Skip to content
Disclosery

WESTERLY CAPITAL MANAGEMENT, LLC

Follow

13F filer, CIK 1546172, SAN FRANCISCO, CA

WESTERLY CAPITAL MANAGEMENT, LLC reported $367,787,730 across 37 holdings for the quarter ended 2026-03-31, in a 13F-HR filed 2026-05-15. Its ten largest share positions make up 50.27% of the portfolio.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0002073679-26-000057

Period
2026-03-31
Reported value
$368M
Holdings
37
Top 10 weight
50.27%
New
4
Sold out
8

Largest buys vs the previous quarter

SecurityShares changeApprox. value
CSCOnew+225,000$17.5M
LUMNadded+1,400,000$9.73M
ENPHadded+225,000$8.51M
BLadded+220,000$8.14M
FRSHadded+850,000$6.83M

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Largest sells vs the previous quarter

SecurityShares changeApprox. value
VIAVreduced-725,000-$24.1M
AIPreduced-830,000-$13.6M
BEreduced-100,000-$13.5M
NKEexited-200,000-$12.7M
TDCexited-225,000-$6.85M

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Holdings, Q1 2026

Share positions as resolved from 13F-HR 0002073679-26-000057, largest first. % of portfolio is the value over $324,499,230, the sum of the share positions whose value is usable for ratios (method).

