HARVARD BIOSCIENCE INC — Director's Dealing 2007

Aug 2, 2007

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: HARVARD BIOSCIENCE INC (HBIO)
CIK: 0001123494
Period of Report: 2007-07-31

Reporting Person: Skystone Advisors LLC (10% Owner)
Reporting Person: Nelson Kerry (10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2007-07-31	Common Stock	P	2606	$4.9672	Acquired	4501022	Indirect
2007-08-01	Common Stock	P	2585	$4.9387	Acquired	4503607	Indirect

Footnotes

F1: Shares reported herein represent shares held by HSO Limited Partnership and HSE Master Fund Limited Partnership. Skystone
Advisors LLC is the investment member of the general partner of HSO Limited Partnership and the general partner of HSE
Master Fund Limited Partnership. Ms. Nelson is the managing member of Skystone Advisors LLC. Each of Ms. Nelson and Skystone
Advisors LLC disclaims beneficial ownership of the shares reported herein, except to the extent of its or her pecuniary
interest therein, and the inclusion of the shares reported herein shall not be deemed an admission of beneficial ownership
of such shares for purposes of Section 16 or for any other purpose.