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Institutional Holdings of GILEAD SCIENCES, INC. (GILD) on 12/31/2011

1. Company Information

Company/StockGILEAD SCIENCES, INC. (stock symbol: GILD)
Funds Ownership692 out of total 3028 funds (23%) own this stock
Funds own total 651,558,560 shares, 82.78% of all outstanding shares
Funds BOUGHT 6,547,909 more shares (+1.02%) in the quarter ended on 12/31/2011

2. Top 20 Funds Held GILD in this Quarter (By Shares) Add to Yahoo Finance Message Board

No.FundSharesPut/CallActivity(Shr)% Port.% Out. Shrs
1.)CAPITAL RESEARCH GLOBAL INVESTORS41,045,198Added 55.25%0.75%5.22%
2.)FMR LLC35,295,907Cut -2.84%0.29%4.48%
3.)CAPITAL WORLD INVESTORS32,429,001Added 23.87%0.51%4.12%
4.)VANGUARD GROUP INC30,124,295Cut -0.62%0.20%3.83%
5.)STATE STREET CORP28,206,199Cut -5.29%0.20%3.58%
6.)WELLINGTON MANAGEMENT CO LLP28,160,490Added 74.49%0.45%3.58%
7.)BLACKROCK INSTITUTIONAL TRUST COMPANY NA20,709,340Added 10.07%0.22%2.63%
8.)ALLIANCEBERNSTEIN LP18,801,002Cut -38.68%0.83%2.39%
9.)PRICE T ROWE ASSOCIATES INC MD 16,165,955Added 33.34%0.23%2.05%
10.)INVESCO LTD15,956,323Cut -4.81%0.37%2.03%
11.)TIAA CREF INVESTMENT MANAGEMENT LLC11,581,330Added 18.94%0.46%1.47%
12.)BANK OF NEW YORK MELLON CORP11,296,534Cut -48.21%0.19%1.44%
13.)UBS GLOBAL ASSET MANAGEMENT AMERICAS INC10,565,546Added 48.24%0.69%1.34%
14.)J P MORGAN CHASE & CO9,388,705Added 8.51%0.18%1.19%
15.)NORTHERN TRUST CORP9,320,465Cut -3.82%0.20%1.18%
16.)THORNBURG INVESTMENT MANAGEMENT INC8,816,952Cut -15.03%1.90%1.12%
17.)DEUTSCHE BANK AG 8,768,264Cut -5.26%0.42%1.11%
18.)BANK OF AMERICA CORP DE 8,529,672Cut -1.89%0.22%1.08%
19.)GOLDMAN SACHS GROUP INC7,999,298Added 1.84%0.17%1.02%
20.)BLACKROCK FUND ADVISORS7,990,356Added 2.30%0.18%1.02%



3. Top 20 Funds Held GILD in this Quarter (By % of Portfolio) Add to Yahoo Finance Message Board

No.FundSharesPut/CallActivity(Shr)% Port.% Out. Shrs
1.)PARTNER INVESTMENT MANAGEMENT LP1,457,071New10.67%0.19%
2.)PARTNER FUND MANAGEMENT LP3,887,095New10.50%0.49%
3.)BB BIOTECH AG1,960,000Cut -24.62%9.02%0.25%
4.)VISIUM ASSET MANAGEMENT LP4,091,264Added 5,335.96%7.23%0.52%
5.)WEDGEWOOD PARTNERS INC1,213,955Added 5.49%6.06%0.15%
6.)REDMILE GROUP LLC317,800Cut -11.24%4.85%0.04%
7.)HAMBRECHT & QUIST CAPITAL MANAGEMENT LLC559,945Cut -4.35%4.82%0.07%
8.)RIVERSIDE ADVISORS LLC220,000Cut -21.88%4.69%0.03%
9.)HARVEY CAPITAL MANAGEMENT INC137,199Cut -4.34%4.37%0.02%
10.)CORNERSTONE CAPITAL MANAGEMENT INC MN853,680Added 7.21%4.07%0.11%
11.)BAKER BROS ADVISORS LLC2,886,861New3.91%0.37%
12.)BRIDGER MANAGEMENT LLC1,450,000New3.79%0.18%
13.)PARNASSUS INVESTMENTS CA4,700,000Added 147.37%3.77%0.60%
14.)PLATINUM INVESTMENT MANAGEMENT LTD3,143,731Cut -9.97%3.69%0.40%
15.)PORTER ORLIN LLC1,216,739Cut -47.83%3.54%0.15%
16.)ARGENT CAPITAL MANAGEMENT LLC717,674Cut -0.02%3.14%0.09%
17.)THIRD POINT LLC1,900,000Added 58.33%3.11%0.24%
18.)SUNCOAST EQUITY MANAGEMENT36,155Cut -2.09%2.97%0.00%
19.)LEHRER MANAGEMENT CO INC37,366Cut -16.62%2.94%0.00%
20.)ORBIMED ADVISORS LLC2,180,700Cut -9.59%2.93%0.28%

