News + Filings Transactions Holdings
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WELLINGTON MANAGEMENT GROUP LLP
> STST
| Date | Name | Ticker | Shares | Change | Value | Change | Price |
| 03/31/2010 | ARGON ST, Inc. | STST | 835,510 | 762,080 | 22,233,000 | 20,638,000 | $26.61 |
| 12/31/2009 | ARGON ST, Inc. | STST | 73,430 | 73,430 | 1,595,000 | 1,595,000 | $21.72 |
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