| Date Filed | Type | Description |
| 10/21/2015 |
SC 13D/A
| PHAROL, SGPS S.A. reports a 40.7% stake in Oi S.A. |
| 08/07/2015 |
SC 13D/A
| PHAROL, SGPS S.A. reports a 39% stake in Oi S.A. |
| 04/15/2015 |
SC 13D/A
| PHAROL, SGPS S.A. reports a 49.4% stake in Oi S.A. |
| 09/17/2014 |
SC 13D/A
| PHAROL, SGPS S.A. reports a 49.4% stake in Oi S.A. |
| 07/28/2014 |
SC 13D/A
| PHAROL, SGPS S.A. reports a 49.4% stake in Oi S.A. |
| 05/14/2014 |
SC 13D/A
| Form SC 13D/A - General statement of acquisition of beneficial ownership: [Amend] |
| 02/27/2014 |
SC 13D/A
| PHAROL, SGPS S.A. reports a 63.5% stake in Oi S.A. |
| 11/06/2013 |
SC 13D/A
| Ongoing Strategy Investments, SGPS, S.A. reports a 10% stake in PORTUGAL TELECOM, SGPS S.A. |
| 10/08/2013 |
SC 13D/A
| Telemar Norte Leste S.A. reports a 10% stake in Portugal Telecom SGPS S.A. |
| 10/07/2013 |
SC 13D/A
| PHAROL, SGPS S.A. reports a 63.5% stake in Oi S.A. |
| 06/13/2012 |
SC 13D
| PHAROL, SGPS S.A. reports a 63.5% stake in Oi S.A. |
| 05/29/2012 |
SC 13D/A
| Telemar Norte Leste S.A. reports a 10% stake in Portugal Telecom SGPS S.A. |
| 02/14/2012 |
SC 13G/A
| Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend] |
| 04/29/2011 |
SC 13D
| Form SC 13D - General statement of acquisition of beneficial ownership |
| 02/14/2011 |
SC 13G/A
| Form SC 13G - Statement of acquisition of beneficial ownership by individuals [amend] |
| 06/30/2010 |
SC 13G/A
| Form SC 13G - Statement of acquisition of beneficial ownership by individuals [amend] |
| 01/09/2009 |
SC 13G/A
| Form SC 13G/A -- Statement of acquisition of beneficial ownership by individuals [amend] |