Wallace Weitz

Founder of Weitz Investment Management. This page shows the investment institution’s dated SEC filings, not a complete personal portfolio.

RECORD OWNER / ASSOCIATIONWEITZ INVESTMENT MANAGEMENT, INC.
LATEST COLLECTED RECORD DATE30 Jun 2026
RESEARCH COVERAGE99 records · 2 dates
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These are disclosures by an associated institution. The person’s name provides context; it does not establish current management, personal ownership or who made the trade.

A CLOSER LOOK / 31 Mar 2026

Largest positions
in this source table.

Weights calculated from the complete reported table of U.S. SEC EDGAR. Denominator: that source’s disclosed public table, not personal wealth.

See source & scope ↗
BERKSHIRE HATHAWAY INC DEL
9.33%
ALPHABET INC
6.54%
DANAHER CORPORATION
6.32%
VISA INC
5.60%
MASTERCARD INCORPORATED
5.13%
Top 5 of 49 selected source-table records.
PERIOD COMPARISON

Comparison unavailable.

The preceding complete report is not available. Missing data is not a zero position.

The disclosed positions.

2 record sources ↗
ASSET / SECURITYREPORTED QUANTITYREPORTED VALUE / USDWEIGHTQUARTERLY ACTIVITYRECORD TYPE / OWNERSOURCE
084670702BERKSHIRE HATHAWAY INC DEL278,850shares$133,624,920Reported market value$479.2 / reported unit (derived)9.33%Share of this filing tableNo comparable prior disclosureQuarter-end positionAssociated institution31 Mar 2026U.S. SEC EDGAR ↗Record details ↗
02079K107ALPHABET INC326,750shares$93,731,505Reported market value$286.86 / reported unit (derived)6.54%Share of this filing tableNo comparable prior disclosureQuarter-end positionAssociated institution31 Mar 2026U.S. SEC EDGAR ↗Record details ↗
235851102DANAHER CORPORATION477,750shares$90,581,400Reported market value$189.6 / reported unit (derived)6.32%Share of this filing tableNo comparable prior disclosureQuarter-end positionAssociated institution31 Mar 2026U.S. SEC EDGAR ↗Record details ↗
92826C839VISA INC265,330shares$80,193,339Reported market value$302.24 / reported unit (derived)5.60%Share of this filing tableNo comparable prior disclosureQuarter-end positionAssociated institution31 Mar 2026U.S. SEC EDGAR ↗Record details ↗
57636Q104MASTERCARD INCORPORATED147,000shares$73,450,020Reported market value$499.66 / reported unit (derived)5.13%Share of this filing tableNo comparable prior disclosureQuarter-end positionAssociated institution31 Mar 2026U.S. SEC EDGAR ↗Record details ↗
G0403H108AON PLC213,860shares$69,029,731Reported market value$322.78 / reported unit (derived)4.82%Share of this filing tableNo comparable prior disclosureQuarter-end positionAssociated institution31 Mar 2026U.S. SEC EDGAR ↗Record details ↗
594918104MICROSOFT CORP169,450shares$62,725,307Reported market value$370.17 / reported unit (derived)4.38%Share of this filing tableNo comparable prior disclosureQuarter-end positionAssociated institution31 Mar 2026U.S. SEC EDGAR ↗Record details ↗
30303M102META PLATFORMS INC105,710shares$60,479,862Reported market value$572.13 / reported unit (derived)4.22%Share of this filing tableNo comparable prior disclosureQuarter-end positionAssociated institution31 Mar 2026U.S. SEC EDGAR ↗Record details ↗
883556102THERMO FISHER SCIENTIFIC INC121,000shares$59,475,130Reported market value$491.53 / reported unit (derived)4.15%Share of this filing tableNo comparable prior disclosureQuarter-end positionAssociated institution31 Mar 2026U.S. SEC EDGAR ↗Record details ↗
929160109VULCAN MATLS CO214,200shares$58,326,660Reported market value$272.3 / reported unit (derived)4.07%Share of this filing tableNo comparable prior disclosureQuarter-end positionAssociated institution31 Mar 2026U.S. SEC EDGAR ↗Record details ↗
45167R104IDEX CORP264,300shares$50,098,065Reported market value$189.55 / reported unit (derived)3.50%Share of this filing tableNo comparable prior disclosureQuarter-end positionAssociated institution31 Mar 2026U.S. SEC EDGAR ↗Record details ↗
023135106AMAZON COM INC222,500shares$46,340,075Reported market value$208.27 / reported unit (derived)3.23%Share of this filing tableNo comparable prior disclosureQuarter-end positionAssociated institution31 Mar 2026U.S. SEC EDGAR ↗Record details ↗
422806208HEICO CORP NEW188,979shares$39,891,577Reported market value$211.09 / reported unit (derived)2.78%Share of this filing tableNo comparable prior disclosureQuarter-end positionAssociated institution31 Mar 2026U.S. SEC EDGAR ↗Record details ↗
