Weitz Investment Management, Inc. reported 48 positions worth $1.42B for the quarter ended Jun 30, 2026, up 1.7% on the prior quarter. It opened 3 new positions, added to 10, trimmed 19 and exited 2. Its largest holding is Berkshire Hathaway Inc at 9.6% of the portfolio.
Reported 13F market value at each quarter end. A change mixes trading with price moves in the positions held.
Dollar value of shares bought and sold each quarter, at that quarter’s price. It counts trading only, not price changes.
How many positions were opened, added to, trimmed or closed each quarter.
Share of reported value in each sector at every quarter end.
| Holding | Change | Change % | Trade Value | Weight |
|---|---|---|---|---|
| NFLX Netflix Inc | +147.2K | – | $10.51M | 0.74% |
| COF Capital One Financial Corp | +40.0K | – | $8.02M | 0.565% |
| MLM Martin Marietta Materials Inc | +7,595 | +19.1% | $4.38M | 1.92% |
| HEI-A Heico Corp | +15.5K | +8.2% | $4.00M | 3.71% |
| VLTO Veralto Corp | +37.5K | +93.8% | $3.33M | 0.484% |
| MTD Mettler Toledo International Inc/ | +2,550 | – | $3.26M | 0.229% |
| IR Ingersoll Rand Inc. | +28.5K | +21.4% | $2.33M | 0.933% |
| DHR Danaher Corp | +11.8K | +2.5% | $2.24M | 6.56% |
| RGEN Repligen Corp | +15.3K | +60.0% | $2.09M | 0.392% |
| MELI Mercadolibre Inc | +1,200 | +15.0% | $2.04M | 1.1% |
| Holding | Change | Change % | Trade Value | Weight |
|---|---|---|---|---|
| ODFL Old Dominion Freight Line, Inc. | -132.0K | -100.0% | $25.79M | Exited |
| TXN Texas Instruments Inc | -82.2K | -51.3% | $24.50M | 1.63% |
| GOOG Alphabet Inc. | -58.7K | -17.9% | $20.72M | 6.67% |
| ADI Analog Devices Inc | -21.1K | -19.9% | $8.39M | 2.38% |
| TECH BIO-TECHNE Corp | -110.0K | -16.8% | $7.77M | 2.7% |
| ACN Accenture plc | -51.0K | -29.9% | $6.35M | 1.05% |
| MSFT Microsoft Corp | -16.3K | -9.6% | $6.06M | 4.02% |
| CRM Salesforce, Inc. | -32.2K | -39.5% | $5.04M | 0.544% |
| CDW CDW Corp | -36.3K | -100.0% | $4.39M | Exited |
| BRK-B Berkshire Hathaway Inc | -7,250 | -2.6% | $3.63M | 9.56% |
| # | Activity | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | BRK-B Berkshire Hathaway Inc | Financial Services | 271.6K | $135.91M | 9.56% | -7,250 | -2.6% | Reduced | 0.02% |
| 2 | GOOG Alphabet Inc. | Technology | 268.1K | $94.73M | 6.67% | -58.7K | -17.9% | Reduced | 0% |
| 3 | DHR Danaher Corp | Healthcare | 489.5K | $93.24M | 6.56% | +11.8K | +2.5% | Added | 0.07% |
| 4 | V Visa Inc. | Financial Services | 265.3K | $91.03M | 6.41% | 0 | 0.0% | Unchanged | 0.02% |
| 5 | MA Mastercard Inc | Financial Services | 145.4K | $74.65M | 5.25% | -1,650 | -1.1% | Reduced | 0.02% |
| 6 | AON Aon plc | Financial Services | 213.9K | $70.94M | 4.99% | 0 | 0.0% | Unchanged | 0.1% |
| 7 | VMC Vulcan Materials CO | Basic Materials | 203.8K | $60.12M | 4.23% | -10.4K | -4.9% | Reduced | 0.16% |
| 8 | META Meta Platforms, Inc. | Technology | 103.0K | $58.00M | 4.08% | -2,750 | -2.6% | Reduced | 0% |
| 9 | TMO Thermo Fisher Scientific Inc. | Healthcare | 115.2K | $57.76M | 4.06% | -5,800 | -4.8% | Reduced | 0.03% |
| 10 | IEX Idex Corp | Industrials | 252.4K | $57.28M | 4.03% | -11.9K | -4.5% | Reduced | 0.34% |
| 11 | MSFT Microsoft Corp | Technology | 153.2K | $57.15M | 4.02% | -16.3K | -9.6% | Reduced | 0% |
| 12 | HEI-A Heico Corp | Industrials | 204.5K | $52.74M | 3.71% | +15.5K | +8.2% | Added | 0.24% |
| 13 | AMZN Amazon Com Inc | Consumer Discretionary | 217.5K | $51.84M | 3.65% | -5,000 | -2.2% | Reduced | 0% |
| 14 | TECH BIO-TECHNE Corp | Healthcare | 543.2K | $38.38M | 2.7% | -110.0K | -16.8% | Reduced | 0.35% |
| 15 | SIRI Sirius Xm Holdings Inc. | Communication Services | 1.19M | $35.09M | 2.47% | -105.0K | -8.1% | Reduced | 0.35% |
Tip. Select a row to see that position’s full history at Weitz Investment Management.
As of its Q2 2026 13F filing, Weitz Investment Management, Inc.’s five largest positions were Berkshire Hathaway Inc (BRK-B) at 9.6%, Alphabet Inc. (GOOG) at 6.7%, Danaher Corp (DHR) at 6.6%, Visa Inc. (V) at 6.4%, Mastercard Inc (MA) at 5.3% of the reported portfolio.
Weitz Investment Management, Inc. reported a 13F portfolio worth $1.42B across 48 positions for Q2 2026. That is up 1.7% from the previous quarter.
Its largest purchases by value were Netflix Inc ($10.51M), Capital One Financial Corp ($8.02M), Martin Marietta Materials Inc ($4.38M). It opened 3 new positions.
Its largest sales by value were Old Dominion Freight Line, Inc. ($25.79M), Texas Instruments Inc ($24.50M), Alphabet Inc. ($20.72M). It exited 2 positions entirely.
From the Form 13F-HR reports Weitz Investment Management, Inc. files with the SEC each quarter, within 45 days of quarter end. A 13F lists long positions in US-listed equities and options; it excludes short positions, cash, bonds and most non-US holdings.
13F data reflects long positions in US-listed equities and options as reported to the SEC up to 45 days after quarter end. It excludes short positions, cash, bonds and most non-US securities, so it is not a complete picture of a manager’s assets.