Manager activity
Wallace Weitz
This quarter’s activity: 2026 Q1 vs 2025 Q4 · filed 5/14/2026 · full comparison · all filings
New · 8
Add · 6
Reduce · 28
Exit · 3
| Action | Issuer | Δ Shares | Δ Shares % | Δ Port % | Filed |
|---|---|---|---|---|---|
| Reduce | COSTAR GROUP INC | -202,825 | -28.2% | -1.41 pp | 5/14/2026 |
| Reduce | DANAHER CORPORATION | -36,200 | -7.0% | -0.65 pp | 5/14/2026 |
| Reduce | IDEX CORP | -127,175 | -32.5% | -0.63 pp | 5/14/2026 |
| Reduce | THERMO FISHER SCIENTIFIC INC | -13,950 | -10.3% | -0.48 pp | 5/14/2026 |
| Reduce | GLOBAL PMTS INC | -170,000 | -33.7% | -0.74 pp | 5/14/2026 |
| Exit | ROPER TECHNOLOGIES INC | -36,550 | Exit | -0.96 pp | 5/14/2026 |
| Reduce | MASTERCARD INCORPORATED | -8,900 | -5.7% | -0.15 pp | 5/14/2026 |
| Reduce | ALPHABET INC | -21,150 | -6.1% | +0.07 pp | 5/14/2026 |
| Reduce | VISA INC | -5,250 | -1.9% | -0.03 pp | 5/14/2026 |
| Reduce | BIO-TECHNE CORP | -149,750 | -18.6% | -0.42 pp | 5/14/2026 |
| Reduce | EQUIFAX INC | -27,275 | -12.7% | -0.41 pp | 5/14/2026 |
| Reduce | META PLATFORMS INC | -3,000 | -2.8% | -0.03 pp | 5/14/2026 |
| New | INGERSOLL RAND INC | +133,200 | New | +0.74 pp | 5/14/2026 |
| Reduce | BERKSHIRE HATHAWAY INC DEL | -8,000 | -2.8% | +0.78 pp | 5/14/2026 |
| Add | ACCENTURE PLC IRELAND | +9,800 | +6.1% | -0.20 pp | 5/14/2026 |
| Reduce | AON PLC | -4,875 | -2.2% | +0.24 pp | 5/14/2026 |
| Reduce | SALESFORCE COM INC | -6,000 | -6.9% | -0.31 pp | 5/14/2026 |
| Add | MICROSOFT CORP | +23,475 | +16.1% | +0.19 pp | 5/14/2026 |
| New | ASML HLDG NV | +5,500 | New | +0.51 pp | 5/14/2026 |
| Reduce | OLD DOMINION FREIGHT LINE IN | -76,800 | -36.8% | -0.14 pp | 5/14/2026 |
| New | TAIWAN SEMICONDUCTOR MANUFAC | +20,000 | New | +0.47 pp | 5/14/2026 |
| Add | MERCADOLIBRE INC | +4,300 | +116.2% | +0.52 pp | 5/14/2026 |
| Exit | GARTNER INC | -24,425 | Exit | -0.37 pp | 5/14/2026 |
| New | NVIDIA CORPORATION | +35,000 | New | +0.43 pp | 5/14/2026 |
| Reduce | ORACLE CORP | -15,000 | -21.4% | -0.24 pp | 5/14/2026 |
| Reduce | CDW CORP | -20,000 | -35.6% | -0.15 pp | 5/14/2026 |
| New | POOL CORP | +15,000 | New | +0.21 pp | 5/14/2026 |
| New | REPLIGEN CORP | +25,500 | New | +0.21 pp | 5/14/2026 |
| Reduce | LIBERTY BROADBAND CORP | -75,000 | -11.5% | +0.15 pp | 5/14/2026 |
| Reduce | TEXAS INSTRS INC | -5,000 | -3.0% | +0.47 pp | 5/14/2026 |
| Reduce | MARTIN MARIETTA MATLS INC | -1,500 | -3.6% | +0.11 pp | 5/14/2026 |
| Reduce | ANALOG DEVICES INC | -26,450 | -19.9% | +0.23 pp | 5/14/2026 |
| Reduce | SIRIUSXM HOLDINGS INC | -91,000 | -6.6% | +0.44 pp | 5/14/2026 |
| Exit | DIAGEO PLC | -23,800 | Exit | -0.12 pp | 5/14/2026 |
| Add | VULCAN MATLS CO | +4,000 | +1.9% | +0.52 pp | 5/14/2026 |
| Reduce | LABCORP HOLDINGS INC | -700 | -0.7% | +0.36 pp | 5/14/2026 |
| Reduce | LKQ CORP | -33,000 | -7.5% | +0.05 pp | 5/14/2026 |
| Reduce | FORTIVE CORP | -22,900 | -50.4% | -0.06 pp | 5/14/2026 |
| New | FERGUSON ENTERPRISES INC | +5,200 | New | +0.08 pp | 5/14/2026 |
| Add | HEICO CORP NEW | +26,200 | +16.1% | +0.35 pp | 5/14/2026 |
| Reduce | COMCAST CORP NEW | -38,000 | -44.7% | -0.06 pp | 5/14/2026 |
| New | AMPHENOL CORP | +9,200 | New | +0.08 pp | 5/14/2026 |
| Reduce | S&P GLOBAL INC | -90 | -1.3% | -0.01 pp | 5/14/2026 |
| Add | VERALTO CORP | +2,000 | +5.3% | +0.02 pp | 5/14/2026 |
| Reduce | LIBERTY BROADBAND CORP | -10,000 | -7.1% | +0.05 pp | 5/14/2026 |