| BIIB | | BIOGEN IDEC INC. | Alfred Sandrock | Grp SVP, Chief Medical Officer | Dec 04, 2014 | Sale | $345.88 | 440 | 152,187 | 14,574 | Dec 05, 2014, 05:20 PM |
| BIIB | | BIOGEN IDEC INC. | Steven H. Holtzman | EVP Corporate Development | Dec 02, 2014 | Sale | $335.65 | 1,749 | 587,052 | 0 | Dec 03, 2014, 04:32 PM |
| BIIB | | BIOGEN IDEC INC. | Stephen A. Sherwin | Director | Dec 01, 2014 | Gift | - | 405 | - | 4,425 | Dec 03, 2014, 04:31 PM |
| BIIB | | BIOGEN IDEC INC. | Steven H. Holtzman | EVP Corporate Development | Nov 11, 2014 | Sale | $330.00 | 1,750 | 577,500 | 1,749 | Nov 12, 2014, 04:24 PM |
| BIIB | | BIOGEN IDEC INC. | George A. Scangos | Chief Executive Officer | Nov 03, 2014 | Sale | $320.78 | 1,128 | 361,840 | 17,985 | Nov 04, 2014, 04:18 PM |
| BIIB | | BIOGEN IDEC INC. | George A. Scangos | Chief Executive Officer | Oct 01, 2014 | Sale | $330.97 | 1,127 | 373,003 | 19,113 | Oct 02, 2014, 04:44 PM |
| BIIB | | BIOGEN IDEC INC. | Steven H. Holtzman | EVP Corporate Development | Oct 01, 2014 | Sale | $330.97 | 1,750 | 579,198 | 3,499 | Oct 02, 2014, 04:42 PM |
| BIIB | | BIOGEN IDEC INC. | Steven H. Holtzman | EVP Corporate Development | Sep 18, 2014 | Gift | - | 500 | - | 5,249 | Sep 22, 2014, 04:47 PM |
| BIIB | | BIOGEN IDEC INC. | George A. Scangos | Chief Executive Officer | Sep 02, 2014 | Sale | $345.47 | 1,128 | 389,690 | 20,240 | Sep 04, 2014, 04:15 PM |
| BIIB | | BIOGEN IDEC INC. | George A. Scangos | Chief Executive Officer | Aug 01, 2014 | Sale | $332.93 | 1,128 | 375,545 | 21,368 | Aug 04, 2014, 04:43 PM |
| BIIB | | BIOGEN IDEC INC. | Brian S. Posner | Director | Jul 24, 2014 | Gift | - | 300 | - | 5,700 | Jul 25, 2014, 12:26 PM |
| BIIB | | BIOGEN IDEC INC. | George A. Scangos | Chief Executive Officer | Jul 16, 2014 | Sale | $312.37 | 12,316 | 3,847,149 | 22,496 | Jul 18, 2014, 05:59 PM |
| BIIB | | BIOGEN IDEC INC. | George A. Scangos | Chief Executive Officer | Jul 15, 2014 | Tax Payment (Shares) | $312.00 | 10,062 | 3,139,344 | 34,812 | Jul 17, 2014, 04:45 PM |
| BIIB | | BIOGEN IDEC INC. | George A. Scangos | Chief Executive Officer | Jul 15, 2014 | Option/RSU Exercise | - | 21,339 | - | 44,874 | Jul 17, 2014, 04:45 PM |
| BIIB | | BIOGEN IDEC INC. | Brian S. Posner | Director | Jun 20, 2014 | Sale | $315.00 | 605 | 190,575 | 6,000 | Jun 23, 2014, 04:37 PM |
| BIIB | | BIOGEN IDEC INC. | Brian S. Posner | Director | Jun 13, 2014 | Sale | $310.50 | 700 | 217,350 | 6,605 | Jun 16, 2014, 04:37 PM |
| BIIB | | BIOGEN IDEC INC. | George A. Scangos | Chief Executive Officer | Jun 02, 2014 | Sale | $318.93 | 484 | 154,362 | 23,535 | Jun 03, 2014, 04:29 PM |
| BIIB | | BIOGEN IDEC INC. | Steven H. Holtzman | EVP Corporate Development | May 19, 2014 | Sale | $289.15 | 1,221 | 353,052 | 5,749 | May 20, 2014, 04:16 PM |
