Wellesley Asset Management
Follow13F filer, CIK 1533551, PORTSMOUTH, NH
Wellesley Asset Management reported $960,808,541 across 54 holdings for the quarter ended 2025-12-31, in a 13F-HR/A filed 2026-02-06. Its ten largest share positions make up 40.44% of the portfolio.
Filed (acceptance time not in the bulk data set), ingested 13F-HR/A 0001533551-26-000002
- Period
- 2025-12-31
- Reported value
- $961M
- Holdings
- 54
- Top 10 weight
- 40.44%
- New
- 11
- Sold out
- 13
Holdings, Q4 2025
Share positions as resolved from 13F-HR/A 0001533551-26-000002, largest first. % of portfolio is the value over $960,808,541, the sum of the share positions whose value is usable for ratios (method).
| Security | History | Shares | Value | % of portfolio | Change | Latest event | Timeline |
|---|
Principal amounts
Notes and convertibles filed as a face amount (PRN). A face amount is never added to a share count (H6).
| Security | Type | Amount | Value | Change |
|---|---|---|---|---|
| BOX INCBOX INC NOTE 1.500% 9/1 | principal | 44,891,000 | $43.4M | +12,836,000 |
| HAEMONETICS CORP MASSHAEMONETICS CORP MASS NOTE 2.500% 6/0 | principal | 40,842,000 | $42.4M | +12,477,000 |
| SYNAPTICS INCSYNAPTICS INC NOTE 0.750%12/0 | principal | 39,166,000 | $41.7M | new |
| LIVANOVA PLCLIVANOVA PLC NOTE 2.500% 3/1 | principal | 34,131,000 | $39.3M | -7,043,000 |
| FORD MOTOR COMPANYFORD MOTOR COMPANY NOTE 3/1 | principal | 37,047,000 | $38.7M | -6,350,000 |
| PG&E CORPPG&E CORP NOTE 4.250%12/0 | principal | 36,998,000 | $38.2M | -3,704,000 |
| ITRON INCITRON INC NOTE 1.375% 7/1 | principal | 36,131,000 | $36.9M | +32,381,000 |
| GREENBRIER COS INCGREENBRIER COS INC NOTE 2.875% 4/1 | principal | 33,446,000 | $36.3M | +5,546,000 |
| BLACKLINE INCBLACKLINE INC NOTE 1.000% 6/0 | principal | 34,564,000 | $36.2M | -1,376,000 |
| VISHAY INTERTECHNOLOGY INCVISHAY INTERTECHNOLOGY INC NOTE 2.250% 9/1 | principal | 38,981,000 | $35.5M | -3,734,000 |
| MERITAGE HOMES CORPMERITAGE HOMES CORP NOTE 1.750% 5/1 | principal | 34,144,000 | $33.7M | -3,715,000 |
| ON SEMICONDUCTOR CORPON SEMICONDUCTOR CORP NOTE 0.500% 3/0 | principal | 32,959,000 | $31.6M | -6,716,000 |
| SHIFT4 PMTS INCSHIFT4 PMTS INC NOTE 0.500% 8/0 | principal | 31,430,000 | $30.1M | +13,475,000 |
| AKAMAI TECHNOLOGIES INCAKAMAI TECHNOLOGIES INC NOTE 0.375% 9/0 | principal | 29,398,000 | $29.4M | -1,464,000 |
| REPLIGEN CORPREPLIGEN CORP NOTE 1.000%12/1 | principal | 24,122,000 | $26.5M | +284,000 |
| AMPHASTAR PHARMACEUTICALS INAMPHASTAR PHARMACEUTICALS IN NOTE 2.000% 3/1 | principal | 28,473,000 | $26.3M | -13,884,000 |
