Technology: Scientific & Technical Instruments

As of March 31, 2013
Closing price on 03/31/2013: $4.72
Filers who had this stock in their top 10: 1
13F Filers holding this stock: 114
Aggregate shares on 03/31/2013: 68,967,790
Aggregate shares on 12/31/2012: 68,928,962
Percent change: 0.06%
Funds creating new positions: 11
Funds Adding to an existing position: 53
Funds closing out their position: 22
Funds reducing their position: 44
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Schedule 13D and 13G filings submitted since 03/31/2013

Filing Company Date of
Filing
Total Reported
Shares Owned
Shares Reported
on 13F
SC 13G/A VANGUARD GROUP INC 02/11/2013 4,218,924 3,233,444
SC 13G/A VANGUARD GROUP INC 02/22/2013 4,218,924 3,233,444

13F Filers holding this stock

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Changes in Holdings:

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*Shares are split adjusted
*Please note that if a filer hasn't submitted a 13F filing for a quarter then the filer's shares will be listed as "Sold All"