HolderBook

Wellesley Asset Management

Reported holdings as of Q2 2026, from 31 quarterly filings.

CIK
1533551
Reported value
$1.1B
Positions
64
Top 10 weight
33.7%
Filed
2026-08-13
Days after quarter end
44

Holdings

SecurityTickerValue SharesWeightWeight change Held Change
BOX INC$47.0M49,546,0004.29%-0.46pp4qDEBT
ITRON INC$42.7M44,985,0003.90%+0.29pp5qDEBT
BLACKLINE INC$39.8M42,867,0003.63%+0.10pp5qDEBT
LIVANOVA PLC$39.0M31,146,0003.56%+0.36pp6qDEBT
AEROVIRONMENT INC$37.6M39,025,0003.43%+2.61pp2qDEBT
HAEMONETICS CORP MASS$36.6M37,883,0003.34%-0.32pp5qDEBT
MERITAGE HOMES CORP$33.2M32,281,0003.03%-0.42pp5qDEBT
PG&E CORP$32.8M32,230,0003.00%-0.73pp7qDEBT
GREENBRIER COS INC$30.6M26,998,0002.80%-0.67pp17qDEBT
SOUTHERN CO$30.2M30,127,0002.76%-newDEBT
DOORDASH INC$30.0M31,902,0002.74%-newDEBT
PARSONS CORP DEL$29.9M30,098,0002.73%-0.21pp6qDEBT
MICROCHIP TECHNOLOGY INC.$29.5M27,068,0002.70%-0.21pp2qDEBT
GUIDEWIRE SOFTWARE INC$29.0M31,894,0002.65%-0.53pp3qDEBT
GLOBAL PMTS INC$26.8M29,583,0002.45%-0.36pp6qDEBT
DROPBOX INC$26.8M28,266,0002.45%+0.35pp3qDEBT
TRAVERE THERAPEUTICS INC$26.3M23,551,0002.40%-newDEBT
MERIT MED SYS INC$26.1M25,627,0002.38%-newDEBT
ENVISTA HOLDINGS CORPORATION$25.3M25,263,0002.31%-0.35pp2qDEBT
REPLIGEN CORP$24.5M25,587,0002.24%-0.08pp7qDEBT
WINNEBAGO INDS INC$23.4M24,881,0002.14%-0.38pp6qDEBT
SYNAPTICS INC$23.1M15,386,0002.11%-1.69pp3qDEBT
AKAMAI TECHNOLOGIES INC$23.1M19,682,0002.11%-1.45pp24qDEBT
DATADOG INC$23.0M16,021,0002.10%-0.98pp3qDEBT
EEFT 0.625 10/01/30 CVT$22.7M27,000,0002.07%-newDEBT
LEMAITRE VASCULAR INC$21.1M20,558,0001.92%-0.30pp3qDEBT
PROGRESS SOFTWARE CORP$20.9M21,041,0001.91%-0.42pp6qDEBT
CMS ENERGY CORP$20.7M20,500,0001.89%+0.30pp9qDEBT
OMNICELL COM$20.6M20,766,0001.88%+0.07pp3qDEBT
INTEGER HLDGS CORP$20.5M21,186,0001.87%-newDEBT
LANTHEUS HLDGS INC$17.1M11,876,0001.56%-0.26pp3qDEBT
JD.COM INC$17.0M17,185,0001.56%-newDEBT
NUTANIX INC$16.0M16,171,0001.46%+1.20pp2qDEBT
ON SEMICONDUCTOR CORP$15.7M12,961,0001.43%-1.93pp10qDEBT
TETRA TECH INC NEW$14.6M15,782,0001.33%+1.01pp6qDEBT
LYFT INC$10.4M9,900,0000.95%-1.12pp6qDEBT
JAZZ INVESTMENTS I LTD$10.1M7,500,0000.93%+0.33pp2qDEBT
WORLD KINECT CORPORATION$10.0M9,170,0000.91%+0.29pp8qDEBT
LIVE NATION ENTERTAINMENT IN$9.8M8,690,0000.90%+0.43pp2qDEBT
PPL CAP FDG INC$9.5M8,480,0000.87%-0.27pp10qDEBT
BIOMARIN PHARMACEUTICAL INC$9.4M9,624,0000.86%+0.45pp20qDEBT
CHEESECAKE FACTORY INC$8.9M9,000,0000.81%+0.38pp2qDEBT
FLUOR CORP$8.0M7,645,0000.73%+0.37pp8qDEBT
LCI INDS$8.0M7,200,0000.73%-0.32pp2qDEBT
AMPHASTAR PHARMACEUTICALS IN$7.7M8,460,0000.70%-1.78pp8qDEBT
PACIRA BIOSCIENCES INC$7.5M7,522,0000.69%-0.05pp4qDEBT
ETSY INC$7.1M7,735,0000.65%-newDEBT
COGENT BIOSCIENCES INC$6.5M7,250,0000.59%+0.25pp3qDEBT
ALLIANT ENERGY CORP$5.5M6,500,0000.50%-newDEBT
ALARM COM HLDGS INC$5.4M5,626,0000.49%-0.06pp5qDEBT
COLLEGIUM PHARMACEUTICAL INC$4.6M5,725,0000.42%+0.16pp6qDEBT
POST HLDGS INC$4.5M5,750,0000.41%+0.12pp3qDEBT
SOUTHERN CO$4.4M4,500,0000.40%-0.07pp2qDEBT
CELCUITY INC$3.2M3,500,0000.29%-newDEBT
REVOLUTION MEDICINES INC$2.9M2,570,0000.26%-newDEBT
NUVATION BIO INC$2.7M3,500,0000.25%-newDEBT
IMMUNOCORE HLDGS PLC$2.2M4,150,0000.20%-0.03pp6qDEBT
AKAMAI TECHNOLOGIES INC$1.9M1,594,0000.17%-1.90pp6qDEBT
BRIDGEBIO PHARMA INC$463.1K275,0000.04%+0.02pp2qDEBT
UBER TECHNOLOGIES INC$450.9K375,0000.04%-newDEBT
ANI PHARMACEUTICALS INC$325.4K250,0000.03%-newDEBT
LIBERTY MEDIA CORP DEL$316.3K250,0000.03%-newDEBT
CYBERARK SOFTWARE LTD$298.9K175,0000.03%-newDEBT
TRANSMEDICS GROUP INC$274.0K250,0000.03%-newDEBT