4. Top 20 Funds BOUGHT NEW GILD in this Quarter (By Shares) Add to Yahoo Finance Message Board

No.FundSharesPut/Call% Port.% Out. Shrs
1.)JANUS CAPITAL MANAGEMENT LLC4,458,2340.21%0.57%
2.)PARTNER FUND MANAGEMENT LP3,887,09510.50%0.49%
3.)BAKER BROS ADVISORS LLC2,886,8613.91%0.37%
4.)PARTNER INVESTMENT MANAGEMENT LP1,457,07110.67%0.19%
5.)BRIDGER MANAGEMENT LLC1,450,0003.79%0.18%
6.)BLUE RIDGE CAPITAL LLC1,340,0001.04%0.17%
7.)VIKING GLOBAL INVESTORS LP1,064,3000.45%0.14%
8.)RENAISSANCE GROUP LLC1,061,0031.39%0.13%
9.)FRIESS ASSOCIATES LLC940,0000.94%0.12%
10.)HEALTHCOR MANAGEMENT LP875,0001.35%0.11%
11.)MILLENNIUM MANAGEMENT LLC828,100CALL0.28%0.11%
12.)ATALANTA SOSNOFF CAPITAL LLC825,8950.53%0.10%
13.)MADISON SQUARE INVESTORS LLC664,2000.29%0.08%
14.)WEDGE CAPITAL MANAGEMENT L L P NC644,1670.37%0.08%
15.)ZWEIG DIMENNA PARTNERS L P438,3201.04%0.06%
16.)CAPITAL FUND MANAGEMENT SA396,8360.30%0.05%
17.)P&S CREDIT MANAGEMENT LP350,000PUT1.45%0.04%
18.)HUTCHIN HILL CAPITAL LP325,0002.58%0.04%
19.)SANDLER CAPITAL MANAGEMENT300,000PUT0.95%0.04%
20.)ALTA ADVISERS LTD275,3911.59%0.03%

5. Top 20 Funds SOLD OUT GILD in this Quarter (By Shares) Add to Yahoo Finance Message Board

No.FundSharesPut/Call% Port.% Out. Shrs
1.)JANUS CAPITAL MANAGEMENT LLC5,694,1560.27%0.72%
2.)WESTFIELD CAPITAL MANAGEMENT CO LLC4,830,6041.49%0.61%
3.)SECTORAL ASSET MANAGEMENT INC1,155,9581.99%0.15%
4.)MADISON SQUARE INVESTORS LLC1,115,4410.48%0.14%
5.)HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC773,3000.22%0.10%
6.)TIMBER HILL LLC759,300CALL0.07%0.10%
7.)JENNISON ASSOCIATES LLC749,9390.05%0.10%
8.)SAWGRASS ASSET MANAGEMENT LLC747,4902.67%0.09%
9.)BURGUNDY ASSET MANAGEMENT LTD727,0410.81%0.09%
10.)PAX WORLD MANAGEMENT CORP667,3961.99%0.08%
11.)EXPO CAPITAL MANAGEMENT LLC650,0004.51%0.08%
12.)QUAKER CAPITAL MANAGEMENT CORP545,6973.22%0.07%
13.)TIMBER HILL LLC509,600PUT0.05%0.06%
14.)SAMLYN CAPITAL LLC485,3000.74%0.06%
15.)CI GLOBAL HOLDINGS INC431,0001.75%0.05%
16.)INVESTOR RESOURCES GROUP LLC415,8951.02%0.05%
17.)ROBECO INVESTMENT MANAGEMENT INC297,8490.07%0.04%
18.)AXA FINANCIAL INC291,5590.07%0.04%
19.)KNOTT DAVID M268,3491.29%0.03%
20.)ING INVESTMENT MANAGEMENT (EUROPE) BV257,2520.11%0.03%