Institutional Manager · CIK 0002096700
William Mack & Associates, Inc.
TROY, MI · File #028-25873
Latest AUM
$212.5M
Positions
92
Top-10 Concentration
80.4%
Filings
5
Sector Allocation
Filing History
View all filings →Top 20 Holdings — Dec 2025
| # | Issuer | Ticker | Shares | Value | % of Portfolio |
|---|---|---|---|---|---|
| 1 | VANGUARD SCOTTSDALE FDS | 92206C409 | 544,662 | $43.4M | 21.55% |
| 2 | VANGUARD TAX-MANAGED FDS | 921943858 | 396,085 | $24.7M | 12.28% |
| 3 | VANGUARD INDEX FDS | 922908629 | 82,657 | $24.0M | 11.91% |
| 4 | SPDR SERIES TRUST | 78464A359 | 181,336 | $16.2M | 8.03% |
| 5 | DIMENSIONAL ETF TRUST | 25434V781 | 399,201 | $15.2M | 7.53% |
| 6 | SCHWAB STRATEGIC TR | 808524300 | 392,609 | $12.8M | 6.36% |
| 7 | APPLE INC | AAPL | 34,322 | $9.3M | 4.63% |
| 8 | SCHWAB STRATEGIC TR | 808524755 | 176,996 | $8.0M | 3.97% |
| 9 | MICROSOFT CORP | MSFT | 10,134 | $4.9M | 2.43% |
| 10 | VANGUARD MUN BD FDS | 922907746 | 69,081 | $3.5M | 1.72% |
| 11 | VANGUARD INDEX FDS | 922908637 | 9,721 | $3.1M | 1.52% |
| 12 | AMAZON COM INC | AMZN | 10,959 | $2.5M | 1.26% |
| 13 | ALPHABET INC | GOOG | 7,154 | $2.2M | 1.11% |
| 14 | TESLA INC | TSLA | 4,461 | $2.0M | 1.00% |
| 15 | VANGUARD INDEX FDS | 922908363 | 3,054 | $1.9M | 0.95% |
| 16 | VANGUARD INDEX FDS | 922908736 | 3,548 | $1.7M | 0.86% |
| 17 | SCHWAB STRATEGIC TR | 808524409 | 49,985 | $1.5M | 0.73% |
| 18 | VANGUARD BD INDEX FDS | 921937835 | 19,279 | $1.4M | 0.71% |
| 19 | ISHARES TR | 464287507 | 19,491 | $1.3M | 0.64% |
| 20 | VANGUARD INTL EQUITY INDEX F | 922042718 | 8,886 | $1.3M | 0.63% |