Citadel Investment Advisory, Inc.

In its 13F for Q1 2024 (holdings as of March 31, 2024, filed April 17, 2024), Citadel Investment Advisory, Inc. reported 81 stock positions worth $177.1 million. Its top holding was Berkshire Hathaway Class B (BRK.B) at 25.6% of the portfolio, followed by Markel (MKL, 13.5%) and Alphabet Class A (GOOGL, 4.3%). Compared with Q4 2023, it added to 5 and reduced 40. The biggest buy was Eaton (ETN, shares +0%) and the biggest sale Markel (MKL, shares −1%).

Most Recent 13F
Q2 2026
Location
CHESTERLAND, OH
CIK
0001811907
Portfolio Value
$177.1M (Q1 2024)
SEC Filing
0001811907-24-000002 ↗ filed Apr 17, 2024

Holdings Value

0$50.0M$100.0M$150.0M$200.0M$250.0M Q1 2024: $177.1M $177.1M Q1 2024 Q2 2024: $175.5M Q2 2024 Q3 2024: $189.8M Q3 2024 Q4 2024: $192.6M Q4 2024 Q1 2025: $203.4M Q1 2025 Q2 2025: $206.1M Q2 2025 Q3 2025: $217.7M Q3 2025 Q4 2025: $231.2M Q4 2025 Q1 2026: $209.2M Q1 2026 Q2 2026: $220.0M Q2 2026

