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Fund Holdings of DEERFIELD MANAGEMENT CO NY Filed on 2012-02-14

Link to Original SEC 13F filings sorted on filing date: 2012-02-14 | 2011-11-14 | 2011-08-12 | 2011-05-16 | 2011-02-14 | 2010-11-15 | 2010-08-11 | 2010-05-17 | 2010-02-16 | 2009-11-16 | 2009-08-14 | 2009-04-24 | 2009-02-17 | 2008-11-14 | 2008-08-14 | 2008-05-15 |

1. Fund Information

Fund NameDEERFIELD MANAGEMENT CO NY
Fund Manager
Address780 THIRD AVENUE, 37TH FLOOR
NEW YORK, NY, 10017
::Google Map
Phone(212) 551-1600
13F Asset Last Qtr$1,741,858,000
13F Asset This Qtr$1,904,961,000
Asset Change9.36%

2. Comparison of Holdings by Sectors with Last Quarter

3. Top 20 Holdings (Value) of This Quarter

No.SecurityPut/CallStockSharesValue(x$1000)Activity(Shr)% Port.
1.)AMYLIN PHARMACEUTICALS INC NOTE 3.000% 6/1205,891,000$183,243Added 28.14%9.62%
2.)ALKERMES PLCALKS5,750,380$99,827New5.24%
3.)ONYX PHARMACEUTICALS INC NOTE 4.000% 8/150,333,000$66,852Unchanged3.51%
4.)MYLAN INC.MYL2,927,260$62,819Added 9.57%3.30%
5.)HALOZYME THERAPEUTICS, INC.HALO6,537,316$62,170Cut -6.74%3.26%
6.)RIGEL PHARMACEUTICALS, INC.RIGL7,026,071$55,436Unchanged2.91%
7.)FOREST LABORATORIES, INC.FRX1,595,246$48,272Added 14.56%2.53%
8.)BRISTOL-MYERS SQUIBB CO.BMY1,405,558$46,004Added 7.66%2.41%
9.)TEVA PHARMACEUTICAL INDUSTRIES LIMITED - AMERICAN DEPOSITARY SHARES, EACH REPRESENTING ONETEVA1,138,081$45,933Cut -37.65%2.41%
10.)NEKTAR THERAPEUTICS NOTE 3.250% 9/243,159,000$43,105Added 1.55%2.26%
11.)MOLINA HEALTHCARE INC NOTE 3.750%10/040,950,000$43,016Unchanged2.26%
12.)PFIZER INCPFE1,960,000$42,414Cut -13.27%2.23%
13.)TEVA PHARMACEUTICAL INDUSTRIES LIMITED - AMERICAN DEPOSITARY SHARES, EACH REPRESENTING ONECALLTEVA1,000,000$40,360Unchanged2.12%
14.)NUVASIVE INC NOTE 2.250% 3/140,235,000$39,330Unchanged2.06%
15.)THE MEDICINES COMPANYMDCO2,054,897$38,303Cut -50.06%2.01%
16.)PFIZER INCCALLPFE1,750,000$37,870Unchanged1.99%
17.)INTERMUNE INC NOTE 2.500% 9/148,670,000$36,137Added 45.03%1.90%
18.)MERCK & CO., INCCALLMRK950,000$35,815Unchanged1.88%
19.)MEDIVATION, INC.MDVN769,936$35,502Cut -24.49%1.86%
20.)EXPRESS SCRIPTS, INC.ESRX745,000$33,294Cut -6.97%1.75%

4. Top 20 (Value) Holdings BOUGHT NEW in This Quarter

No.SecurityPut/CallStockShares NEWValue(x$1000)% Port.
1.)ALKERMES PLCALKS5,750,380$99,8275.24%
2.)ST. JUDE MEDICAL, INC.STJ805,000$27,6121.45%
3.)HOLOGIC INC FRNT 2.000%12/128,170,000$26,9781.42%
4.)SALIX PHARMACEUTICALS INC456,688$21,8531.15%
5.)UNIVERSAL HEALTH SERVICES, INC.UHS523,000$20,3241.07%
6.)CIGNA CORP.CI300,000$12,6000.66%
7.)CONMED CORPORATIONCNMD390,000$10,0110.53%
8.)OMNICARE INC.CALLOCR200,000$6,8900.36%
9.)AMYLIN PHARMACEUTICALS, INC.AMLN556,567$6,3340.33%
10.)AMYLIN PHARMACEUTICALS, INC.CALLAMLN500,000$5,6900.30%
11.)PHARMASSET, INC.VRUS42,500$5,4490.29%
12.)TEAM HEALTH HOLDINGS, INC. TEAM HEALTH HOLDINGS, INC.TMH232,166$5,1240.27%
13.)AETNA INC.CALLAET100,000$4,2190.22%
14.)DENDREON CORPORATIONPUTDNDN500,000$3,8000.20%
15.)SANTARUS, INC.SNTS847,582$2,8050.15%
16.)CHELSEA THERAPEUTICS INTERNATIONAL, LTD.CHTP450,000$2,3090.12%
17.)NEWLINK GENETICS CORP275,000$1,9360.10%
18.)HEALTHWAYS, INC.HWAY238,612$1,6370.09%
19.)CUTERA, INC.CUTR75,000$5590.03%
20.)CAPITAL SENIOR LIVING CORP.CSU63,280$5020.03%

5. Top 20 (Value) Holdings Totally SOLD OUT in This Quarter

No.SecurityPut/CallStockShares SOLDValue(x$1000)% Port. Last Qtr
1.)DENDREON CORP NOTE 2.875% 1/148,033,000$35,8842.06%
2.)SALIX PHARMACEUTICALS, LTD.SLXP1,159,725$34,3281.97%
3.)CONCEPTUS INC NOTE 2.250% 2/124,825,000$24,5771.41%
4.)ZOLL MEDICAL CORPORATIONZOLL488,329$18,4301.06%
5.)GEN-PROBE INCORPORATEDGPRO275,000$15,7440.90%
6.)CARDINAL HEALTH, INC.CAH334,000$13,9880.80%
7.)SERVICE CORP. INTERNATIONALSCI1,064,229$9,7480.56%
8.)AMERIGROUP CORPAGP220,000$8,5820.49%
9.)TRIPLE-S MANAGEMENT CORPORATION CLASS B COMMON STOCKGTS443,261$7,4250.43%
10.)EXPRESS SCRIPTS, INC.CALLESRX200,000$7,4140.43%
11.)KINDRED HEALTHCARE INCKND858,000$7,3960.43%
12.)PROGENICS PHARMACEUTICALS INC.PGNX1,263,893$7,2550.42%
13.)MEDCO HEALTH SOLUTIONS, INC.MHS150,204$7,0430.40%
14.)VERTEX PHARMACEUTICALS INCORPORATEDPUTVRTX150,000$6,6700.38%
15.)PDL BIOPHARMA INC NOTE 3.750% 5/05,000,000$4,7490.27%
16.)CEPHALON, INC.CEPH57,126$4,6100.27%
17.)DYNAVAX TECHNOLOGIES CORPORATIONDVAX1,724,691$3,2080.18%
18.)AMGEN INC.AMGN56,382$3,0990.18%
19.)TENET HEALTHCARE CORP.THC600,010$2,4660.14%
20.)WELLPOINT INCWLP32,758$2,1380.12%