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.

Not classified 100.0%
 
SectorValueShare
Not classified$1.1B100.0%

Quarter by quarter

QuarterValuePositions NewAddedTrimmed ExitedTop 10 Days to file
Q2 2026$1.1B64172321733.7%44
Q1 2026$952.5M541218181237.7%41
Q4 2025$960.8M541115261340.4%37
Q3 2025$998.8M56615311439.4%21
Q2 2025$1.0B64112825838.7%36
Q1 2025$1.0B611716241441.0%32
Q4 2024$962.3M58141130550.4%27
Q3 2024$1.0B491211251148.3%23
Q2 2024$944.5M481213221952.7%38
Q1 2024$990.3M5518828253.1%44
Q4 2023$1.0B3955291154.3%40
Q3 2023$2.0B455337249.4%44
Q2 2023$1.2B42610261149.7%45
Q1 2023$1.4B476410748.7%45
Q4 2022$1.5M48417212146.4%41
Q3 2022$1.4B652020201046.1%45
Q2 2022$1.5B551515242845.6%46
Q1 2022$1.5B68281820848.0%46
Q4 2021$1.2B48912271857.1%45
Q3 2021$1.2B5741791551.0%46
Q2 2021$833.9M31000062.5%44
Q1 2021$833.9M3174201062.5%41
Q4 2020$1.7B3472071360.6%47
Q3 2020$901.8M4091218966.3%44
Q2 2020$832.3M40413201070.5%44
Q1 2020$849.5M465832459.4%44
Q4 2019$1.2B45011321551.3%44
Q3 2019$1.5B6072427342.8%43
Q2 2019$1.5B561011321442.8%40
Q1 2019$1.4B60321331944.5%37
Q4 2018$1.5B76000041.8%38

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.