NEW YORK ( TheStreet) -- Shares of Hewlett-Packard ( HPQ) tacked on a few pennies in Monday's extended session after the computer and printer maker named longtime executive Ann Livermore to its board, and said the heads of three of its customer-facing units would now report directly to CEO Leo Apotheker.

HP said Dave Donatelli, executive vice president of its Enterprise Servers, Storage, Networking and Technology Services unit; Bill Veghte, executive vice president of its Software unit, and Jan Zadak, executive vice president of Global Sales will all be counted among Apotheker's direct reports.



The stock was last quoted at $34.69, up 4 cents, on volume of around 92,000, according to Nasdaq.com. Based on a regular session close of $34.65, the shares are down 16% so far in 2011.

Livermore has been with HP for nearly 30 years, and will step away from her current position in charge of the company's Enterprise Business unit. She will continue to fill the role on an interim basis, and sponsor certain key accounts until a replacement is named.

"Ann's distinguished role as a leader of our largest business, deep relationships with our most important customers, institutional knowledge of the company and its employees, and insights on the technology industry will be tremendous assets to our board of directors," said Ray Lane, the board's non-executive chairman, in a press release. "On behalf of HP's 320,000-plus employees, I would like to congratulate Ann on her election and offer our heart-felt gratitude for her long service and dedication to this company."

HP also said it streamlining its administrative operations on Monday, eliminating the chief administration officer role and expanding the chief information officer's duties. Both Pete Bocian, the chief administration officer, and Randy Mott, the chief information officer, are leaving the company, and HP will search for a new chief information officer.

Although it topped Wall Street's consensus earnings estimate when reporting its first-quarter results on April 18, HP fell short on revenue, underlining the difficulties it's had in growing its top line in the past year. The company's total of $19.73 billion for the three months ended in March was a sequential improvement but still well below revenue of $25.42 billion in the year-ago equivalent period.

SIGA Technologies

Shares of SIGA Technologies ( SIGA) fell in late trades following a report that Congress plans to investigate the company's recent receipt of a government contract worth up to $2.8 billion.

CNBC said the House Oversight and Government Reform Committee is looking into whether the political connections of financier Ron Perelman were a factor in SIGA receiving the no-bid contract, as Perelman's MacAndrews & Forbes Holdings investment business owns a 26% stake in SIGA, according to Thomson Reuters data.

SIGA was awarded the contract in question by the Biomedical Advanced Research and Development Authority on May 13. Its initial five-year base award is worth $433 million and calls for the company to produce two million courses of its smallpox antiviral, ST-246.

SIGA shares were last quoted at $11.49, down 5%, on volume of nearly 130,000, according to Nasdaq.com. Based on a regular session close at $12.10, the stock was up 90% in the past year, although its 52-week high of $15.66 came back on March 8.

-- Written by Michael Baron in New York.

>To contact the writer of this article, click here: Michael Baron.

>To submit a news tip, send an email to: tips@thestreet.com
Disclosure: TheStreet's editorial policy prohibits staff editors, reporters and analysts from holding positions in any individual stocks.