Markel Corp’s Tom Gayner just reported his last portfolio. He has added to a lot of positions in the portfolio of Markel Corp (MKL). He buys Archer Daniels Midland Company, Artio Global Investors Inc., Berkshire Hathaway Inc., Walgreen Company, Schlumberger Limited., Oracle Corporation, Dell Inc., Monsanto Company, Carbo Ceramics Inc., Hasbro, Inc. etc during the 3-months ended 06/30/2012, according to the most recent filings of his investment company, Markel Gayner Asset Management Corp. As of 06/30/2012, Markel Gayner Asset Management Corp owns 101 stocks with a total value of $2.2 billion. To understand how Tom Gayner invests, please read Answers from Tom Gayner's Interview with GuruFocus.

These are the details of the buys and sells.

• New Purchases: DELL, MON, HAS, BRP,
• Added Positions: ADM, ART, BRK.A, WAG, SLB, ORCL, CRR, CLMS, APD, MCF, MOS, BBSI,
• Reduced Positions: FNF,
• Sold Out: ITC, POOL, NSH,

For the details of Tom Gayner's stock buys and sells, go to http://www.gurufocus.com/StockBuy.php?GuruName=Tom+Gayner

This is the sector weightings of his portfolio:

Financials	38.4%
Consumer Services	23%
Industrials	13.8%
Consumer Goods	11.8%
Oil & Gas	4.6%
Health Care	4.6%
Technology	3.3%
Basic Materials	0.4%
Telecom	0.1%

These are the top 5 holdings of Tom Gayner

1. Berkshire Hathaway Inc. (BRK.A) - 1,077 shares, 6.2% of the total portfolio. Shares added by 7.7%
2. CarMax, Inc (KMX) - 5,159,320 shares, 6.1% of the total portfolio. Shares added by 0.33%
3. Berkshire Hathaway Inc. (BRK.B) - 1,567,407 shares, 6.0% of the total portfolio. Shares added by 0.27%
4. Diageo Plc (ADR) (DEO) - 1,238,237 shares, 5.8% of the total portfolio. Shares added by 0.32%
5. Fairfax Financial Holdings Limited (USA) (FRFHF) - 279,459 shares, 5.0% of the total portfolio.

New Purchase: Dell Inc. (DELL)

Tom Gayner initiated holdings in Dell Inc.. His purchase prices were between $11.79 and $16.69, with an estimated average price of $14.39. The impact to his portfolio due to this purchase was 0.13%. His holdings were 225,000 shares as of 06/30/2012. Dell Inc. is a premier provider of products and services required for customers worldwide to build their information-technology and Internet infrastructures. Dell Inc. has a market cap of $20.56 billion; its shares were traded at around $12.39 with a P/E ratio of 5.8 and P/S ratio of 0.3. Dell Inc. had an annual average earnings growth of 8.1% over the past 10 years. GuruFocus rated Dell Inc. the business predictability rank of 3.5-star.

New Purchase: Monsanto Company (MON)

Tom Gayner initiated holdings in Monsanto Company. His purchase prices were between $70.26 and $82.03, with an estimated average price of $76.44. The impact to his portfolio due to this purchase was 0.1%. His holdings were 26,100 shares as of 06/30/2012. Monsanto is a global provider of technology-based solutions and agricultural products for growers and downstream customers, such as grain processors and consumers, in the agricultural markets. Monsanto Company has a market cap of $46.43 billion; its shares were traded at around $88.62 with a P/E ratio of 22.2 and P/S ratio of 3.9. The dividend yield of Monsanto Company stocks is 1.4%. Monsanto Company had an annual average earnings growth of 19.9% over the past 10 years. GuruFocus rated Monsanto Company the business predictability rank of 4-star.

New Purchase: Hasbro, Inc. (HAS)

Tom Gayner initiated holdings in Hasbro, Inc.. His purchase prices were between $32.15 and $37.25, with an estimated average price of $35.27. The impact to his portfolio due to this purchase was 0.06%. His holdings were 40,000 shares as of 06/30/2012. Hasbro Inc. is a worldwide leader in children's and family leisure time andentertainment products and services, including the design, manufacture andmarketing of games and toys ranging from traditional to high-tech. Hasbro, Inc. has a market cap of $4.68 billion; its shares were traded at around $37.37 with a P/E ratio of 13.4 and P/S ratio of 1.1. The dividend yield of Hasbro, Inc. stocks is 4%. Hasbro, Inc. had an annual average earnings growth of 6.3% over the past 10 years. GuruFocus rated Hasbro, Inc. the business predictability rank of 2.5-star.