| BIIB | | BIOGEN IDEC INC. | George A. Scangos | Chief Executive Officer | May 01, 2014 | Sale | $285.56 | 2,123 | 606,241 | 25,656 | May 02, 2014, 04:22 PM |
| BIIB | | BIOGEN IDEC INC. | Gregory F. Covino | VP, Chief Accounting Officer | May 01, 2014 | Tax Payment (Shares) | $286.75 | 113 | 32,403 | 916 | May 02, 2014, 04:20 PM |
| BIIB | | BIOGEN IDEC INC. | Gregory F. Covino | VP, Chief Accounting Officer | May 01, 2014 | Option/RSU Exercise | $286.75 | 347 | 99,502 | 1,029 | May 02, 2014, 04:20 PM |
| BIIB | | BIOGEN IDEC INC. | Steven H. Holtzman | EVP Corporate Development | Apr 17, 2014 | Sale | $291.00 | 1,221 | 355,311 | 6,970 | Apr 21, 2014, 05:07 PM |
| BIIB | | BIOGEN IDEC INC. | Spyridon Artavanis-Tsakonas | SVP, Chief Scientific Officer | Apr 02, 2014 | Tax Payment (Shares) | $309.70 | 433 | 134,100 | 2,244 | Apr 03, 2014, 04:27 PM |
| BIIB | | BIOGEN IDEC INC. | Spyridon Artavanis-Tsakonas | SVP, Chief Scientific Officer | Apr 02, 2014 | Option/RSU Exercise | - | 975 | - | 2,677 | Apr 03, 2014, 04:27 PM |
| BIIB | | BIOGEN IDEC INC. | Robert W. Pangia | Director | Apr 01, 2014 | Option/RSU Exercise | $47.55 | 6,250 | 297,187 | 20,253 | Apr 02, 2014, 04:19 PM |
| BIIB | | BIOGEN IDEC INC. | Robert W. Pangia | Director | Apr 01, 2014 | Sale | $308.42 | 6,250 | 1,927,625 | 14,003 | Apr 02, 2014, 04:19 PM |
| BIIB | | BIOGEN IDEC INC. | George A. Scangos | Chief Executive Officer | Apr 01, 2014 | Sale | $308.42 | 2,123 | 654,776 | 26,142 | Apr 02, 2014, 04:16 PM |
| BIIB | | BIOGEN IDEC INC. | Brian S. Posner | Director | Mar 31, 2014 | Sale | $296.76 | 3,000 | 890,275 | 8,935 | Apr 01, 2014, 04:15 PM |
| BIIB | | BIOGEN IDEC INC. | Caroline Dorsa | Director | Mar 20, 2014 | Option/RSU Exercise | $53.64 | 10,000 | 536,400 | 24,468 | Mar 21, 2014, 04:17 PM |
| BIIB | | BIOGEN IDEC INC. | Caroline Dorsa | Director | Mar 20, 2014 | Sale | $348.88 | 10,000 | 3,488,812 | 22,268 | Mar 21, 2014, 04:17 PM |
| BIIB | | BIOGEN IDEC INC. | Douglas E. Williams | EVP Research & Development | Mar 19, 2014 | Sale | $352.29 | 3,505 | 1,234,776 | 9,886 | Mar 21, 2014, 04:15 PM |
| BIIB | | BIOGEN IDEC INC. | Steven H. Holtzman | EVP Corporate Development | Mar 17, 2014 | Sale | $334.83 | 1,221 | 408,827 | 8,191 | Mar 18, 2014, 05:08 PM |
| BIIB | | BIOGEN IDEC INC. | George A. Scangos | Chief Executive Officer | Mar 10, 2014 | Sale | $333.77 | 26,124 | 8,719,378 | 53,689 | Mar 12, 2014, 07:20 PM |
| BIIB | | BIOGEN IDEC INC. | Nancy Leaming | Director | Mar 10, 2014 | Sale | $327.65 | 2,000 | 655,300 | 7,660 | Mar 12, 2014, 07:16 PM |
| BIIB | | BIOGEN IDEC INC. | Stuart A. Kingsley | EVP, Global Comm. Operations | Mar 11, 2014 | Sale | $336.83 | 8,428 | 2,838,766 | 9,054 | Mar 12, 2014, 07:15 PM |
