Avenir Corp.

In its 13F for Q4 2024 (holdings as of December 31, 2024, filed February 13, 2025), Avenir Corp. reported 69 stock positions worth $976.8 million. Its top holding was Microsoft (MSFT) at 11.8% of the portfolio, followed by Markel (MKL, 9.6%) and Amazon.com (AMZN, 9.1%). Compared with Q3 2024, it opened 3 new positions, added to 7 and reduced 25. The biggest buy was Waystar (WAY, shares +205%) and the biggest sale American Tower (AMT, shares −4%).

Most Recent 13F
Q2 2026
Location
ALEXANDRIA, VA
CIK
0001033475
Portfolio Value
$976.8M (Q4 2024)
SEC Filing
0001033475-25-000003 ↗ filed Feb 13, 2025

Holdings Value

0$500.0M$1.0B$1.5B Q1 2024: $1.2B Q1 2024 Q2 2024: $1.0B Q2 2024 Q3 2024: $991.7M Q3 2024 Q4 2024: $976.8M $976.8M Q4 2024 Q1 2025: $953.0M Q1 2025 Q2 2025: $972.9M Q2 2025 Q3 2025: $960.1M Q3 2025 Q4 2025: $921.7M Q4 2025 Q1 2026: $820.5M Q1 2026 Q2 2026: $820.7M Q2 2026

Holdings 69 stocks · $976.8M
MSFT Microsoft Corp. 11.81% 273,608 $115.3M Reduce -5.8%
MKL Markel Group Inc. 9.64% 54,568 $94.2M Reduce -7.4%
AMZN Amazon.com Inc. 9.13% 406,500 $89.2M Reduce -3.4%
AMT American Tower Corp. 8.23% 438,062 $80.3M Reduce -4.5%
ORLY O'reilly Automotive Inc. 7.40% 60,951 $72.3M Reduce -5.2%
CPRT Copart Inc. 6.73% 1,144,948 $65.7M Reduce -7.0%
AAPL Apple Inc. 6.49% 253,297 $63.4M Reduce -4.4%
BRK.B Berkshire Hathaway Inc. Class B 5.33% 114,767 $52.0M Reduce -3.4%
LULU Lululemon Athletica Inc. 4.83% 123,305 $47.2M Add +4.8%
LMT Lockheed Martin Corp. 3.58% 71,879 $34.9M Reduce -4.4%
MA Mastercard Inc. Class A 3.57% 66,172 $34.8M Reduce -3.2%
OLED Universal Display Corp. 2.94% 196,576 $28.7M Reduce -1.3%
WAY Waystar Holding Corp. 2.22% 590,244 $21.7M Add +205.3%
CCC CCC Intelligent Solutions Ho 2.09% 1,736,507 $20.4M Reduce -5.8%
KMX Carmax Inc. 1.94% 232,170 $19.0M Reduce -1.1%
ERII Energy Recovery Inc. 1.70% 1,131,373 $16.6M Reduce -7.9%
V Visa Inc. Class A 1.38% 42,738 $13.5M Reduce -11.2%
SBAC SBA Communications Corp. 1.38% 66,045 $13.5M Add +20.0%
BOKF Bok Financial Corporation 1.37% 125,710 $13.4M Reduce -0.9%
AES AES Corp. 1.02% 774,228 $10.0M Reduce -5.5%
MPLX MPLX LP 0.90% 183,294 $8.8M Reduce -0.5%
ET Energy Transfer LP 0.88% 438,662 $8.6M Reduce -0.5%
ATOM Atomera Inc. 0.61% 516,525 $6.0M Add +32.2%
BRK.A Berkshire Hathaway Inc. Class A 0.42% 6 $4.1M No change
AMTM Amentum Holdings Inc. 0.42% 193,470 $4.1M New
KMI Kinder Morgan Inc. 0.41% 147,300 $4.0M No change
EPD Enterprise Products Partners 0.40% 123,578 $3.9M No change
CTSO Cytosorbents Corp. 0.29% 3,093,946 $2.8M Add +4.0%
EQIX Equinix Inc. 0.26% 2,741 $2.6M No change
GOOG Alphabet Inc. Class C 0.21% 10,770 $2.1M No change
AIG American International Group 0.16% 21,280 $1.5M No change
AX Axos Financial Inc. 0.15% 20,790 $1.5M No change
STWD Starwood Property Trust Inc. 0.15% 76,393 $1.4M No change
DBRG Digitalbridge Group Inc. 0.14% 125,539 $1.4M Reduce -25.2%
BRSP Brightspire Capital Inc. 0.13% 221,900 $1.3M Add +4.0%
GOOD Gladstone Commercial Corp. 0.11% 66,988 $1.1M No change
BAC Bank of America Corp. filed as BANK AMERICA CORP 0.11% 24,740 $1.1M Reduce -20.1%
BSM Black Stone Minerals LP 0.11% 73,900 $1.1M No change
VOO Vanguard S&P 500 ETF 0.11% 1,930 $1.0M No change
XOM Exxon Mobil Corp. 0.10% 8,784 $945K No change
BN Brookfield Corp. 0.09% 15,000 $862K No change
PHYS Sprott Physical Gold Trust 0.08% 38,860 $783K No change
BIP Brookfield Infrastructure Pa 0.08% 23,072 $733K No change
PRVA Privia Health Group Inc. 0.07% 36,745 $718K No change
COHR Coherent Corp. 0.06% 6,110 $579K No change
MGNI Magnite Inc. 0.06% 35,000 $557K No change
GLD SPDR Gold Shares 0.05% 2,114 $512K No change
NEWT Newtekone Inc. 0.05% 37,800 $483K No change
WBA Walgreens Boots Alliance Inc. 0.05% 51,131 $477K Reduce -17.2%
COST Costco Wholesale Corp. 0.05% 500 $458K No change
ADPT Adaptive Biotechnologies 0.05% 76,365 $458K No change
ENVX Enovix Corp. 0.04% 38,240 $416K Add +33.1%
VABK Virginia National Bankshares 0.04% 10,800 $413K No change
OPRX Optimizerx Corp. 0.04% 77,260 $375K Reduce -12.5%
WMT Walmart Inc. 0.03% 3,588 $324K No change
DIS The Walt Disney Co. filed as DISNEY WALT CO 0.03% 2,646 $295K No change
CCI Crown Castle Inc. 0.03% 3,240 $294K No change
TRGP Targa Resources Corp. 0.03% 1,602 $286K No change
LHX L3HARRIS Technologies Inc. 0.03% 1,357 $285K No change
ABBV Abbvie Inc. 0.03% 1,462 $260K No change
LUNA Luna Innovations Inc. 0.03% 119,080 $257K Reduce -56.2%
PNC PNC Financial Services Group 0.03% 1,266 $244K No change
BHRB Burke & Herbert Financial SE 0.02% 3,900 $243K New
PCAR Paccar Inc. 0.02% 2,250 $234K No change
INTC Intel Corp. 0.02% 11,393 $228K No change
ORCL Oracle Corp. 0.02% 1,350 $225K No change
DLTR Dollar Tree Inc. 0.02% 2,860 $214K Reduce -64.0%
DENN Denny's Corp. 0.02% 30,690 $186K No change
TPVG Triplepoint Venture Growth B 0.01% 10,000 $74K New

