Cabot-Wellington, LLC
- SEC CIK
- 0001353198
- Latest filing
- Jul 15, 2026
The latest 13F from Cabot-Wellington, LLC covers Q2 2026 (filed Jul 15, 2026): 5 long positions worth $379.5M. The top 10 holdings make up 100.0% of the portfolio, and the largest is Vanguard Morningstar Total Stock Market ETF at 75.2%. Livermore has 22 filings on Form 13F from this institution, going back to Q1 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.
- New
- 0
- Added
- 1
- Est. +$1.82K
- Reduced
- 4
- Est. −$5.60M
- Sold out
- 0
Top 5 holdings
Share of this quarter's portfolio value
- Vanguard Morningstar Total Stock Market ETF92290876975.2%$285.4M
- iShares Core MSCI Eafe ETF46432F84217.6%$66.6M
- iShares Core MSCI Emerging Markets ETF46434G1036.7%$25.6M
- Vanguard Morningstar Small-Cap ETF9229087510.4%$1.62M
- Vanguard Total World Stock ETF9220427420.1%$226.8K
Biggest buys
New and added positions, by estimated amount bought
- Vanguard Morningstar Small-Cap ETF922908751+$1.82KAdded
Largest weight increases
New and added positions, by percentage points of the portfolio gained
- Vanguard Morningstar Small-Cap ETF922908751+0.01 pp0.4% → 0.4%
Biggest sells
Reduced and sold-out positions, by estimated amount sold
- Vanguard Morningstar Total Stock Market ETF922908769−$2.87MReduced
- iShares Core MSCI Eafe ETF46432F842−$2.04MReduced
- iShares Core MSCI Emerging Markets ETF46434G103−$631.9KReduced
- Vanguard Total World Stock ETF922042742−$65.0KReduced
Largest weight decreases
Reduced and sold-out positions, by percentage points of the portfolio lost
- iShares Core MSCI Eafe ETF46432F842−1.48 pp19.0% → 17.6%
- Vanguard Total World Stock ETF922042742−0.02 pp0.1% → 0.1%
Metrics
13F metrics for Q2 2026, computed only from the numbers in the filings. Definitions below.
- Portfolio value
- $379.5M
- +$41.5M (+12.3%) vs. prior quarter
- Positions
- 5
- 0 vs. prior quarter
- Top 10 concentration
- 100.0%
- Top 10 as share of value
- Turnover
- <0.1%
- Q2 2026, one quarter
- Average holding period
- 20.9 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 (Q1 2021), so positions held before then are understated.
13F filings by quarter
22 quarters, going back to Q1 2021. Bars show each quarter's 13F portfolio value; quarters without a filing are left blank.
Peak $379.5M (Q2 2026)
| Quarter | Filed | Positions | Value | Top 3 holdings | Changes | Filing |
|---|---|---|---|---|---|---|
| Q2 2026 | Jul 15, 2026 | 5 | $379.5M | Vanguard Morningstar Total Stock Market ETFiShares Core MSCI Eafe ETFiShares Core MSCI Emerging Markets ETF | vs. Q1 2026 | SEC |
| Q1 2026 | May 6, 2026 | 5 | $338.1M | Vanguard Morningstar Total Stock Market ETFiShares Core MSCI Eafe ETFiShares Core MSCI Emerging Markets ETF | vs. Q4 2025 | SEC |
| Q4 2025 | Jan 28, 2026 | 5 | $311.8M | Vanguard Morningstar Total Stock Market ETFiShares Core MSCI Eafe ETFiShares Core MSCI Emerging Markets ETF | vs. Q3 2025 | SEC |
| Q3 2025 | Oct 29, 2025 | 5 | $309.1M | Vanguard Morningstar Total Stock Market ETFiShares Core MSCI Eafe ETFiShares Core MSCI Emerging Markets ETF | vs. Q2 2025 | SEC |
