Wellesley Asset Management

PORTSMOUTH, NH · CIK 1533551 · 13F filing filed 2026-08-13

SEC-registered investment adviser since 2002 · corporation

Assets managed$2.0bn
Staff30 · 19 in investment roles
Main clients (by assets)Mutual funds and ETFs 39%, High net worth individuals 24%, Individuals 20%
Private funds1 (1 hedge) · $137.7m gross assets
Websitewellesleyassetmanagement.com
Form ADV · 2026-03-30SEC adviser record

Legal entityWELLESLEY ASSET MANAGEMENT, INC. (US)

Kindhedge funds, mutual funds
Others nearbyPortsmouth, NH, Boston, MA, Wellesley, MA

As an employer

Offices in1 country
Private fundshedge 1

Where they work

people there (dot area)number not reportedmain officeHover or tap a dot. Australian and UK companies are placed at their business or registered address, with their staff across the whole country.

Offices

From Form ADV: the main office and the other offices where it does advisory work (at most the 25 largest), with the people doing investment work at each. “About” is worked out: the firm's investment staff less its other offices. Each city links to the other managers there.

City	Country	People
Portsmouth, NH (main office)United States	United States	about 14
Boston, MAUnited States	United States	4
Wellesley, MAUnited States	United States	1

Map: places from GeoNames (CC BY 4.0), outlines from Natural Earth.

$1.1bn reported value +15.0% vs Q1 2026

64positions

33.7%in top 10

17 new 23 added 22 reduced 7 sold out vs Q1 2026

Holdings, Q2 2026

The small lines show how much was held over the last 4 quarters (adjusted for stock splits).