09073M104BIO-TECHNE CORP653,200shares$34,136,232Reported market value$52.26 / reported unit (derived)2.38%Share of this filing tableNo comparable prior disclosureQuarter-end positionAssociated institution31 Mar 2026U.S. SEC EDGAR ↗Record details ↗
G1151C101ACCENTURE PLC IRELAND170,700shares$33,848,103Reported market value$198.29 / reported unit (derived)2.36%Share of this filing tableNo comparable prior disclosureQuarter-end positionAssociated institution31 Mar 2026U.S. SEC EDGAR ↗Record details ↗
032654105ANALOG DEVICES INC106,350shares$33,834,189Reported market value$318.14 / reported unit (derived)2.36%Share of this filing tableNo comparable prior disclosureQuarter-end positionAssociated institution31 Mar 2026U.S. SEC EDGAR ↗Record details ↗
294429105EQUIFAX INC187,605shares$33,782,032Reported market value$180.07 / reported unit (derived)2.36%Share of this filing tableNo comparable prior disclosureQuarter-end positionAssociated institution31 Mar 2026U.S. SEC EDGAR ↗Record details ↗
882508104TEXAS INSTRS INC160,100shares$31,081,814Reported market value$194.14 / reported unit (derived)2.17%Share of this filing tableNo comparable prior disclosureQuarter-end positionAssociated institution31 Mar 2026U.S. SEC EDGAR ↗Record details ↗
829933100SIRIUSXM HOLDINGS INC1,293,000shares$29,842,440Reported market value$23.08 / reported unit (derived)2.08%Share of this filing tableNo comparable prior disclosureQuarter-end positionAssociated institution31 Mar 2026U.S. SEC EDGAR ↗Record details ↗
530307305LIBERTY BROADBAND CORP576,000shares$28,972,800Reported market value$50.3 / reported unit (derived)2.02%Share of this filing tableNo comparable prior disclosureQuarter-end positionAssociated institution31 Mar 2026U.S. SEC EDGAR ↗Record details ↗
504922105LABCORP HOLDINGS INC99,050shares$26,427,531Reported market value$266.81 / reported unit (derived)1.84%Share of this filing tableNo comparable prior disclosureQuarter-end positionAssociated institution31 Mar 2026U.S. SEC EDGAR ↗Record details ↗
679580100OLD DOMINION FREIGHT LINE IN132,000shares$25,792,800Reported market value$195.4 / reported unit (derived)1.80%Share of this filing tableNo comparable prior disclosureQuarter-end positionAssociated institution31 Mar 2026U.S. SEC EDGAR ↗Record details ↗
573284106MARTIN MARIETTA MATLS INC39,775shares$23,414,747Reported market value$588.68 / reported unit (derived)1.63%Share of this filing tableNo comparable prior disclosureQuarter-end positionAssociated institution31 Mar 2026U.S. SEC EDGAR ↗Record details ↗
37940X102GLOBAL PMTS INC335,000shares$22,545,500Reported market value$67.3 / reported unit (derived)1.57%Share of this filing tableNo comparable prior disclosureQuarter-end positionAssociated institution31 Mar 2026U.S. SEC EDGAR ↗Record details ↗
22160N109COSTAR GROUP INC517,025shares$20,856,789Reported market value$40.34 / reported unit (derived)1.46%Share of this filing tableNo comparable prior disclosureQuarter-end positionAssociated institution31 Mar 2026U.S. SEC EDGAR ↗Record details ↗
45168D104IDEXX LABS INC35,300shares$19,834,717Reported market value$561.89 / reported unit (derived)1.38%Share of this filing tableNo comparable prior disclosureQuarter-end positionAssociated institution31 Mar 2026U.S. SEC EDGAR ↗Record details ↗
79466L302SALESFORCE COM INC81,500shares$15,213,605Reported market value$186.67 / reported unit (derived)1.06%Share of this filing tableNo comparable prior disclosureQuarter-end positionAssociated institution31 Mar 2026U.S. SEC EDGAR ↗Record details ↗
004498101ACI WORLDWIDE INC367,700shares$15,079,377Reported market value$41.01 / reported unit (derived)1.05%Share of this filing tableNo comparable prior disclosureQuarter-end positionAssociated institution31 Mar 2026U.S. SEC EDGAR ↗Record details ↗
58733R102MERCADOLIBRE INC8,000shares$13,832,160Reported market value$1,729.02 / reported unit (derived)0.97%Share of this filing tableNo comparable prior disclosureQuarter-end positionAssociated institution31 Mar 2026U.S. SEC EDGAR ↗Record details ↗
71385M107PERIMETER SOLUTIONS INC509,400shares$12,439,548Reported market value$24.42 / reported unit (derived)0.87%Share of this filing tableNo comparable prior disclosureQuarter-end positionAssociated institution31 Mar 2026U.S. SEC EDGAR ↗Record details ↗
501889208LKQ CORP408,000shares$11,982,960Reported market value$29.37 / reported unit (derived)0.84%Share of this filing tableNo comparable prior disclosureQuarter-end positionAssociated institution31 Mar 2026U.S. SEC EDGAR ↗Record details ↗
45687V106INGERSOLL RAND INC133,200shares$10,671,984Reported market value$80.12 / reported unit (derived)0.74%Share of this filing tableNo comparable prior disclosureQuarter-end positionAssociated institution31 Mar 2026U.S. SEC EDGAR ↗Record details ↗