Holdings 81 stocks · $177.1M

BRK.B Berkshire Hathaway Inc. Class B 25.59% 107,729 $45.3M Reduce -0.1%
MKL Markel Group Inc. 13.53% 15,741 $23.9M Reduce -0.8%
GOOGL Alphabet Inc. Class A 4.27% 50,080 $7.6M Reduce -0.8%
MSFT Microsoft Corp. 3.55% 14,944 $6.3M Reduce -0.5%
GOOG Alphabet Inc. Class C 2.71% 31,530 $4.8M Reduce -1.5%
JNJ Johnson & Johnson 2.14% 24,001 $3.8M Reduce -0.7%
PM Philip Morris International 2.12% 41,001 $3.8M No change
IBM Intl Business Machines Corp. filed as INTERNATIONAL BUSINESS MACHS 1.91% 17,666 $3.4M Reduce -0.4%
MCO Moody's Corp. 1.75% 7,865 $3.1M No change
DIS The Walt Disney Co. filed as DISNEY WALT CO 1.74% 25,185 $3.1M Reduce -0.1%
MCD McDonald's Corp. 1.68% 10,568 $3.0M No change
RTX RTX Corp. 1.64% 29,714 $2.9M Reduce -1.1%
ABBV Abbvie Inc. 1.63% 15,844 $2.9M Reduce -1.5%
PEP Pepsico Inc. 1.59% 16,121 $2.8M No change
IPMLF Imperial Metals Corp. 1.59% 1,758,195 $2.8M Add +1.5%
ORCL Oracle Corp. 1.57% 22,192 $2.8M No change
KO The Coca-Cola Co. 1.48% 42,803 $2.6M Reduce -0.2%
MTD Mettler-Toledo International 1.42% 1,890 $2.5M No change
GD General Dynamics Corp. 1.35% 8,441 $2.4M Reduce -0.1%
BKNG Booking Holdings Inc. 1.23% 602 $2.2M Reduce -1.1%
Medtronic 1.18% 23,950 $2.1M Reduce -0.5%
IDXX Idexx Laboratories Inc. 1.13% 3,695 $2.0M Reduce -0.3%
GS Goldman Sachs Group Inc. 1.07% 4,530 $1.9M Reduce -2.2%
JPM JPMorgan Chase & Co. 1.01% 8,936 $1.8M No change
MHK Mohawk Industries Inc. 0.91% 12,378 $1.6M Reduce -1.1%
CSX CSX Corp. 0.89% 42,710 $1.6M Add +0.1%
AXP American Express Co. 0.89% 6,884 $1.6M No change
BUD Anheuser-Busch Inbev-SPN ADR 0.81% 23,566 $1.4M Reduce -5.1%
LOW Lowe's Cos Inc. 0.77% 5,320 $1.4M No change
WFC Wells Fargo & Co. 0.73% 22,436 $1.3M Reduce -9.1%
DHR Danaher Corp. 0.62% 4,373 $1.1M No change
ETN Eaton Corp. PLC 0.61% 3,462 $1.1M Add +0.1%
CNI Canadian Natl Railway Co. 0.60% 8,011 $1.1M Reduce -1.8%
ABT Abbott Laboratories 0.59% 9,214 $1.0M No change
AMG Affiliated Managers Group 0.57% 6,039 $1.0M No change
SYY Sysco Corp. 0.55% 12,093 $982K Reduce -0.6%
AMZN Amazon.com Inc. 0.52% 5,152 $929K Reduce -0.2%
EG Everest Group Ltd. 0.51% 2,252 $895K Reduce -4.2%
HHC The Howard Hughes Corp. 0.49% 11,992 $871K Reduce -0.8%
BAC Bank of America Corp. filed as BANK AMERICA CORP 0.49% 22,665 $859K Reduce -4.5%
WYNN WYNN Resorts Ltd. 0.48% 8,516 $850K No change
CMCSA Comcast Corp. Class A 0.47% 19,280 $836K No change
VISTAPRINT N V 0.45% 9,025 $799K No change
UPS United Parcel Service Class A 0.44% 5,251 $780K No change
LECO Lincoln Electric Holdings 0.43% 2,995 $765K No change
CEDAR FAIR LP 0.42% 17,875 $751K No change
CACC Credit Acceptance Corp. 0.41% 1,312 $724K No change
BA The Boeing Co. 0.40% 3,705 $715K No change
John Marshall Bank 0.40% 39,600 $710K No change
PG The Procter & Gamble Co. 0.38% 4,162 $675K Reduce -1.2%
JEF Jefferies Financial Group Inc. 0.37% 14,885 $656K No change
LDOS Leidos Holdings Inc. 0.34% 4,617 $605K Reduce -3.1%
FISV Fiserv Inc. 0.34% 3,740 $598K No change
WBD Warner Bros Discovery Inc. 0.34% 68,032 $594K Reduce -1.9%
INTC Intel Corp. 0.33% 13,382 $591K No change
MA Mastercard Inc. Class A 0.32% 1,180 $568K No change
WRB WR Berkley Corp. filed as BERKLEY W R CORP 0.30% 6,066 $536K No change
ESAB Esab Corp. 0.29% 4,623 $511K Reduce -0.7%
WBA Walgreens Boots Alliance 0.28% 23,015 $499K Reduce -3.4%
T AT&T Inc. 0.28% 28,025 $493K No change
CI The Cigna Group 0.25% 1,220 $443K Reduce -0.3%
META Meta Platforms Inc. Class A 0.22% 810 $393K Add +182.2%
KHC The Kraft Heinz Co. 0.22% 10,532 $389K Reduce -2.5%
MDLZ Mondelez International Inc. Class A 0.22% 5,480 $384K No change
BF.B Brown-Forman Corp. Class B 0.20% 6,804 $351K No change
FCN Fti Consulting Inc. 0.20% 1,670 $351K No change
CABO Cable One Inc. 0.18% 752 $318K No change
ENOV Enovis Corp. 0.17% 4,755 $297K Reduce -0.7%
SEIC Sei Investments Company 0.16% 4,000 $288K Reduce -7.0%
AAPL Apple Inc. 0.15% 1,600 $274K No change
LBRDK Liberty Broadband-C 0.14% 4,229 $242K Reduce -1.0%
LSXMK Liberty Media Cor-Siriusxm C 0.13% 7,828 $233K Reduce -1.7%
WTW Willis Towers Watson PLC 0.13% 826 $227K No change
AAP Advance Auto Parts Inc. 0.12% 2,550 $217K No change
LBYKV Liberty Global PLC-C-Wi 0.11% 10,674 $188K Reduce -6.5%
KDP Keurig Dr Pepper Inc. 0.10% 5,870 $180K No change
ECHO Echostar Corp. Class A 0.09% 11,152 $159K Add +6.0%
Ascent Industries Corp 0.09% 15,238 $155K No change
LBYAV Liberty Global PLC-A-Wi 0.08% 8,510 $144K Reduce -7.7%
PARAA Paramount Global Class A 0.07% 10,928 $129K Reduce -2.0%
LSXMA Liberty Media Cor-Siriusxm A 0.06% 3,736 $111K Reduce -9.6%
Other holdings (1): bonds, preferreds, convertibles and warrants · $440K (not counted above)
SecurityClassShares / PrincipalValueChange
CITIGROUP INC (C 6.875 PERP L) Equity 4,887$440KNo change

Total filed on the 13F, all lines: $177.5M.

