S.A. Mason LLC — 13F Holdings & Portfolio
CIK 1800911 · latest 13F-HR filed 2026-04-27
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.
Loading holdings…
AUM
$266.4M
Long-equity book
Holdings
266
Distinct positions
Period
2026-03-31
Filed 2026-04-27
Q/Q Activity
+19 / −13 / ↑106 / ↓59
vs 2025-12-31
Firm Profile & Key People
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- Vanguard Short Duration Tax-Exm Bd ETF$2.7M +42.1%
- Vanguard Short-Term Tax-Exmpt Bd ETF$2.6M +97.9%
- Vanguard S&P 500 ETF$1.5M +25.8%
- Vanguard FTSE Developed Market$1.3M +80.8%
- Vanguard Tax-Exempt Bond Index$1.3M +189.4%
Top Trims
- Microsoft Corp-$1.7M -22.6%
- Oracle Corp-$1.4M -69.4%
- NVIDIA Corp-$1.3M -8.6%
- Intuit Inc-$1.2M -34.6%
- Palantir Technologies Inc-$717.0K -18.0%
New Positions
- iShares Short-Term National AMT-Free Muni Bond ETF$1.0M
- Netflix Inc$643.2K
- Henry Jack & Assoc Inc$474.4K
- S&P Global Inc$447.5K
- Applied Materials Inc$278.9K
Exited Positions
- CyberArk Software Ltd$650.8K
- Reddit Inc$590.8K
- QUALCOMM Inc$203.9K
- Estee Lauder Cos Inc/The$145.7K
- Plains All American Pipeline L$133.0K
All Holdings
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 | NVIDIA Corp | NVDA | 67066G104 | $13.9M | 5.22% | 79,671 | SH |
| 2 | Vanguard Total Stock Market ETF | VTI | 922908769 | $9.1M | 3.43% | 28,481 | SH |
| 3 | Vanguard Short Duration Tax-Exm Bd ETF | VSDM | 922907696 | $9.1M | 3.41% | 119,047 | SH |
| 4 | iShares Core S&P 500 ETF | IVV | 464287200 | $8.3M | 3.11% | 12,679 | SH |
| 5 | Vanguard S&P 500 ETF | VOO | 922908363 | $7.3M | 2.75% | 12,255 | SH |
| 6 | Vanguard Mid-Cap ETF | VO | 922908629 | $6.2M | 2.34% | 21,693 | SH |
| 7 | Vanguard Small-Cap ETF | VB | 922908751 | $6.1M | 2.28% | 23,192 | SH |
| 8 | Microsoft Corp | MSFT | 594918104 | $5.7M | 2.16% | 15,515 | SH |
| 9 | SPDR S&P 500 ETF Trust | SPY | 78462F103 | $5.7M | 2.15% | 8,812 | SH |
| 10 | Apple Inc | AAPL | 037833100 | $5.7M | 2.13% | 22,386 | SH |
| 11 | Vanguard Intermediate-Term Tax-Exempt Bond ETF | VTEI | 922907738 | $5.5M | 2.07% | 55,286 | SH |
| 12 | Vanguard Short-Term Tax-Exmpt Bd ETF | VTES | 921935870 | $5.3M | 2.01% | 52,870 | SH |
| 13 | Costco Wholesale Corp | COST | 22160K105 | $5.0M | 1.87% | 5,008 | SH |
| 14 | Vanguard Core Tax-Exempt Bond ETF | VCRM | 922907712 | $3.8M | 1.44% | 50,980 | SH |
| 15 | Palantir Technologies Inc | PLTR | 69608A108 | $3.3M | 1.22% | 22,302 | SH |
| 16 | Alphabet Inc | GOOGL | 02079K305 | $3.1M | 1.17% | 10,865 | SH |
| 17 | Strive 500 ETF | STRV | 02072L680 | $3.1M | 1.17% | 74,144 | SH |
| 18 | Vanguard FTSE Developed Market | VEA | 921943858 | $2.9M | 1.08% | 45,075 | SH |