Portfolio Sells Q3 2024 → Q4 2024
AMT American Tower Corp. Reduce -4.5% 8.23% −2.53
OLED Universal Display Corp. Reduce -1.3% 2.94% −1.27
LMT Lockheed Martin Corp. Reduce -4.4% 3.58% −0.85
MSFT Microsoft Corp. Reduce -5.8% 11.81% −0.80
AES AES Corp. Reduce -5.5% 1.02% −0.64
ERII Energy Recovery Inc. Reduce -7.9% 1.70% −0.45
BRK.B Berkshire Hathaway Inc. Class B Reduce -3.4% 5.33% −0.19
DBRG Digitalbridge Group Inc. Reduce -25.2% 0.14% −0.09
ORLY O'reilly Automotive Inc. Reduce -5.2% 7.40% −0.06
LUNA Luna Innovations Inc. Reduce -56.2% 0.03% −0.04
DLTR Dollar Tree Inc. Reduce -64.0% 0.02% −0.03
OPRX Optimizerx Corp. Reduce -12.5% 0.04% −0.03
BAC Bank of America Corp. Reduce -20.1% 0.11% −0.01
WBA Walgreens Boots Alliance Inc. Reduce -17.2% 0.05% −0.01
CCC CCC Intelligent Solutions Ho Reduce -5.8% 2.09% +0.03
BOKF Bok Financial Corporation Reduce -0.9% 1.37% +0.03
V Visa Inc. Class A Reduce -11.2% 1.38% +0.05
MPLX MPLX LP Reduce -0.5% 0.90% +0.07
KMX Carmax Inc. Reduce -1.1% 1.94% +0.11
MA Mastercard Inc. Class A Reduce -3.2% 3.57% +0.16
ET Energy Transfer LP Reduce -0.5% 0.88% +0.17
CPRT Copart Inc. Reduce -7.0% 6.73% +0.22
AAPL Apple Inc. Reduce -4.4% 6.49% +0.27
MKL Markel Group Inc. Reduce -7.4% 9.64% +0.32
AMZN Amazon.com Inc. Reduce -3.4% 9.13% +1.23

Portfolio Buys Q3 2024 → Q4 2024
WAY Waystar Holding Corp. Add +205.3% 2.22% +1.67
LULU Lululemon Athletica Inc. Add +4.8% 4.83% +1.61
ATOM Atomera Inc. Add +32.2% 0.61% +0.51
AMTM Amentum Holdings Inc. New 0.42% +0.42
SBAC SBA Communications Corp. Add +20.0% 1.38% +0.04
BHRB Burke & Herbert Financial SE New 0.02% +0.02
ENVX Enovix Corp. Add +33.1% 0.04% +0.02
BRSP Brightspire Capital Inc. Add +4.0% 0.13% +0.01
TPVG Triplepoint Venture Growth B New 0.01% +0.01
CTSO Cytosorbents Corp. Add +4.0% 0.29% −0.16

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q2 2026 79$820.7MMSFT, MKL, AMZN, ORLY, AMT
Q1 2026 72$820.5MMSFT, MKL, AMZN, AMT, ORLY
Q4 2025 71$921.7MMSFT, MKL, AMZN, AMT, ORLY
Q3 2025 73$960.1MMSFT, MKL, AMZN, ORLY, AMT
Q2 2025 74$972.9MMSFT, MKL, AMT, AMZN, ORLY
Q1 2025 70$953.0MMSFT, AMT, MKL, ORLY, AMZN
Q4 2024 69$976.8MMSFT, MKL, AMZN, AMT, ORLY
Q3 2024 66$991.7MMSFT, AMT, MKL, AMZN, ORLY
Q2 2024 67$1.0BMSFT, MKL, AMT, AMZN, ORLY
Q1 2024 66$1.2BMSFT, MKL, AMT, AMZN, CPRT