298736109EURONET WORLDWIDE INC160,000shares$10,619,200Reported market value$66.37 / reported unit (derived)0.74%Share of this filing tableNo comparable prior disclosureQuarter-end positionAssociated institution31 Mar 2026U.S. SEC EDGAR ↗Record details ↗
68389X105ORACLE CORP55,000shares$8,091,050Reported market value$147.11 / reported unit (derived)0.56%Share of this filing tableNo comparable prior disclosureQuarter-end positionAssociated institution31 Mar 2026U.S. SEC EDGAR ↗Record details ↗
N07059210ASML HLDG NV5,500shares$7,264,565Reported market value$1,320.83 / reported unit (derived)0.51%Share of this filing tableNo comparable prior disclosureQuarter-end positionAssociated institution31 Mar 2026U.S. SEC EDGAR ↗Record details ↗
874039100TAIWAN SEMICONDUCTOR MANUFAC20,000shares$6,759,000Reported market value$337.95 / reported unit (derived)0.47%Share of this filing tableNo comparable prior disclosureQuarter-end positionAssociated institution31 Mar 2026U.S. SEC EDGAR ↗Record details ↗
530307107LIBERTY BROADBAND CORP130,000shares$6,528,600Reported market value$50.22 / reported unit (derived)0.46%Share of this filing tableNo comparable prior disclosureQuarter-end positionAssociated institution31 Mar 2026U.S. SEC EDGAR ↗Record details ↗
67066G104NVIDIA CORPORATION35,000shares$6,104,000Reported market value$174.4 / reported unit (derived)0.43%Share of this filing tableNo comparable prior disclosureQuarter-end positionAssociated institution31 Mar 2026U.S. SEC EDGAR ↗Record details ↗
12514G108CDW CORP36,250shares$4,386,975Reported market value$121.02 / reported unit (derived)0.31%Share of this filing tableNo comparable prior disclosureQuarter-end positionAssociated institution31 Mar 2026U.S. SEC EDGAR ↗Record details ↗
G54950103LINDE PLC7,200shares$3,569,472Reported market value$495.76 / reported unit (derived)0.25%Share of this filing tableNo comparable prior disclosureQuarter-end positionAssociated institution31 Mar 2026U.S. SEC EDGAR ↗Record details ↗
92338C103VERALTO CORP40,000shares$3,536,800Reported market value$88.42 / reported unit (derived)0.25%Share of this filing tableNo comparable prior disclosureQuarter-end positionAssociated institution31 Mar 2026U.S. SEC EDGAR ↗Record details ↗
73278L105POOL CORP15,000shares$3,034,950Reported market value$202.33 / reported unit (derived)0.21%Share of this filing tableNo comparable prior disclosureQuarter-end positionAssociated institution31 Mar 2026U.S. SEC EDGAR ↗Record details ↗
759916109REPLIGEN CORP25,500shares$3,004,410Reported market value$117.82 / reported unit (derived)0.21%Share of this filing tableNo comparable prior disclosureQuarter-end positionAssociated institution31 Mar 2026U.S. SEC EDGAR ↗Record details ↗
78409V104S&P GLOBAL INC7,050shares$2,998,647Reported market value$425.34 / reported unit (derived)0.21%Share of this filing tableNo comparable prior disclosureQuarter-end positionAssociated institution31 Mar 2026U.S. SEC EDGAR ↗Record details ↗
20030N101COMCAST CORP NEW47,000shares$1,349,370Reported market value$28.71 / reported unit (derived)0.09%Share of this filing tableNo comparable prior disclosureQuarter-end positionAssociated institution31 Mar 2026U.S. SEC EDGAR ↗Record details ↗
34959J108FORTIVE CORP22,500shares$1,243,800Reported market value$55.28 / reported unit (derived)0.09%Share of this filing tableNo comparable prior disclosureQuarter-end positionAssociated institution31 Mar 2026U.S. SEC EDGAR ↗Record details ↗
31488V107FERGUSON ENTERPRISES INC5,200shares$1,212,952Reported market value$233.26 / reported unit (derived)0.08%Share of this filing tableNo comparable prior disclosureQuarter-end positionAssociated institution31 Mar 2026U.S. SEC EDGAR ↗Record details ↗
032095101AMPHENOL CORP9,200shares$1,162,420Reported market value$126.35 / reported unit (derived)0.08%Share of this filing tableNo comparable prior disclosureQuarter-end positionAssociated institution31 Mar 2026U.S. SEC EDGAR ↗Record details ↗
16119P108CHARTER COMMUNICATIONS INC650shares$140,322Reported market value$215.88 / reported unit (derived)0.01%Share of this filing tableNo comparable prior disclosureQuarter-end positionAssociated institution31 Mar 2026U.S. SEC EDGAR ↗Record details ↗

Figures retain their source’s meaning. Unknown is not zero. Dates, share classes and option exposures may differ; source-table coverage is not a complete personal portfolio.

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