Animal testing lab hit as last broker quits (adds comment from Huntingdon, broker, LSE, share price) By Sonya Dowsett LONDON, March 28 (Reuters) - Animal rights activists claimed another victory over Huntingdon Life Sciences (LSE: HTD.L - news) on Wednesday when the drug testing firm's last remaining market maker said it would no longer deal in its shares. Dresdner Kleinwort Wasserstein's decision was a natural result of its policy not to act as sole market maker for any stock, a spokeswoman for the broker told Reuters, and followed the withdrawal of marketmaker Winterflood on Tuesday. Huntingdon said Dresdner's decision was "understandable". Its shares were 36 percent down at four pence at 1130 GMT, valuing the firm at around 11 million pounds ($15.74 million). Huntingdon stock have lost four-fifths of their value over the past two years as financial backers and customers walked away under pressure from animal rights campaigners aiming to drive the UK's oldest drugs testing laboratory out of business. Under London Stock Exchange requirements, Huntingdon has 10 days in which to find another two market makers or its shares will drop from the SEAQ trading platform, which matches the bid and ask through market makers, to the SEATS plus platform. This is reserved for smaller companies in the junior AIM alternative investment market. ANIMAL RIGHTS ACTIVISTS Winterflood bowed out as a market maker for Huntingdon, which uses animals for drugs testing, following demonstrations by animal rights activists at the homes of director Ian Throssell and chairman Brian Winterflood. Although DKW had not yet been targeted by the campaigners, a spokesman for animal rights group Stop Huntingdon Animal Cruelty said the broker would have been next in line. "They can see that if Winterflood goes, they step into the frame," said Greg Avery, press spokesman for the group. A spokesman for Huntingdon told Reuters it was "saddening and disappointing" that business decisions in the UK could be influenced by "terrorists". Huntingdon stressed that it was still listed on the London Stock Exchange with an effective trading platform for routine dealing. The company came close to bankruptcy last year and struggled to find financial backers when several major investors sold their stakes and bankers withdrew support over fears of fire-bomb attacks and death threats to employees. Last week, Huntingdon reported an annual loss of 10.9 million pounds, nearly twice those of 1999.