#	Security	Ticker	Shares	Value	% of portfolio	Change	Shares change
1	BOX INC NOTE 1.500% 9/1 · principal BOX 1.5 09.15.29 · principal	BOX 1.5 09.15.29	49,546,000	$47.0m4.29%	4.29%	Reduced -1.6m	-1,635,000 -3.2%
2	ITRON INC NOTE 1.375% 7/1 · principal ITRI 1.375 07.15.30 · principal	ITRI 1.375 07.15.30	44,985,000	$42.7m3.90%	3.90%	Added +9.0m	+8,990,000 25.0%
3	BLACKLINE INC NOTE 1.000% 6/0 · principal BL 1 06.01.29 · principal	BL 1 06.01.29	42,867,000	$39.8m3.63%	3.63%	Added +5.9m	+5,945,000 16.1%
4	LIVANOVA PLC NOTE 2.500% 3/1 · principal LIVN 2.5 03.15.29 · principal	LIVN 2.5 03.15.29	31,146,000	$39.0m3.56%	3.56%	Added +3.5m	+3,543,000 12.8%
5	AEROVIRONMENT INC NOTE 7/1 · principal AVAV 0 07.15.30 · principal	AVAV 0 07.15.30	39,025,000	$37.6m3.43%	3.43%	Added +31.1m	+31,109,000 393.0%
6	HAEMONETICS CORP MASS NOTE 2.500% 6/0 · principal HAE 2.5 06.01.29 · principal	HAE 2.5 06.01.29	37,883,000	$36.6m3.34%	3.34%	Reduced -370.0k	-370,000 -1.0%
7	MERITAGE HOMES CORP NOTE 1.750% 5/1 · principal MTH 1.75 05.15.28 · principal	MTH 1.75 05.15.28	32,281,000	$33.2m3.03%	3.03%	Reduced -1.7m	-1,691,000 -5.0%
8	PG&E CORP NOTE 4.250%12/0 · principal PCG 4.25 12.01.27 · principal	PCG 4.25 12.01.27	32,230,000	$32.8m3.00%	3.00%	Reduced -1.9m	-1,855,000 -5.4%
9	GREENBRIER COS INC NOTE 2.875% 4/1 · principal GBX 2.875 04.15.28 · principal	GBX 2.875 04.15.28	26,998,000	$30.6m2.80%	2.80%	Reduced -1.5m	-1,471,000 -5.2%
10	SOUTHERN CO NOTE 3.250% 6/1 · principal SO 3.25 06.15.28 · principal	SO 3.25 06.15.28	30,127,000	$30.2m2.76%	2.76%	New
11	DOORDASH INC NOTE 5/1 · principal DASH 0 05.15.30 · principal	DASH 0 05.15.30	31,902,000	$30.0m2.74%	2.74%	New
12	PARSONS CORP DEL NOTE 2.625% 3/0 · principal PSN 2.625 03.01.29 · principal	PSN 2.625 03.01.29	30,098,000	$29.9m2.73%	2.73%	Added +413.0k	+413,000 1.4%
13	MICROCHIP TECHNOLOGY INC. NOTE 0.750% 6/0 · principal MCHP 0.75 06.01.30 · principal	MCHP 0.75 06.01.30	27,068,000	$29.5m2.70%	2.70%	Reduced -801.0k	-801,000 -2.9%
14	GUIDEWIRE SOFTWARE INC NOTE 1.250%11/0 · principal GWRE 1.25 11.01.29 · principal	GWRE 1.25 11.01.29	31,894,000	$29.0m2.65%	2.65%	Reduced -340.0k	-340,000 -1.1%
15	GLOBAL PMTS INC NOTE 1.500% 3/0 · principal GPN 1.5 03.01.31 · principal	GPN 1.5 03.01.31	29,583,000	$26.8m2.45%	2.45%	Reduced -2.5m	-2,530,000 -7.9%
16	DROPBOX INC NOTE 3/0 · principal DBX 0 03.01.28 · principal	DBX 0 03.01.28	28,266,000	$26.8m2.45%	2.45%	Added +5.9m	+5,869,000 26.2%
17	TRAVERE THERAPEUTICS INC NOTE 0.500% 5/1 · principal TVTX 0.5 05.15.32 · principal	TVTX 0.5 05.15.32	23,551,000	$26.3m2.40%	2.40%	New
18	MERIT MED SYS INC NOTE 3.000% 2/0 · principal MMSI 3 02.01.29 · principal	MMSI 3 02.01.29	25,627,000	$26.1m2.38%	2.38%	New
19	ENVISTA HOLDINGS CORPORATION NOTE 1.750% 8/1 · principal NVST 1.75 08.15.28 · principal	NVST 1.75 08.15.28	25,263,000	$25.3m2.31%	2.31%	Reduced -156.0k	-156,000 -0.6%
20	REPLIGEN CORP NOTE 1.000%12/1 · principal RGEN 1 12.15.28 · principal	RGEN 1 12.15.28	25,587,000	$24.5m2.24%	2.24%	Added +1.1m	+1,106,000 4.5%
21	WINNEBAGO INDS INC NOTE 3.250% 1/1 · principal WGO 3.25 01.15.30 · principal	WGO 3.25 01.15.30	24,881,000	$23.4m2.14%	2.14%	Reduced -1.6m	-1,636,000 -6.2%
22	SYNAPTICS INC NOTE 0.750%12/0 · principal SYNA 0.75 12.01.31 · principal	SYNA 0.75 12.01.31	15,386,000	$23.1m2.11%	2.11%	Reduced -18.9m	-18,939,000 -55.2%
