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Livermore
Livermore
ZHEN

Custos Family Office, LLC

SEC CIK
0001904423
Latest filing
Aug 19, 2026

The latest 13F from Custos Family Office, LLC covers Q2 2026 (filed Aug 19, 2026): 67 long positions worth $166.4M. The top 10 holdings make up 67.3% of the portfolio, and the largest is iShares Core S&P 500 ETF at 20.0%. Livermore has 19 filings on Form 13F from this institution, going back to Q4 2021.

What changed in Q2 2026

Share counts compared with Q1 2026: how many positions were new, added to, reduced or sold out, and the biggest buys and sells. Dollar amounts are estimated at the quarter-end prices implied by the filing.

Full comparison
New
7
Est. +$2.80M
Added
33
Est. +$5.18M
Reduced
15
Est. −$2.08M
Sold out
3
Est. −$868.0K

Top 5 holdings

Share of this quarter's portfolio value

  1. iShares Core S&P 500 ETF464287200
    20.0%$33.3M
  2. Vanguard Ftse Emerging Markets ETF922042858
    8.2%$13.7M
  3. iShares Core Dividend Growth ETF46434V621
    5.9%$9.86M
  4. Fidelity Covington Trust316092782
    5.8%$9.59M
  5. iShares Core MSCI Eafe ETF46432F842
    5.5%$9.21M

Share of portfolio

Top 5 holdings and the other 62 positions, by share of portfolio value

  1. iShares Core S&P 500 ETF20.0%
  2. Vanguard Ftse Emerging Markets ETF8.2%
  3. iShares Core Dividend Growth ETF5.9%
  4. Fidelity Covington Trust5.8%
  5. iShares Core MSCI Eafe ETF5.5%
  6. Other 62 positions54.6%

Biggest buys

New and added positions, by estimated amount bought

  1. Vanguard Morningstar Total Stock Market ETF922908769
    +$2.20MAdded
  2. HOODRobinhood Markets, Inc.
    +$773.4KNewHistory
  3. RBLXRoblox Corp
    +$598.2KNewHistory
  4. NKENIKE, Inc.
    +$573.5KAddedHistory
  5. MUMicron Technology Inc
    +$527.4KNewHistory

Largest weight increases

New and added positions, by percentage points of the portfolio gained

  1. Vanguard Morningstar Total Stock Market ETF922908769
    +1.32 pp0.5% → 1.8%
  2. HOODRobinhood Markets, Inc.
    +0.46 pp0.0% → 0.5%History
  3. Invesco QQQ Trust Series I46090E103
    +0.36 pp3.2% → 3.6%
  4. RBLXRoblox Corp
    +0.36 pp0.0% → 0.4%History
  5. MUMicron Technology Inc
    +0.32 pp0.0% → 0.3%History

Biggest sells

Reduced and sold-out positions, by estimated amount sold

  1. STXSeagate Technology Holdings plc
    −$303.1KSold outHistory
  2. CCitigroup Inc
    −$300.2KSold outHistory
  3. NVDANVIDIA Corp
    −$292.3KReducedHistory
  4. COSTCostco Wholesale Corp
    −$264.7KSold outHistory
  5. CSCOCisco Systems, Inc.
    −$214.2KReducedHistory

Largest weight decreases

Reduced and sold-out positions, by percentage points of the portfolio lost

  1. XOMExxonMobil Holdings Corp
    −0.25 pp0.5% → 0.2%History
  2. STXSeagate Technology Holdings plc
    −0.21 pp0.2% → 0.0%History
  3. CCitigroup Inc
    −0.21 pp0.2% → 0.0%History
  4. COSTCostco Wholesale Corp
    −0.18 pp0.2% → 0.0%History
  5. NVDANVIDIA Corp
    −0.18 pp0.9% → 0.8%History

Metrics

13F metrics for Q2 2026, computed only from the numbers in the filings. Definitions below.

Portfolio value
$166.4M
+$22.1M (+15.3%) vs. prior quarter
Positions
67
+4 vs. prior quarter
Top 10 concentration
67.3%
Top 10 as share of value
Turnover
1.9%
Q2 2026, one quarter
Average holding period
15.2 quarters
Weighted by value

How these are calculated

  • Portfolio value: the market value of all long positions in the 13F, as reported at quarter end, excluding options.
  • Top 10 concentration: the combined value of the 10 largest positions as a share of portfolio value.
  • Turnover: the smaller of this quarter's estimated purchases and estimated sales, divided by the average of this and last quarter's portfolio value. Estimates multiply the change in shares by the quarter-end price implied by the filing (market value divided by shares); new positions use this quarter's value and sold-out positions last quarter's. Only positions reported in shares count, and it is not calculated when the previous quarter was not filed.
  • Average holding period: how many consecutive quarters each current position has been held (including this one; a quarter without the position or without a filing starts the count over), weighted by this quarter's value. Counting starts with the first 13F in Livermore (Q4 2021), so positions held before then are understated.

