Institutional Manager · CIK 0002074052
MASECO LLP
LONDON, X0 · File #028-25655
Latest AUM
$2.30B
Positions
543
Top-10 Concentration
74.9%
Filings
3
Portfolio Value Over Time
2025-06
2025-09
2025-12
Biggest QoQ Changes
Ranked by conviction flow (share change × current price) so mark-to-market moves don't dominate. Price effect column shows how much of the $ change was just the stock moving.
| Action | Issuer | Ticker / CUSIP | Δ Shares | Flow ($) | Price Effect |
|---|---|---|---|---|---|
| NEW | ISHARES TR | 464288679 | +340,625 | +$37.5M | $0 |
| NEW | VANGUARD INDEX FDS | 922908363 | +36,684 | +$23.0M | $0 |
| ADD | VANGUARD SCOTTSDALE FDS | 92206C706 | +269,774 | +$16.2M | -$645,042 |
| ADD | DIMENSIONAL ETF TRUST | 25434V583 | +262,209 | +$14.2M | -$4.6M |
| ADD | DIMENSIONAL ETF TRUST | 25434V104 | +212,037 | +$9.9M | +$1.3M |
| NEW | ISHARES TR | 464287200 | +14,217 | +$9.7M | $0 |
| ADD | DIMENSIONAL ETF TRUST | 25434V708 | +230,979 | +$9.1M | +$1.5M |
| ADD | DIMENSIONAL ETF TRUST | 25434V799 | +217,397 | +$7.5M | +$4.4M |
| ADD | DIMENSIONAL ETF TRUST | 25434V674 | +116,415 | +$6.0M | -$2.4M |
| REDUCE | DIMENSIONAL ETF TRUST | 25434V401 | -77,103 | -$5.7M | +$12.8M |
Sector Allocation
Filing History
- 13F HOLDINGS REPORTQ/E Dec 2025543 pos · $2.30B
- 13F HOLDINGS REPORTQ/E Sep 2025267 pos · $2.06B
- 13F HOLDINGS REPORTQ/E Jun 2025509 pos · $2.63B
Top 20 Holdings — Dec 2025
| # | Issuer | Ticker | Shares | Value | % of Portfolio |
|---|---|---|---|---|---|
| 1 | DIMENSIONAL ETF TRUST | 25434V401 | 7,460,195 | $553.1M | 24.44% |
| 2 | VANGUARD SCOTTSDALE FDS | 92206C706 | 6,133,923 | $367.6M | 16.24% |
| 3 | DIMENSIONAL ETF TRUST | 25434V583 | 3,388,477 | $183.3M | 8.10% |
| 4 | DIMENSIONAL ETF TRUST | 25434V799 | 2,878,096 | $99.2M | 4.38% |
| 5 | DIMENSIONAL ETF TRUST | 25434V724 | 2,032,404 | $94.7M | 4.18% |
| 6 | DIMENSIONAL ETF TRUST | 25434V674 | 1,715,344 | $88.8M | 3.92% |
| 7 | DIMENSIONAL ETF TRUST | 25434V716 | 1,953,681 | $84.8M | 3.75% |
| 8 | DIMENSIONAL ETF TRUST | 25434V203 | 2,067,454 | $78.8M | 3.48% |
| 9 | ISHARES TR | 46429B747 | 733,508 | $75.1M | 3.32% |
| 10 | DIMENSIONAL ETF TRUST | 25434V732 | 2,087,679 | $69.0M | 3.05% |
| 11 | DIMENSIONAL ETF TRUST | 25434V708 | 1,714,096 | $67.9M | 3.00% |
| 12 | DIMENSIONAL ETF TRUST | 25434V104 | 1,443,392 | $67.6M | 2.98% |
| 13 | DIMENSIONAL ETF TRUST | 25434V807 | 1,032,961 | $51.5M | 2.28% |
| 14 | DIMENSIONAL ETF TRUST | 25434V302 | 1,291,691 | $42.1M | 1.86% |
| 15 | DIMENSIONAL ETF TRUST | 25434V690 | 946,932 | $40.6M | 1.79% |
| 16 | DIMENSIONAL ETF TRUST | 25434V658 | 1,471,409 | $38.9M | 1.72% |
| 17 | ISHARES TR | 464288679 | 340,625 | $37.5M | 1.66% |
| 18 | DIMENSIONAL ETF TRUST | 25434V864 | 649,216 | $31.1M | 1.38% |
| 19 | VANGUARD SCOTTSDALE FDS | 92206C102 | 487,417 | $28.6M | 1.26% |
| 20 | DIMENSIONAL ETF TRUST | 25434V682 | 573,639 | $23.8M | 1.05% |