| SC 13G/A | 2014-01-28 | SABBY MANAGEMENT, LLC | AGENUS INC | 550,100 | 1.6% | EDGAR |
| SC 13G | 2013-09-23 | SABBY MANAGEMENT, LLC | AGENUS INC | 1,733,333 | 5.1% | EDGAR |
| SC 13G/A | 2013-07-10 | BlackRock Inc. | AGENUS INC | 789,996 | 2.8% | EDGAR |
| SC 13G | 2013-04-18 | INGALLS & SNYDER LLC | AGENUS INC | 2,116,034 | 7.6% | EDGAR |
| SC 13G | 2013-04-18 | INGALLS & SNYDER VALUE PARTNERS L P | AGENUS INC | 2,000,000 | 7.2% | EDGAR |
| SC 13G | 2013-02-14 | FMR LLC | AGENUS INC | 2,159,514 | 8.1% | EDGAR |
| SC 13G | 2013-02-12 | FEINBERG LARRY N | AGENUS INC | 1,352,205 | 5.4% | EDGAR |
| SC 13G | 2013-01-30 | BlackRock Inc. | AGENUS INC | 1,658,127 | 6.7% | EDGAR |
| SC 13G/A | 2012-03-20 | INGALLS & SNYDER LLC | AGENUS INC | 1,001,422 | 4.4% | EDGAR |
| SC 13G/A | 2012-02-13 | Invus Public Equities, LP | AGENUS INC | 4,546,079 | 4.9% | EDGAR |
| SC 13G/A | 2012-02-07 | INGALLS & SNYDER VALUE PARTNERS L P | AGENUS INC | 1,070,019 | 5.0% | EDGAR |
| SC 13G/A | 2012-02-07 | INGALLS & SNYDER LLC | AGENUS INC | 1,282,517 | 6.0% | EDGAR |
| SC 13G/A | 2011-02-24 | INGALLS & SNYDER LLC | AGENUS INC | 8,021,601 | 7.1% | EDGAR |
| SC 13G/A | 2011-02-24 | INGALLS & SNYDER VALUE PARTNERS L P | AGENUS INC | 6,746,601 | 6.0% | EDGAR |
| SC 13G/A | 2011-02-11 | INGALLS & SNYDER VALUE PARTNERS L P | AGENUS INC | 11,664,001 | 10.0% | EDGAR |
| SC 13G/A | 2011-02-10 | INGALLS & SNYDER LLC | AGENUS INC | 11,619,672 | 10.0% | EDGAR |
| SC 13G/A | 2010-11-29 | INGALLS & SNYDER VALUE PARTNERS L P | ANTIGENICS INC /DE/ | 10,385,112 | 9.4% | EDGAR |
| SC 13G/A | 2010-06-10 | FMR LLC | ANTIGENICS INC /DE/ | 2,446,500 | 2.5% | EDGAR |
| SC 13G/A | 2010-02-16 | FMR LLC | ANTIGENICS INC /DE/ | 7,275,800 | 7.6% | EDGAR |
| SC 13G/A | 2010-02-16 | FLETCHER ASSET MANAGEMENT INC | ANTIGENICS INC /DE/ | 100,000 | 0.1% | EDGAR |