| 19 | SPDR Gold Shares | GLD | 78463V107 | $2.8M | 1.05% | 6,493 | SH |
| 20 | TJX Cos Inc/The | TJX | 872540109 | $2.7M | 1.01% | 16,891 | SH |
| 21 | AbbVie Inc | ABBV | 00287Y109 | $2.7M | 1.00% | 12,233 | SH |
| 22 | Mastercard Inc | MA | 57636Q104 | $2.5M | 0.93% | 4,956 | SH |
| 23 | Akre Focus ETF | AKRE | 74316P579 | $2.4M | 0.90% | 45,350 | SH |
| 24 | Visa Inc | V | 92826C839 | $2.4M | 0.89% | 7,840 | SH |
| 25 | Chevron Corp | CVX | 166764100 | $2.3M | 0.86% | 11,114 | SH |
| 26 | PepsiCo Inc | PEP | 713448108 | $2.2M | 0.84% | 14,337 | SH |
| 27 | Intuit Inc | INTU | 461202103 | $2.2M | 0.83% | 5,117 | SH |
| 28 | Amgen Inc | AMGN | 031162100 | $2.2M | 0.83% | 6,283 | SH |
| 29 | General Electric Co | GE | 369604301 | $2.2M | 0.82% | 7,694 | SH |
| 30 | SPDR Portfolio S&P 400 Mid Cap | SPMD | 78464A847 | $2.2M | 0.82% | 36,665 | SH |
| 31 | O'Reilly Automotive Inc | ORLY | 67103H107 | $2.1M | 0.80% | 23,166 | SH |
| 32 | Procter & Gamble Co/The | PG | 742718109 | $2.1M | 0.77% | 14,259 | SH |
| 33 | Vanguard Large-Cap ETF | VV | 922908637 | $2.0M | 0.76% | 6,751 | SH |
| 34 | Meta Platforms Inc | META | 30303M102 | $2.0M | 0.75% | 3,503 | SH |
| 35 | Vanguard Tax-Exempt Bond Index | VTEB | 922907746 | $2.0M | 0.74% | 39,330 | SH |
| 36 | Johnson & Johnson | JNJ | 478160104 | $1.8M | 0.69% | 7,537 | SH |
| 37 | Palo Alto Networks Inc | PANW | 697435105 | $1.8M | 0.68% | 11,222 | SH |
| 38 | Eli Lilly & Co | LLY | 532457108 | $1.8M | 0.67% | 1,947 | SH |
| 39 | Micron Technology Inc | MU | 595112103 | $1.8M | 0.67% | 5,246 | SH |
| 40 | Alphabet Inc | GOOG | 02079K107 | $1.8M | 0.66% | 6,162 | SH |
| 41 | iShares Russell 1000 Growth ET | IWF | 464287614 | $1.8M | 0.66% | 4,116 | SH |
| 42 | Walmart Inc | WMT | 931142103 | $1.7M | 0.63% | 13,585 | SH |
| 43 | Schwab US Broad Market ETF | SCHB | 808524102 | $1.7M | 0.63% | 66,845 | SH |
| 44 | Berkshire Hathaway Inc | BRK.B | 084670702 | $1.6M | 0.61% | 3,407 | SH |
| 45 | American Express Co | AXP | 025816109 | $1.5M | 0.58% | 5,103 | SH |
| 46 | iShares Gold Trust | IAU | 464285204 | $1.5M | 0.57% | 17,372 | SH |
| 47 | iShares Core S&P Mid-Cap ETF | IJH | 464287507 | $1.5M | 0.57% | 22,574 | SH |
| 48 | Schwab U.S. Mid-Cap ETF | SCHM | 808524508 | $1.5M | 0.57% | 49,133 | SH |
| 49 | McDonald's Corp | MCD | 580135101 | $1.5M | 0.57% | 4,864 | SH |
| 50 | Sandisk Corp | SNDK | 80004C200 | $1.5M | 0.56% | 2,351 | SH |
Filing History
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-03-31 | 2026-04-27 | $266.4M | 266 | 0001800911-26-000002 |
| 2025-12-31 | 2026-01-29 | $252.9M | 260 | 0001800911-26-000001 |