Gates Foundation Buys Tripadvisor Inc., Diamond Foods Inc., Sells AutoNation Inc., America Movil, M&T Bank Corp.

Bill & Melinda Gates Foundation just reported their 4^th quarter portfolio. This portfolio has a lot of similarities with Bill Gates’ personal portfolio, and both are managed by Bill Gates’ investment advisor Michael Larson.

Unlike mutual funds or hedge funds, Gates’ Foundation does not have the problem of forced redemptions. The turnover of the portfolio is really small. The foundation buys TripAdvisor Inc., Diamond Foods Inc., sells Autonation Inc., America Movil S.a.b. De C.v., M&T Bank Corp. etc. during the 3-months ended 12/31/2011, according to the most recent filings of his investment company, Bill & Melinda Gates Foundation Trust. As of 12/31/2011, Bill & Melinda Gates Foundation Trust owns 29 stocks with a total value of $15.3 billion. These are the details of the buys and sells.

• New Purchases: TRIP, DMND,
• Reduced Positions: AN,
• Sold Out: AMX, MTB, MON, IACI, EKDKQ,

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

These are the top 5 holdings of Bill Gates

1. Berkshire Hathaway Inc. (BRK.B) - 91,204,077 shares, 45.4% of the total portfolio. Shares reduced by 5.2%
2. McDonald's Corp. (MCD) - 9,872,500 shares, 6.5% of the total portfolio.
3. Caterpillar Inc. (CAT) - 10,090,400 shares, 6.0% of the total portfolio.
4. The CocaCola Company (KO) - 11,682,000 shares, 5.3% of the total portfolio.
5. Canadian National Railway Company Fully (CNI) - 8,563,437 shares, 4.4% of the total portfolio.

New Purchase: TripAdvisor Inc. (TRIP, Financial)

Bill Gates initiated holdings in Tripadvisor Inc.. His purchase prices were between $24.53 and $30.25, with an estimated average price of $27.04. The impact to his portfolio due to this purchase was 0.1%. His holdings were 598,737 shares as of 12/31/2011.

New Purchase: Diamond Foods Inc. (DMND, Financial)

Bill Gates initiated holdings in Diamond Foods Inc.. His purchase prices were between $26.92 and $77.23, with an estimated average price of $47.59. The impact to his portfolio due to this purchase was 0.07%. His holdings were 351,019 shares as of 12/31/2011.

Diamond Foods was making a lot of news lately as the company fired its CEO and CFO at the same time. Gates Foundation has since incurred big boss with the position. It will be interesting to see whether they will add to the position.

Sold Out: America Movil S.a.b. De C.v. (AMX)

Bill Gates sold out his holdings in America Movil S.a.b. De C.v.. His sale prices were between $21.5 and $26.42, with an estimated average price of $23.57.

Sold Out: M&t Bank Corp. (MTB)

Bill Gates sold out his holdings in M&t Bank Corp.. His sale prices were between $67.43 and $79.24, with an estimated average price of $73.27.

Sold Out: Monsanto Company (MON)

Bill Gates sold out his holdings in Monsanto Company. His sale prices were between $60.11 and $77.97, with an estimated average price of $71.41.

Sold Out: Iac/interactivecorp (IACI)

Bill Gates sold out his holdings in Iac/interactivecorp. His sale prices were between $36.98 and $43.64, with an estimated average price of $41.04.

Reduced: Autonation Inc. (AN, Financial)

Bill Gates reduced to his holdings in Autonation Inc. by 52.89%. His sale prices were between $31.54 and $40.79, with an estimated average price of $36.12. The impact to his portfolio due to this sale was -1.28%. Bill Gates still held 5,083,885 shares as of 12/31/2011.

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