What is SEC Form 13F? Ultimate Guide to Institutional Equity Filings
Learn how SEC Form 13F filings work, the $100M threshold, 45-day reporting lag, and how to track top hedge fund holdings.
CIK: 0001635007
Total reported value
$2.6B
$2.6B
79 檔
65.0%
At the close of Q1 2026, Mason Investment Advisory Services, Inc. disclosed equity holdings valued at approximately $2.6B, spread across 79 reported holdings.
Mason Investment Advisory Services, Inc. executed strategic sector rebalancing during Q1 2026, establishing 3 new positions while fully exiting 4 holdings and trimming 25 positions.
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | VLUE | Ishares Msci USA Value Facto | ETF-Other | 30.50% | +3.48% | -1.03% | |
| 2 | AVUV | Avantis US Small Cap Value | ETF-Small Cap | 14.45% | -1.05% | -0.41% | |
| 3 | VSS | Vanguard Ftse All Wo X-us Sc | ETF-Other | 12.83% | -1.65% | -1.68% | |
| 4 | AVDV | Avantis Intl S/c Value ETF | ETF-Other | 10.88% | -1.66% | -2.30% | |
| 5 | AVSC | Avantis US Small Cap Equity | ETF-Small Cap | 10.32% | -0.41% | -0.61% | |
| 6 | TGRT | T. Rowe Price Growth ETF | ETF-Other | 10.19% | -0.37% | +4.17% | |
| 7 | VBR | Vanguard Small-cap Value ETF | ETF-Other | 2.84% | -0.23% | -0.76% | |
| 8 | CGDV | Cap Group Dividend Value | ETF-Other | 1.58% | — | +1.81% | |
| 9 | MINT | Pimco Enhanced Short Maturit | ETF-Other | 1.29% | -0.23% | -7.69% | |
| 10 | CGXU | Cap Group Intl Focus | ETF-Other | 1.11% | +0.07% | +14.75% | |
| 11 | CGGR | Cap Group Growth Equity | ETF-Other | 0.68% | +0.06% | +28.41% | |
| 12 | AVTM | Avantis Total Equity ETF | ETF-Other | 0.44% | -0.04% | — | |
| 13 | DFAT | Dimensional US Target Value | ETF-Other | 0.35% | -0.03% | +0.03% | |
| 14 | VNQI | Vanguard Glbl Ex-us Real Est | ETF-Other | 0.33% | -0.03% | -0.11% | |
| 15 | SPY | Ss Spdr S&p 500 ETF Trust-us | ETF-Large Cap & Growth | 0.16% | -0.01% | -0.02% | |
| 16 | XOM | Exxon Mobil CORP | Stock-Energy | 0.13% | -0.05% | -0.06% | |
| 17 | EFV | Ishares Msci Eafe Value ETF | ETF-Other | 0.11% | -0.01% | — | |
| 18 | FNDF | Schwab Fndmn Intl Lrg Co ETF | ETF-Other | 0.10% | -0.01% | — | |
| 19 | CVX | Chevron CORP | Stock-Energy | 0.10% | -0.04% | +0.11% | |
| 20 | VUG | Vanguard Growth ETF | ETF-Other | 0.08% | +0.07% | +149.13% | |
| 21 | DFAC | Dimensional US Core Equity 2 | ETF-Other | 0.07% | -0.01% | -0.97% | |
| 22 | VGSH | Vanguard Short-term Treasury | ETF-Gov Bonds | 0.07% | -0.01% | +0.61% | |
| 23 | AAPL | Apple Inc | Stock-Tech | 0.06% | -0.01% | -1.29% | |
| 24 | AOA | Ishares Core 80/20 Aggressiv | ETF-Other | 0.05% | +0.01% | +17.35% | |
| 25 | EZM | Wisdomtree US Midcap Fund | ETF-Other | 0.05% | — | — | |
| 26 | VDE | Vanguard Energy ETF | ETF-Other | 0.05% | -0.01% | +2.13% | |
| 27 | MDY | State Street Spdr S&p Midcap | ETF-Other | 0.05% | — | — | |
| 28 | VTI | Vanguard Total Stock Mkt ETF | ETF-Other | 0.05% | — | +0.34% | |
| 29 | SPYM | Ste Str Spdr Pt S&p 500 ETF | ETF-Large Cap & Growth | 0.05% | -0.01% | — | |
| 30 | VIG | Vanguard Dividend Apprec ETF | ETF-Other | 0.04% | — | +0.22% | |
| 31 | SPYV | Ss Spdr P S&p 500 Value ETF | ETF-Large Cap & Growth | 0.04% | — | +0.13% | |
| 32 | SCZ | Ishares Msci Eafe Small-cap | ETF-Other | 0.04% | — | — | |
| 33 | GNR | State Street Spdr S&p Global | ETF-Other | 0.04% | -0.01% | — | |
