| SC 13G/A | 2018-02-14 | RENAISSANCE TECHNOLOGIES LLC | Information Services Group Inc. | 1,903,811 | 4.4% | EDGAR |
| SC 13G/A | 2018-02-14 | CONNORS MICHAEL P | Information Services Group Inc. | 3,586,978 | 8.3% | EDGAR |
| SC 13G/A | 2018-02-12 | THOMSON HORSTMANN & BRYANT INC | Information Services Group Inc. | 1,721,466 | 4.0% | EDGAR |
| SC 13G | 2017-02-14 | RENAISSANCE TECHNOLOGIES LLC | Information Services Group Inc. | 1,895,390 | 5.3% | EDGAR |
| SC 13G/A | 2017-02-13 | VANGUARD EXPLORER FUND | Information Services Group Inc. | 10 | 0.0% | EDGAR |
| SC 13G/A | 2017-02-10 | CHARTWELL INVESTMENT PARTNERS, LLC | Information Services Group Inc. | 777,683 | 2.2% | EDGAR |
| SC 13G/A | 2017-02-09 | Gumienny Marek | Information Services Group Inc. | 1,812,416 | 4.3% | EDGAR |
| SC 13G/A | 2017-02-07 | CONNORS MICHAEL P | Information Services Group Inc. | 3,380,494 | 8.0% | EDGAR |
| SC 13G/A | 2017-01-10 | THOMSON HORSTMANN & BRYANT INC | Information Services Group Inc. | 1,945,397 | 5.4% | EDGAR |
| SC 13G | 2016-12-20 | LLR EQUITY PARTNERS III LP | Information Services Group Inc. | 2,306,418 | - | EDGAR |
| SC 13G/A | 2016-12-06 | Chevrillon & Associes | Information Services Group Inc. | 5,687,495 | 13.6% | EDGAR |
| SC 13G/A | 2016-05-12 | CHARTWELL INVESTMENT PARTNERS, LLC | Information Services Group Inc. | 3,716,808 | 10.5% | EDGAR |
| SC 13G | 2016-02-09 | VANGUARD EXPLORER FUND | Information Services Group Inc. | 2,022,107 | 5.4% | EDGAR |
| SC 13G/A | 2016-02-08 | Gumienny Marek | Information Services Group Inc. | 2,653,136 | 7.1% | EDGAR |
| SC 13G/A | 2016-02-03 | CONNORS MICHAEL P | Information Services Group Inc. | 3,262,368 | 8.8% | EDGAR |
| SC 13G | 2016-01-20 | THOMSON HORSTMANN & BRYANT INC | Information Services Group Inc. | 2,101,567 | 5.6% | EDGAR |
| SC 13G/A | 2016-01-19 | Chevrillon & Associes | Information Services Group Inc. | 2,687,495 | 7.2% | EDGAR |
| SC 13G/A | 2016-01-05 | CHARTWELL INVESTMENT PARTNERS, LLC | Information Services Group Inc. | 3,290,312 | 8.9% | EDGAR |
| SC 13G | 2015-04-21 | CHARTWELL INVESTMENT PARTNERS, INC. | Information Services Group Inc. | 2,158,677 | 5.9% | EDGAR |
| SC 13G/A | 2015-02-12 | CONNORS MICHAEL P | Information Services Group Inc. | 3,297,031 | 9.0% | EDGAR |