23	AKAMAI TECHNOLOGIES INC NOTE 0.375% 9/0 · principal AKAM 0.375 09.01.27 · principal	AKAM 0.375 09.01.27	19,682,000	$23.1m2.11%	2.11%	Reduced -9.3m	-9,323,000 -32.1%
24	DATADOG INC NOTE 12/0 · principal DDOG 0 12.01.29 · principal	DDOG 0 12.01.29	16,021,000	$23.0m2.10%	2.10%	Reduced -14.3m	-14,284,000 -47.1%
25	EEFT 0.625 10/01/30 CVT 10/1/2030 · principal 10/1/2030 · principal		27,000,000	$22.7m2.07%	2.07%	New
26	LEMAITRE VASCULAR INC NOTE 2.500% 2/0 · principal LMAT 2.5 02.01.30 · principal	LMAT 2.5 02.01.30	20,558,000	$21.1m1.92%	1.92%	Added +723.0k	+723,000 3.6%
27	PROGRESS SOFTWARE CORP NOTE 3.500% 3/0 · principal PRGS 3.5 03.01.30 · principal	PRGS 3.5 03.01.30	21,041,000	$20.9m1.91%	1.91%	Reduced -5.0m	-4,980,000 -19.1%
28	CMS ENERGY CORP NOTE 3.375% 5/0 · principal CMS 3.375 05.01.28 · principal	CMS 3.375 05.01.28	20,500,000	$20.7m1.89%	1.89%	Added +7.1m	+7,110,000 53.1%
29	OMNICELL COM NOTE 1.000%12/0 · principal OMCL 1 12.01.29 · principal	OMCL 1 12.01.29	20,766,000	$20.6m1.88%	1.88%	Added +1.6m	+1,640,000 8.6%
30	INTEGER HLDGS CORP DBCV 1.875% 3/1 · principal ITGR 1.875 03.15.30 · principal	ITGR 1.875 03.15.30	21,186,000	$20.5m1.87%	1.87%	New
31	LANTHEUS HLDGS INC NOTE 2.625%12/1 · principal LNTH 2.625 12.15.27 · principal	LNTH 2.625 12.15.27	11,876,000	$17.1m1.56%	1.56%	Reduced -2.6m	-2,561,000 -17.7%
32	JD.COM INC NOTE 0.250% 6/0 · principal JD 0.25 06.01.29 · principal	JD 0.25 06.01.29	17,185,000	$17.0m1.56%	1.56%	New
33	NUTANIX INC NOTE 0.500%12/1 · principal NTNX 0.5 12.15.29 · principal	NTNX 0.5 12.15.29	16,171,000	$16.0m1.46%	1.46%	Added +12.2m	+12,171,000 304.3%
34	ON SEMICONDUCTOR CORP NOTE 0.500% 3/0 · principal ON 0.5 03.01.29 · principal	ON 0.5 03.01.29	12,961,000	$15.7m1.43%	1.43%	Reduced -19.6m	-19,634,000 -60.2%
35	TETRA TECH INC NEW DBCV 2.250% 8/1 · principal TTEK 2.25 08.15.28 · principal	TTEK 2.25 08.15.28	15,782,000	$14.6m1.33%	1.33%	Added +10.9m	+10,898,000 223.1%
36	LYFT INC NOTE 0.625% 3/0 · principal LYFT 0.625 03.01.29 · principal	LYFT 0.625 03.01.29	9,900,000	$10.4m0.95%	0.95%	Reduced -9.5m	-9,520,000 -49.0%
37	JAZZ INVESTMENTS I LTD NOTE 3.125% 9/1 · principal JAZZ 3.125 09.15.30 · principal	JAZZ 3.125 09.15.30	7,500,000	$10.1m0.93%	0.93%	Added +2.0m	+2,000,000 36.4%
38	WORLD KINECT CORPORATION NOTE 3.250% 7/0 · principal WKC 3.25 07.01.28 · principal	WKC 3.25 07.01.28	9,170,000	$10.0m0.91%	0.91%	Added +2.0m	+1,996,000 27.8%
39	LIVE NATION ENTERTAINMENT IN NOTE 2.875% 1/1 · principal LYV 2.875 01.15.30 · principal	LYV 2.875 01.15.30	8,690,000	$9.8m0.90%	0.90%	Added +4.1m	+4,090,000 88.9%
40	PPL CAP FDG INC NOTE 2.875% 3/1 · principal PPL 2.875 03.15.28 · principal	PPL 2.875 03.15.28	8,480,000	$9.5m0.87%	0.87%	Reduced -769.0k	-769,000 -8.3%
41	BIOMARIN PHARMACEUTICAL INC NOTE 1.250% 5/1 · principal BMRN 1.25 05.15.27 · principal	BMRN 1.25 05.15.27	9,624,000	$9.4m0.86%	0.86%	Added +5.6m	+5,609,000 139.7%
42	CHEESECAKE FACTORY INC NOTE 2.000% 3/1 · principal CAKE 2 03.15.30 · principal	CAKE 2 03.15.30	9,000,000	$8.9m0.81%	0.81%	Added +3.0m	+3,000,000 50.0%
43	FLUOR CORP NOTE 1.125% 8/1 · principal FLR 1.125 08.15.29 · principal	FLR 1.125 08.15.29	7,645,000	$8.0m0.73%	0.73%	Added +3.5m	+3,450,000 82.2%
44	LCI INDS NOTE 3.000% 3/0 · principal LCII 3 03.01.30 · principal	LCII 3 03.01.30	7,200,000	$8.0m0.73%	0.73%	Reduced -1.0m	-1,000,000 -12.2%
45	AMPHASTAR PHARMACEUTICALS IN NOTE 2.000% 3/1 · principal AMPH 2 03.15.29 · principal	AMPH 2 03.15.29	8,460,000	$7.7m0.70%	0.70%	Reduced -17.6m	-17,566,000 -67.5%
