Weitz Investment Management 13F, Q2 2026
Wallace Weitz · quarter ending 30 June 2026 · filed 12 August 2026 · SEC CIK 883965
Common stock only: shares the fund reported owning at the quarter end, valued as filed.
Largest positions, Q2 2026
The 25 largest of 50 positions. Weights are against the whole filed book. Changes are in shares held, against the Q1 2026 filing.
| Company | Ticker | Value | % of book | vs Q1 2026 |
|---|---|---|---|---|
| BERKSHIRE HATHAWAY CL B ORD | BRK/B | $135.91M | 9.4% | -3% shares |
| ALPHABET CL C ORD | GOOG | $94.73M | 6.6% | -18% shares |
| DANAHER ORD | DHR | $93.24M | 6.5% | +3% shares |
| VISA CL A ORD | V | $91.03M | 6.3% | unchanged |
| MASTERCARD CL A ORD | MA | $74.65M | 5.2% | unchanged |
| AON CL A ORD | $70.94M | 4.9% | unchanged | |
| VULCAN MATERIALS ORD | VMC | $60.12M | 4.2% | -5% shares |
| META PLATFORMS CL A ORD | META | $58.00M | 4.0% | -3% shares |
| THERMO FISHER SCIENTIFIC ORD | TMO | $57.76M | 4.0% | -5% shares |
| IDEX ORD | IEX | $57.28M | 4.0% | -5% shares |
| MICROSOFT ORD | MSFT | $57.15M | 4.0% | -10% shares |
| HEICO CL A ORD | HEI/A | $52.74M | 3.6% | +8% shares |
| AMAZON COM ORD | AMZN | $51.84M | 3.6% | -2% shares |
| BIO TECHNE ORD | TECH | $38.38M | 2.7% | -17% shares |
| SIRIUSXM HOLDINGS ORD | SIRI | $35.09M | 2.4% | -8% shares |
| ANALOG DEVICES ORD | ADI | $33.85M | 2.3% | -20% shares |
| EQUIFAX ORD | EFX | $30.47M | 2.1% | +2% shares |
| LABCORP HOLDINGS ORD | LH | $27.73M | 1.9% | unchanged |
| MARTIN MARIETTA MATERIALS ORD | MLM | $27.32M | 1.9% | +19% shares |
| GLOBAL PAYMENTS ORD | GPN | $25.40M | 1.8% | +5% shares |
| TEXAS INSTRUMENTS ORD | TXN | $23.22M | 1.6% | -51% shares |
| LIBERTY BROADBAND SRS C ORD | LBRDK | $19.16M | 1.3% | unchanged |
| IDEXX LABORATORIES ORD | IDXX | $18.58M | 1.3% | unchanged |
| ACI WORLDWIDE ORD | ACIW | $18.49M | 1.3% | unchanged |
| PERIMETER SOLUTIONS ORD | PRM | $16.07M | 1.1% | -12% shares |
What changed since Q1 2026
Against the Q1 2026 filing, Weitz Investment Management opened 3 new positions, added to 9, trimmed 18, left 20 unchanged and exited 2. Every position is compared, matched on its CUSIP; a change of 2% or less in shares counts as unchanged.
Other quarters
Source: SEC Form 13F-HR, accession 0001821268-26-000133, filed by WEITZ INVESTMENT MANAGEMENT, INC.. Values are as filed and cover US-listed positions only; a 13F does not show short positions or holdings outside the US. A 13F may be filed up to 45 days after the quarter ends, so the fund may have traded since. Educational information, not financial advice.