SecurityHistorySharesValue% of portfolioChangeLatest eventTimeline
UDMYUDEMY INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: 2,265,000 shares; 2025Q4: 4,000,000 shares; 2026Q1: 4,300,000 shares 4,300,000$19.9M6.12%+300,000Timeline
MRVLMARVELL TECHNOLOGY INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 105,000 shares; 2024Q4: 50,000 shares; 2025Q1: 75,000 shares; 2025Q2: 90,000 shares; 2025Q3: 180,000 shares; 2025Q4: 200,000 shares; 2026Q1: 200,000 shares 200,000$19.8M6.1%0Timeline
HDSNHUDSON TECHNOLOGIES INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 810,000 shares; 2024Q4: 1,017,580 shares; 2025Q1: 1,225,000 shares; 2025Q2: 2,000,000 shares; 2025Q3: 1,890,000 shares; 2025Q4: 2,550,000 shares; 2026Q1: 3,175,000 shares 3,175,000$18.7M5.75%+625,000Timeline
CSCOCISCO SYS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: not reported; 2026Q1: 225,000 shares 225,000$17.5M5.38%newTimeline
LUMNLUMEN TECHNOLOGIES INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: 500,000 shares; 2025Q1: 3,275,000 shares; 2025Q2: 2,550,000 shares; 2025Q3: 3,500,000 shares; 2025Q4: 800,000 shares; 2026Q1: 2,200,000 shares 2,200,000$15.3M4.71%+1,400,000Timeline
FRSHFRESHWORKS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 275,000 shares; 2024Q4: 300,000 shares; 2025Q1: 500,000 shares; 2025Q2: 505,000 shares; 2025Q3: 970,000 shares; 2025Q4: 1,050,000 shares; 2026Q1: 1,900,000 shares 1,900,000$15.3M4.7%+850,000Timeline
ENPHENPHASE ENERGY INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: 175,000 shares; 2026Q1: 400,000 shares 400,000$15.1M4.66%+225,000Timeline
NOKNOKIA CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: 1,350,000 shares; 2026Q1: 1,800,000 shares 1,800,000$14.5M4.46%+450,000Timeline
VIAVVIAVI SOLUTIONS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 1,050,000 shares; 2024Q4: 1,450,000 shares; 2025Q1: 1,930,000 shares; 2025Q2: 2,175,000 shares; 2025Q3: 2,000,000 shares; 2025Q4: 1,150,000 shares; 2026Q1: 425,000 shares 425,000$14.1M4.36%-725,000Timeline
HIPOHIPPO HLDGS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 577,000 shares; 2024Q4: 364,215 shares; 2025Q1: 250,000 shares; 2025Q2: 326,000 shares; 2025Q3: 338,000 shares; 2025Q4: 420,000 shares; 2026Q1: 500,000 shares 500,000$13M4.02%+80,000Timeline
FLRFLUOR CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 10,000 shares; 2024Q4: 170,000 shares; 2025Q1: 200,000 shares; 2025Q2: 150,000 shares; 2025Q3: 175,000 shares; 2025Q4: 200,000 shares; 2026Q1: 250,000 shares 250,000$11.7M3.59%+50,000Timeline
BLBLACKLINE INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 14,000 shares; 2024Q4: not reported; 2025Q1: 65,000 shares; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: 90,000 shares; 2026Q1: 310,000 shares 310,000$11.5M3.53%+220,000Timeline
MTRXMATRIX SVC COQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 1,100,000 shares; 2024Q4: 1,150,000 shares; 2025Q1: 1,018,000 shares; 2025Q2: 820,000 shares; 2025Q3: 1,100,000 shares; 2025Q4: 988,000 shares; 2026Q1: 965,000 shares 965,000$11.1M3.41%-23,000Timeline
ADTNADTRAN HOLDINGS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 1,320,000 shares; 2024Q4: 930,000 shares; 2025Q1: 835,000 shares; 2025Q2: 975,000 shares; 2025Q3: 920,220 shares; 2025Q4: 700,000 shares; 2026Q1: 800,000 shares 800,000$10.1M3.1%+100,000Timeline
CGNTCOGNYTE SOFTWARE LTDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 745,000 shares; 2024Q4: 900,000 shares; 2025Q1: 1,065,000 shares; 2025Q2: 850,000 shares; 2025Q3: 1,100,000 shares; 2025Q4: 1,155,000 shares; 2026Q1: 1,240,000 shares 1,240,000$10M3.1%+85,000Timeline
COURCOURSERA INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: 85,000 shares; 2025Q2: 285,000 shares; 2025Q3: 600,000 shares; 2025Q4: 1,000,000 shares; 2026Q1: 1,700,000 shares 1,700,000$9.89M3.05%+700,000Timeline
ASANASANA INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 1,425,000 shares; 2024Q4: 750,000 shares; 2025Q1: 300,000 shares; 2025Q2: 25,000 shares; 2025Q3: not reported; 2025Q4: 250,000 shares; 2026Q1: 1,274,000 shares 1,274,000$8.15M2.51%+1,024,000Timeline
NXDRNEXTDOOR HOLDINGS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 2,100,000 shares; 2024Q4: 3,100,000 shares; 2025Q1: 4,082,323 shares; 2025Q2: 3,550,000 shares; 2025Q3: 4,450,000 shares; 2025Q4: 4,500,000 shares; 2026Q1: 5,500,000 shares 5,500,000$7.7M2.37%+1,000,000Timeline
AIPARTERIS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 325,000 shares; 2024Q4: 250,000 shares; 2025Q1: 594,050 shares; 2025Q2: 680,000 shares; 2025Q3: 1,425,000 shares; 2025Q4: 1,295,000 shares; 2026Q1: 465,000 shares 465,000$7.64M2.36%-830,000Timeline
