MicroStrategy’s Vice Chairman Sanju K. Bansal is giving up a paycheck at the Tysons Corner data analytics company he helped found in 1989.

Bansal, 48, has seen his role at the company diminish in recent years. He ceased being the company’s chief operating officer as of last November, so he was no longer an officer in the company he helped build.

MicroStrategy spokesman Warren Getler said Bansal resigned as an employee, but there was no change in Bansal’s status as vice chairman of the board of directors, Getler said.

“He resigned, effective today, and is going to be pursuing new professional opportunities,” Getler said. “It was great service, and he had a great run there for 25 years. He has been a key member of the MicroStrategy leadership team, holding a number of management positions. He made a number of immeasurable contributions.”

Bansal is a major investor in Cvent, a Tysons Corner-based event software company. He owns 13.3 million shares, or 10 percent of Cvent, which is traded on the NYSE. That company’s market cap is $1.38 billion.

The night before

The Buzz visited the pre-Fight Night Party at Kevin Plank’s sprawling Georgetown home last week.

Plank is the billionaire founder and chairman of Under Armour, the Baltimore-based sports apparel and footwear company. He also happens to be the 2013 Fight Night chairman.

The event included roaming oyster servers, a to-die-for bourbon bar (Maker’s Mark, Knob Creek, Bulleit, Woodford Reserve, Basil Hayden’s), a magician and a plethora of local political, business and sports types.

The group included NYSE Euronext chief executive Duncan L. Niederauer, Rep. John Delaney (D-Md.), chef/businessman Jose Andres, former Federal Communications Commission chairman Michael Powell, local investor and former George Washington University Board of Trustees Chairman Russ Ramsey, Monumental Sports & Entertainment Vice Chairman Raul Fernandez (and Fight for Children board chairman), former Republican National Committee chairman Michael Steele, former Washington Redskins linebacker LaVar Arrington, former D.C. mayors Anthony Williams and Adrian Fenty, professional golfer Jordan Spieth, Washington Kastles owner Mark Ein and local billboard mogul and documentary filmmaker Christopher Tavlarides, who financed a documentary of former boxer Ray “Boom Boom” Mancini, who was also present.

Restaurateur and television food celebrity Andres had just come from Baltimore, where he had taken an oath of U.S. citizenship.

“Only in American does a celebrity chef get his official citizenship and an hour later is partying in a Georgetown mansion with the founder and chairman of a homegrown, U.S. sports apparel company,” Fernandez said.

Plank, Fernandez and the late financier Joe Robert, who hosted Fight Night for years, all were students—at one time or another — at St. John’s College High School in Northwest D.C.

The Buzz Hears:

District-based Acon Investments and TPG Capital sold a Minnesota refinery for $775 million. The return amounts to approximately nine times Acon’s investment, according to Acon managing partner Jonathan Ginns. The return includes the capital from the sale, as well as previous distributions and sales made when the company went public last year as a master limited partnership.

The private equity firms bought the refinery three years ago from Marathon Oil. The facility has access to the Bakken shale and Canadian crude. It also owns part of a Minnesota pipeline, which supplies most of the refinery’s crude oil.

Smathers & Branson, the Bethesda-based accessorizers that sell preppie belts, key chains and dog collars to an upscale audience, has opened its first pop-up shop and, after more than a year, finally relaunched its Web site.

The mini-store is in Fairfax County’s Mosaic District through January.

“We want to introduce the best of Smathers & Branson to holiday shoppers,” co-founder Austin Branson said.

The Web site relaunch took some doing. Branson hinted that a painful experience with a Web designer delayed the process.

The nine-year-old company has 20 employees, and was founded by Bowdoin College graduates Peter Smathers Carter and Branson, both 31. Carter is from Maine. Branson grew up in Bethesda and attended St. Albans.

The company, whose goods are available in more than 1,000 retail outlets, plans some new product launches, including footwear.

Ritz-Carlton Georgetown partnered with Georgetown Cupcake to do two cupcake decorating classes in December. G-town Cupcake owners (and sisters) Katherine Berman and Sophie LaMontagne will be at both classes, and a portion of each ticket will benefit Georgetown Ministries. The classes are Dec. 8 and 15, both starting at 2 p.m. Tickets are $75.