| SC 13G/A | 2004-02-10 | ROYCE & ASSOCIATES LLC | QUAKER CHEMICAL CORP | 969,600 | 10.1% | EDGAR |
| SC 13G/A | 2004-02-05 | ROYCE & ASSOCIATES LLC | QUAKER CHEMICAL CORP | 940,100 | 9.8% | EDGAR |
| SC 13G | 2004-02-04 | DEPRINCE RACE & ZOLLO INC | QUAKER CHEMICAL CORP | 488,750 | 5.1% | EDGAR |
| SC 13G/A | 2003-04-01 | ROYCE & ASSOCIATES LLC | QUAKER CHEMICAL CORP | 648,500 | 7.0% | EDGAR |
| SC 13G/A | 2003-02-10 | NAPLES RONALD J | QUAKER CHEMICAL CORP | 746,041 | 7.6% | EDGAR |
| SC 13G | 2003-02-07 | DEPRINCE RACE & ZOLLO INC | QUAKER CHEMICAL CORP | 601,250 | 6.4% | EDGAR |
| SC 13G/A | 2003-02-05 | ROYCE & ASSOCIATES LLC | QUAKER CHEMICAL CORP | 625,500 | 6.7% | EDGAR |
| SC 13G | 2002-02-11 | DEPRINCE RACE & ZOLLO INC | QUAKER CHEMICAL CORP | 9 | 11.0% | EDGAR |
| SC 13G/A | 2002-02-08 | ROYCE & ASSOCIATES INC /NY | QUAKER CHEMICAL CORP | 505,300 | 5.5% | EDGAR |
| SC 13G/A | 2002-02-08 | NAPLES RONALD J | QUAKER CHEMICAL CORP | 658,573 | 6.9% | EDGAR |
| SC 13G/A | 2002-02-06 | BENOLIEL PETER A | QUAKER CHEMICAL CORP | 428,115 | 4.7% | EDGAR |
| SC 13G | 2001-02-14 | DEPRINCE RACE & ZOLLO INC | QUAKER CHEMICAL CORP | 9 | 11.0% | EDGAR |
| SC 13G/A | 2001-02-12 | BENOLIEL PETER A | QUAKER CHEMICAL CORP | 458,980 | 5.2% | EDGAR |
| SC 13G | 2001-02-12 | INVESTMENT COUNSELORS OF MARYLAND INC | QUAKER CHEMICAL CORP | 392,000 | 4.4% | EDGAR |
| SC 13G | 2001-02-12 | NAPLES RONALD J | QUAKER CHEMICAL CORP | 499,511 | 5.4% | EDGAR |
| SC 13G | 2000-02-14 | DEPRINCE RACE & ZOLLO INC | QUAKER CHEMICAL CORP | - | 6.6% | EDGAR |
| SC 13G | 2000-02-14 | DEPRINCE RACE & ZOLLO INC | QUAKER CHEMICAL CORP | - | 6.6% | EDGAR |
| SC 13G | 2000-02-14 | DEPRINCE RACE & ZOLLO INC | QUAKER CHEMICAL CORP | - | 6.6% | EDGAR |
| SC 13G | 2000-02-10 | INVESTMENT COUNSELORS OF MARYLAND INC | QUAKER CHEMICAL CORP | 460,000 | 5.2% | EDGAR |
| SC 13G | 2000-02-10 | INVESTMENT COUNSELORS OF MARYLAND INC | QUAKER CHEMICAL CORP | 460,000 | 5.2% | EDGAR |