Wallace Weitz — Weitz Investment ManagementSuperinvestor
About Wallace Weitz — Weitz Investment Management’s 13F portfolio
Wallace Weitz — Weitz Investment Management is an institutional investment manager that discloses its US-listed holdings each quarter through an SEC Form 13F filing. As of , Wallace Weitz — Weitz Investment Management reported $1.4B across 49 US-listed positions (). Its largest position is BERKSHIRE HATHAWAY INC DEL (BRK/B) at 9.3% of the reported book, and its ten biggest holdings make up 55% of the portfolio. Browse every manager in the fund managers directory, or see the legendary investors we track on the superinvestors page.
| # | Stock | Price | % of portfolio | Shares | Value |
|---|---|---|---|---|---|
| 1 |  BRK/B BERKSHIRE HATHAWAY INC DEL | — — | 9.3% | 279K | $133.6M |
| 2 |  GOOG ALPHABET INC | — — | 6.5% | 327K | $93.7M |
| 3 |  DHR DANAHER CORPORATION | — — | 6.3% | 478K | $90.6M |
| 4 |  V VISA INC | — — | 5.6% | 265K | $80.2M |
| 5 |  MA MASTERCARD INCORPORATED | — — | 5.1% | 147K | $73.5M |
| 6 |  AON AON PLC | — — | 4.8% | 214K | $69.0M |
| 7 |  MSFT MICROSOFT CORP | — — | 4.4% | 169K | $62.7M |
| 8 |  META META PLATFORMS INC | — — | 4.2% | 106K | $60.5M |
| 9 |  TMO THERMO FISHER SCIENTIFIC INC | — — | 4.2% | 121K | $59.5M |
| 10 |  VMC VULCAN MATLS CO | — — | 4.1% | 214K | $58.3M |
| 11 |  IEX IDEX CORP | — — | 3.5% | 264K | $50.1M |
| 12 |  AMZN AMAZON COM INC | — — | 3.2% | 223K | $46.3M |
| 13 |  HEI-A HEICO CORP NEW | — — | 2.8% | 189K | $39.9M |
| 14 |  TECH BIO-TECHNE CORP | — — | 2.4% | 653K | $34.1M |
| 15 |  ACN ACCENTURE PLC IRELAND | — — | 2.4% | 171K | $33.8M |
| 16 |  ADI ANALOG DEVICES INC | — — | 2.4% | 106K | $33.8M |
| 17 |  EFX EQUIFAX INC | — — | 2.4% | 188K | $33.8M |
| 18 |  TXN TEXAS INSTRS INC | — — | 2.2% | 160K | $31.1M |
| 19 |  SIRI SIRIUSXM HOLDINGS INC | — — | 2.1% | 1.3M | $29.8M |
| 20 |  LBRDK LIBERTY BROADBAND CORP | — — | 2.0% | 576K | $29.0M |
| 21 |  LH LABCORP HOLDINGS INC | — — | 1.8% | 99K | $26.4M |
| 22 |  ODFL OLD DOMINION FREIGHT LINE IN | — — | 1.8% | 132K | $25.8M |
| 23 |  MLM MARTIN MARIETTA MATLS INC | — — | 1.6% | 40K | $23.4M |
| 24 |  GPN GLOBAL PMTS INC | — — | 1.6% | 335K | $22.5M |
| 25 |  CSGP COSTAR GROUP INC | — — | 1.5% | 517K | $20.9M |
Showing 1–25 of 49 positions on this page reported in this 13F.
Tiles are sized by portfolio weight and coloured by sector; the “est.” figure on each tile is the estimated dividend- and split-adjusted return since the first reported quarter — not the manager’s profit or cost basis.
“Est. return” = estimated dividend/split-adjusted return since the first reported quarter — not the manager’s profit or cost basis.
- Technology17%
- Healthcare16%
- Financial Services16%
- Communication Services15%
- Industrials13%
- Unclassified9.3%
- Basic Materials6.8%
- Consumer Cyclical5.0%
- Real Estate1.5%
How this return is calculated
Estimated dividend- and split-adjusted return from the end of the first consecutive reported quarter in which the current holding appears in Bullish Whales’ 13F history, through the manager’s latest reported quarter. Current disclosed holdings only. Start dates differ by holding, changes in position size are not modeled, and positions no longer reported are excluded. Not the manager’s cost basis, purchase date, realized profit or loss, live performance, or portfolio performance.
