Optimer Pharmaceuticals, Inc. (OPTR)
Healthcare: Biotechnology
| Closing price on 03/31/2013: | $11.90 |
| Filers who had this stock in their top 10: | 0 |
| 13F Filers holding this stock: | 96 |
| Aggregate shares on 03/31/2013: | 42,878,153 |
| Aggregate shares on 12/31/2012: | 41,050,660 |
| Percent change: | 4.45% |
| Funds creating new positions: | 17 |
| Funds Adding to an existing position: | 38 |
| Funds closing out their position: | 18 |
| Funds reducing their position: | 36 |
| View recent insider trading info | |
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 | VANGUARD GROUP INC | 02/13/2013 | 2,517,642 | 2,509,012 |