| BIIB | | BIOGEN IDEC INC. | Alfred Sandrock | Grp SVP, Chief Medical Officer | Mar 04, 2014 | Sale | $342.58 | 3,171 | 1,086,321 | 15,407 | Mar 05, 2014, 03:12 PM |
| BIIB | | BIOGEN IDEC INC. | Alfred Sandrock | Grp SVP, Chief Medical Officer | Mar 03, 2014 | Tax Payment (Shares) | $340.68 | 2,829 | 963,784 | 18,578 | Mar 04, 2014, 03:22 PM |
| BIIB | | BIOGEN IDEC INC. | George A. Scangos | Chief Executive Officer | Mar 03, 2014 | Sale | $335.79 | 2,942 | 987,894 | 56,368 | Mar 04, 2014, 03:19 PM |
| BIIB | | BIOGEN IDEC INC. | Alfred Sandrock | Grp SVP, Chief Medical Officer | Feb 26, 2014 | Sale | $342.17 | 1,048 | 358,594 | 21,407 | Feb 27, 2014, 04:19 PM |
| BIIB | | BIOGEN IDEC INC. | Alfred Sandrock | Grp SVP, Chief Medical Officer | Feb 23, 2014 | Tax Payment (Shares) | $347.11 | 940 | 326,283 | 22,455 | Feb 25, 2014, 02:21 PM |
| BIIB | | BIOGEN IDEC INC. | Alfred Sandrock | Grp SVP, Chief Medical Officer | Feb 23, 2014 | Option/RSU Exercise | - | 1,988 | - | 23,395 | Feb 25, 2014, 02:21 PM |
| BIIB | | BIOGEN IDEC INC. | John Cox | EVP Pharmaceutical Oper & Tech | Feb 23, 2014 | Tax Payment (Shares) | $347.11 | 1,228 | 426,251 | 25,478 | Feb 25, 2014, 02:17 PM |
| BIIB | | BIOGEN IDEC INC. | John Cox | EVP Pharmaceutical Oper & Tech | Feb 23, 2014 | Option/RSU Exercise | - | 2,598 | - | 26,706 | Feb 25, 2014, 02:17 PM |
| BIIB | | BIOGEN IDEC INC. | Paul J. Clancy | Executive VP and CFO | Feb 23, 2014 | Option/RSU Exercise | - | 4,280 | - | 17,473 | Feb 25, 2014, 02:11 PM |
| BIIB | | BIOGEN IDEC INC. | Paul J. Clancy | Executive VP and CFO | Feb 23, 2014 | Tax Payment (Shares) | $347.11 | 2,018 | 700,468 | 15,455 | Feb 25, 2014, 02:11 PM |
| BIIB | | BIOGEN IDEC INC. | Susan H. Alexander | EVP, Chief Legal Officer | Feb 23, 2014 | Tax Payment (Shares) | $347.11 | 1,803 | 625,839 | 22,127 | Feb 25, 2014, 02:07 PM |
| BIIB | | BIOGEN IDEC INC. | Susan H. Alexander | EVP, Chief Legal Officer | Feb 23, 2014 | Option/RSU Exercise | - | 3,821 | - | 23,930 | Feb 25, 2014, 02:07 PM |
| BIIB | | BIOGEN IDEC INC. | Steven H. Holtzman | EVP Corporate Development | Feb 18, 2014 | Sale | $327.90 | 1,222 | 400,694 | 9,412 | Feb 19, 2014, 04:23 PM |
| BIIB | | BIOGEN IDEC INC. | Douglas E. Williams | EVP Research & Development | Feb 12, 2014 | Tax Payment (Shares) | $323.04 | 1,685 | 544,322 | 11,481 | Feb 14, 2014, 04:48 PM |
| BIIB | | BIOGEN IDEC INC. | Douglas E. Williams | EVP Research & Development | Feb 12, 2014 | Option/RSU Exercise | - | 3,573 | - | 13,166 | Feb 14, 2014, 04:48 PM |
| BIIB | | BIOGEN IDEC INC. | Paul J. Clancy | Executive VP and CFO | Feb 12, 2014 | Tax Payment (Shares) | $323.04 | 1,324 | 427,705 | 13,193 | Feb 14, 2014, 04:46 PM |
