WELLINGTON MANAGEMENT GROUP LLP - ON SEMICONDUCTOR CORP ownership

ON SEMICONDUCTOR CORP's ticker is and the CUSIP is 682189AH8. A total of 41 filers reported holding ON SEMICONDUCTOR CORP in Q2 2013. The put-call ratio across all filers is - and the average weighting 0.3%.

Quarter-by-quarter ownership
WELLINGTON MANAGEMENT GROUP LLP ownership history of ON SEMICONDUCTOR CORP
ValueSharesWeighting
Q4 2013$12,007,000
-4.0%
10,922,000
-5.6%
0.00%
-25.0%
Q3 2013$12,501,000
-9.5%
11,568,000
-3.7%
0.00%
-20.0%
Q2 2013$13,807,00012,013,0000.01%
Other shareholders
ON SEMICONDUCTOR CORP shareholders Q2 2013
NameSharesValueWeighting ↓
ANGELO GORDON & CO., L.P. 28,238,000$31,574,0002.29%
Ferox Capital Management LP 3,606,000$4,020,0001.43%
MACKAY SHIELDS LLC 19,192,000$21,511,0001.12%
IRON Financial LLC 1,390,000$1,569,0001.04%
RWC Asset Management LLP 8,200,000$9,109,0000.72%
Achievement Holdings L.P. 809,524$7,610,0000.63%
SSI INVESTMENT MANAGEMENT LLC 4,760,000$5,292,0000.57%
SILVERBACK ASSET MANAGEMENT LLC 4,500,000$5,012,0000.52%
Calamos Advisors LLC 64,471,000$72,137,0000.50%
Freedom Investment Management, Inc. 7,088,639$4,820,0000.49%
View complete list of ON SEMICONDUCTOR CORP shareholders