Potential Winners and Losers in Today’s Onyx Pharmaceuticals (ONXX) Action

Posted on June 21st, 2012 by whalewisdom

Onyx Pharmaceuticals (ONXX) is up over 37% at the time of this posting on news that Onyx’s myeloma drug received approval from the DFA’s Oncologic Drugs Advisory Committee.  Here’s a quick snapshot of potential fund winner’s and loser’s in the stock based on March 31st 13F holdings data.

Winners in ONXX – 13F filers with ONXX representing at least 1% of their 13F holdings for Q1 2012.
Filer
Shares Held
Market Value
% of
Portfolio
Prior
% of Portfolio
Ranking
Change in
Shares
SECTORAL ASSET MANAGEMENT INC 3,381,087 $ 127,399,359 4.64% 5.48% 1 480,566
MEDITOR GROUP LTD 2,231,803 $ 84,094,338 10.99% 13.11% 3 50,000
ROC CAPITAL MANAGEMENT, L.P. 16,361 $ 616,482 1.79% 1.22% 5 3,759
ORACLE INVESTMENT MANAGEMENT INC 942,000 $ 35,494,560 5.92% 8.45% 6 283,000
ULYS, LLC 650,000 $ 24,492,000 1.84% 1.74% 6 275,000
SPARTA ASSET MANAGEMENT, LLC 500,350 $ 18,853,188 3.21% 4.03% 7 18,277
REDMILE GROUP, LLC 390,841 $ 14,726,889 5.08% 6.42% 7 8,100
PENTWATER CAPITAL MANAGEMENT LP 1,710,000 $ 64,432,801 2.11% 1.34% 8 410,000
EXPO CAPITAL MANAGEMENT LLC 550,000 $ 20,724,000 3.96% 3.77% 10 200,000
SECTOR GAMMA AS 413,100 $ 15,565,608 3.95% 3.83% 11 105,900
PALO ALTO INVESTORS, LLC 838,745 $ 31,603,912 3.50% 4.33% 12 40,300
MAZAMA CAPITAL MANAGEMENT INC 107,467 $ 4,049,357 1.13% 1.31% 12 9,518
Losers in ONXX.  13F filers who sold shares during Q1 2012
Filer
Shares Held
Market Value
% of
Portfolio
Prior
% of Portfolio
Ranking
Change in
Shares
FMR LLC 4,281,072 $ 161,310,794 0.03% 0.05% 588 -1,489,023
TURNER INVESTMENTS, L.P. 744,005 $ 28,034,109 0.26% 0.73% 115 -1,087,433
CITADEL ADVISORS LLC 0 $ 0 0.00 0.09% Sold All -875,724
D. E. SHAW & CO., INC. 1,709,616 $ 64,418,331 0.17% 0.30% 79 -797,359
RIDGEBACK CAPITAL INVESTMENTS L.P. 0 $ 0 0.00 23.20% Sold All -790,000
SAC CAPITAL ADVISORS LP 409,584 $ 15,433,125 0.07% 0.30% 244 -666,584
POINTSTATE CAPITAL LP 0 $ 0 0.00 2.04% Sold All -602,800
BRIDGER MANAGEMENT, LLC 500,000 $ 18,840,000 1.31% 3.02% 26 -575,000

 

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