Portfolio Sells Q4 2023 → Q1 2024

MKL Markel Group Inc. Reduce -0.8% 13.53% −0.30
JNJ Johnson & Johnson Reduce -0.7% 2.14% −0.18
BUD Anheuser-Busch Inbev-SPN ADR Reduce -5.1% 0.81% −0.18
WBD Warner Bros Discovery Inc. Reduce -1.9% 0.34% −0.15
HHC The Howard Hughes Corp. Reduce -0.8% 0.49% −0.14
IDXX Idexx Laboratories Inc. Reduce -0.3% 1.13% −0.14
WBA Walgreens Boots Alliance Reduce -3.4% 0.28% −0.10
BKNG Booking Holdings Inc. Reduce -1.1% 1.23% −0.09
LBRDK Liberty Broadband-C Reduce -1.0% 0.14% −0.07
KO The Coca-Cola Co. Reduce -0.2% 1.48% −0.07
GOOG Alphabet Inc. Class C Reduce -1.5% 2.71% −0.06
GOOGL Alphabet Inc. Class A Reduce -0.8% 4.27% −0.06
Medtronic Reduce -0.5% 1.18% −0.04
CNI Canadian Natl Railway Co. Reduce -1.8% 0.60% −0.03
PARAA Paramount Global Class A Reduce -2.0% 0.07% −0.03
GS Goldman Sachs Group Inc. Reduce -2.2% 1.07% −0.03
KHC The Kraft Heinz Co. Reduce -2.5% 0.22% −0.03
LBYKV Liberty Global PLC-C-Wi Reduce -6.5% 0.11% −0.02
LBYAV Liberty Global PLC-A-Wi Reduce -7.7% 0.08% −0.02
WFC Wells Fargo & Co. Reduce -9.1% 0.73% −0.01
LSXMA Liberty Media Cor-Siriusxm A Reduce -9.6% 0.06% −0.01
LSXMK Liberty Media Cor-Siriusxm C Reduce -1.7% 0.13% −0.01
BAC Bank of America Corp. Reduce -4.5% 0.49% −0.01
SEIC Sei Investments Company Reduce -7.0% 0.16% −0.00
EG Everest Group Ltd. Reduce -4.2% 0.51% −0.00
GD General Dynamics Corp. Reduce -0.1% 1.35% −0.00
PG The Procter & Gamble Co. Reduce -1.2% 0.38% +0.00
ENOV Enovis Corp. Reduce -0.7% 0.17% +0.00
SYY Sysco Corp. Reduce -0.6% 0.55% +0.01
LDOS Leidos Holdings Inc. Reduce -3.1% 0.34% +0.03
CI The Cigna Group Reduce -0.3% 0.25% +0.03
ESAB Esab Corp. Reduce -0.7% 0.29% +0.04
AMZN Amazon.com Inc. Reduce -0.2% 0.52% +0.04
MSFT Microsoft Corp. Reduce -0.5% 3.55% +0.08
RTX RTX Corp. Reduce -1.1% 1.64% +0.09
ABBV Abbvie Inc. Reduce -1.5% 1.63% +0.10
MHK Mohawk Industries Inc. Reduce -1.1% 0.91% +0.12
IBM Intl Business Machines Corp. Reduce -0.4% 1.91% +0.12
DIS The Walt Disney Co. Reduce -0.1% 1.74% +0.34
BRK.B Berkshire Hathaway Inc. Class B Reduce -0.1% 25.59% +1.98

Portfolio Buys Q4 2023 → Q1 2024

ETN Eaton Corp. PLC Add +0.1% 0.61% +0.10
CSX CSX Corp. Add +0.1% 0.89% −0.01
ECHO Echostar Corp. Class A Add +6.0% 0.09% −0.02
IPMLF Imperial Metals Corp. Add +1.5% 1.59% −0.13
META Meta Platforms Inc. Class A Add +182.2% 0.22% −0.28

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q2 2026 75$220.0MBRK.B, MKL, GOOGL, GOOG, IPMLF
Q1 2026 77$209.2MBRK.B, MKL, GOOGL, IPMLF, GOOG
Q4 2025 78$231.2MBRK.B, MKL, GOOGL, IPMLF, GOOG
Q3 2025 81$217.7MBRK.B, MKL, GOOGL, MSFT, IPMLF
Q2 2025 82$206.1MBRK.B, MKL, GOOGL, MSFT, PM
Q1 2025 81$203.4MBRK.B, MKL, GOOGL, PM, MSFT
Q4 2024 81$192.6MBRK.B, MKL, GOOGL, MSFT, GOOG
Q3 2024 80$189.8MBRK.B, MKL, GOOGL, MSFT, GOOG
Q2 2024 81$175.5MBRK.B, MKL, GOOGL, MSFT, GOOG
Q1 2024 81$177.1MBRK.B, MKL, GOOGL, MSFT, GOOG