Updated from 1:23 p.m. EDT

Shares of

Blue Nile

(NILE)

were among the worst-performing technology stocks Tuesday, falling 11.9% after several executives filed prearranged trading plans with the

Securities and Exchange Commission

.

CEO Mark Vardon, CFO Diane Irvine and COO Robert Paquin will each sell, according to the SEC filing, less than 10% of their overall holdings during the next year. The online jewelry retailer also said that other officers and directors have or may adopt 10b5-1 selling plans on a periodic basis as well. Sales are currently subject to the 180-day lock-up agreement that officers and directors entered into as part of the company's May 20 initial public offering. As a result, no sales under the trading plans can be executed until the expiration of the lock-up period. The company's stock has climbed about 27% since going public in May. Shares traded down $3.51 to $25.99.

NetWolves

(WOLV)

rose 67.5% on big volume after the company posted a first-quarter profit on an 18% jump in sales. The network security provider posted a profit of $14,365 on sales of $7.1 million. A year ago the company posted a loss of $924,399 on sales of $6 million. First-quarter results marked the second straight quarter of profitability for the company. Shares traded up 54 cents to $1.34 on volume of almost 17 million shares, or more than 100 times its average daily trading volume.

Shares of

Tessera Technologies

(TSRA)

rose 18.2% after the company agreed to settle a lawsuit with

Samsung Electronics

. By signing the memorandum of understanding with Samsung, the semiconductor packaging company agreed to settle the ongoing lawsuit between the two companies. Specific terms of the agreement were not disclosed. Shares of Tessera traded up $5.94 to $38.64.

Applied Digital

( ADSX) rose 7.9% after the company received its first commercial order from Japan. Japan-based Dainippon Pharmaceutical, the exclusive Japanese distributor of Applied Digital's Bio-Thermo microchip, placed an order for 25,000 chips, which will be used in the Japanese pet market. The chips will be delivered during the first quarter of 2005. Applied Digital said the subdermal biosensor chips would initially be sold to veterinarian clinics in Japan, where they'll be used to measure a pet's body temperature. Shares traded up 34 cents to $4.64.

Shares of

InPhonics

( INPC) soared 26.3% on its first day of trading as a public company. The wireless services company priced 7.5 million shares at $19 apiece, raising about $109 million in net proceeds. Deutsche Bank Securities and JP Morgan Securities led the underwriting syndicate. Shares traded up $5 to $24.

Other technology volume leaders included

Sirius Satellite Radio

(SIRI) - Get Report

, up 26 cents to $4.71;

Microsoft

(MSFT) - Get Report

, down 27 cents to $27.12;

Lucent

( LU), down 22 cents to $3.83;

Intel

(INTC) - Get Report

, up 7 cents to $23.84;

Cisco

(CSCO) - Get Report

, down 17 cents to $19.38;

Sun Microsystems

(SUNW) - Get Report

, down 13 cents to $4.96; and

PeopleSoft

(PSFT)

, up 20 cents to $22.74.