| Employee plan annual report | 11-K | 1996-06-27 | 1995-12-31 |
| Employee plan annual report | 11-K | 1996-06-27 | 1995-12-31 |
| Quarterly report | 10-Q | 1996-05-01 | 1996-03-31 |
| Proxy materials | DEFA14A | 1996-03-28 | - |
| Proxy statement | DEF 14A | 1996-03-12 | 1996-04-16 |
| Annual report | 10-K | 1996-03-11 | 1995-12-31 |
| Passive ownership stake (update) | SC 13G/A | 1996-02-12 | - |
| Passive ownership stake (update) | SC 13G/A | 1996-02-06 | - |
| Passive ownership stake (update) | SC 13G/A | 1996-02-02 | - |
| Passive ownership stake (update) | SC 13G/A | 1996-02-02 | - |
| Passive ownership stake (update) | SC 13G/A | 1996-02-02 | - |
| Passive ownership stake (update) | SC 13G/A | 1996-02-02 | - |
| Major company event | 8-K | 1995-12-26 | 1995-12-21 |
| Quarterly report | 10-Q | 1995-11-13 | 1995-09-30 |
| Quarterly report | 10-Q | 1995-08-10 | 1995-06-30 |
| Employee plan annual report | 11-K | 1995-06-29 | 1994-12-31 |
| Employee plan annual report | 11-K | 1995-06-29 | 1994-12-31 |
| Quarterly report | 10-Q | 1995-05-11 | 1995-03-31 |
| Prospectus supplement | 424B2 | 1995-03-24 | - |
| Prospectus supplement | 424B2 | 1995-03-20 | - |
| Proxy statement | DEF 14A | 1995-03-10 | 1995-04-18 |
| Annual report | 10-K | 1995-03-09 | 1994-12-31 |
| Major company event | 8-K | 1995-03-01 | 1995-02-24 |
| Passive ownership stake (update) | SC 13G/A | 1995-02-10 | - |
| Passive ownership stake (update) | SC 13G/A | 1995-02-09 | - |
| Passive ownership stake (update) | SC 13G/A | 1995-02-09 | - |
| Passive ownership stake | SC 13G | 1995-02-08 | - |
| Passive ownership stake | SC 13G | 1995-02-03 | - |
| Securities registration | S-3 | 1995-01-23 | - |
| Major company event | 8-K | 1995-01-06 | 1994-12-12 |
| Quarterly report | 10-Q | 1994-11-14 | 1994-09-30 |
| Employee stock plan | S-8 | 1994-10-28 | - |
| Quarterly report | 10-Q | 1994-08-10 | 1994-06-30 |
| Employee plan annual report | 11-K | 1994-06-29 | 1993-12-31 |
| Employee plan annual report | 11-K | 1994-06-29 | 1993-12-31 |
| Quarterly report | 10-Q | 1994-05-10 | 1994-03-31 |
| Annual report | 10-K | 1994-03-21 | 1993-12-31 |
| Proxy statement | DEF 14A | 1994-03-21 | 1994-04-19 |
| Passive ownership stake (update) | SC 13G/A | 1994-02-10 | - |
| Passive ownership stake | SC 13G | 1994-02-07 | - |
| Passive ownership stake | SC 13G | 1994-02-07 | - |
| Passive ownership stake | SC 13G | 1994-02-07 | - |
| Passive ownership stake | SC 13G | 1994-02-04 | - |
| Passive ownership stake | SC 13G | 1994-02-04 | - |
