Philippe Laffont’s hedge fund, Coatue Management, disclosed a new position in VMED through an SEC filing today. As of May 2nd, Coatue owned 14,463,301 shares or 5.21% of VMED.

From Yahoo Finance, “Virgin Media Inc., through its subsidiaries, provides entertainment and communications services in the United Kingdom.”

Seth Klarman’s hedge fund Baupost Group filed their March 31, 2012 13f filing on Friday.  At the end of the quarter Baupost had 20 positions valued at $2,956,954,000.

New Positions: none

Sold out of 3 positions:

• GNW (previously 1.96% of their portfolio)
• PDLI (previously 1.49% of their portfolio)
• TRGT (previously 1% of their portfolio)

Increased shares held in 3 positions:

• IDIX (2.73% of portfolio up from 1.27%)
• NG (2.43% from 1.90%)
• THRX (9.6% to 9.42%)

Decreased shares held in 5 positions:

• ALR (0.12% of portfolio from 1.38%)
• BP (14.18% from 15.37%)
• HPQ (13.9% from 14.48%)
• MGAM (0.22% from 0.60%)
• MSFT (7.64% from 9.34%)

Get complete details of Baupost Group’s most recent holdings as well as historical filings here.

While the Q4 2011 13f filing data is now stale, enough early Q1 2012 filings have come in as well as a couple of 13G filings that indicate possible winners and losers in today’s action.

Winners in Arena Pharmaceuticals (ARNA)

Arena Pharmaceuticals is up 61% today after experts recommended approval for the company’s obesity pill.

Both Blackrock Inc and Wellington Management filed 13G’s no the 13th and 14th of February indicating large positions in ARNA.  Since 13G’s must be filed 10 days after any purchase or sale by owners of more than 5% of the stock we can assume both funds still hold their shares.  Early Q1 2012 13F’s show State Street, Bank of New York Mellon, the State of New Jersey Pension Fund, Smith Asset Management, Schwab Charles Investment Management, Oxford Asset Mangement, Rhumbline Advisors, Metropolitan Life, Nationwide Fund Advisors and Bailard Inc (through call options) all held over 100,000 shares in ARNA as of 3/31.  Though no fund so far has ARNA representing more than a fraction of 1 percent of their entire 13f portfolio.

Losers in JPMorgan Chase (JPM)

JPMorgan Chase is down almost 8% in today’s action after revealing a trading loss of at least $2 billion from a failed hedging strategy.

Blackrock filed a 13G on 2/13 disclosing a 213,278,198 share (5.61%) position in JPM.  From 13f data so far JPM represents over 5% of at least 6 filer’s portfolios.  Ruffer LLP (13.48%), Grisanti Brown & Partners (10.38%), Alpine Investment Management (7.32%), Grabill Bank (6.38%), Wright Private Asset Management (5.31%), and Anderson Hoagland (5.06%).   At least 79 filer’s so far have JPM as at least a top 5 holding. All of this information and more is available for free using Whalewisdom fund and stock tools linked to throughout this article.

Popular funds Valiant Capital Management, Libra Advisors, and Tweedy Browne Co have all filed their 13F reports a little early.

The overall market value of Libra’s holdings decreased from $339,496,669 to $329,002,516 16 buys versus 19 sales. Valiant’s 13f market value went from $831,212,007 to $884,430,744 with 4 buys against 15 sales. Tweedy Browne’s 13f market value went from $2,856,455,026 to $2,752,915,680 with 8 buys against 39 sales.

New Buys

Tweedy Browne purchased a single new stock, Horizon Telecom and added to 7 existing positions, doubling  their Berkshire Hathaway B Shares and increasing their Akzo Nobel holdings almost 200%.  They also added 62% to their Total SA shares.

Libra Advisors added 3 new stocks, Novadaq Tech (NVDQ), Brigus Gold Corp (BRD), and eBay (EBAY) representing 1.14%, 0.66%, and 0.31% of the overall 13f portfolio.  They also added to 13 positions including significant increases in Newmont Mining, Gran Tierra Energy and Rubicon Minerals.

Valiant Capital purchased 3 new stocks, the largest being the SPDR S&P 500 ETF representing only 0.53% of their overall 13f portfolio.  Valiant also made an additional large investment in one of their existing holdings, Charles Schwab, buying 2,527,879 additional shares.

Sells

Tweedy Browne sold out of 3 positions during the quarter, McDonald’s, Avatar Holdings and Honda Motor. They further reduced exposure in 36 other holdings including a big drop in their top pick Philip Morris International selling 1,512,873 shares or 26%.

Libra Advisors sold out of 9 stocks including Salesforce and Probe Mines.  They also trimmed holdings in 10 stocks with big reductions in basic materials stocks: Extorre Gold Mines, Aurico Gold, Silver Wheaton, Taseko Mines and Primero Mining.

Valiant closed out positions in Health Net and Adobe with the former having been 5.69% of their overall Q4 2011 portfolio and the latter having been 3%.    Valiant also reduced exposure to 13 other holdings with Apple being the largest drop at 27% though it’s still their #1 position.

George Soros’ Soros Fund Management LLC has released a new 13G filing disclosing ownership of 4,162,494 shares of DRIV. This is an increase of 1,078,034 shares over what was reported on 3/29/12.  Soros now has a 10.13% stake in DRIV as of May 4th.

Per Yahoo Finance, Digital River Inc “provides end-to-end global cloud-commerce and marketing solutions.”