IMPERVA INC's ticker is and the CUSIP is 45321L950. A total of 3 filers reported holding IMPERVA INC in Q4 2014. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q2 2016 | $1,617,000 | +25.5% | 37,600 | +47.5% | 0.00% | 0.0% |
| Q1 2016 | $1,288,000 | +203.8% | 25,500 | +280.6% | 0.00% | – |
| Q4 2015 | $424,000 | -65.2% | 6,700 | -64.0% | 0.00% | -100.0% |
| Q3 2015 | $1,218,000 | +13.2% | 18,600 | +17.0% | 0.00% | 0.0% |
| Q2 2015 | $1,076,000 | +15.1% | 15,900 | -27.4% | 0.00% | 0.0% |
| Q1 2015 | $935,000 | +42.3% | 21,900 | +64.7% | 0.00% | 0.0% |
| Q4 2014 | $657,000 | -3.1% | 13,300 | -43.6% | 0.00% | 0.0% |
| Q3 2014 | $678,000 | -55.4% | 23,600 | -59.4% | 0.00% | -50.0% |
| Q2 2014 | $1,521,000 | +301.3% | 58,100 | +754.4% | 0.00% | – |
| Q1 2014 | $379,000 | +689.6% | 6,800 | +580.0% | 0.00% | – |
| Q4 2013 | $48,000 | – | 1,000 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| GROUP ONE TRADING, L.P. | 3,200 | $158,000 | 0.00% |
| Citadel Advisors | 13,300 | $657,000 | 0.00% |
| SIMPLEX TRADING, LLC | 16 | $1,000 | 0.00% |