| BIIB | | BIOGEN IDEC INC. | Paul J. Clancy | Executive VP and CFO | Feb 12, 2014 | Option/RSU Exercise | - | 2,807 | - | 14,517 | Feb 14, 2014, 04:46 PM |
| BIIB | | BIOGEN IDEC INC. | Spyridon Artavanis-Tsakonas | SVP, Chief Scientific Officer | Feb 12, 2014 | Tax Payment (Shares) | $323.04 | 239 | 77,207 | 1,702 | Feb 14, 2014, 04:45 PM |
| BIIB | | BIOGEN IDEC INC. | Spyridon Artavanis-Tsakonas | SVP, Chief Scientific Officer | Feb 12, 2014 | Option/RSU Exercise | - | 714 | - | 1,941 | Feb 14, 2014, 04:45 PM |
| BIIB | | BIOGEN IDEC INC. | Susan H. Alexander | EVP, Chief Legal Officer | Feb 12, 2014 | Option/RSU Exercise | - | 2,142 | - | 21,119 | Feb 14, 2014, 04:43 PM |
| BIIB | | BIOGEN IDEC INC. | Susan H. Alexander | EVP, Chief Legal Officer | Feb 12, 2014 | Tax Payment (Shares) | $323.04 | 1,010 | 326,270 | 20,109 | Feb 14, 2014, 04:43 PM |
| BIIB | | BIOGEN IDEC INC. | Alfred Sandrock | Grp SVP, Chief Medical Officer | Feb 12, 2014 | Tax Payment (Shares) | $323.04 | 367 | 118,556 | 14,092 | Feb 14, 2014, 04:42 PM |
| BIIB | | BIOGEN IDEC INC. | Alfred Sandrock | Grp SVP, Chief Medical Officer | Feb 12, 2014 | Option/RSU Exercise | - | 792 | - | 14,459 | Feb 14, 2014, 04:42 PM |
| BIIB | | BIOGEN IDEC INC. | Alfred Sandrock | Grp SVP, Chief Medical Officer | Feb 13, 2014 | Sale | $316.42 | 425 | 134,478 | 21,407 | Feb 14, 2014, 04:42 PM |
| BIIB | | BIOGEN IDEC INC. | Steven H. Holtzman | EVP Corporate Development | Feb 12, 2014 | Tax Payment (Shares) | $323.04 | 1,010 | 326,270 | 10,634 | Feb 14, 2014, 04:39 PM |
| BIIB | | BIOGEN IDEC INC. | Steven H. Holtzman | EVP Corporate Development | Feb 12, 2014 | Option/RSU Exercise | - | 2,142 | - | 11,644 | Feb 14, 2014, 04:39 PM |
| BIIB | | BIOGEN IDEC INC. | Gregory F. Covino | VP, Chief Accounting Officer | Feb 12, 2014 | Tax Payment (Shares) | $323.04 | 8 | 2,584 | 682 | Feb 14, 2014, 04:38 PM |
| BIIB | | BIOGEN IDEC INC. | Gregory F. Covino | VP, Chief Accounting Officer | Feb 12, 2014 | Option/RSU Exercise | - | 315 | - | 690 | Feb 14, 2014, 04:38 PM |
| BIIB | | BIOGEN IDEC INC. | George A. Scangos | Chief Executive Officer | Feb 12, 2014 | Tax Payment (Shares) | $323.04 | 4,333 | 1,399,732 | 57,817 | Feb 14, 2014, 04:37 PM |
| BIIB | | BIOGEN IDEC INC. | George A. Scangos | Chief Executive Officer | Feb 12, 2014 | Option/RSU Exercise | - | 9,189 | - | 62,150 | Feb 14, 2014, 04:37 PM |
| BIIB | | BIOGEN IDEC INC. | George A. Scangos | Chief Executive Officer | Feb 13, 2014 | Sale | $316.81 | 486 | 153,970 | 57,331 | Feb 14, 2014, 04:37 PM |
| BIIB | | BIOGEN IDEC INC. | Kenneth Dipietro | EVP Human Resources | Feb 12, 2014 | Tax Payment (Shares) | $323.04 | 956 | 308,826 | 1,290 | Feb 14, 2014, 04:36 PM |