New Purchase: Brasil Telecom Participacoes Sa (adr) (BRP)

Tom Gayner initiated holdings in Brasil Telecom Participacoes Sa (adr). His purchase prices were between $10.09 and $11.87, with an estimated average price of $10.89. The impact to his portfolio due to this purchase was 0.05%. His holdings were 98,500 shares as of 06/30/2012. Brookfield Residential Properties Inc., formerly known as Brookfield Homes Corporation, is a North American land developer and homebuilder. Brasil Telecom Participacoes Sa (adr) has a market cap of $1.19 billion; its shares were traded at around $12.3 with a P/E ratio of 18.3 and P/S ratio of 1.2.

Sold Out: Itc Holdings Corp. (ITC)

Tom Gayner sold out his holdings in Itc Holdings Corp.. His sale prices were between $66.86 and $78.41, with an estimated average price of $72.39. ITC Holdings Corp. is in the business of electricity transmission infrastructure improvements as a means to improve electric reliability, reduce congestion and lower the overall cost of delivered energy. Itc Holdings Corp. has a market cap of $3.77 billion; its shares were traded at around $71.17 with a P/E ratio of 19.9 and P/S ratio of 5. The dividend yield of Itc Holdings Corp. stocks is 1.9%. Itc Holdings Corp. had an annual average earnings growth of 22.7% over the past 5 years.

Sold Out: Pool Corporation (POOL)

Tom Gayner sold out his holdings in Pool Corporation. His sale prices were between $34.95 and $40.18, with an estimated average price of $37.01. SCP Pool Corporation distributes swimming pool supplies and related products to swimming pool remodelers and builders, independent retail stores and swimming pool repair and service companies. Pool Corporation has a market cap of $1.81 billion; its shares were traded at around $37.02 with a P/E ratio of 22.5 and P/S ratio of 1. The dividend yield of Pool Corporation stocks is 1.7%. Pool Corporation had an annual average earnings growth of 6.3% over the past 10 years.

Sold Out: Nustar Gp Holdings, Llc (NSH)

Tom Gayner sold out his holdings in Nustar Gp Holdings, Llc. His sale prices were between $29.53 and $34.8, with an estimated average price of $32.52. NUSTAR GP HOLDINGS is a publicly traded limited liability company that owns the two percent general partner interest, a 18. Nustar Gp Holdings, Llc has a market cap of $1.34 billion; its shares were traded at around $31.62 with a P/E ratio of 87.5 and P/S ratio of 20.4. The dividend yield of Nustar Gp Holdings, Llc stocks is 6.5%.

Added: Archer Daniels Midland Company (ADM)

Tom Gayner added to his holdings in Archer Daniels Midland Company by 162.18%. His purchase prices were between $28.7 and $33.13, with an estimated average price of $31.41. The impact to his portfolio due to this purchase was 0.8%. His holdings were 985,800 shares as of 06/30/2012. Archer Daniels Midland Company is a world leader in agricultural processing and fermentation technology. Archer Daniels Midland Company has a market cap of $16.82 billion; its shares were traded at around $26.46 with a P/E ratio of 11.4 and P/S ratio of 0.2. The dividend yield of Archer Daniels Midland Company stocks is 2.7%. Archer Daniels Midland Company had an annual average earnings growth of 12.6% over the past 10 years. GuruFocus rated Archer Daniels Midland Company the business predictability rank of 5-star.

Added: Artio Global Investors Inc. (ART)

Tom Gayner added to his holdings in Artio Global Investors Inc. by 304.23%. His purchase prices were between $2.92 and $4.8, with an estimated average price of $3.55. The impact to his portfolio due to this purchase was 0.68%. His holdings were 5,694,000 shares as of 06/30/2012. Artio Global Investors Inc. is the holding company of Artio Global Management LLC, a registered investment adviser headquartered in New York City that actively invests in global equity and fixed income markets, primarily for institutional and intermediary clients. Artio Global Investors Inc. has a market cap of $197.8 million; its shares were traded at around $3.21 with a P/E ratio of 5.5 and P/S ratio of 0.7. The dividend yield of Artio Global Investors Inc. stocks is 2.4%.

