| # | % | |||||
|---|---|---|---|---|---|---|
| 1 | New England Research & Management, Inc. | 45,859 | 1,796,000 | 44.65% | ||
| 2 | CARDEROCK CAPITAL MANAGEMENT INC | 14,741 | 577,000 | 14.35% | ||
| 3 | Avalon Investment & Advisory | 13,606 | 533,000 | 13.25% | ||
| 4 | World Asset Management Inc | 11,983 | 469,000 | 11.66% | ||
| 5 | Laird Norton Wetherby Wealth Management, LLC | 10,882 | 426,000 | 10.59% | ||
| 6 | CITY NATIONAL BANK | 5,607 | 220,000 | 5.47% | ||
| 7 | QCI ASSET MANAGEMENT INC/NY | 14 | 1,000 | 0.02% |
From 2023-01-03 onward, the SEC requires values to be reported in nearest dollars. Earlier filings reported values in thousands; therefore, positions shown as $0 in older filings may represent actual values between $0–$999.
