NEW YORK (

TheStreet

) --

Morgan Stanley's

(MS) - Get Report

so-called "queen of the Net" technology stock analyst is leaving after nearly 20 years with the investment bank.

Mary Meeker, Morgan Stanley's pro-Internet equities analyst, will become partner at venture capital firm, Kleiner Perkins Caufield & Byers, according to an internal memo sent to Morgan Stanley staff on Monday.

Mary Meeker, Morgan Stanley technology analyst.

Meeker, 51, was one of the first analysts to cover technology stocks such as

Dell

(DELL) - Get Report

and

Microsoft

(MSFT) - Get Report

, as well as speculative stocks at the time like

Intuit

(INTU) - Get Report

,

AOL

(before the merger with

Time Warner

(TWX)

),

Netscape

,

Yahoo!

(YHOO)

,

Amazon.com

(AMZN) - Get Report

,

eBay

(EBAY) - Get Report

, and

Google

(GOOG) - Get Report

.

More recently, Meeker's research has focused on mobile communications and other big picture themes in the technology and e-commerce space.

"Throughout her tenure at the firm, Mary has served as a dedicated culture carrier and raised the profile of our business," the Morgan Stanley memo said. "We will certainly miss her strong work ethic, collaborative spirit and keen sense of humor."

Morgan Stanley said that Scott Devitt will be assuming sole coverage of the U.S. Internet sector.

The Menlo Park, Calif.-based venture capital firm "has a long and exceptional track record of helping entrepreneurs build world-changing ventures and launch new industries," Meeker said in a statement put out Monday by Kleiner Perkins Caufield and Byers. "We're at the beginning of another great wave of tech innovation and I am incredibly excited by the opportunity to help the next generation of Internet technologies and leaders."

Meeker will be based in Silicon Valley and travel often to New York and Asia, according to the statement by Kleiner Perkins Caufield and Byers.

A Morgan Stanley representative referred to the memo for company comments.

Shares of Morgan Stanley were most recently trading flat at $24.74.

-- Written by Laurie Kulikowski in New York.

To contact the writer of this article, click here:

Laurie Kulikowski

.

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Disclosure: TheStreet's editorial policy prohibits staff editors, reporters and analysts from holding positions in any individual stocks.