HARVARD BIOSCIENCE INC — Director's Dealing 2007

Nov 19, 2007

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: HARVARD BIOSCIENCE INC (HBIO)
CIK: 0001123494
Period of Report: 2007-11-15

Reporting Person: HSO LIMITED PARTNERSHIP (10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2007-11-15	Common Stock	P	7198	$3.8171	Acquired	3450328	Direct
2007-11-15	Common Stock	P	11180	$3.7985	Acquired	3461508	Direct
2007-11-16	Common Stock	P	6120	$3.8999	Acquired	3467628	Direct
2007-11-16	Common Stock	P	7612	$3.8988	Acquired	3475240	Direct
2007-11-16	Common Stock	P	4567	$3.9063	Acquired	3479807	Direct
2007-11-19	Common Stock	P	5043	$3.741	Acquired	3484850	Direct

Footnotes

F1: The reporting person's purchase of HBIO common stock reported herein was matchable under Section 16(b) of the Securities
Exchange Act of 1934, as amended, to the extent of 100 shares, with the reporting person's sale of 100 shares of HBIO common
stock on September 25, 2007 (the "Sale"). The reporting person has agreed to pay to HBIO the full amount of the profit
realized in connection with the short-swing transactions, less transaction costs, and less amounts previously paid to HBIO
by the reporting person in connection with the Sale and a previously disclosed transaction matchable against the Sale.