MASSACHUSETTS FINANCIAL SERVICES CO /MA/ - SIRIUS XM RADIO INC ownership

SIRIUS XM RADIO INC's ticker is SIRI and the CUSIP is 82967N108. A total of 447 filers reported holding SIRIUS XM RADIO INC in Q2 2013. The put-call ratio across all filers is 1.67 and the average weighting 0.3%.

Quarter-by-quarter ownership
MASSACHUSETTS FINANCIAL SERVICES CO /MA/ ownership history of SIRIUS XM RADIO INC
ValueSharesWeighting
Q3 2013$4,783,300,000
+82.8%
1,234,400
+58.1%
0.00%
+50.0%
Q2 2013$2,616,049,000780,9100.00%
Other shareholders
SIRIUS XM RADIO INC shareholders Q2 2013
NameSharesValueWeighting ↓
ACT II MANAGEMENT, LP 3,006,940$10,494,0002.60%
Avenir Corp 898,952$3,137,0000.28%
Corsair Capital Management 410,038$1,431,0000.16%
Kistler-Tiffany Companies, LLC 102,894$360,0000.14%
GROUP ONE TRADING, L.P. 2,310,096$8,062,0000.12%
ALTFEST L J & CO INC 20,195$70,0000.06%
Horrell Capital Management, Inc. 30,000$105,0000.05%
Douglass Winthrop Advisors, LLC 110,780$387,0000.04%
ParenteBeard Wealth Management, LLC 25,580$89,0000.04%
KING LUTHER CAPITAL MANAGEMENT CORP 1,053,160$3,676,0000.03%
View complete list of SIRIUS XM RADIO INC shareholders