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Asset manager

Weitz Investment Management, Inc.

13F for the quarter to June 30, 2026, filed August 12, 2026 · SEC CIK 883965

Reported value
$1.4bn
79% in companies we cover
Positions we cover
45
Largest DHR 6.5%
Copy, a year
+11.4%
S&P 500 +13.9%
Copy Sharpe ratio
0.57
S&P 500 0.77

How copying its 13F would have done

$10.0k$20.0k$40.0k 2013201520172019202120232025 $55.9k$41.8k
CopyS&P 500 $10,000 copying Weitz Investment Management, Inc.'s filed holdings in companies we cover from August 9, 2013, buying on the first trading day after each 13F was filed and holding until the next, against the S&P 500 (total return). Marked weekly, log scale. Before costs and taxes; misses trading within each quarter and anything 13F does not show (shorts, cash, bonds, non-US holdings).

Biggest drop −36.7% (S&P 500 −31.8%); beta 1.05; alpha −2.4% a year (t = −1.11); last 12 months +10.9% against +12.1%.

Reported value by quarter

Weitz Investment Management, Inc.: 13F reported value Total value of all positions in each quarter's 13F, as filed (values before 2023 were filed in thousands of dollars and are converted).
$0 $500B $1T $1.5T $2T Reported value, 2013-06-30: $2.5B Reported value, 2013-09-30: $2.7B Reported value, 2013-12-31: $3B Reported value, 2014-03-31: $3.1B Reported value, 2014-06-30: $3.3B Reported value, 2014-09-30: $3.4B Reported value, 2014-12-31: $3.6B Reported value, 2015-03-31: $3.7B Reported value, 2015-06-30: $3.5B Reported value, 2015-09-30: $3.2B Reported value, 2015-12-31: $2.9B Reported value, 2016-03-31: $2.8B Reported value, 2016-06-30: $2.7B Reported value, 2016-09-30: $2.6B Reported value, 2016-12-31: $2.5B Reported value, 2017-03-31: $2.4B Reported value, 2017-06-30: $2.3B Reported value, 2017-09-30: $2.4B Reported value, 2017-12-31: $2.3B Reported value, 2018-03-31: $2.3B Reported value, 2018-06-30: $2.3B Reported value, 2018-09-30: $2.4B Reported value, 2018-12-31: $2.1B Reported value, 2019-03-31: $2.4B Reported value, 2019-06-30: $2.5B Reported value, 2019-09-30: $2.4B Reported value, 2019-12-31: $2.5B Reported value, 2020-03-31: $1.9B Reported value, 2020-06-30: $2B Reported value, 2020-09-30: $2.1B Reported value, 2020-12-31: $2.3B Reported value, 2021-03-31: $2.2B Reported value, 2021-06-30: $2.3B Reported value, 2021-09-30: $2.4B Reported value, 2021-12-31: $2.5B Reported value, 2022-03-31: $2.2B Reported value, 2022-06-30: $1.9B Reported value, 2022-09-30: $1.7B Reported value, 2022-12-31: $1.7T Reported value, 2023-03-31: $1.7B Reported value, 2023-06-30: $1.9B Reported value, 2023-09-30: $1.8B Reported value, 2023-12-31: $1.9B Reported value, 2024-03-31: $2B Reported value, 2024-06-30: $1.9B Reported value, 2024-09-30: $2B Reported value, 2024-12-31: $1.9B Reported value, 2025-03-31: $1.9B Reported value, 2025-06-30: $1.9B Reported value, 2025-09-30: $1.8B Reported value, 2025-12-31: $1.7B Reported value, 2026-03-31: $1.4B Reported value, 2026-06-30: $1.4B 2013-06-30 2016-03-31 2018-12-31 2021-09-30 2026-06-30 $1.4B
View chart data
Period Reported value
2013-06-30 $2.5B
2013-09-30 $2.7B
2013-12-31 $3B
2014-03-31 $3.1B
2014-06-30 $3.3B
2014-09-30 $3.4B
2014-12-31 $3.6B
2015-03-31 $3.7B
2015-06-30 $3.5B
2015-09-30 $3.2B
2015-12-31 $2.9B
2016-03-31 $2.8B
2016-06-30 $2.7B
2016-09-30 $2.6B
2016-12-31 $2.5B
2017-03-31 $2.4B
2017-06-30 $2.3B
2017-09-30 $2.4B
2017-12-31 $2.3B
2018-03-31 $2.3B
2018-06-30 $2.3B
2018-09-30 $2.4B
2018-12-31 $2.1B
2019-03-31 $2.4B
2019-06-30 $2.5B
2019-09-30 $2.4B
2019-12-31 $2.5B
2020-03-31 $1.9B
2020-06-30 $2B
2020-09-30 $2.1B
2020-12-31 $2.3B
2021-03-31 $2.2B
2021-06-30 $2.3B
2021-09-30 $2.4B
2021-12-31 $2.5B
2022-03-31 $2.2B
2022-06-30 $1.9B
2022-09-30 $1.7B
2022-12-31 $1.7T
2023-03-31 $1.7B
2023-06-30 $1.9B
2023-09-30 $1.8B
2023-12-31 $1.9B
2024-03-31 $2B
2024-06-30 $1.9B
2024-09-30 $2B
2024-12-31 $1.9B
2025-03-31 $1.9B
2025-06-30 $1.9B
2025-09-30 $1.8B
2025-12-31 $1.7B
2026-03-31 $1.4B
2026-06-30 $1.4B

