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Super Investors Wellesley Asset Management
WA

Wellesley Asset Management

Quarterly 13F snapshot: US-listed longs only, no performance figures — 13F data cannot support them.

Portfolio value
$1.1B
Positions
64
Quarter ended
June 30, 2026
Filed
August 13, 2026

Reported portfolio value by quarter (54 quarters reported)

$2.01B $1.48M
Q1 13 Q4 15 Q3 18 Q2 21 Q1 24 Q2 26

$1.17B in Q1 2013 → $1.1B now. Hover for any quarter.

Holdings

As reported for the quarter ended June 30, 2026. Activity is the change in share count since the prior quarter's filing.

Holding % of portfolio Activity Shares Value
BU Box Us 4.3% Trimmed 3.2% 49,546,000 $47M
IU Itri Us 3.9% Added 25% 44,985,000 $42.7M
BU Bl Us 3.6% Added 16% 42,867,000 $39.8M
LU Livn Us 3.6% Added 13% 31,146,000 $39M
AU Avav Us 3.4% Added 393% 39,025,000 $37.6M
HU Hae Us 3.3% Trimmed 1.0% 37,883,000 $36.6M
MU Mth Us 3.0% Trimmed 5.0% 32,281,000 $33.2M
PU Pcg Us 3.0% Trimmed 5.4% 32,230,000 $32.8M
GU Gbx Us 2.8% Trimmed 5.2% 26,998,000 $30.6M
SU So Us 2.8% New 30,127,000 $30.2M
DU Dash Us 2.7% New 31,902,000 $30M
PU Psn Us 2.7% Added 1.4% 30,098,000 $29.9M
MU Mchp Us 2.7% Trimmed 2.9% 27,068,000 $29.5M
GU Gwre Us 2.6% Trimmed 1.1% 31,894,000 $29M
GU Gpn Us 2.4% Trimmed 7.9% 29,583,000 $26.8M
DU Dbx Us 2.4% Added 26% 28,266,000 $26.8M
TU Tvtx Us 2.4% New 23,551,000 $26.3M
MU Mmsi Us 2.4% New 25,627,000 $26.1M
NU Nvst Us 2.3% Trimmed 0.6% 25,263,000 $25.3M
RU Rgen Us 2.2% Added 4.5% 25,587,000 $24.5M
WU Wgo Us 2.1% Trimmed 6.2% 24,881,000 $23.4M
SU Syna Us 2.1% Trimmed 55% 15,386,000 $23.1M
AU Akam Us 2.1% Trimmed 32% 19,682,000 $23.1M
DU Ddog Us 2.1% Trimmed 47% 16,021,000 $23M
EU Eeft Us 2.1% New 27,000,000 $22.7M
LU Lmat Us 1.9% Added 3.6% 20,558,000 $21.1M
PU Prgs Us 1.9% Trimmed 19% 21,041,000 $20.9M
CU Cms Us 1.9% Added 53% 20,500,000 $20.7M
OU Omcl Us 1.9% Added 8.6% 20,766,000 $20.6M
IU Itgr Us 1.9% New 21,186,000 $20.5M
LU Lnth Us 1.6% Trimmed 18% 11,876,000 $17.1M
JU Jd Us 1.6% New 17,185,000 $17M
NU Ntnx Us 1.5% Added 304% 16,171,000 $16M
OU On Us 1.4% Trimmed 60% 12,961,000 $15.7M
TU Ttek Us 1.3% Added 223% 15,782,000 $14.6M
LU Lyft Us 1.0% Trimmed 49% 9,900,000 $10.4M
JU Jazz Us 0.9% Added 36% 7,500,000 $10.1M
WU Wkc Us 0.9% Added 28% 9,170,000 $10M
LU Lyv Us 0.9% Added 89% 8,690,000 $9.84M
PU Ppl Us 0.9% Trimmed 8.3% 8,480,000 $9.51M
BU Bmrn Us 0.9% Added 140% 9,624,000 $9.37M
CU Cake Us 0.8% Added 50% 9,000,000 $8.91M
FU Flr Us 0.7% Added 82% 7,645,000 $7.96M
LU Lcii Us 0.7% Trimmed 12% 7,200,000 $7.95M
AU Amph Us 0.7% Trimmed 67% 8,460,000 $7.69M
PU Pcrx Us 0.7% Added 4.2% 7,522,000 $7.53M
EU Etsy Us 0.7% New 7,735,000 $7.12M
CU Cogt Us 0.6% Added 57% 7,250,000 $6.47M
LU Lnt Us 0.5% New 6,500,000 $5.46M
AU Alrm Us 0.5% Trimmed 0.4% 5,626,000 $5.38M
CU Coll Us 0.4% Added 39% 5,725,000 $4.57M
PU Post Us 0.4% Added 44% 5,750,000 $4.45M
SU So Us 0.4% Unchanged 4,500,000 $4.4M
CU Celc Us 0.3% New 3,500,000 $3.18M
RU Rvmd Us 0.3% New 2,570,000 $2.86M
NU Nuvb Us 0.2% New 3,500,000 $2.69M
IU Imcr Us 0.2% Unchanged 4,150,000 $2.2M
AU Akam Us 0.2% Trimmed 91% 1,594,000 $1.86M
BU Bbio Us 0.0% Added 120% 275,000 $463K
UU Uber Us 0.0% New 375,000 $451K