| WINNEBAGO INDS INCWINNEBAGO INDS INC NOTE 3.250% 1/1 | principal | 27,463,000 | $25.9M | -3,522,000 |
| LYFT INCLYFT INC Convertible | principal | 21,186,000 | $25.8M | -5,046,000 |
| PARSONS CORP DELPARSONS CORP DEL NOTE 2.625% 3/0 | principal | 23,772,000 | $24.6M | -1,117,000 |
| GLOBAL PMTS INCGLOBAL PMTS INC NOTE 1.500% 3/0 | principal | 26,844,000 | $24.1M | +1,253,000 |
| SPOTIFY USA INCSPOTIFY USA INC NOTE 3/1 | principal | 19,002,000 | $21.4M | -2,382,000 |
| JBT MAREL CORPORATIONJBT MAREL CORPORATION NOTE 0.250% 5/1 | principal | 19,653,000 | $20.2M | -1,244,000 |
| OMNICELL COMOMNICELL COM NOTE 1.000%12/0 | principal | 16,894,000 | $18.2M | new |
| AKAMAI TECHNOLOGIES INCAKAMAI TECHNOLOGIES INC NOTE 1.125% 2/1 | principal | 18,151,000 | $17.9M | -1,130,000 |
| LANTHEUS HLDGS INCLANTHEUS HLDGS INC Convertible | principal | 14,769,000 | $16.9M | new |
| ALARM COM HLDGS INCALARM COM HLDGS INC NOTE 2.250% 6/0 | principal | 17,463,000 | $16.7M | +7,607,000 |
| PROGRESS SOFTWARE CORPPROGRESS SOFTWARE CORP NOTE 3.500% 3/0 | principal | 16,368,000 | $16.4M | +12,868,000 |
| DATADOG INCDATADOG INC NOTE 12/0 | principal | 15,353,000 | $15.2M | new |
| PPL CAP FDG INCPPL CAP FDG INC NOTE 2.875% 3/1 | principal | 13,181,000 | $14.5M | -808,000 |
| ALLIANT ENERGY CORPALLIANT ENERGY CORP NOTE 3.875% 3/1 | principal | 12,455,000 | $13M | -1,227,000 |
| ENOVIS CORPORATIONENOVIS CORPORATION NOTE 3.875%10/1 | principal | 13,197,000 | $12.9M | new |
| FIRSTENERGY CORPFIRSTENERGY CORP NOTE 4.000% 5/0 | principal | 10,576,000 | $10.9M | new |
| SPECTRUM BRANDS INCSPECTRUM BRANDS INC Convertible Bond | principal | 9,028,000 | $8.57M | -12,072,000 |
| ORMAT TECHNOLOGIES INCORMAT TECHNOLOGIES INC NOTE 2.500% 7/1 | principal | 6,070,000 | $8.32M | -279,000 |
| WORLD KINECT CORPORATIONWORLD KINECT CORPORATION Convertible | principal | 5,693,000 | $6.07M | +1,201,000 |
| COLLEGIUM PHARMACEUTICAL INCCOLLEGIUM PHARMACEUTICAL INC NOTE 2.875% 2/1 | principal | 4,000,000 | $5.62M | +500,000 |
| TETRA TECH INC NEWTETRA TECH INC NEW DBCV 2.250% 8/1 | principal | 4,890,000 | $5.32M | +1,400,000 |
| FLUOR CORPFLUOR CORP NOTE 1.125% 8/1 | principal | 4,502,000 | $5.27M | -230,000 |
| PACIRA BIOSCIENCES INCPACIRA BIOSCIENCES INC NOTE 2.125% 5/1 | principal | 5,013,000 | $4.97M | +3,375,000 |
| COGENT BIOSCIENCES INCCOGENT BIOSCIENCES INC NOTE 1.625%11/1 | principal | 4,000,000 | $4.65M | new |
| CAPITAL SOUTHWEST CORPCAPITAL SOUTHWEST CORP Convertible Bond | principal | 4,462,000 | $4.42M | -13,947,000 |
| POST HLDGS INCPOST HLDGS INC NOTE 2.500% 8/1 | principal | 4,000,000 | $4.32M | new |