Added: Berkshire Hathaway Inc. (BRK.A)

Tom Gayner added to his holdings in Berkshire Hathaway Inc. by 7.7%. His purchase prices were between $117814 and $124366, with an estimated average price of $120902. The impact to his portfolio due to this purchase was 0.44%. His holdings were 1,077 shares as of 06/30/2012. Berkshire Hathaway Inc. is a holding company owning subsidiaries engaged in a number of diverse business activities. Berkshire Hathaway Inc. has a market cap of $212.12 billion; its shares were traded at around $126858 with a P/E ratio of 16.1 and P/S ratio of 1.9. Berkshire Hathaway Inc. had an annual average earnings growth of 17.5% over the past 10 years.

Added: Walgreen Company (WAG)

Tom Gayner added to his holdings in Walgreen Company by 26.87%. His purchase prices were between $28.69 and $35.8, with an estimated average price of $32.35. The impact to his portfolio due to this purchase was 0.25%. His holdings were 868,860 shares as of 06/30/2012. Walgreen Co. is a national retail pharmacy chain and considered the leader in innovative drugstore retailing. Walgreen Company has a market cap of $30.89 billion; its shares were traded at around $36.09 with a P/E ratio of 13.8 and P/S ratio of 0.4. The dividend yield of Walgreen Company stocks is 2.5%. Walgreen Company had an annual average earnings growth of 13.1% over the past 10 years. GuruFocus rated Walgreen Company the business predictability rank of 5-star.

Added: Schlumberger Limited. (SLB)

Tom Gayner added to his holdings in Schlumberger Limited. by 59.34%. His purchase prices were between $60.15 and $74.35, with an estimated average price of $67.31. The impact to his portfolio due to this purchase was 0.16%. His holdings were 145,000 shares as of 06/30/2012. Schlumberger Limited is a global technology services company consisting of two business segments, Schlumberger Oilfield Services and SchlumbergerSema. Schlumberger Limited. has a market cap of $96.54 billion; its shares were traded at around $74.33 with a P/E ratio of 17.6 and P/S ratio of 2.4. The dividend yield of Schlumberger Limited. stocks is 1.5%. Schlumberger Limited. had an annual average earnings growth of 1.9% over the past 5 years.

Added: Oracle Corporation (ORCL)

Tom Gayner added to his holdings in Oracle Corporation by 20.24%. His purchase prices were between $25.75 and $29.68, with an estimated average price of $27.83. The impact to his portfolio due to this purchase was 0.14%. His holdings were 619,700 shares as of 06/30/2012. Oracle Corporation is one of the world's suppliers of software for information management. Oracle Corporation has a market cap of $152.84 billion; its shares were traded at around $31.34 with a P/E ratio of 13.1 and P/S ratio of 4.1. The dividend yield of Oracle Corporation stocks is 0.8%. Oracle Corporation had an annual average earnings growth of 18.1% over the past 10 years. GuruFocus rated Oracle Corporation the business predictability rank of 5-star.

Added: Carbo Ceramics Inc. (CRR)

Tom Gayner added to his holdings in Carbo Ceramics Inc. by 56.82%. His purchase prices were between $72.86 and $104.07, with an estimated average price of $84.11. The impact to his portfolio due to this purchase was 0.09%. His holdings were 69,000 shares as of 06/30/2012. CARBO Ceramics Inc. is the world's largest producer and supplier of ceramicproppants for use in the hydraulic fracturing of natural gas and oil wells. Carbo Ceramics Inc. has a market cap of $1.49 billion; its shares were traded at around $66.74 with a P/E ratio of 11.3 and P/S ratio of 2.4. The dividend yield of Carbo Ceramics Inc. stocks is 1.5%. Carbo Ceramics Inc. had an annual average earnings growth of 15.6% over the past 10 years. GuruFocus rated Carbo Ceramics Inc. the business predictability rank of 5-star.