| BIIB | | BIOGEN IDEC INC. | Kenneth Dipietro | EVP Human Resources | Feb 12, 2014 | Option/RSU Exercise | - | 2,246 | - | 2,246 | Feb 14, 2014, 04:36 PM |
| BIIB | | BIOGEN IDEC INC. | Kenneth Dipietro | EVP Human Resources | Feb 13, 2014 | Sale | $316.81 | 1,290 | 408,685 | 0 | Feb 14, 2014, 04:36 PM |
| BIIB | | BIOGEN IDEC INC. | John Cox | EVP Pharmaceutical Oper & Tech | Feb 12, 2014 | Tax Payment (Shares) | $323.04 | 1,059 | 342,099 | 24,108 | Feb 14, 2014, 04:34 PM |
| BIIB | | BIOGEN IDEC INC. | John Cox | EVP Pharmaceutical Oper & Tech | Feb 12, 2014 | Option/RSU Exercise | - | 2,246 | - | 25,167 | Feb 14, 2014, 04:34 PM |
| BIIB | | BIOGEN IDEC INC. | Alfred Sandrock | Grp SVP, Chief Medical Officer | Feb 11, 2014 | Sale | $314.31 | 2,085 | 655,336 | 14,522 | Feb 12, 2014, 05:03 PM |
| BIIB | | BIOGEN IDEC INC. | George A. Scangos | Chief Executive Officer | Feb 11, 2014 | Sale | $314.31 | 2,456 | 771,945 | 54,454 | Feb 12, 2014, 05:00 PM |
| BIIB | | BIOGEN IDEC INC. | George A. Scangos | Chief Executive Officer | Feb 10, 2014 | Option/RSU Exercise | - | 18,833 | - | 64,297 | Feb 11, 2014, 07:55 PM |
| BIIB | | BIOGEN IDEC INC. | George A. Scangos | Chief Executive Officer | Feb 09, 2014 | Tax Payment (Shares) | $315.54 | 4,850 | 1,530,369 | 45,464 | Feb 11, 2014, 07:55 PM |
| BIIB | | BIOGEN IDEC INC. | George A. Scangos | Chief Executive Officer | Feb 09, 2014 | Option/RSU Exercise | - | 11,270 | - | 50,314 | Feb 11, 2014, 07:55 PM |
| BIIB | | BIOGEN IDEC INC. | George A. Scangos | Chief Executive Officer | Feb 10, 2014 | Tax Payment (Shares) | $315.54 | 8,880 | 2,801,995 | 55,417 | Feb 11, 2014, 07:55 PM |
| BIIB | | BIOGEN IDEC INC. | Stuart A. Kingsley | EVP, Global Comm. Operations | Feb 08, 2014 | Option/RSU Exercise | - | 2,636 | - | 11,032 | Feb 11, 2014, 07:52 PM |
| BIIB | | BIOGEN IDEC INC. | Stuart A. Kingsley | EVP, Global Comm. Operations | Feb 09, 2014 | Tax Payment (Shares) | $315.54 | 861 | 271,680 | 10,752 | Feb 11, 2014, 07:52 PM |
| BIIB | | BIOGEN IDEC INC. | Stuart A. Kingsley | EVP, Global Comm. Operations | Feb 09, 2014 | Option/RSU Exercise | - | 1,824 | - | 11,613 | Feb 11, 2014, 07:52 PM |
| BIIB | | BIOGEN IDEC INC. | Stuart A. Kingsley | EVP, Global Comm. Operations | Feb 08, 2014 | Tax Payment (Shares) | $315.54 | 1,243 | 392,216 | 9,789 | Feb 11, 2014, 07:52 PM |
| BIIB | | BIOGEN IDEC INC. | Paul J. Clancy | Executive VP and CFO | Feb 08, 2014 | Tax Payment (Shares) | $315.54 | 1,047 | 330,370 | 9,231 | Feb 11, 2014, 07:49 PM |
| BIIB | | BIOGEN IDEC INC. | Paul J. Clancy | Executive VP and CFO | Feb 08, 2014 | Option/RSU Exercise | - | 3,191 | - | 10,278 | Feb 11, 2014, 07:49 PM |
| BIIB | | BIOGEN IDEC INC. | Paul J. Clancy | Executive VP and CFO | Feb 09, 2014 | Tax Payment (Shares) | $315.54 | 2,212 | 697,974 | 11,710 | Feb 11, 2014, 07:49 PM |
