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MAYPORT, LLC — 13F Holdings & Portfolio

CIK 1922875 · latest 13F-HR filed 2026-08-07

Backtest portfolio

MAYPORT, LLC manages $644.8M in 13F-reported U.S. long-equity assets across 134 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are VOO (23.26%), VGSH (11.56%), VEA (7.98%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 12 new positions and exited 8; 88 existing positions rose in reported value and 16 fell.

AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.

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AUM
$644.8M

Long-equity book

Holdings
134

Distinct positions

Period
2026-06-30

Filed 2026-08-07

Q/Q Activity
+12 / −8 / ↑88 / ↓16

vs 2026-03-31

Portfolio charts

Latest quarter's book, what changed, and how the portfolio has evolved across filings.

Portfolio map

Q2 26
VOO23.3% · +5%VGSH11.6% · +6%VEA8.0% · +9%VXF7.3% · +5%VTI6.2% · +15%FRDM3.5% · +4%VGIT3.3% · +9%VTIP3.3% · +6%VTV2.4% · +2%SPY2.4% · +244%VBR1.9% · +3%SHV1.8% · 0%VV1.6% · -0%AAPL1.5% · +0%IVV1.2% · +20%VXUS1.1% · +10%VTES1.0% · +3%VB0.9% · +11%META0.8% · -1%NVDA0.7% · +40%ISHG0.7% · 0%IWF0.6% · +300%MSFT0.6% · +21%VO0.6% · +300%VUG0.5% · +2096%GOOGL0.4% · +11%IEFA0.4% · 0%ESGV0.4% · -2%VSGX0.4% · -6%AMZN0.4% · -2%IJR0.4% · -1%VWO0.4% · +5%VEU0.3% · +1%IWD0.3% · 0%VT0.3% · +3%NUBD0.3% · 0%BRK.B0.3% · +19%QQQ0.3% · +24%SUB0.3% · 0%ABBV0.3% · -0%GOOG0.3% · -4%JPM0.2% · -0%VYM0.2% · -0%ITOT0.2% · 0%LRCX0.2% · -6%TRNO0.2% · -33%VIG0.2% · -1%LLY0.2% · -1%IXUS0.2% · 0%DFAU0.2% · 0%MDY0.2% · newAIZ0.2% · 0%IWB0.1% · 0%SGOV0.1% · +59%AVUS0.1% · 0%IVE0.1% · +0%VNQ0.1% · +0%DFAC0.1% · +5%TSLA0.1% · +1%CSCO0.1% · -1%

Box size = position value; colour = change in share count vs the prior quarter (green added, red trimmed, blue new). Rows split across managers or share classes are combined. Click a box for the stock.

Sector mix

% of 13F value

Sectors from each company's SIC code; funds and ETFs grouped separately.

Biggest buys and sells

Q1 26 → Q2 26

Estimated from the change in shares held × the quarter-end price, so price moves alone don't count as buying. New and exited positions are included.

13F assets and positions

3 quarters

Total reported 13F value (bars) and number of positions (line) each quarter. Value changes include market moves.

Top positions over time

reported value

The eight largest current positions, valued at each quarter end.

Concentration

top 10 = 71.2%

Cumulative share of the portfolio held in the largest N positions.

Firm Profile & Key People

As of the firm’s regulatory filing dated Mar 10, 2026.

Assets Under Management
$694.9M
Discretionary
$671.8M
Employees
3
Accounts
756
Phone
(617) 545-5700
Website
Name Title / Status Ownership Type
GROSSMAN, ADAM, M ControlFOUNDER AND CHIEF COMPLIANCE OFFICER
since Mar 2017
75% or moreIndividual

Quarter-over-quarter changes

Changes in reported position value vs the prior 13F, so price moves count too, not just shares bought or sold.

Top Adds (vs prior quarter)

Show all 88 →

Top Trims

Show all 16 →

New Positions

Show all 12 →

Exited Positions

Show all 8 →

MAYPORT, LLC Holdings (2026-06-30)

Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).