| Q2 2025 | Jul 30, 2025 | 5 | $290.3M | Vanguard Morningstar Total Stock Market ETFiShares Core MSCI Eafe ETFiShares Core MSCI Emerging Markets ETF | vs. Q1 2025 | SEC |
| Q1 2025 | Apr 14, 2025 | 5 | $271.4M | Vanguard Morningstar Total Stock Market ETFiShares Core MSCI Eafe ETFiShares Core MSCI Emerging Markets ETF | vs. Q4 2024 | SEC |
| Q4 2024 | Jan 28, 2025 | 4 | $263.1M | Vanguard Morningstar Total Stock Market ETFiShares Core MSCI Eafe ETFVanguard Morningstar Small-Cap ETF | vs. Q3 2024 | SEC |
| Q3 2024 | Oct 25, 2024 | 4 | $266.0M | Vanguard Morningstar Total Stock Market ETFiShares Core MSCI Eafe ETFVanguard Morningstar Small-Cap ETF | vs. Q2 2024 | SEC |
| Q2 2024 | Jul 25, 2024 | 4 | $255.4M | Vanguard Morningstar Total Stock Market ETFiShares Core MSCI Eafe ETFVanguard Morningstar Small-Cap ETF | vs. Q1 2024 | SEC |
| Q1 2024 | May 23, 2024 | 4 | $257.7M | Vanguard Morningstar Total Stock Market ETFiShares Core MSCI Eafe ETFVanguard Morningstar Small-Cap ETF | vs. Q4 2023 | SEC |
| Q4 2023 | Feb 8, 2024 | 3 | $239.2M | Vanguard Morningstar Total Stock Market ETFiShares Core MSCI Eafe ETFVanguard Morningstar Small-Cap ETF | vs. Q3 2023 | SEC |
| Q3 2023 | Nov 7, 2023 | 3 | $173.1M | Vanguard Morningstar Total Stock Market ETFiShares Core MSCI Eafe ETFVanguard Morningstar Small-Cap ETF | vs. Q2 2023 | SEC |
| Q2 2023 | Jul 26, 2023 | 4 | $180.5M | Vanguard Morningstar Total Stock Market ETFiShares Core MSCI Eafe ETFVanguard Morningstar Small-Cap ETF | vs. Q1 2023 | SEC |
| Q1 2023 | May 15, 2023 | 4 | $170.9M | Vanguard Morningstar Total Stock Market ETFiShares Core MSCI Eafe ETFVanguard Morningstar Small-Cap ETF | vs. Q4 2022 | SEC |
| Q4 2022 | Mar 21, 2023 | 4 | $157.2M | Vanguard Morningstar Total Stock Market ETFiShares Core MSCI Eafe ETFVanguard Morningstar Small-Cap ETF | vs. Q3 2022 | SEC |
| Q3 2022 | Mar 21, 2023 | 6 | $148.1M | Vanguard Morningstar Total Stock Market ETFiShares Core MSCI Eafe ETFVanguard Morningstar Small-Cap ETF | vs. Q2 2022 | SEC |
| Q2 2022 | Mar 21, 2023 | 8 | $163.3M | Vanguard Morningstar Total Stock Market ETFiShares Core MSCI Eafe ETFVanguard Morningstar Small-Cap ETF | vs. Q1 2022 | SEC |
| Q1 2022 | Mar 21, 2023 | 9 | $202.2M | Vanguard Morningstar Total Stock Market ETFiShares Core MSCI Eafe ETFVanguard Morningstar Small-Cap ETF | vs. Q4 2021 | SEC |
| Q4 2021 | Mar 21, 2023 | 12 | $217.7M | Vanguard Morningstar Total Stock Market ETFiShares Core MSCI Eafe ETFVanguard Morningstar Small-Cap ETF | vs. Q3 2021 | SEC |
| Q3 2021 | Dec 30, 2021 | 17 | $217.8M | Vanguard Morningstar Total Stock Market ETFiShares Core MSCI Eafe ETFVanguard Morningstar Small-Cap ETF | vs. Q2 2021 | SEC |
| Q2 2021 | Dec 30, 2021 | 17 | $220.7M | Vanguard Morningstar Total Stock Market ETFiShares Core MSCI Eafe ETFVanguard Morningstar Small-Cap ETF | vs. Q1 2021 | SEC |
| Q1 2021 | Dec 30, 2021 | 17 | $209.8M | Vanguard Morningstar Total Stock Market ETFiShares Core MSCI Eafe ETFVanguard Morningstar Small-Cap ETF | – | SEC |