One Charles Private Wealth Services, LLC — 13F Holdings & Portfolio
CIK 1800938 · latest 13F-HR filed 2026-07-15
One Charles Private Wealth Services, LLC manages $434.5M in 13F-reported U.S. long-equity assets across 177 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are BRK.B (10.70%), TPL (7.12%), INFL (5.56%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 22 new positions, exited 5, added to 78, and trimmed 46.
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.
SUITE 101
HINGHAM, MA 02043
$434.5M
Long-equity book
177
Distinct positions
2026-06-30
Filed 2026-07-15
+22 / −5 / ↑78 / ↓46
vs 2026-03-31
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- LAM RESEARCH CORP$3.8M +99.4%
- SELECT SECTOR SPDR TR$3.7M +42.9%
- VANGUARD INDEX FDS$3.5M +22.8%
- VANGUARD INDEX FDS$3.1M +16.1%
- ADVISORS INNER CIRCLE FD III$3.0M +24.7%
Top Trims
- TEXAS PACIFIC LAND CORPORATI-$4.9M -13.7%
- ISHARES INC-$3.6M -92.2%
- GRAYSCALE BITCOIN TRUST ETF-$2.8M -19.1%
- LISTED FDS TR-$1.6M -6.4%
- ISHARES SILVER TR-$834.5K -28.3%
New Positions
- EA SERIES TRUST$6.0M
- MIAMI INTL HLDGS INC$4.4M
- GOLUB CAP BDC INC$491.5K
- ISHARES TR$417.4K
- SPACE EXPLORATION TECHN CORP$319.5K
Exited Positions
- HOLOGIC INC$428.6K
- HONEYWELL INTL INC$408.2K
- INVESCO EXCHANGE TRADED FD T$304.1K
- FIRST TR EXCHANGE-TRADED FD$247.4K
- PFIZER INC$202.3K
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 | BERKSHIRE HATHAWAY INC DEL | BRK.B | 084670702 | $46.5M | 10.70% | 92,896 | SH |
| 2 | TEXAS PACIFIC LAND CORPORATI | TPL | 88262P102 | $30.9M | 7.12% | 70,698 | SH |
| 3 | LISTED FDS TR | INFL | 53656F623 | $24.2M | 5.56% | 484,447 | SH |
| 4 | VANGUARD INDEX FDS | VTV | 922908744 | $22.7M | 5.22% | 104,141 | SH |
| 5 | VANGUARD INDEX FDS | VUG | 922908736 | $19.0M | 4.36% | 220,144 | SH |
| 6 | LANDBRIDGE COMPANY LLC | LB | 514952100 | $17.8M | 4.09% | 224,152 | SH |
| 7 | ADVISORS INNER CIRCLE FD III | SAMT | 00775Y645 | $15.0M | 3.44% | 313,351 | SH |
| 8 | JANUS DETROIT STR TR | JAAA | 47103U845 | $14.9M | 3.42% | 294,351 | SH |
| 9 | SELECT SECTOR SPDR TR | XLK | 81369Y803 | $12.4M | 2.85% | 64,884 | SH |
| 10 | GRAYSCALE BITCOIN TRUST ETF | GBTC | 389637109 | $11.8M | 2.72% | 259,750 | SH |
| 11 | SCHWAB STRATEGIC TR | SCHG | 808524300 | $9.2M | 2.12% | 271,918 | SH |
| 12 | JANUS DETROIT STR TR | JSI | 47103U746 | $9.0M | 2.08% | 176,717 | SH |
| 13 | APPLE INC | AAPL | 037833100 | $8.5M | 1.96% | 29,466 | SH |
| 14 | VANGUARD WORLD FD | VGT | 92204A702 | $7.6M | 1.76% | 63,908 | SH |
| 15 | LAM RESEARCH CORP | LRCX | 512807306 | $7.6M | 1.75% | 17,526 | SH |
| 16 | THORNBURG ETF TR | TXUE | 88521L306 | $7.0M | 1.61% | 202,964 | SH |
| 17 | SCHWAB STRATEGIC TR | SCHB | 808524102 | $6.5M | 1.50% | 225,062 | SH |