Holdings and moves

CompanyShare of portfolioValueSharesChange in shares
DHRDanaher Corporation6.46%$93.2m489.5K+2.5% Added
VVisa Inc.6.30%$91.0m265.3K0.0%
MAMastercard5.17%$74.7m145.3K−1.1% Reduced
AONAon plc4.91%$70.9m213.9K0.0%
VMCVulcan Materials Company4.16%$60.1m203.8K−4.9% Reduced
METAMeta Platforms4.02%$58.0m103.0K−2.6% Reduced
TMOThermo Fisher Scientific4.00%$57.8m115.2K−4.8% Reduced
IEXIDEX Corporation3.97%$57.3m252.4K−4.5% Reduced
MSFTMicrosoft Corporation3.96%$57.1m153.2K−9.6% Reduced
AMZNAmazon3.59%$51.8m217.5K−2.2% Reduced
TECHBio-Techne2.66%$38.4m543.2K−16.8% Reduced
SIRISirius XM Holdings Inc.2.43%$35.1m1.19M−8.1% Reduced
ADIAnalog Devices2.34%$33.8m85.2K−19.9% Reduced
EFXEquifax2.11%$30.5m192.0K+2.3% Added
LHLabcorp1.92%$27.7m99.0K0.0%
MLMMartin Marietta Materials1.89%$27.3m47.4K+19.1% Added
GPNGlobal Payments1.76%$25.4m350.0K+4.5% Added
TXNTexas Instruments1.61%$23.2m77.9K−51.3% Reduced
IDXXIdexx Laboratories1.29%$18.6m35.3K0.0%
ACIWACI Worldwide, Inc.1.28%$18.5m367.7K0.0%
PRMPerimeter Solutions, Inc.1.11%$16.1m450.8K−11.5% Reduced
MELIMercadolibre Inc1.08%$15.6m9.2K+15.0% Added
ACNAccenture1.03%$14.9m119.7K−29.9% Reduced
IRIngersoll Rand0.92%$13.3m161.7K+21.4% Added
CSGPCoStar Group0.83%$12.0m423.2K−18.2% Reduced
EEFTEuronet Worldwide, Inc.0.81%$11.7m160.0K0.0%
ASMLAsml Holding NV0.76%$10.9m5.5K0.0%
LKQLKQ Corp0.74%$10.7m408.0K0.0%
NFLXNetflix0.73%$10.5m147.2KNew
TSMTaiwan Semiconductor Manufacturing Co LTD0.66%$9.6m20.0K0.0%
ORCLOracle Corporation0.56%$8.1m55.0K0.0%
COFCapital One0.56%$8.0m40.0KNew
CRMSalesforce0.54%$7.7m49.3K−39.5% Reduced
NVDANVIDIA Corporation0.48%$7.0m35.0K0.0%
VLTOVeralto0.48%$6.9m77.5K+93.8% Added
RGENRepligen Corp0.39%$5.6m40.8K+60.0% Added
LINLinde plc0.26%$3.7m7.1K−1.4% Reduced
MTDMettler Toledo0.23%$3.3m2.5KNew
POOLPool Corp0.22%$3.2m15.0K0.0%
SPGIS&P Global0.20%$2.9m7.2K+1.4% Added
APHAmphenol0.11%$1.6m9.2K0.0%
FTVFortive0.09%$1.3m21.8K−3.3% Reduced
FERGFerguson Enterprises0.09%$1.2m5.2K0.0%
CMCSAComcast0.08%$1.2m47.0K0.0%
CHTRCharter Communications0.01%$92,4376500.0%
CompanyBought (value)Shares
NFLXNetflix$10.5m147.2K
COFCapital One$8.0m40.0K
MLMMartin Marietta Materials$4.4m7.6K
VLTOVeralto$3.3m37.5K
MTDMettler Toledo$3.3m2.5K
IRIngersoll Rand$2.3m28.5K
DHRDanaher Corporation$2.2m11.8K
RGENRepligen Corp$2.1m15.3K
MELIMercadolibre Inc$2.0m1.2K
GPNGlobal Payments$1.1m15.0K
EFXEquifax$694,4004.4K
SPGIS&P Global$40,726100