| GUIDEWIRE SOFTWARE INCGUIDEWIRE SOFTWARE INC NOTE 1.250%11/0 | principal | 4,000,000 | $4.28M | new |
| CENTERPOINT ENERGY INCCENTERPOINT ENERGY INC NOTE 4.250% 8/1 | principal | 3,735,000 | $4.12M | -304,000 |
| DROPBOX INCDROPBOX INC NOTE 3/0 | principal | 4,005,000 | $4M | new |
| BIOMARIN PHARMACEUTICAL INCBIOMARIN PHARMACEUTICAL INC NOTE 1.250% 5/1 | principal | 4,058,000 | $3.9M | -22,905,000 |
| IMMUNOCORE HLDGS PLCIMMUNOCORE HLDGS PLC NOTE 2.500% 2/0 | principal | 4,150,000 | $3.74M | +550,000 |
| MKS INC.MKS INC. NOTE 1.250% 6/0 | principal | 2,750,000 | $3.63M | 0 |
| TYLER TEX INDPT SCH DISTTYLER TEX INDPT SCH DIST NOTE 0.250% 3/1 | principal | 3,500,000 | $3.5M | +500,000 |
| WEC ENERGY GROUP INCWEC ENERGY GROUP INC NOTE 4.375% 6/0 | principal | 3,000,000 | $3.41M | -500,000 |
| LEMAITRE VASCULAR INCLEMAITRE VASCULAR INC NOTE 2.500% 2/0 | principal | 3,250,000 | $3.23M | new |
| DUKE ENERGY CORP NEWDUKE ENERGY CORP NEW CONV BND | principal | 3,000,000 | $3.1M | 0 |
| CSG SYS INTL INCCSG SYS INTL INC NOTE 3.875% 9/1 | principal | 2,484,000 | $2.94M | -2,675,000 |
| CMS ENERGY CORPCMS ENERGY CORP NOTE 3.375% 5/0 | principal | 2,310,000 | $2.48M | -230,000 |
Sold out in Q4 2025
Positions in the previous quarter's report that this quarter's report no longer lists.
| Security | Shares before | Value before | Type |
|---|---|---|---|
| UBER TECHNOLOGIES INCUBER TECHNOLOGIES INC | 32,878,000 | $39.6M | principal |
| HALOZYME THERAPEUTICS INCHALOZYME THERAPEUTICS INC | 23,374,000 | $27.3M | principal |
| ITRON INCITRON INC | 20,657,000 | $21.8M | principal |
| DRAFTKINGS INC NEWDRAFTKINGS INC NEW | 20,104,000 | $18M | principal |
| IMAX CORPIMAX CORP | 13,228,000 | $15.7M | principal |
| GLADSTONE CAP CORPGLADSTONE CAP CORP | 14,800,000 | $14.5M | principal |
| ADVANCED ENERGY INDSADVANCED ENERGY INDS | 5,904,000 | $8.38M | principal |
| DEXCOM INCDEXCOM INC | 7,606,000 | $6.94M | principal |
| AIRBNB INC CLASS AAIRBNB INC CLASS A | 6,249,000 | $6.12M | principal |
| BENTLEY SYS INCBENTLEY SYS INC | 3,500,000 | $3.31M | principal |
| FIVE9 INCFIVE9 INC | 2,948,000 | $2.61M | principal |
| MGP INGREDIENTS INC NEWMGP INGREDIENTS INC NEW | 1,989,000 | $1.91M | principal |
| LCI INDSLCI INDS | 674,000 | $659K | principal |
How Q4 2025 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).
| Filing | Role | Amendment | Filed | Accepted | Ingested |
|---|---|---|---|---|---|
| 13F-HR 0001533551-26-000001 | superseded | 2026-02-06 | acceptance time not in the bulk data set | ||
| 13F-HR/A 0001533551-26-000002 | base | restatement | 2026-02-06 | acceptance time not in the bulk data set |