|
Form
|
|
(Filer)
|
Received
(
Period
)
|
| N-Q |
 |
VANGUARD VARIABLE INSURANCE FUNDS |
05/21/13 (03/31/13) |
| 485BPOS |
|
VANGUARD VARIABLE INSURANCE FUNDS |
05/13/13 |
| 497 |
|
VANGUARD VARIABLE INSURANCE FUNDS |
05/03/13 |
| 497 |
|
VANGUARD VARIABLE INSURANCE FUNDS |
05/03/13 |
| 497 |
|
VANGUARD VARIABLE INSURANCE FUNDS |
05/01/13 |
| 497K |
|
VANGUARD VARIABLE INSURANCE FUNDS |
04/30/13 |
| 497K |
|
VANGUARD VARIABLE INSURANCE FUNDS |
04/30/13 |
| 497K |
|
VANGUARD VARIABLE INSURANCE FUNDS |
04/30/13 |
| 497K |
|
VANGUARD VARIABLE INSURANCE FUNDS |
04/30/13 |
| 497K |
|
VANGUARD VARIABLE INSURANCE FUNDS |
04/30/13 |
| 497K |
|
VANGUARD VARIABLE INSURANCE FUNDS |
04/30/13 |
| 497K |
|
VANGUARD VARIABLE INSURANCE FUNDS |
04/30/13 |
| 497K |
|
VANGUARD VARIABLE INSURANCE FUNDS |
04/30/13 |
| 497K |
|
VANGUARD VARIABLE INSURANCE FUNDS |
04/30/13 |
| 497K |
|
VANGUARD VARIABLE INSURANCE FUNDS |
04/30/13 |
| 497K |
|
VANGUARD VARIABLE INSURANCE FUNDS |
04/30/13 |
| 497K |
|
VANGUARD VARIABLE INSURANCE FUNDS |
04/30/13 |
| 497K |
|
VANGUARD VARIABLE INSURANCE FUNDS |
04/30/13 |
| 497K |
|
VANGUARD VARIABLE INSURANCE FUNDS |
04/30/13 |
| 497K |
|
VANGUARD VARIABLE INSURANCE FUNDS |
04/30/13 |