# Issuer Symbol CUSIP Value Weight Shares Type
1 VANGUARD INDEX FDS VOO 922908363 $150.0M 23.26% 218,387 SH
2 VANGUARD SCOTTSDALE FDS VGSH 92206C102 $74.6M 11.56% 1,281,135 SH
3 VANGUARD TAX-MANAGED FDS VEA 921943858 $51.4M 7.98% 721,836 SH
4 VANGUARD INDEX FDS VXF 922908652 $47.4M 7.35% 192,454 SH
5 VANGUARD INDEX FDS VTI 922908769 $40.2M 6.23% 108,519 SH
6 EA SERIES TRUST FRDM 02072L607 $22.4M 3.47% 306,597 SH
7 VANGUARD SCOTTSDALE FDS VGIT 92206C706 $21.3M 3.31% 361,424 SH
8 VANGUARD MALVERN FDS VTIP 922020805 $21.1M 3.27% 420,360 SH
9 VANGUARD INDEX FDS VTV 922908744 $15.8M 2.45% 72,444 SH
10 STATE STR SPDR S&P 500 ETF T SPY 78462F103 $15.3M 2.37% 20,483 SH
11 VANGUARD INDEX FDS VBR 922908611 $12.1M 1.87% 49,609 SH
12 ISHARES TR SHV 464288679 $11.6M 1.80% 105,261 SH
13 VANGUARD INDEX FDS VV 922908637 $10.3M 1.60% 29,933 SH
14 APPLE INC AAPL 037833100 $9.5M 1.48% 32,951 SH
15 ISHARES TR IVV 464287200 $7.6M 1.18% 10,195 SH
16 VANGUARD STAR FDS VXUS 921909768 $6.8M 1.06% 79,824 SH
17 VANGUARD WELLINGTON FD VTES 921935870 $6.5M 1.00% 63,855 SH
18 VANGUARD INDEX FDS VB 922908751 $5.5M 0.86% 18,285 SH
19 META PLATFORMS INC META 30303M102 $5.0M 0.78% 8,882 SH
20 NVIDIA CORPORATION NVDA 67066G104 $4.8M 0.75% 24,116 SH
21 ISHARES TR ISHG 464288125 $4.4M 0.69% 59,894 SH
22 ISHARES TR IWF 464287614 $4.0M 0.63% 32,560 SH
23 MICROSOFT CORP MSFT 594918104 $3.9M 0.61% 10,509 SH
24 VANGUARD INDEX FDS VO 922908629 $3.6M 0.56% 45,107 SH
25 VANGUARD INDEX FDS VUG 922908736 $2.9M 0.45% 33,859 SH
26 ALPHABET INC GOOGL 02079K305 $2.8M 0.44% 7,878 SH
27 ISHARES TR IEFA 46432F842 $2.7M 0.43% 28,455 SH
28 VANGUARD WORLD FD ESGV 921910733 $2.6M 0.41% 19,942 SH
29 VANGUARD WORLD FD VSGX 921910725 $2.6M 0.40% 31,430 SH
30 AMAZON COM INC AMZN 023135106 $2.6M 0.40% 10,757 SH
31 ISHARES TR IJR 464287804 $2.4M 0.37% 16,248 SH
32 VANGUARD INTL EQUITY INDEX F VWO 922042858 $2.3M 0.36% 39,003 SH
33 VANGUARD INTL EQUITY INDEX F VEU 922042775 $2.2M 0.34% 26,381 SH
34 ISHARES TR IWD 464287598 $2.2M 0.33% 8,910 SH
35 VANGUARD INTL EQUITY INDEX F VT 922042742 $2.1M 0.32% 13,281 SH
36 NUSHARES ETF TR NUBD 67092P870 $2.1M 0.32% 94,104 SH
37 BERKSHIRE HATHAWAY INC DEL BRK.B 084670702 $2.1M 0.32% 4,118 SH
38 INVESCO QQQ TR QQQ 46090E103 $1.9M 0.30% 2,587 SH
39 ISHARES TR SUB 464288158 $1.9M 0.29% 17,478 SH
40 ABBVIE INC ABBV 00287Y109 $1.8M 0.28% 7,247 SH
41 ALPHABET INC GOOG 02079K107 $1.7M 0.26% 4,831 SH
42 JPMORGAN CHASE & CO JPM 46625H100 $1.6M 0.24% 4,747 SH
43 VANGUARD WHITEHALL FDS VYM 921946406 $1.5M 0.23% 9,254 SH
44 ISHARES TR ITOT 464287150 $1.5M 0.22% 8,827 SH
45 LAM RESEARCH CORP LRCX 512807306 $1.2M 0.19% 2,871 SH
46 TERRENO RLTY CORP TRNO 88146M101 $1.2M 0.19% 19,145 SH
47 VANGUARD SPECIALIZED FUNDS VIG 921908844 $1.2M 0.19% 5,183 SH
48 ELI LILLY & CO LLY 532457108 $1.2M 0.18% 993 SH
49 ISHARES TR IXUS 46432F834 $1.1M 0.18% 11,908 SH
50 DIMENSIONAL ETF TRUST DFAU 25434V104 $1.1M 0.17% 21,667 SH
Filing History
Period Filed AUM Holdings Accession
2026-06-30 2026-08-07 $644.8M 134 0001951757-26-001170
2026-03-31 2026-04-21 $538.0M 130 0001951757-26-000661
2025-12-31 2026-01-21 $496.4M 112 0001951757-26-000254
Filer Information
Address
300 WASHINGTON STREET
SUITE 814
NEWTON, MA 02458
Phone
(617) 545-5700
Filing Manager
MAYPORT, LLC
NEWTON, MA
Signatory
Adam Grossman
Chief Compliance Officer