GROUP ONE TRADING, L.P. - SOURCEFIRE INC ownership

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SOURCEFIRE INC's ticker is and the CUSIP is 83616T908.

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Quarter-by-quarter ownership
GROUP ONE TRADING, L.P. ownership history of SOURCEFIRE INC
ValueSharesWeighting
Q3 2013$4,252,000
+269.7%
56,000
+170.5%
0.08%
+189.3%
Q2 2013$1,150,000–20,700–0.03%–
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Other shareholders

There were no reported owners of SOURCEFIRE INC in Q4 2013.

NameSharesValueWeighting ↓
View complete list of SOURCEFIRE INC shareholders