Change in shares on the previous quarter's 13F, valued at this quarter's reported price.

CompanySold (value)Shares
ODFLOld Dominion−$25.8m−132.0K
TXNTexas Instruments−$24.5m−82.2K
ADIAnalog Devices−$8.4m−21.1K
TECHBio-Techne−$7.8m−110.0K
ACNAccenture−$6.3m−51.0K
MSFTMicrosoft Corporation−$6.1m−16.3K
CRMSalesforce−$5.0m−32.2K
CDWCDW Corporation−$4.4m−36.3K
SIRISirius XM Holdings Inc.−$3.1m−105.0K
VMCVulcan Materials Company−$3.1m−10.4K
TMOThermo Fisher Scientific−$2.9m−5.8K
IEXIDEX Corporation−$2.7m−11.9K
CSGPCoStar Group−$2.7m−93.8K
PRMPerimeter Solutions, Inc.−$2.1m−58.6K
METAMeta Platforms−$1.5m−2.8K

Change in shares on the previous quarter's 13F, valued at this quarter's reported price.

CompanyValue last quarterShares
ODFLOld Dominion$25.8m132.0K
CDWCDW Corporation$4.4m36.3K
  • Financials25.0%
  • Health Care21.5%
  • Technology16.9%
  • Industrials11.1%
  • Materials9.4%
  • Communication Services9.2%
  • Consumer Discretionary5.8%
  • Real Estate1.1%

Share of the value held in companies we cover, by sector.

PeriodCopy, a yearS&P 500SharpeS&P 500Biggest dropBeta
Whole backtestAugust 9, 2013 to November 2, 2026+11.4%+13.9%0.570.77−36.7%1.05
2018 onwardsJanuary 5, 2018 to November 2, 2026+10.1%+13.9%0.440.66−36.7%1.04
Last three yearsNovember 3, 2023 to November 2, 2026+11.3%+21.8%0.471.16−19.1%0.87
Last yearNovember 7, 2025 to November 2, 2026+13.4%+14.2%0.630.84−15.8%0.78

From SEC Form 13F data sets. A 13F lists long positions in US-listed shares at the quarter's end, filed up to 45 days later; it does not show shorts, cash, bonds, non-US holdings or trades within the quarter. Positions in companies outside our coverage are not listed here. Research, not investment advice.