCNXDR$11.0M4,850,0002.03%-0.06pp17q-11.8%-$1.5M
LUMEN TECHNOLOGIES INCLUMN$10.8M1,400,0001.98%-2.17pp7q-36.4%-$6.1M
COMSCORE INCSCOR$9.7M1,310,9611.79%+0.09pp11q+46.1%+$3.1M
NEXTPOWER INCNXT$8.9M75,0001.65%-newNEW
GUIDEWIRE SOFTWARE INCGWRE$8.6M70,0001.59%-newNEW
MATRIX SVC COMTRX$8.2M595,9301.51%-1.51pp15q-38.2%-$5.1M
FRESHWORKS INCFRSH$8.1M800,0001.49%-2.65pp9q-57.9%-$11.1M
CALIX INCCALX$7.7M205,0001.41%-newNEW
AEVEX CORPAVEX$7.1M340,0001.31%-newNEW
AMPHENOL CORPAPH$7.1M40,0001.30%-newNEW
BLACKLINE INCBL$7.0M250,0001.30%-1.82pp3q-19.4%-$1.7M
ORION GROUP HLDGS INCORN$7.0M415,0001.29%-0.02pp4q-5.7%-$420.5K
ADTRAN HOLDINGS INCADTN$7.0M500,0001.28%-1.45pp9q-37.5%-$4.2M
AMBARELLA INCAMBA$6.9M80,0001.27%-0.55pp5q-38.5%-$4.3M
COGNYTE SOFTWARE LTDCGNT$6.7M760,0001.23%-1.50pp19q-38.7%-$4.2M
CISCO SYS INCCSCO$6.5M55,0001.19%-3.55pp2q-75.6%-$20.0M
FERRARI N VRACE$6.3M17,0001.17%-newNEW
NVIDIA CORPORATIONNVDA$6.0M30,0001.11%-newNEW
APPLIED AEROSPACE & DEFENSEAADX$5.7M250,0001.05%-newNEW
TRANSALTA CORPTAC$5.5M400,0001.02%-0.67pp5q-15.8%-$1.0M
NETFLIX INCNFLX$5.0M70,0000.92%-newNEW
BLOOM ENERGY CORPBE$4.5M15,0000.84%-1.00pp4q-70.0%-$10.6M
FIGMA INCFIG$4.5M250,0000.83%-0.60pp2qHELD
SNOWFLAKE INC OPTSNOW$3.8M15,0000.70%-newNEW
FIRST SOLAR INCFSLR$3.5M15,0000.65%+0.12pp4q+50.0%+$1.2M
ELASTIC N VESTC$2.9M50,0000.53%-1.51pp4q-66.7%-$5.7M
GUARDIAN METAL RES PLCGMTL$2.8M200,0000.52%+0.51pp2q+19900.0%+$2.8M
ANGI INCANGI$2.6M440,9210.48%-0.66pp6q-28.3%-$1.0M
ARM HOLDINGS PLC OPTARM$1.8M5,0000.33%-newNEW
AMPLITUDE INCAMPL$1.5M200,0000.28%-0.64pp6q-60.0%-$2.3M
HARTE HANKS INCHHS$1.4M635,0000.25%-0.13pp19q+1.3%+$17.3K
AVIAT NETWORKS INCAVNW$1.1M50,0000.20%-newNEW
SUNPOWER INCSPWR$687.3K1,000,0000.13%-0.10pp2q+53.8%+$240.6K

By sector

Industry comes from the SIC code on each company's own SEC filings, which is self-reported and sometimes out of date. Derivative exposure is counted with the shares. Securities the SEC assigns no industry - funds, trusts, foreign issues - are shown as not classified rather than dropped.

Software & IT Services 25.7%Funds & ETFs 23.8%Semiconductors & Electronics 18.7%Construction & Building 5.7%Computer Hardware 5.1%Telecom & Media 4.3%Wholesale & Distribution 3.6%Insurance 3.4%Business Services 2.5%Instruments & Controls 2.3%Other sectors 2.7%Not classified 2.4%
 
SectorValueShare
Software & IT Services$139.0M25.7%
Funds & ETFs$128.9M23.8%
Semiconductors & Electronics$101.0M18.7%
Construction & Building$30.7M5.7%
Computer Hardware$27.7M5.1%
Telecom & Media$23.4M4.3%
Wholesale & Distribution$19.4M3.6%
Insurance$18.2M3.4%
Business Services$13.7M2.5%
Instruments & Controls$12.3M2.3%
Other sectors$14.7M2.7%
Not classified$12.8M2.4%

What the disclosed book did

This is not the fund's return. A 13F shows long US equity positions only, so shorts, bonds, foreign listings, private holdings and cash are all invisible here. What this measures is the quarter's change in value of the positions this manager disclosed, had they been left untouched - the return a reader following the filing would have earned.

QuarterBookMarket DifferencePriced
Q2 2026+40.3%+14.8%+25.5%94%
Q1 2026-1.7%-4.6%+2.9%100%
Q4 2025+3.0%+2.4%+0.6%93%
Q3 2025+21.9%+7.8%+14.1%100%
Q2 2025+10.2%+10.5%-0.2%100%
Q1 2025-7.6%-4.6%-3.0%81%
Q4 2024+19.5%+2.1%+17.4%100%
Q3 2024+5.3%+5.4%-0.1%98%

Market is SPY over the same two quarter ends, priced the same way as everything else here - the median across every filer reporting it. It is a large-cap US proxy, so a manager holding small caps or biotech will beat or trail it for reasons that are not skill. Prices are quarter-end to quarter-end and say nothing about the path in between, or about trades opened and closed inside a quarter.

Quarter by quarter

QuarterValuePositions NewAddedTrimmed ExitedTop 10 Days to file
Q2 2026$541.8M46151217658.1%45
Q1 2026$367.8M374209852.6%45
Q4 2025$455.3M417199960.7%48
Q3 2025$319.1M431215121153.9%45
Q2 2025$269.6M42111514751.8%45
Q1 2025$231.3M38102251650.0%45
Q4 2024$216.6M44121117952.1%45
Q3 2024$177.9M411110181150.5%45
Q2 2024$200.9M41918121551.5%45
Q1 2024$263.7M471219102354.5%45
Q4 2023$202.3M5823229741.7%45
Q3 2023$141.9M421112131749.6%45
Q2 2023$189.9M481611161551.4%45
Q1 2023$139.6M47121619948.6%45
Q4 2022$127.1M44131910951.5%45
Q3 2022$111.7M40519101051.7%45
Q2 2022$123.3M451411151053.0%46
Q1 2022$135.4M41111861551.0%46
Q4 2021$152.2M45000040.7%45

Rows marked UNVERIFIED ID, PLACEHOLDER ID, TICKER AS ID or NON-CUSIP ID carry an identifier that is not a valid CUSIP. They are shown because the filer reported that money, but treat the security named with caution - hover the chip for what is wrong with it, and see the methodology.

Held counts consecutive filings in which this manager reported the position, and can reach further back than the quarters listed above: the tabs begin at Q4 2018 because earlier coverage is too sparse to describe a market, but tenure is counted over every filing we hold, some reaching to 2007. A position sold and later rebought starts again from one.

Weight change is the shift in this position's share of the whole book, in percentage points. It is the more useful column: when money flows into or out of a broad fund, almost every holding is bought or sold at once, so added and trimmed largely track flows. A weight that rose while the book shrank is a decision. Both compare with the previous quarter this filer reported, not the previous calendar quarter.