Arena Pharmaceuticals Inc (NASDAQ:ARNA)

Data as of Dec 18
 +0.14 / +3.59%
Today’s Change
Today|||52-Week Range
Institutional investors control 49.46% of the outstanding shares in ARNA. This represents a greater percentage of ownership than at almost any other company in the Biotechnology industry. Additionally, during the quarter ended September 2014, these large investors purchased a net $2.5 million shares.
Individual stakeholders4.62%
Mutual fund holders27.10%
Other institutional22.36%

Largest Quarterly Institutional

Latest Institutional Activity

9/30/2014WELLINGTON MANAGEMENT CO. LLP  Bought 1.7 Million shares of Arena Pharmaceuticals Inc
9/30/2014DEERFIELD MANAGEMENT CO. LP  Bought 1.5 Million shares of Arena Pharmaceuticals Inc
9/30/2014INVESCO POWERSHARES CAPITAL MANA...  Bought 1.2 Million shares of Arena Pharmaceuticals Inc

Top 10 Owners of Arena Pharmaceuticals Inc

Total value ($)Shares
bought / sold
Wellington Management Co. LLP13.46%29,627,959124,141,148+1,734,572+6.22%
BlackRock Fund Advisors6.14%13,520,40156,650,480-318,770-2.30%
The Vanguard Group, Inc.6.00%13,206,38755,334,762-137,590-1.03%
SSgA Funds Management, Inc.3.44%7,563,75331,692,125+926,024+13.95%
OppenheimerFunds, Inc.3.18%7,000,00029,330,00000.00%
Deerfield Management Co. LP2.66%5,847,99924,503,116+1,478,933+33.85%
Susquehanna Financial Group LLLP1.79%3,930,55116,469,009-37,144-0.94%
Invesco PowerShares Capital Manag...1.21%2,669,92411,186,982+1,173,294+78.40%
Northern Trust Investments, Inc.1.16%2,561,28310,731,776-21,229-0.82%
Norges Bank Investment Management0.76%1,678,1287,031,356+1,678,128--

Top 10 Mutual Funds Holding Arena Pharmaceuticals Inc

Mutual fundStakeShares
Total value ($)Shares
bought / sold
Oppenheimer Global Opportunities ...3.18%7,000,00029,330,00000.00%
SPDR S&P Biotech ETF1.76%3,869,47916,213,117-127,377-3.19%
Vanguard Small Cap Index Fund1.73%3,808,19915,956,354+13,535+0.36%
Vanguard Total Stock Market Index...1.64%3,605,58015,107,380+110,342+3.16%
iShares Russell 2000 ETF1.50%3,306,70013,855,073+35,808+1.09%
iShares Nasdaq Biotechnology ETF1.28%2,823,84011,831,890+141,876+5.29%
PowerShares Dynamic Biotechnology...1.23%2,716,75411,383,199+46,830+1.75%
Vanguard Small Cap Growth Index F...1.17%2,570,91110,772,117-9,893-0.38%
Vanguard Extended Market Index Fu...0.91%2,009,3778,419,290-65,746-3.17%
Vanguard Capital Value Fund0.73%1,605,3116,726,253-55,782-3.36%

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