13F filings by quarter

19 quarters, going back to Q4 2021. Bars show each quarter's 13F portfolio value; quarters without a filing are left blank.

Peak $313.6M (Q2 2025)

Q4 2021: $109.2MQ1 2022: $123.1MQ2 2022: $111.4MQ3 2022: $102.2MQ4 2022: $125.3MQ1 2023: $142.0MQ2 2023: $154.4MQ3 2023: $148.5MQ4 2023: $192.4MQ1 2024: $193.8MQ2 2024: $250.4MQ3 2024: $276.0MQ4 2024: $285.8MQ1 2025: $281.9MQ2 2025: $313.6MQ3 2025: $176.9MQ4 2025: $146.5MQ1 2026: $144.2MQ2 2026: $166.4M
Q4 2021Q2 2026
13F filings of Custos Family Office, LLC by quarter
QuarterFiledPositionsValueTop 3 holdingsChangesFiling
Q2 2026Aug 19, 202667$166.4MiShares Core S&P 500 ETFVanguard Ftse Emerging Markets ETFiShares Core Dividend Growth ETFvs. Q1 2026SEC
Q1 2026Aug 19, 202663$144.2MiShares Core S&P 500 ETFVanguard Ftse Emerging Markets ETFiShares Core Dividend Growth ETFvs. Q4 2025SEC
Q4 2025Feb 17, 202660$146.5MiShares Core S&P 500 ETFVanguard Ftse Emerging Markets ETFiShares Core Dividend Growth ETFvs. Q3 2025SEC
Q3 2025Oct 16, 202565$176.9MiShares Core S&P 500 ETFVanguard Ftse Emerging Markets ETFSPYvs. Q2 2025SEC
Q2 2025Jul 21, 202573$313.6MiShares Core S&P 500 ETFVanguard Ftse Emerging Markets ETFFidelity Covington Trustvs. Q1 2025SEC
Q1 2025Apr 25, 202567$281.9MiShares Core S&P 500 ETFiShares MSCI USA Min Vol Factor ETFFidelity Covington Trustvs. Q4 2024SEC
Q4 2024Feb 10, 202570$285.8MiShares Core S&P 500 ETFFidelity Covington TrustiShares MSCI USA Min Vol Factor ETFvs. Q3 2024SEC
Q3 2024Oct 21, 202455$276.0MiShares Core S&P 500 ETFFidelity Covington TrustiShares MSCI USA Min Vol Factor ETFvs. Q2 2024SEC
Q2 2024Jul 24, 202455$250.4MiShares Core S&P 500 ETFiShares MSCI USA Min Vol Factor ETFiShares Core MSCI Emerging Markets ETFvs. Q1 2024SEC
Q1 2024May 6, 202446$193.8MiShares Core S&P 500 ETFiShares Core Dividend Growth ETFVanguard Ftse Emerging Markets ETFvs. Q4 2023SEC
Q4 2023Jan 16, 202445$192.4MiShares Core S&P 500 ETFVanguard Ftse Emerging Markets ETFiShares Core MSCI Emerging Markets ETFvs. Q3 2023SEC
Q3 2023Oct 20, 202340$148.5MiShares Core S&P 500 ETFVanguard Ftse Emerging Markets ETFSPYvs. Q2 2023SEC
Q2 2023Aug 4, 202343$154.4MiShares Core S&P 500 ETFVanguard Ftse Emerging Markets ETFSPYvs. Q1 2023SEC
Q1 2023May 10, 202340$142.0MiShares Core S&P 500 ETFVanguard Ftse Emerging Markets ETFiShares Core Dividend Growth ETFvs. Q4 2022SEC
Q4 2022Feb 13, 202339$125.3MiShares Core S&P 500 ETFVanguard Ftse Emerging Markets ETFiShares Core Dividend Growth ETFvs. Q3 2022SEC
Q3 2022Oct 20, 202222$102.2MiShares Core S&P 500 ETFiShares Core MSCI Emerging Markets ETFSPYvs. Q2 2022SEC
Q2 2022Aug 15, 202220$111.4MiShares Core S&P 500 ETFiShares Core MSCI Emerging Markets ETFSPYvs. Q1 2022SEC
Q1 2022May 11, 202226$123.1MiShares Core S&P 500 ETFiShares Core MSCI Emerging Markets ETFiShares Core Dividend Growth ETFvs. Q4 2021SEC
Q4 2021Feb 9, 202231$109.2MiShares Core S&P 500 ETFiShares Core MSCI Emerging Markets ETFVanguard Ftse Emerging Markets ETF–SEC