Added: Calamos Asset Management, Inc (CLMS)

Tom Gayner added to his holdings in Calamos Asset Management, Inc by 380%. His purchase prices were between $10.63 and $13.26, with an estimated average price of $11.96. The impact to his portfolio due to this purchase was 0.05%. His holdings were 120,000 shares as of 06/30/2012. Calamos Asset Management, Inc., provides investment advisory services through its subsidiaries to institutions and individuals, principally in the United States. Calamos Asset Management, Inc has a market cap of $221.2 million; its shares were traded at around $10.89 with a P/E ratio of 9 and P/S ratio of 0.6. The dividend yield of Calamos Asset Management, Inc stocks is 3.5%.

Added: Air Products & Chemicals, Inc. (APD)

Tom Gayner added to his holdings in Air Products & Chemicals, Inc. by 464.29%. His purchase prices were between $76.61 and $91.98, with an estimated average price of $83.17. The impact to his portfolio due to this purchase was 0.05%. His holdings were 15,800 shares as of 06/30/2012. Air Products and Chemicals, Inc. has established an internationally recognized industrial gas and related industrial process equipment business, and developed strong positions as a producer of certain chemicals. Air Products & Chemicals, Inc. has a market cap of $17.39 billion; its shares were traded at around $84.04 with a P/E ratio of 14.7 and P/S ratio of 1.7. The dividend yield of Air Products & Chemicals, Inc. stocks is 3.1%. Air Products & Chemicals, Inc. had an annual average earnings growth of 8% over the past 10 years. GuruFocus rated Air Products & Chemicals, Inc. the business predictability rank of 2-star.

Added: Contango Oil & Gas Company (MCF)

Tom Gayner added to his holdings in Contango Oil & Gas Company by 32.79%. His purchase prices were between $51.74 and $59.57, with an estimated average price of $54.94. The impact to his portfolio due to this purchase was 0.03%. His holdings were 40,500 shares as of 06/30/2012. Contango Oil & Gas is a Houston-based, independent natural gas and oil company. Contango Oil & Gas Company has a market cap of $920.2 million; its shares were traded at around $59.66 with a P/E ratio of 13.9 and P/S ratio of 4.5.

Added: Mosaic Co (MOS)

Tom Gayner added to his holdings in Mosaic Co by 22.22%. His purchase prices were between $45.47 and $55.41, with an estimated average price of $50.2. The impact to his portfolio due to this purchase was 0.02%. His holdings were 33,000 shares as of 06/30/2012. The Mosaic Company is one of the world's producers and marketers of concentrated phosphate and potash crop nutrients. Mosaic Co has a market cap of $24.41 billion; its shares were traded at around $58.65 with a P/E ratio of 12.8 and P/S ratio of 2.2. The dividend yield of Mosaic Co stocks is 0.9%. Mosaic Co had an annual average earnings growth of 15.9% over the past 5 years.

Added: Barrett Business Services, Inc. (BBSI)

Tom Gayner added to his holdings in Barrett Business Services, Inc. by 95.24%. His purchase prices were between $19.32 and $21.3, with an estimated average price of $20.09. The impact to his portfolio due to this purchase was 0.01%. His holdings were 20,500 shares as of 06/30/2012. BARRETT BUSINESS SERVICES INC. provides light industrial, clerical and technical employees to a wide range of businesses through staff leasing, contract staffing, site management and temporary staffing arrangements. Barrett Business Services, Inc. has a market cap of $182.7 million; its shares were traded at around $24.43 with a P/E ratio of 22.3 and P/S ratio of 0.6. The dividend yield of Barrett Business Services, Inc. stocks is 1.7%.

Reduced: Fidelity National Financial Inc (FNF)

Tom Gayner reduced to his holdings in Fidelity National Financial Inc by 79.79%. His sale prices were between $17.64 and $19.55, with an estimated average price of $18.84. The impact to his portfolio due to this sale was -0.45%. Tom Gayner still held 139,300 shares as of 06/30/2012. Fidelity National Title Group, Inc. is a provider of title insurance, specialty insurance and claims management services. Fidelity National Financial Inc has a market cap of $4.11 billion; its shares were traded at around $18.69 with a P/E ratio of 9.6 and P/S ratio of 0.9. The dividend yield of Fidelity National Financial Inc stocks is 3%.

Here is the complete portfolio of Tom Gayner. Also check out the Undervalued Stocks, Top Growth Companies, and High Yield stocks of Tom Gayner.

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