| 34 | VTV | Vanguard Value ETF | ETF-Other | 0.04% | +0.04% | +13.47% | |
| 35 | MSFT | Microsoft CORP | Stock-Tech | 0.04% | -0.01% | +1.22% | |
| 36 | VTEB | Vanguard Tax-exempt Bond ETF | ETF-Other | 0.04% | -0.01% | +13.46% | |
| 37 | IWF | Ishares Russell 1000 Growth | ETF-Other | 0.03% | +0.04% | — | |
| 38 | VNQ | Vanguard Real Estate ETF | ETF-Other | 0.03% | — | -2.19% | |
| 39 | ACI | Albertsons Cos Inc - Class A | Stock-Consumer Staples | 0.03% | -0.01% | +0.84% | |
| 40 | IVV | Ishares Core S&p 500 ETF | ETF-Large Cap & Growth | 0.03% | — | -6.03% | |
| 41 | VXF | Vanguard Extended Market ETF | ETF-Other | 0.03% | — | +0.09% | |
| 42 | VYM | Vanguard High Dvd Yield ETF | ETF-Other | 0.03% | — | -3.92% | |
| 43 | VAW | Vanguard Materials ETF | ETF-Other | 0.03% | -0.01% | -0.07% | |
| 44 | ANET | Arista Networks Inc | Stock-Tech | 0.03% | — | -13.87% | |
| 45 | VV | Vanguard Large-cap ETF | ETF-Other | 0.02% | — | -16.14% | |
| 46 | GOOG | Alphabet Inc-cl C | Stock-Comm Services | 0.02% | — | -17.58% | |
| 47 | VOO | Vanguard S&p 500 ETF | ETF-Large Cap & Growth | 0.02% | — | -2.35% | |
| 48 | IJH | Ishares Core S&p Midcap ETF | ETF-Other | 0.02% | — | +0.01% | |
| 49 | GOOGL | Alphabet Inc-cl A | Stock-Comm Services | 0.02% | — | -23.26% | |
| 50 | IWD | Ishares Russell 1000 Value E | ETF-Other | 0.02% | — | -42.69% |
According to official SEC Form 13F filings, Mason Investment Advisory Services, Inc. reported a total U.S. public equity portfolio value of $2.6B across 79 disclosed positions in Q1 2026.
Expert Analysis & Guides for Tracking Wall Street Smart Money Movements
Learn how SEC Form 13F filings work, the $100M threshold, 45-day reporting lag, and how to track top hedge fund holdings.
In terms of portfolio concentration, the top 5 core holdings (including VLUE, AVUV, VSS) accounted for 65.0% of total reported equity market value during Q1 2026.
Top New Position Initiated
AVTM
市值: $9.6M
Top Position Liquidated / Trimmed
IWO
前期市值: $597.2K
During Q1 2026, Mason Investment Advisory Services, Inc.'s top holdings by market value included VLUE (30.5%)、AVUV (14.4%)、VSS (12.8%). The largest single position, VLUE, represented 30.5% of total portfolio value.
In Q1 2026, Mason Investment Advisory Services, Inc. made 63 total portfolio adjustments, initiating 3 new buys, adding to 31 positions, trimming 25 holdings, and fully liquidating 4 stocks.
All holding records on this page are fetched directly from the U.S. Securities and Exchange Commission (SEC) EDGAR system (Form 13F-HR). AlphaSMO parses CUSIP identifiers and formats data into Schema.org-compliant datasets.
Understand SEC Form 4 insider disclosures for corporate officers, directors, and 10% owners to track executive transactions.
Understand Rule 144 restricted stock sale notices to spot planned insider liquidations before market sell pressure arrives.
Explore the 5% beneficial ownership threshold, 13D vs 13G filing differences, and recent SEC accelerated deadline rules.
Best practices for analyzing 13F quarterly changes without getting misled by stock splits, options, or market valuation drift.
Learn how AlphaSMO's flagship signal detects high-conviction stocks where 13F hedge funds and corporate insiders buy at the same time.