13F

Investor

AVENIR CORP

CIK 0001033475 · filed 2026-05-14 · SEC filing

13F book

$820.5M

Positions

72

5 new · 4 sold

Largest name

11.0%

Microsoft Corp · MSFT

Est. mark

−$89.3M

Price effect on 67 names still held. Flow −$11.9M.
NameTickerSharesValueWeightEst. markChange
Microsoft CorpMSFT244.1K$90.4M11.0%−$27.7MCut−$28.3M
Markel Group Inc.MKL45.8K$87.7M10.7%−$10.8MCut−$12M
Amazon Com IncAMZN375.3K$78.2M9.5%−$8.46MCut−$9.26M
American Tower Corp New415.4K$71.7M8.7%−$1.24MCut−$1.66M
Oreilly Automotive Inc749.7K$69.2M8.4%$824.7KCut$101.2K
Apple Inc.AAPL228.9K$58.1M7.1%−$4.14MCut−$4.59M
Berkshire Hathaway Inc Del108.9K$52.2M6.4%−$2.55MCut−$2.96M
Copart IncCPRT1.11M$36.8M4.5%−$6.6MCut−$6.88M
Mastercard IncMA65.1K$32.5M4.0%−$4.49MAdded−$3.5M
Adobe Inc.ADBE126.6K$30.8M3.8%−$12.2MAdded−$9.23M
Waystar Hldg Corp973.3K$23.5M2.9%−$6.45MAdded−$981.5K
Amentum Holdings, Inc.AMTM841.1K$21.9M2.7%−$2.46MCut−$2.74M
Universal Display Corp230.2K$21.1M2.6%−$5.78MCut−$5.78M
Lockheed Martin CorpLMT32K$19.3M2.4%$3.86MCut−$11.8M
Bok Finl Corp125K$16M1.9%$1.2MCut$1.19M
Visa Inc.V41.1K$12.4M1.5%−$1.99MCut−$2.14M
Mplx Lp186.9K$10.7M1.3%$691.5KHeld
Sba Communications Corp NewSBAC61.7K$10.6M1.3%−$1.32MCut−$1.54M
Energy Transfer L P451.3K$8.71M1.1%$1.27MHeld
Energy Recovery, Inc.ERII817.8K$8.23M1.0%−$2.8MCut−$4.84M
Atomera IncATOM1.46M$5.57M0.7%$983KAdded$4.21M
Kinder Morgan Inc Del145.2K$4.87M0.6%$876.9KHeld
Enterprise Prods Partners L125.5K$4.75M0.6%$725.3KHeld
Berkshire Hathaway Inc Del6$4.31M0.5%−$220KHeld
Alphabet Inc10.8K$3.09M0.4%−$290.2KHeld
Cytosorbents CorpCTSO5.22M$2.95M0.4%−$380.2KCut−$389.4K
Equinix IncEQIX2.74K$2.69M0.3%$586.8KHeld
Starwood Ppty Tr Inc136.2K$2.35M0.3%−$107.6KCut−$117.8K
Sprott Asset Management Lp60.3K$2.14M0.3%$145.9KHeld
Molina Healthcare, Inc.MOH14.8K$1.97M0.2%New
Axos Financial, Inc.AX20.8K$1.77M0.2%−$22.2KHeld
American Intl Group Inc20.2K$1.52M0.2%−$207.9KHeld
Coherent Corp.COHR6.11K$1.46M0.2%$327.7KHeld
Exxon Mobil Corp8.35K$1.42M0.2%$411.6KHeld
BrightSpire Capital, Inc.BRSP221.9K$1.24M0.2%$0Held
Bank America Corp24.7K$1.2M0.1%−$154.3KHeld
Vanguard Index Fds1.93K$1.15M0.1%−$57.1KHeld
Black Stone Minerals, L.P.BSM73.9K$1.12M0.1%$135.2KHeld
Adaptive Biotechnologies Cor76.4K$1.06M0.1%−$180.2KHeld
Brookfield Corp22.5K$910.6K0.1%−$122KHeld
Spdr Gold Tr2.11K$909.6K0.1%$71.8KHeld
Lamar Advertising Co/NewLAMR6.78K$858.8K0.1%$543Held
Brookfield Infrast Partners23.1K$833.3K0.1%$31.8KHeld
Gladstone Commercial Corp66.7K$762.9K0.1%$50.7KCut$48.2K
Privia Health Group, Inc.PRVA36.7K$755.8K0.1%−$115.4KHeld
Intel CorpINTC11.4K$502.8K0.1%$82.4KHeld
Costco Whsl Corp New500$498.2K0.1%$67KHeld
Optimizerx CorpOPRX77.3K$485.2K0.1%−$462KHeld
L3harris Technologies Inc1.36K$468.4K0.1%$70KHeld
Carmax IncKMX11K$458.3K0.1%$32.4KCut−$998.5K
Newtekone Inc40.8K$446.8K0.1%−$16.3KHeld
Walmart Inc.WMT3.5K$435.1K0.1%$45.1KHeld
Arista Networks, Inc.ANET3.37K$413.8K0.1%−$27.8KHeld
Virginia Natl Bankshares Cor10.8K$412.6K0.1%−$17.8KHeld
Targa Res Corp1.6K$401.7K0.0%$106.1KHeld
Ccc Intelligent Solutions Hl61K$365.7K0.0%−$118.9KCut−$157.1K
Enovix CorpENVX62.8K$325.4K0.0%−$133.8KHeld
AbbVie Inc.ABBV1.46K$318K0.0%−$16.1KHeld
RTX CorpRTX1.63K$315.2K0.0%$15.5KHeld
Dollar Tree, Inc.DLTR2.86K$313.2K0.0%−$38.6KHeld
Crown Castle Inc.CCI3.24K$263.4K0.0%−$24.5KHeld
Pnc Finl Svcs Group Inc1.27K$263.4K0.0%−$810Held
Ge Aerospace925$262.5K0.0%−$22.4KHeld
Paccar IncPCAR2.25K$259.9K0.0%$13.5KHeld
Disney Walt Co2.61K$251.5K0.0%−$45.4KCut−$49.6K
Burke Herbert Finl Svcs Corp4K$249.2K0.0%−$80Cut−$61.1K
Insulet CorpPODD1.13K$237.1K0.0%New
lululemon athletica inc.LULU1.5K$229.7K0.0%−$82.1KCut−$110.5K
Enbridge Inc3.98K$215.2K0.0%New
Magnite, Inc.MGNI17.7K$210.5K0.0%New
GE Vernova Inc.GEV231$201.6K0.0%New
Triplepoint Venture Growth B11K$54.9K0.0%−$17KHeld

Positions as of Q1 2026. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.