| Quarterly report | 10-Q | 1994-08-12 | 1994-06-30 |
| 424B3 | - | 1994-08-12 | - |
| Major company event | 8-K | 1994-08-12 | 1994-08-10 |
| 424B3 | - | 1994-08-10 | - |
| Major company event (amended) | 8-K/A | 1994-08-10 | 1994-06-10 |
| Employee stock plan | S-8 | 1994-07-29 | - |
| Major company event | 8-K | 1994-07-26 | 1994-06-10 |
| Major company event | 8-K | 1994-07-19 | 1994-07-18 |
| Employee plan annual report | 11-K | 1994-06-27 | 1993-12-31 |
| Employee plan annual report | 11-K | 1994-06-27 | 1993-12-30 |
| S-3/A | - | 1994-06-10 | - |
| Quarterly report (amended) | 10-Q/A | 1994-06-07 | 1994-03-31 |
| S-3/A | - | 1994-05-19 | - |
| Quarterly report | 10-Q | 1994-05-16 | 1994-03-31 |
| Securities registration | S-3 | 1994-05-16 | - |
| Major company event (amended) | 8-K/A | 1994-05-04 | 1994-03-01 |
| Major company event | 8-K | 1994-04-20 | 1994-04-20 |
| Proxy statement | DEF 14A | 1994-04-19 | 1994-05-19 |
| Major company event | 8-K | 1994-04-12 | 1994-03-24 |
| Annual report | 10-K | 1994-03-31 | 1993-12-31 |
| Activist ownership stake (update) | SC 13D/A | 1994-03-04 | - |
| Passive ownership stake (update) | SC 13G/A | 1994-03-01 | - |
| S-8 POS | - | 1994-03-01 | - |
| 8-A12B/A | - | 1994-02-25 | - |
| 8-A12B | - | 1994-02-23 | - |
| Employee stock plan | S-8 | 1994-02-16 | - |
| S-3/A | - | 1994-02-16 | - |
| Passive ownership stake (update) | SC 13G/A | 1994-02-15 | - |
| Passive ownership stake (update) | SC 13G/A | 1994-02-15 | - |
| Passive ownership stake (update) | SC 13G/A | 1994-02-15 | - |
| Passive ownership stake | SC 13G | 1994-02-14 | - |
| Passive ownership stake (update) | SC 13G/A | 1994-02-14 | - |
| Passive ownership stake (update) | SC 13G/A | 1994-02-14 | - |
| Passive ownership stake (update) | SC 13G/A | 1994-02-14 | - |
| Passive ownership stake (update) | SC 13G/A | 1994-02-14 | - |
| Passive ownership stake (update) | SC 13G/A | 1994-02-14 | - |
| Passive ownership stake (update) | SC 13G/A | 1994-02-14 | - |
| Passive ownership stake (update) | SC 13G/A | 1994-02-14 | - |
| Passive ownership stake (update) | SC 13G/A | 1994-02-14 | - |
| Passive ownership stake (update) | SC 13G/A | 1994-02-14 | - |
| Passive ownership stake (update) | SC 13G/A | 1994-02-14 | - |
| Passive ownership stake (update) | SC 13G/A | 1994-02-14 | - |
| Passive ownership stake | SC 13G | 1994-02-14 | - |
| Passive ownership stake | SC 13G | 1994-02-14 | - |
| Passive ownership stake (update) | SC 13G/A | 1994-02-14 | - |
| Passive ownership stake (update) | SC 13G/A | 1994-02-14 | - |
| Passive ownership stake | SC 13G | 1994-02-14 | - |
| Passive ownership stake (update) | SC 13G/A | 1994-02-14 | - |
| Passive ownership stake (update) | SC 13G/A | 1994-02-14 | - |
| Passive ownership stake (update) | SC 13G/A | 1994-02-14 | - |
