Q3 2026 13F · SEC CIK 1812178

Jackson Square Capital, LLC

Wealth managerFiled 2026-10-19 for Q3 2026. Open the filing ↗ · All SEC filings ↗

Reported 13F value: $664.2M
Reported positions: 143
Top holdings a year, 3 yrs: +37.2%
Assets under management: $564.3M

Jackson Square Capital, LLC is a wealth manager that reported 143 positions worth $664.2M in its Q3 2026 13F, filed 2026-10-19. Its largest holdings were Micron Technology Inc (MU, 12.6%), Nvidia Corporation (NVDA, 6.7%), Apple Inc (AAPL, 6.3%). A portfolio copying its top holdings returned 37.2% a year over the last 3 years, against 22.3% for the S&P 500.

Jackson Square Capital, LLC holdings largest 50 of 143 positions.

Weights are shares of the filer's total reported 13F value, compared with Q2 2026. Share changes may reflect splits; weight changes also reflect price moves. A 13F shows long US-listed positions only, up to 135 days after the fact.

Jackson Square Capital, LLC 13F holdings
Stock	% of 13F value	Q2 2026	Shares	Share change	Reported value
MUMicron Technology Inc	12.6%	14.6%	78,705	-13.4%	$83.8M
NVDANvidia Corporation	6.7%	5.8%	194,787	-7.3%	$44.5M
AAPLApple Inc	6.3%	4.7%	125,045	+8.0%	$41.6M
GOOGLAlphabet Inc	5.0%	4.3%	95,909	+12.0%	$33.0M
MSFTMicrosoft Corp	4.1%	2.3%	52,501	+17.9%	$26.9M
AVGOBroadcom Inc	3.7%	3.9%	69,785	-6.5%	$24.5M
LLYEli Lilly & Co	3.3%	3.1%	18,782	-0.5%	$21.7M
AMZNAmazon Com Inc	3.2%	2.8%	84,951	+2.0%	$21.2M
LITELumentum Hldgs Inc	2.7%	2.9%	18,798	-23.2%	$18.3M
ANETArista Networks Inc	2.4%	1.9%	79,786	-0.3%	$16.2M
COHRCoherent Corp	2.3%	3.5%	53,021	-17.2%	$15.3M
PANWPalo Alto Networks Inc	2.2%	1.7%	36,549	-0.7%	$14.5M
LRCXLam Research Corp	2.0%	2.5%	40,805	-1.5%	$13.4M
KLACKla Corp	2.0%	2.9%	68,634	+0.1%	$13.4M
CSCOCisco Sys Inc	1.9%	2.1%	120,083	-5.1%	$12.9M
CATCaterpillar Inc	1.7%	2.3%	14,017	-9.8%	$11.4M
CRWDCrowdstrike Hldgs Inc	1.7%	0.8%	42,548	+433.6%	$11.3M
AMATApplied Matls Inc	1.4%	1.7%	18,205	+8.0%	$9.3M
SPYState Str Spdr S&p 500 ETF T	1.4%	1.3%	12,152	+0.3%	$9.3M
APHAmphenol Corp	1.4%	0.5%	109,779	+466.9%	$9.3M
DELLDell Technologies Inc	1.4%	0.9%	17,115	+15.1%	$9.2M
BRK-BBerkshire Hathaway Inc Del	1.4%	1.3%	18,356	+0.1%	$9.1M
ARMArm Holdings PLC	1.2%	1.4%	27,863	-1.3%	$8.1M
GOOGAlphabet Inc	1.2%	1.0%	22,820	+11.4%	$7.8M
VRTVertiv Holdings Co	1.2%	2.1%	31,699	-30.7%	$7.6M
ASMLAsml Hldg NV	1.1%	0.7%	4,165	+62.4%	$7.5M
NETCloudflare Inc	1.0%	0.6%	18,768	-0.6%	$6.5M
DHRDanaher Corp Del	1.0%	—	28,981	—	$6.4M
AZNAstrazeneca PLC	0.9%	—	38,184	—	$6.2M
GEVGe Vernova Inc	0.8%	1.5%	5,736	-38.9%	$5.5M
MRKMerck & Co Inc	0.8%	0.6%	36,297	+4.6%	$5.3M
GLDSpdr Gold Tr	0.6%	—	10,958	—	$4.2M
QQQMInvesco Exch Traded Fd Tr II	0.6%	0.6%	13,692	+0.4%	$4.2M
GEGe Aerospace	0.6%	0.6%	13,242	+11.2%	$4.1M
TWLOTwilio Inc	0.6%	—	13,554	—	$4.0M
IBITIshares Bitcoin Trust ETF	0.6%	—	82,516	—	$3.9M
TSMTaiwan Semiconductor Manufac	0.6%	0.6%	8,490	+2.1%	$3.9M
ABBVAbbvie Inc	0.6%	0.5%	14,543	-0.2%	$3.8M
AMDAdvanced Micro Devices Inc	0.6%	—	6,158	—	$3.8M
COSTCostco Wholesale Corporation	0.6%	0.9%	4,133	-40.2%	$3.8M
CDNSCadence Design System Inc	0.5%	1.2%	10,934	-50.6%	$3.6M
WATWaters Corp	0.5%	—	7,760	—	$3.4M
AAgilent Technologies Inc	0.5%	—	19,515	—	$3.4M
ADIAnalog Devices Inc	0.5%	—	7,567	—	$3.0M
TMOThermo Fisher Scientific Inc	0.4%	—	4,421	—	$3.0M
XLKSelect Sector Spdr Tr	0.4%	—	14,639	—	$2.9M
CVSCvs Health Corp	0.4%	0.6%	32,070	-26.4%	$2.7M
VVisa Inc	0.4%	0.4%	7,587	+0.5%	$2.7M
SPCXSpace Exploration Techn Corp	0.4%	—	17,268	—	$2.6M
BSXBoston Scientific Corp	0.4%	—	55,164	—	$2.4M