ESTCELASTIC N VQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 50,000 shares; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: 80,000 shares; 2025Q4: 220,000 shares; 2026Q1: 150,000 shares 150,000$7.5M2.31%-70,000Timeline
BEBLOOM ENERGY CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: 150,000 shares; 2025Q4: 150,000 shares; 2026Q1: 50,000 shares 50,000$6.77M2.09%-100,000Timeline
AMBAAMBARELLA INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 100,000 shares; 2024Q4: 5,000 shares; 2025Q1: not reported; 2025Q2: 143,000 shares; 2025Q3: 45,000 shares; 2025Q4: 85,000 shares; 2026Q1: 130,000 shares 130,000$6.69M2.06%+45,000Timeline
SCORCOMSCORE INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 310,000 shares; 2024Q4: 309,896 shares; 2025Q1: 395,000 shares; 2025Q2: 400,000 shares; 2025Q3: 400,000 shares; 2025Q4: 470,000 shares; 2026Q1: 897,000 shares 897,000$6.23M1.92%+427,000Timeline
TACTRANSALTA CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 767,500 shares; 2025Q3: 900,000 shares; 2025Q4: 805,000 shares; 2026Q1: 475,000 shares 475,000$6.22M1.92%-330,000Timeline
BIDUBAIDU INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 25,000 shares; 2024Q4: 25,000 shares; 2025Q1: 85,000 shares; 2025Q2: 60,000 shares; 2025Q3: 83,000 shares; 2025Q4: 50,000 shares; 2026Q1: 55,000 shares 55,000$6.13M1.89%+5,000Timeline
CGNXCOGNEX CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 60,000 shares; 2025Q3: 85,000 shares; 2025Q4: 100,000 shares; 2026Q1: 125,000 shares 125,000$6.12M1.89%+25,000Timeline
GLWCORNING INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 142,000 shares; 2024Q4: 110,000 shares; 2025Q1: 155,000 shares; 2025Q2: 125,000 shares; 2025Q3: 40,000 shares; 2025Q4: 60,000 shares; 2026Q1: 40,000 shares 40,000$5.44M1.68%-20,000Timeline
FIGFIGMA INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: not reported; 2026Q1: 250,000 shares 250,000$5.29M1.63%newTimeline
ORNORION GROUP HLDGS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: 25,000 shares; 2025Q4: 150,000 shares; 2026Q1: 440,000 shares 440,000$4.8M1.48%+290,000Timeline
ANGIANGI INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: 75,000 shares; 2025Q2: 370,000 shares; 2025Q3: 155,000 shares; 2025Q4: 500,000 shares; 2026Q1: 615,000 shares 615,000$4.21M1.3%+115,000Timeline
AMPLAMPLITUDE INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: 475,000 shares; 2025Q2: 400,000 shares; 2025Q3: 350,000 shares; 2025Q4: 500,000 shares; 2026Q1: 500,000 shares 500,000$3.41M1.05%0Timeline
FSLRFIRST SOLAR INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: 16,000 shares; 2025Q4: 16,000 shares; 2026Q1: 10,000 shares 10,000$1.97M0.61%-6,000Timeline
HHSHARTE HANKS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 625,000 shares; 2024Q4: 620,590 shares; 2025Q1: 618,226 shares; 2025Q2: 619,000 shares; 2025Q3: 619,000 shares; 2025Q4: 627,000 shares; 2026Q1: 627,000 shares 627,000$1.42M0.44%0Timeline
SPWRSUNPOWER INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: not reported; 2026Q1: 650,000 shares 650,000$826K0.25%newTimeline
NWPXNWPX INFRASTRUCTURE INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 35,000 shares; 2024Q4: 35,000 shares; 2025Q1: 40,000 shares; 2025Q2: 55,000 shares; 2025Q3: 50,000 shares; 2025Q4: 50,000 shares; 2026Q1: 8,000 shares 8,000$623K0.19%-42,000Timeline
GMTLGUARDIAN METAL RES PLCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: not reported; 2026Q1: 1,000 shares 1,000$17.5K0.01%newTimeline

Options

Puts and calls, as filed. The amount and value describe the underlying shares, not the option premium, so they stay out of % of portfolio (H5).

SecurityTypeAmountValueChange
INVESCO QQQ TRINVESCO QQQ TR PUTput75,000$43.3M-125,000

Sold out in Q1 2026

Positions in the previous quarter's report that this quarter's report no longer lists.

SecurityShares beforeValue beforeType
NKENIKE INC200,000$12.7Mshares
TDCTERADATA CORP DEL225,000$6.85Mshares
PDPAGERDUTY INC437,000$5.73Mshares
SNAPSNAP INC600,000$4.84Mshares
UNFUNIFIRST CORP MASS25,000$4.82Mshares
SPSCSPS COMM INC30,000$2.67Mshares
GENIGENIUS SPORTS LIMITED100,000$1.1Mshares
CSGSCSG SYS INTL INC5,000$383Kshares

How Q1 2026 was built

Available 13F filings of this filer for the quarter and their roles: the base report is the latest original or restatement, NEW HOLDINGS amendments filed after it are added (method).

FilingRoleAmendmentFiledAcceptedIngested
13F-HR 0002073679-26-000057 base2026-05-15acceptance time not in the bulk data set