Showing top 60 of 64 positions.

Timeline of changes

What changed each quarter, from the filings' own share counts. Largest moves first; most recent 8 quarters.

Q2 2026

quarter ended June 30, 2026 · filed August 13, 2026

Company Action Shares changed Value of change % of portfolio
VU Vsh Us Exited −41,311,000 −$39.6M —
SU So Us New +30,127,000 +$30.2M 2.8%
DU Dash Us New +31,902,000 +$30M 2.7%
AU Avav Us Added +31,109,000 +$30M 3.4%
FU Four Us Exited −31,386,000 −$29.5M —
SU Syna Us Trimmed −18,939,000 −$28.4M 2.1%
TU Tvtx Us New +23,551,000 +$26.3M 2.4%
MU Mmsi Us New +25,627,000 +$26.1M 2.4%
OU On Us Trimmed −19,634,000 −$23.8M 1.4%
EU Eeft Us New +27,000,000 +$22.7M 2.1%

Showing the 10 largest of 69 changes.

Q1 2026

quarter ended March 31, 2026 · filed May 11, 2026

Company Action Shares changed Value of change % of portfolio
FU F Us Exited −37,047,000 −$38.7M —
MU Mchp Us New +27,869,000 +$27.7M 2.9%
GU Gwre Us Added +28,234,000 +$26.5M 3.2%
NU Nvst Us New +25,419,000 +$25.4M 2.7%
SU Spot Us Exited −19,002,000 −$21.4M —
JU Jbtm Us Exited −19,653,000 −$20.2M —
LU Lmat Us Added +16,585,000 +$17.7M 2.2%
DU Dbx Us Added +18,392,000 +$16.4M 2.1%
DU Ddog Us Added +14,952,000 +$14.5M 3.1%
LU Lnt Us Exited −12,455,000 −$13M —

Showing the 10 largest of 63 changes.

Q4 2025

quarter ended December 31, 2025 · filed February 06, 2026

Company Action Shares changed Value of change % of portfolio
SU Syna Us New +39,166,000 +$41.7M 4.3%
UU Uber Us Exited −32,878,000 −$39.6M —
IU Itri Us Added +32,381,000 +$33M 3.8%
HU Halo Us Exited −23,374,000 −$27.3M —
BU Bmrn Us Trimmed −22,905,000 −$22M 0.4%
IU Itri Us Exited −20,657,000 −$21.8M —
OU Omcl Us New +16,894,000 +$18.2M 1.9%
DU Dkng Us Exited −20,104,000 −$18M —
LU Lnth Us New +14,769,000 +$16.9M 1.8%
IU Imax Us Exited −13,228,000 −$15.7M —

Showing the 10 largest of 65 changes.