| BIIB | | BIOGEN IDEC INC. | Paul J. Clancy | Executive VP and CFO | Feb 09, 2014 | Option/RSU Exercise | - | 4,691 | - | 13,922 | Feb 11, 2014, 07:49 PM |
| BIIB | | BIOGEN IDEC INC. | Douglas E. Williams | EVP Research & Development | Feb 08, 2014 | Tax Payment (Shares) | $315.54 | 1,636 | 516,223 | 9,593 | Feb 11, 2014, 07:47 PM |
| BIIB | | BIOGEN IDEC INC. | Douglas E. Williams | EVP Research & Development | Feb 08, 2014 | Option/RSU Exercise | - | 3,468 | - | 11,229 | Feb 11, 2014, 07:47 PM |
| BIIB | | BIOGEN IDEC INC. | Steven H. Holtzman | EVP Corporate Development | Feb 08, 2014 | Tax Payment (Shares) | $315.54 | 1,276 | 402,629 | 9,502 | Feb 11, 2014, 07:45 PM |
| BIIB | | BIOGEN IDEC INC. | Steven H. Holtzman | EVP Corporate Development | Feb 08, 2014 | Option/RSU Exercise | - | 2,705 | - | 10,778 | Feb 11, 2014, 07:45 PM |
| BIIB | | BIOGEN IDEC INC. | Alfred Sandrock | Grp SVP, Chief Medical Officer | Feb 09, 2014 | Option/RSU Exercise | - | 1,824 | - | 16,346 | Feb 11, 2014, 07:43 PM |
| BIIB | | BIOGEN IDEC INC. | Alfred Sandrock | Grp SVP, Chief Medical Officer | Feb 08, 2014 | Tax Payment (Shares) | $315.54 | 422 | 133,158 | 14,522 | Feb 11, 2014, 07:43 PM |
| BIIB | | BIOGEN IDEC INC. | Alfred Sandrock | Grp SVP, Chief Medical Officer | Feb 08, 2014 | Option/RSU Exercise | - | 1,277 | - | 14,944 | Feb 11, 2014, 07:43 PM |
| BIIB | | BIOGEN IDEC INC. | Alfred Sandrock | Grp SVP, Chief Medical Officer | Feb 09, 2014 | Tax Payment (Shares) | $315.54 | 594 | 187,431 | 15,752 | Feb 11, 2014, 07:43 PM |
| BIIB | | BIOGEN IDEC INC. | Susan H. Alexander | EVP, Chief Legal Officer | Feb 08, 2014 | Tax Payment (Shares) | $315.54 | 819 | 258,427 | 16,814 | Feb 11, 2014, 06:07 PM |
| BIIB | | BIOGEN IDEC INC. | Susan H. Alexander | EVP, Chief Legal Officer | Feb 08, 2014 | Option/RSU Exercise | - | 2,498 | - | 17,633 | Feb 11, 2014, 06:07 PM |
| BIIB | | BIOGEN IDEC INC. | Susan H. Alexander | EVP, Chief Legal Officer | Feb 09, 2014 | Tax Payment (Shares) | $315.54 | 1,746 | 550,933 | 18,977 | Feb 11, 2014, 06:07 PM |
| BIIB | | BIOGEN IDEC INC. | Susan H. Alexander | EVP, Chief Legal Officer | Feb 09, 2014 | Option/RSU Exercise | - | 3,909 | - | 20,723 | Feb 11, 2014, 06:07 PM |
| BIIB | | BIOGEN IDEC INC. | John Cox | EVP Pharmaceutical Oper & Tech | Feb 09, 2014 | Option/RSU Exercise | - | 4,691 | - | 25,133 | Feb 11, 2014, 06:07 PM |
| BIIB | | BIOGEN IDEC INC. | John Cox | EVP Pharmaceutical Oper & Tech | Feb 08, 2014 | Tax Payment (Shares) | $315.54 | 1,441 | 454,693 | 20,442 | Feb 11, 2014, 06:07 PM |
| BIIB | | BIOGEN IDEC INC. | John Cox | EVP Pharmaceutical Oper & Tech | Feb 08, 2014 | Option/RSU Exercise | - | 4,023 | - | 21,883 | Feb 11, 2014, 06:07 PM |
