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		*Sorry about formatting on bottom set of numbers
 SiriusHope: From my e-trade account. It shows 18% ownership. Am really curious where you, Investor Relations, and Tyler get their 54% number.
 
 Total Number of Shares Held	             595,960,588
 Large Block Owners 		312
 Percent Shares Owned  		18.00%
 Percent Change in Ownership 	2.00%
 
 0.40% Brokerage Firms
 16.10% Investment Managers
 1.50% Strategic Entities
 82.00% Non-Institutional
 
 Regional Holdings
 North America 16.30%
 Europe 0.90%
 Unknown 0.60%
 
 Monthly Share Rotation
 Type 		 Number of Shares Value of Change 	Shares Outstanding
 Buyers 10/23/08     12,025,562 	  $6,854,568 		0.30%
 Sellers 10/23/08      338,761 	  $193,095 		0.00%
 
 Concentration of Shares Held
 18.00% All Institutions
 17.70%  Top 50 Institutions
 14.70%  Top 20 Institutions
 12.60%  Top 10 Institutions
 
 82.00% Other Owners
 
 Name 			     Shares Held Position Value % of TotalHoldings Outstanding Shares Owned
 Apollo Investment Management 91.9 M      $153.4 M       15.41              17.22%
 Barclays Global Investors,        35.1 M       $68.0 M         5.89               7.64%
 ClearBridge Advisors                34.0 M      $65.9 M         5.70               7.40%
 Jennison Associates LLC           47.6 M      $63.3 M         7.98               7.11%
 Karmazin (Mel)                        24.5 M      $70.0 M         4.12               7.86%
 Nasdaq-100 Trust (QQQ)          17.8 M      $56.8 M         2.98               6.37%
 OppenheimerFunds, Inc.            71.0 M      $137.6 M       11.92              15.46%
 State Street Global Advisors     21.2 M      $41.1 M         3.56               4.62%
 TIAA-CREF                             11.4 M      $22.2 M         1.92               2.49%
 Vanguard Group, Inc.               39.7 M      $77.0 M         6.67               8.65%
 
 
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		Let's see now......so we have 12%, 15%, 18%, and 54%. 
 
 What is the actual number?
 
 We need some clarity!
 
 
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		Exactly! We don't have one single fact with this stock. Need to start somewhere and finding out  what the percentage of institutional investment is, is a good place to start. 
 
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		lol  ! 
		i'm going around the house and cleaning out my car looking for quarters.  with in mind knowing every one i find is a share of SIRI .  hopefully it'll get down to dimes , found lots of those.  i'm gonna make two more large purchases before Christmas and make a wish.  funny thing being new to the market , so far i've lost an average of 55% of all my stocks ,  that i purchased at the same time. ( wouldn't be this low if i didn't have SIRI stocks )  in august i decided to teach english in thailand for 2009.  i needed something to keep me busy while i'm there so i purchased stocks for the first time.  i figure it'll be fun to ride the roller coaster and eventually earn extra cash and plan for my financial future.  
 
 my first time purchases -  Beyond Petroleum - :cool:
 Microsoft             - :thumbup:
 Applied Materials   - :(
 Sirius XM             - :annoyed:
 
 out of these four , i was the most passionate for SIRI , and did my research and let my optimistic inhibitions get the best of me.  does that make me a loser.  yes it does !  considering i bought it at $ 2.25 a share , " sooo----
 ooooooooo i'm a loser baby , so why don't cha kill me "
 
 
 i'm bored
 
 
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		OTONE...go to nasdaq.com and insert SIRI then click on holders. 
 
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		The inst. numbers in the teens come from Sirius pre-merger. I do not think they have accurate combined numbers yet.
 
 54% comes from 75% (or so) inst. ownership for XM combined with the 18% (or so) inst owership of Sirius. If you look at share counts and the conversions of those XM shares, the numbers end up somewhere around 54%.
 
 I did the math on this on Yahoo a while back. I do not think it is accurate anymore, but is where I believe the 54% comes from.
 
 
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		FWIW, I do believe that all of the sources are basing the number on estimates following closing of the merger. Some of them did the conversion of XM shares to Sirius, others just have it based on the last 13F filing for Sirius -- which was a pre merger filing.
 
 The problem is that there have been no 13F filings yet since the merger closed. Scratch that, the 13F filings that have been filed are based on holdings as of 6/30/08, which of course is before the merger closed -- so none of these sources are likely even close.
 
 You will have your more accurate answer in about 3 weeks -- as current 13F filings are due for holdings as of 9/30/08.
 
 IMHO, the estimate will be much more than 20%, but probably lower than 50% -- because so many institutions dumped after the price tanked. But this is pure speculation on my part.
 
 
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		13F Filings are due by November 14th, so you should start to see fluctuations in the ownership % over the next 3 weeks... then have a rough idea after that date. 
 
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		SiriusHope, thanks for that. Jmm232 and Homer thanks as well.