News + Filings Holdings
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VANGUARD GROUP INC
> STST
| Date | Name | Ticker | Shares | Change | Value | Change | Price |
| 06/30/2010 | ARGON ST, Inc. | STST | 566,533 | 24,269 | 19,426,000 | 4,996,000 | $34.29 |
| 03/31/2010 | ARGON ST, Inc. | STST | 542,264 | 13,967 | 14,430,000 | 2,955,000 | $26.61 |
| 12/31/2009 | ARGON ST, Inc. | STST | 528,297 | 18,216 | 11,475,000 | 1,758,000 | $21.72 |
| 09/30/2009 | ARGON ST, Inc. | STST | 510,081 | 7,716 | 9,717,000 | -277,000 | $19.05 |
| 06/30/2009 | ARGON ST, Inc. | STST | 502,365 | 44,117 | 9,994,000 | 1,301,000 | $19.89 |
| 03/31/2009 | ARGON ST, Inc. | STST | 458,248 | 19,001 | 8,693,000 | 409,000 | $18.97 |
| 12/31/2008 | ARGON ST, Inc. | STST | 439,247 | 34,772 | 8,284,000 | -1,217,000 | $18.86 |
| 09/30/2008 | ARGON ST, Inc. | STST | 404,475 | 394,868 | 9,501,000 | 9,113,625 | $23.49 |
| 06/30/2008 | ARGON ST, Inc. | STST | 9,607 | 3,452 | 387,375 | 25,508 | $40.32 |
| 03/31/2008 | ARGON ST, Inc. | STST | 6,155 | -499 | 361,867 | 3,325 | $58.79 |
| 12/31/2007 | ARGON ST, Inc. | STST | 6,654 | 6,654 | 358,542 | 358,542 | $53.88 |
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