- AddedMSFTMICROSOFT CORP+16.1%$62.7M
- AddedVMCVULCAN MATLS CO+1.9%$58.3M
- AddedHEI-AHEICO CORP NEW+16.1%$39.9M
- AddedACNACCENTURE PLC IRELAND+6.1%$33.8M
- AddedMELIMERCADOLIBRE INC+116%$13.8M
- NewIRINGERSOLL RAND INC—$10.7M
- NewASMLASML HLDG NV—$7.3M
- NewTSMTAIWAN SEMICONDUCTOR MANUFAC—$6.8M
- NewNVDANVIDIA CORPORATION—$6.1M
- AddedVLTOVERALTO CORP+5.3%$3.5M
- ReducedBRK/BBERKSHIRE HATHAWAY INC DEL−2.8%$133.6M
- ReducedGOOGALPHABET INC−6.1%$93.7M
- ReducedDHRDANAHER CORPORATION−7.0%$90.6M
- ReducedVVISA INC−1.9%$80.2M
- ReducedMAMASTERCARD INCORPORATED−5.7%$73.5M
- ReducedAONAON PLC−2.2%$69.0M
- ReducedMETAMETA PLATFORMS INC−2.8%$60.5M
- ReducedTMOTHERMO FISHER SCIENTIFIC INC−10.3%$59.5M
- ReducedIEXIDEX CORP−32.5%$50.1M
- ReducedTECHBIO-TECHNE CORP−18.6%$34.1M
Reading Wallace Weitz — Weitz Investment Management’s 13F portfolio
Wallace Weitz — Weitz Investment Management’s $1.4B 13F book is spread across 49 reported positions and is concentrated toward its biggest ideas, with the top ten holdings at 55%. The largest positions carry real weight, so how those names perform matters a lot to the overall book. Its five largest positions are BRK/B, GOOG, DHR, V and MA, led by BERKSHIRE HATHAWAY INC DEL (BRK/B) at 9.3% of the portfolio. The heaviest sector exposure is Technology (17%), then Healthcare (16%).
What Wallace Weitz — Weitz Investment Management changed last quarter
Between 2025-12-31 and Q1 2026, Wallace Weitz — Weitz Investment Management was a net seller: it opened 8 new positions and added to 6 more, while trimming 28 and closing 3 outright. Against a 49-name book, that is high turnover, pointing to an active reshuffle of the book. Its largest new or increased position was MICROSOFT CORP (MSFT), and its biggest reduction was BERKSHIRE HATHAWAY INC DEL (BRK/B).
What a 13F does and doesn’t reveal
A 13F captures only Wallace Weitz — Weitz Investment Management’s long positions in US-listed stocks at a single quarter-end, so it is best read as a lagged snapshot rather than a live portfolio. It won’t show shorts, cash, bonds, or holdings listed outside the US, and it never reveals the price paid or the reasoning behind a trade. The signal is in the pattern over time: which names Wallace Weitz — Weitz Investment Management is building up, trimming, or exiting, and how concentrated the book stays from quarter to quarter.
Frequently asked questions
What is an SEC 13F filing?
A Form 13F is a report that every institutional investment manager with at least $100 million in US-listed securities must file with the SEC within 45 days of each quarter's end. It lists the manager's long positions in US-listed stocks and certain options, with the share count and market value of each. Wallace Weitz — Weitz Investment Management's profile on this page is built directly from those filings.
How current is the 13F data on Wallace Weitz — Weitz Investment Management's page?
It reflects Wallace Weitz — Weitz Investment Management's most recently filed 13F, currently the quarter ending Q1 2026. Because managers have up to 45 days after a quarter closes to file, a 13F is always a slightly lagged view rather than a live portfolio. When Wallace Weitz — Weitz Investment Management files its next quarterly report, this page refreshes automatically.
Can I see Wallace Weitz — Weitz Investment Management's complete list of holdings?
This page highlights Wallace Weitz — Weitz Investment Management's largest positions rather than all 49 names in the filing. The complete, position-by-position 13F is public and available from the SEC's EDGAR database under Wallace Weitz — Weitz Investment Management's filings.
Does a 13F show everything Wallace Weitz — Weitz Investment Management owns?
No. A 13F only covers long positions in US-listed stocks and certain options. It leaves out short positions, cash, bonds, commodities, foreign-listed stocks, and private holdings, so it is a partial view of Wallace Weitz — Weitz Investment Management's book rather than its full strategy or total assets.
Is 13F data investment advice?
No. Everything here is educational. 13F positions are disclosed with a delay, cover only long US-listed holdings, and never explain why Wallace Weitz — Weitz Investment Management made a trade or at what price. Treat it as a research lens, not a recommendation, and speak with a licensed financial advisor before making investment decisions.
Not investment advice. Holdings data comes from public SEC Form 13F filings, which are filed with a delay of up to 45 days and may be amended later. It describes historical, disclosed positions in US-listed securities only, meaning no shorts, cash, or foreign holdings, and it is not a recommendation. Always do your own research and speak with a licensed financial advisor before making investment decisions.