| Date Filed | Type | Description |
| 02/23/2015 |
SC TO-I/A
| Form SC TO-I/A - Tender offer statement by Issuer: [Amend] |
| 02/17/2015 |
SC 13G
| ARISTEIA CAPITAL LLC reports a 5.8% stake in Cubist Pharmaceuticals Inc. |
| 02/13/2015 |
SC 13G/A
| FMR LLC reports a 10.7% stake in CUBIST PHARMACEUTICALS INC |
| 02/10/2015 |
SC 13G/A
| VANGUARD GROUP INC reports a 6.2% stake in Cubist Pharmaceuticals Inc |
| 02/10/2015 |
SC 13G/A
| FMR LLC reports a 2.3% stake in CUBIST PHARMACEUTICALS INC |
| 01/27/2015 |
SC TO-I/A
| Form SC TO-I/A - Tender offer statement by Issuer: [Amend] |
| 01/22/2015 |
SC TO-I
| Form SC TO-I - Tender offer statement by Issuer: |
| 01/22/2015 |
SC TO-T/A
| Form SC TO-T/A - Tender offer statement by Third Party: [Amend] |
| 01/21/2015 |
8-K
| Quarterly results |
| 01/21/2015 |
SC 13G/A
| BlackRock Inc. reports a 7.9% stake in CUBIST PHARMACEUTICALS INC |
| 01/21/2015 |
SC TO-T/A
| Form SC TO-T/A - Tender offer statement by Third Party: [Amend] |
| 01/15/2015 |
SC 13G/A
| BlackRock Inc. reports a 9.2% stake in CUBIST PHARMACEUTICALS INC |
| 01/15/2015 |
SC TO-T/A
| Form SC TO-T/A - Tender offer statement by Third Party: [Amend] |
| 01/14/2015 |
SC TO-T/A
| Form SC TO-T/A - Tender offer statement by Third Party: [Amend] |
| 01/13/2015 |
8-K
| Other Events, Financial Statements and Exhibits |
| 01/13/2015 |
SC TO-T/A
| Form SC TO-T/A - Tender offer statement by Third Party: [Amend] |
| 01/12/2015 |
SC 13G/A
| WELLINGTON MANAGEMENT GROUP LLP reports a 3% stake in Cubist Pharmaceuticals, Inc. |
| 01/12/2015 |
SC 13G/A
| PUTNAM INVESTMENTS LLC reports a 2.9% stake in CUBIST PHARMACEUTICALS INC |
| 01/07/2015 |
SC TO-T/A
| Form SC TO-T/A - Tender offer statement by Third Party: [Amend] |
| 01/02/2015 |
8-K
| Other Events, Financial Statements and Exhibits |
| 12/31/2014 |
SC TO-T/A
| Form SC TO-T/A - Tender offer statement by Third Party: [Amend] |
| 12/30/2014 |
SC TO-T/A
| Form SC TO-T/A - Tender offer statement by Third Party: [Amend] |
| 12/23/2014 |
SC TO-T/A
| Form SC TO-T/A - Tender offer statement by Third Party: [Amend] |
| 12/22/2014 |
SC 13D/A
| Merck & Co., Inc. has filed a Schedule 13D for CUBIST PHARMACEUTICALS, INC. |
| 12/22/2014 |
8-K
| Other Events, Financial Statements and Exhibits |
| 12/19/2014 |
8-K
| Temporary Suspension of Trading Under Registrant's Employee Benefit Plans, Financial Statements and Exhibits |
| 12/09/2014 |
8-K
| Other Events, Financial Statements and Exhibits |
| 12/08/2014 |
8-K
| Bonus plan approved/adopted |
| 11/07/2014 |
10-Q
| Quarterly Report for the period ended September 30, 2014 |
| 11/06/2014 |
8-K
| Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements... |
| 10/22/2014 |
8-K
| Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements... |
| 10/21/2014 |
8-K
| Quarterly results |
| 08/11/2014 |
8-K
| Other Events, Financial Statements and Exhibits |
| 08/11/2014 |
10-Q
| Quarterly Report for the period ended June 30, 2014 |
|