| 18 | EA SERIES TRUST | FRDM | 02072L607 | $6.0M | 1.39% | 82,719 | SH |
| 19 | ACV AUCTIONS INC | ACVA | 00091G104 | $5.6M | 1.29% | 779,768 | SH |
| 20 | ARK ETF TR | ARKK | 00214Q104 | $5.6M | 1.29% | 69,288 | SH |
| 21 | VANGUARD SPECIALIZED FUNDS | VIG | 921908844 | $5.0M | 1.14% | 20,974 | SH |
| 22 | NVIDIA CORPORATION | NVDA | 67066G104 | $4.6M | 1.06% | 22,960 | SH |
| 23 | MIAMI INTL HLDGS INC | MIAX | 59356Q108 | $4.4M | 1.01% | 118,419 | SH |
| 24 | JPMORGAN CHASE & CO | JPM | 46625H100 | $4.1M | 0.95% | 12,551 | SH |
| 25 | ISHARES TR | IVV | 464287200 | $4.0M | 0.93% | 5,379 | SH |
| 26 | ENERGY TRANSFER L P | ET | 29273V100 | $3.6M | 0.82% | 186,850 | SH |
| 27 | SELECT SECTOR SPDR TR | XLV | 81369Y209 | $3.3M | 0.75% | 20,638 | SH |
| 28 | GRAYSCALE BITCOIN MINI TR ET | BTC | 389930207 | $3.2M | 0.74% | 123,284 | SH |
| 29 | ALPHABET INC | GOOGL | 02079K305 | $2.9M | 0.66% | 8,061 | SH |
| 30 | ISHARES TR | IEFA | 46432F842 | $2.8M | 0.64% | 28,582 | SH |
| 31 | SELECT SECTOR SPDR TR | XLF | 81369Y605 | $2.7M | 0.61% | 49,814 | SH |
| 32 | AMAZON COM INC | AMZN | 023135106 | $2.7M | 0.61% | 11,189 | SH |
| 33 | MICROSOFT CORP | MSFT | 594918104 | $2.5M | 0.58% | 6,699 | SH |
| 34 | RTX CORPORATION | RTX | 75513E101 | $2.5M | 0.57% | 13,163 | SH |
| 35 | STATE STR SPDR S&P 500 ETF T | SPY | 78462F103 | $2.5M | 0.57% | 3,308 | SH |
| 36 | VANGUARD INDEX FDS | VBK | 922908595 | $2.5M | 0.57% | 6,731 | SH |
| 37 | BANK OF AMER CORP | BAC | 060505104 | $2.4M | 0.55% | 41,893 | SH |
| 38 | VANGUARD INDEX FDS | VBR | 922908611 | $2.4M | 0.55% | 9,756 | SH |
| 39 | SELECT SECTOR SPDR TR | XLC | 81369Y852 | $2.2M | 0.51% | 20,549 | SH |
| 40 | ISHARES SILVER TR | SLV | 46428Q109 | $2.1M | 0.49% | 39,592 | SH |
| 41 | ENTERPRISE PRODS PARTNERS L | EPD | 293792107 | $2.1M | 0.48% | 56,643 | SH |
| 42 | ISHARES TR | IWM | 464287655 | $2.0M | 0.45% | 6,518 | SH |
| 43 | WORLD GOLD TR | GLDM | 98149E303 | $2.0M | 0.45% | 24,604 | SH |
| 44 | VANGUARD INDEX FDS | VTI | 922908769 | $1.9M | 0.45% | 5,265 | SH |
| 45 | VANGUARD WORLD FD | VIS | 92204A603 | $1.9M | 0.44% | 5,344 | SH |
| 46 | IRON MTN INC DEL | IRM | 46284V101 | $1.8M | 0.42% | 14,538 | SH |
| 47 | SCHWAB STRATEGIC TR | SCHD | 808524797 | $1.8M | 0.41% | 56,849 | SH |
| 48 | META PLATFORMS INC | META | 30303M102 | $1.7M | 0.40% | 3,066 | SH |
| 49 | ARK 21SHARES BITCOIN ETF | ARKB | 040919102 | $1.7M | 0.40% | 88,282 | SH |
| 50 | ALPHABET INC | GOOG | 02079K107 | $1.7M | 0.39% | 4,847 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-06-30 | 2026-07-15 | $434.5M | 177 | 0001765380-26-000218 |
| 2026-03-31 | 2026-05-07 | $399.7M | 160 | 0001765380-26-000189 |
| 2025-12-31 | 2026-02-06 | $386.8M | 172 | 0001765380-26-000074 |