Peregrine Systems Inc

Peregrine Systems Inc. shares tumbled 37% on concern that the business-software maker's planned $2.1-billion acquisition of Harbinger Corp. could slow its growth. The shares plunged $21.25 to close at $36.75 in Nasdaq trading, chopping the transaction value to about $1.3 billion. San Diego-based Peregrine said Wednesday it agreed to swap 0.75 share for each Harbinger share. Shares of Atlanta-based Harbinger, an electronic-commerce software provider, rose $2.44 to close at $26.56, also on Nasdaq.

Just say "Palm" and see what happens. That may be what more tech companies will be thinking after San Diego-based Peregrine Systems (ticker symbol: PRGN) saw its shares soar $15.25 to a record $69.88 on Wednesday. The trigger: Peregrine, which makes software for computer-system help desks, announced that its ServiceCenter software will run on the Palm system.

Software makers Peregrine Systems Inc. and GoldMine Software Corp. announced a partnership to jointly market their products. As part of the deal, San Diego-based Peregrine will buy a 10% stake in GoldMine for $82.7 million, giving the privately held company a market value in excess of $800 million. Both companies make software to help companies keep track of business contacts, customer services, and other company information.

El Segundo-based Kilroy Realty Corp. has signed Peregrine Systems Inc. to a $175-million, 12-year agreement that Kilroy says is the largest single office lease in the history of San Diego County.

Peregrine Systems Inc., a San Diego software manufacturer, plans to sell 3 million common shares through an initial public offering. The company will offer the common stock at $10 to $12 a share, according to a registration statement filed with the Securities and Exchange Commission. The stock sale will include 2 million shares that Peregrine plans to issue and 1 million shares that existing investors plan to sell.