What Jackson Square Capital, LLC bought and sold in Q3 2026, against Q2 2026.

New positions

Q2 2026's filing was too long to tell new positions apart.

Share counts compared with the Q2 2026 13F; a split also changes share counts. The latest filing lists more than 50 positions, so a position that left the top 50 may still be held.

How the holdings did against the S&P 500.

1 year: +28.6% /yr; S&P 500 +11.7%
3 years: +37.2% /yr; S&P 500 +22.3%
5 years: +18.4% /yr; S&P 500 +10.6%

A portfolio of the filer's 20 largest 13F positions, weighted by value, bought the trading day after each 13F was filed and held until the next one was: what copying this filer could have earned. 13Fs show long US-listed positions only, so this is an estimate of the stock picks, not the fund's reported returns.

Reported 13F value by quarter.

13F value by quarter
Quarter	13F value	Positions
Q3 2026	$664.2M	143
Q2 2026	$719.0M	138
Q1 2026	$477.0M	129
Q4 2025	$505.5M	152
Q3 2025	$458.5M	144
Q2 2025	$450.2M	144
Q1 2025	$307.6M	132
Q4 2024	$415.0M	141
Q3 2024	$403.0M	133
Q2 2024	$406.4M	126
Q1 2024	$388.4M	137
Q4 2023	$310.8M	116

Questions about Jackson Square Capital, LLC's portfolio

What stocks does Jackson Square Capital, LLC own?

Jackson Square Capital, LLC's latest 13F, for Q3 2026 and filed Oct 19, 2026, lists 143 positions worth $664.2M. The largest are Micron Technology Inc (MU) at 12.6%, Nvidia Corporation (NVDA) at 6.7%, Apple Inc (AAPL) at 6.3%, Alphabet Inc (GOOGL) at 5.0% and Microsoft Corp (MSFT) at 4.1%.

What did Jackson Square Capital, LLC buy last quarter?

In Q3 2026, Jackson Square Capital, LLC added Amphenol Corp (APH) (+466.9% shares), Crowdstrike Hldgs Inc (CRWD) (+433.6% shares) and Asml Hldg NV (ASML) (+62.4% shares), compared with its Q2 2026 filing.

What did Jackson Square Capital, LLC sell last quarter?

In Q3 2026, Jackson Square Capital, LLC cut from its top 50 Corning Inc (GLW), cut from its top 50 Linde PLC (LIN), cut from its top 50 Tjx Cos Inc New (TJX), cut from its top 50 Howmet Aerospace Inc (HWM), cut from its top 50 Ishares Tr (ITA), Cadence Design System Inc (CDNS) (-50.6% shares), Costco Wholesale Corporation (COST) (-40.2% shares) and Ge Vernova Inc (GEV) (-38.9% shares), compared with its Q2 2026 filing.

How has Jackson Square Capital, LLC's portfolio performed?

A portfolio copying Jackson Square Capital, LLC's 20 largest 13F holdings each quarter, from the day each filing was public, returned +37.2% a year over the last 3 years, against +22.3% for the S&P 500. Over 1 year: +28.6% against +11.7%. Over 5 years: +18.4% a year against +10.6%.

When is Jackson Square Capital, LLC's next 13F filing due?

13F filings are due 45 days after each quarter ends. Jackson Square Capital, LLC's filing for the quarter ending Dec 31, 2026 is due by Feb 14, 2027; this page updates the day after it is published.

How much money does Jackson Square Capital, LLC manage?

Jackson Square Capital, LLC reported $564.3M of regulatory assets under management on its latest SEC Form ADV. Its 13F, which covers only US-listed stocks and options, totals $664.2M.