| Type | Filed | Filer | Subject | Shares Owned | Percent Owned | |
|---|---|---|---|---|---|---|
| SC 13G | 2014-02-14 | GRANAHAN INVESTMENT MANAGEMENT INC/MA | HARVARD BIOSCIENCE INC | 1,723,960 | 5.6% | EDGAR |
| SC 13G/A | 2014-02-13 | GRAZIANO CHANE | HARVARD BIOSCIENCE INC | 3,005,150 | 9.7% | EDGAR |
| SC 13G/A | 2014-02-12 | GREEN DAVID | HARVARD BIOSCIENCE INC | 3,083,989 | 9.5% | EDGAR |
| SC 13G/A | 2014-02-10 | F&C Asset Management plc | HARVARD BIOSCIENCE INC | 1,197,213 | 3.9% | EDGAR |
| SC 13G/A | 2014-01-29 | BlackRock Inc. | HARVARD BIOSCIENCE INC | 2,679,805 | 8.6% | EDGAR |
| SC 13G/A | 2013-08-12 | FMR LLC | HARVARD BIOSCIENCE INC | 506,106 | 1.7% | EDGAR |
| SC 13G/A | 2013-06-07 | BlackRock Inc. | HARVARD BIOSCIENCE INC | 3,039,180 | 10.1% | EDGAR |
| SC 13G/A | 2013-02-14 | FMR LLC | HARVARD BIOSCIENCE INC | 1,955,947 | 6.8% | EDGAR |
| SC 13G/A | 2013-02-14 | GREEN DAVID | HARVARD BIOSCIENCE INC | 2,911,339 | 9.4% | EDGAR |
| SC 13G/A | 2013-02-14 | GRAZIANO CHANE | HARVARD BIOSCIENCE INC | 4,360,904 | 13.9% | EDGAR |
| SC 13G/A | 2013-02-14 | Central Square Management, LLC | HARVARD BIOSCIENCE INC | - | - | EDGAR |
| SC 13G/A | 2013-02-08 | BlackRock Inc. | HARVARD BIOSCIENCE INC | 1,694,000 | 5.9% | EDGAR |
| SC 13G/A | 2013-01-29 | F&C Asset Management plc | HARVARD BIOSCIENCE INC | 1,567,228 | 5.4% | EDGAR |
| SC 13G/A | 2012-02-14 | FMR LLC | HARVARD BIOSCIENCE INC | 1,909,207 | 6.7% | EDGAR |
| SC 13G/A | 2012-02-14 | Central Square Management, LLC | HARVARD BIOSCIENCE INC | - | - | EDGAR |
| SC 13G/A | 2012-02-14 | GREEN DAVID | HARVARD BIOSCIENCE INC | 3,061,915 | 10.1% | EDGAR |
| SC 13G/A | 2012-02-14 | GRAZIANO CHANE | HARVARD BIOSCIENCE INC | 4,310,641 | 14.1% | EDGAR |
| SC 13G | 2012-02-14 | DIMENSIONAL FUND ADVISORS LP | HARVARD BIOSCIENCE INC | 1,438,531 | 5.0% | EDGAR |
| SC 13G | 2012-02-09 | BlackRock Inc. | HARVARD BIOSCIENCE INC | 1,586,075 | 5.6% | EDGAR |
| SC 13G/A | 2012-01-19 | F&C Asset Management plc | HARVARD BIOSCIENCE INC | 1,374,528 | 4.8% | EDGAR |