Ownership history in D. E. Shaw & Co., Inc. · 10 quarters on record
This page tracks every 13F SEC filing in which D. E. Shaw & Co., Inc. reported a position in CIPHERGEN BIOSYSTEMS INC COM (CIPH). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.
| Quarter | Action | Shares | Change | Chg % | % of Fund | Mkt Value | Price (EOQ) |
|---|---|---|---|---|---|---|---|
| 2007 Q2 | UNCHANGED | 53,833 | — | 0% | 0.00% | $75K | — |
| 2007 Q1 | REDUCED | 53,833 | -16,867 | -23.9% | 0.00% | $75K | — |
| 2006 Q4 | REDUCED | 70,700 | -200 | -0.3% | 0.00% | $63K | — |
| 2006 Q3 | REDUCED | 70,900 | -41,013 | -36.6% | 0.00% | $94K | — |
| 2006 Q2 | REDUCED | 111,913 | -8,100 | -6.7% | 0.00% | $124K | — |
| 2006 Q1 | REDUCED | 120,013 | -44,983 | -27.3% | 0.00% | $191K | — |
| 2005 Q4 | REDUCED | 164,996 | -51,709 | -23.9% | 0.00% | $195K | — |
| 2005 Q3 | ADDED | 216,705 | +45,792 | +26.8% | 0.00% | $401K | — |
| 2005 Q2 | ADDED | 170,913 | +84,100 | +96.9% | 0.00% | $326K | — |
| 2005 Q1 | INITIATED | 86,813 | — | — | 0.00% | $240K | — |
As of 2007 Q2 — sorted by position size