46	PACIRA BIOSCIENCES INC NOTE 2.125% 5/1 · principal PCRX 2.125 05.15.29 · principal	PCRX 2.125 05.15.29	7,522,000	$7.5m0.69%	0.69%	Added +303.0k	+303,000 4.2%
47	ETSY INC NOTE 1.000% 6/1 · principal ETSY 1 06.15.30 · principal	ETSY 1 06.15.30	7,735,000	$7.1m0.65%	0.65%	New
48	COGENT BIOSCIENCES INC NOTE 1.625%11/1 · principal COGT 1.625 11.15.31 · principal	COGT 1.625 11.15.31	7,250,000	$6.5m0.59%	0.59%	Added +2.6m	+2,625,000 56.8%
49	ALLIANT ENERGY CORP NOTE 3.250% 5/3 · principal LNT 3.25 05.30.28 · principal	LNT 3.25 05.30.28	6,500,000	$5.5m0.50%	0.50%	New
50	ALARM COM HLDGS INC NOTE 2.250% 6/0 · principal ALRM 2.25 06.01.29 · principal	ALRM 2.25 06.01.29	5,626,000	$5.4m0.49%	0.49%	Reduced -23.0k	-23,000 -0.4%
51	COLLEGIUM PHARMACEUTICAL INC NOTE 2.875% 2/1 · principal COLL 2.875 02.15.29 · principal	COLL 2.875 02.15.29	5,725,000	$4.6m0.42%	0.42%	Added +1.6m	+1,600,000 38.8%
52	POST HLDGS INC NOTE 2.500% 8/1 · principal POST 2.5 08.15.27 · principal	POST 2.5 08.15.27	5,750,000	$4.5m0.41%	0.41%	Added +1.8m	+1,750,000 43.8%
53	SOUTHERN CO NOTE 4.500% 6/1 · principal SO 4.5 06.15.27 · principal	SO 4.5 06.15.27	4,500,000	$4.4m0.40%	0.40%	Unchanged
54	CELCUITY INC NOTE 0.250% 8/0 · principal CELC 0.25 08.01.32 · principal	CELC 0.25 08.01.32	3,500,000	$3.2m0.29%	0.29%	New
55	REVOLUTION MEDICINES INC NOTE 0.500% 5/0 · principal RVMD 0.5 05.01.33 · principal	RVMD 0.5 05.01.33	2,570,000	$2.9m0.26%	0.26%	New
56	NUVATION BIO INC NOTE 0.750% 7/0 · principal NUVB 0.75 07.01.32 · principal	NUVB 0.75 07.01.32	3,500,000	$2.7m0.25%	0.25%	New
57	IMMUNOCORE HLDGS PLC NOTE 2.500% 2/0 · principal IMCR 2.5 02.01.30 · principal	IMCR 2.5 02.01.30	4,150,000	$2.2m0.20%	0.20%	Unchanged
58	AKAMAI TECHNOLOGIES INC NOTE 1.125% 2/1 · principal AKAM 1.125 02.15.29 · principal	AKAM 1.125 02.15.29	1,594,000	$1.9m0.17%	0.17%	Reduced -15.6m	-15,556,000 -90.7%
59	BRIDGEBIO PHARMA INC NOTE 1.750% 3/0 · principal BBIO 1.75 03.01.31 · principal	BBIO 1.75 03.01.31	275,000	$463.1k0.04%	0.04%	Added +150.0k	+150,000 120.0%
60	UBER TECHNOLOGIES INC NOTE 0.875%12/0 · principal UBER 0.875 12.01.28 2028 · principal	UBER 0.875 12.01.28 2028	375,000	$450.9k0.04%	0.04%	New
61	ANI PHARMACEUTICALS INC NOTE 2.250% 9/0 · principal ANIP 2.25 09.01.29 · principal	ANIP 2.25 09.01.29	250,000	$325.4k0.03%	0.03%	New
62	LIBERTY MEDIA CORP DEL NOTE 2.250% 8/1 · principal FWONK 2.25 08.15.27 · principal	FWONK 2.25 08.15.27	250,000	$316.3k0.03%	0.03%	New
63	CYBERARK SOFTWARE LTD NOTE 6/1 · principal CYBR 0 06.15.30 · principal	CYBR 0 06.15.30	175,000	$298.9k0.03%	0.03%	New
64	TRANSMEDICS GROUP INC NOTE 1.500% 6/0 · principal TMDX 1.5 06.01.28 · principal	TMDX 1.5 06.01.28	250,000	$274.0k0.03%	0.03%	New

Sold out since Q1 2026

Security	Ticker	Shares held before	Value then
VISHAY INTERTECHNOLOGY INC VSH 2.25 09.15.30	VSH 2.25 09.15.30	41,311,000	$39.6m41.3m shares
SHIFT4 PMTS INC FOUR 0.5 08.01.27	FOUR 0.5 08.01.27	31,386,000	$29.5m31.4m shares
SPECTRUM BRANDS INC SPB 3.375 06.01.29	SPB 3.375 06.01.29	9,290,000	$9.2m9.3m shares
ARRAY TECHNOLOGIES INC ARRY 1 12.01.28	ARRY 1 12.01.28	7,369,000	$6.7m7.4m shares
CENTERPOINT ENERGY INC CNP 4.25 08.15.26	CNP 4.25 08.15.26	3,662,000	$4.3m3.7m shares
WEC ENERGY GROUP INC WEC 4.375 06.01.27	WEC 4.375 06.01.27	3,000,000	$1.8m3.0m shares
BRIDGEBIO PHARMA INC BBIO 2.25 02.01.29	BBIO 2.25 02.01.29	210,000	$237.1k210.0k shares