Q3 2025

quarter ended September 30, 2025 · filed October 21, 2025

Company Action Shares changed Value of change % of portfolio
BU Bl Us Added +34,940,000 +$35.7M 3.7%
BU Box Us New +32,055,000 +$32.2M 3.2%
LU Lcii Us Trimmed −29,917,000 −$29.2M 0.1%
AU Awk Us Exited −22,699,000 −$22.9M —
AU Akam Us Trimmed −23,694,000 −$22.7M 3.0%
BU Bmrn Us Trimmed −23,661,000 −$22.5M 2.6%
FU F Us Added +20,181,000 +$20.6M 4.4%
RU Rgen Us Added +19,341,000 +$20M 2.5%
FU Four Us New +17,955,000 +$17.6M 1.8%
AU Akam Us Added +18,334,000 +$17.3M 1.8%

Showing the 10 largest of 68 changes.

Q2 2025

quarter ended June 30, 2025 · filed August 05, 2025

Company Action Shares changed Value of change % of portfolio
MU Mth Us New +36,976,000 +$36.6M 3.5%
SU Srpt Us Exited −38,390,000 −$35.7M —
FU F Us Trimmed −24,659,000 −$24.6M 2.2%
SU Spb Us New +23,100,000 +$21M 2.0%
NI Nice It Trimmed −18,999,000 −$18.8M 1.5%
DU Dkng Us New +20,000,000 +$17.9M 1.7%
HU Hae Us New +17,464,000 +$17.5M 1.7%
PU Pcg Us Added +16,468,000 +$16.4M 3.4%
LU Luv Us Exited −13,714,000 −$13.7M —
AU Abnb Us Trimmed −13,926,000 −$13.4M 0.6%

Showing the 10 largest of 72 changes.

Q1 2025

quarter ended March 31, 2025 · filed May 02, 2025

Company Action Shares changed Value of change % of portfolio
SU Srpt Us Added +35,713,000 +$33.2M 3.6%
WU Wgo Us New +34,386,000 +$30.3M 3.0%
LU Lcii Us Trimmed −29,078,000 −$27.8M 3.1%
VU Viav Us Exited −26,061,000 −$26.9M —
LU Lyft Us New +27,243,000 +$26.6M 2.7%
FU Fivn Us New +28,143,000 +$24M 2.4%
PU Psn Us New +21,614,000 +$21.7M 2.2%
AU Awk Us Added +20,452,000 +$21M 2.6%
GU Gpn Us New +22,076,000 +$20.8M 2.1%
LU Livn Us New +20,523,000 +$19.6M 2.0%

Showing the 10 largest of 71 changes.

Q4 2024

quarter ended December 31, 2024 · filed January 27, 2025

Company Action Shares changed Value of change % of portfolio
AU Atsg Us Trimmed −19,725,000 −$19.6M 1.9%
CU Cswc Us New +19,377,000 +$18.9M 2.0%
GU Gwre Us New +17,000,000 +$16.6M 1.7%
LU Lnt Us Trimmed −10,307,000 −$10.6M 2.1%
EU Expe Us New +10,327,000 +$10.3M 1.1%
PU Ppl Us Trimmed −9,667,000 −$10.1M 1.8%
PU Patk Us Trimmed −6,303,000 −$8.59M 0.2%
AU Aeis Us Trimmed −7,261,000 −$7.93M 1.0%
OU Ora Us Trimmed −7,024,000 −$6.95M 0.9%
AU Amph Us Added +7,333,000 +$6.84M 2.8%

Showing the 10 largest of 61 changes.

Q3 2024

quarter ended September 30, 2024 · filed October 23, 2024

Company Action Shares changed Value of change % of portfolio
VU Vsh Us New +42,116,000 +$38.7M 3.8%
AU Atsg Us New +38,212,000 +$35.9M 3.5%
PU Petq Us Exited −29,094,000 −$31.1M —
CU Cake Us Exited −25,697,961 −$23.5M —
AU Amph Us New +22,080,000 +$23.4M 2.3%
CU Cnp Us New +21,682,000 +$22M 2.1%
VU Vsh Us Exited −22,044,880 −$21M —
WU Wkc Us New +16,020,000 +$19.5M 1.9%
AU Aeis Us New +16,249,000 +$17.2M 1.7%
FU Flr Us New +13,880,000 +$17M 1.7%

Showing the 10 largest of 59 changes.

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