Harris & Harris Group, Inc. (NASDAQ: TINY), an early-stage, active investor in transformative companies, notes today’s

announcement by Carl Zeiss AG of its planned acquisition of Xradia, Inc. After the closing of the transaction, Xradia will operate under the new name of Carl Zeiss X-ray Microscopy, Inc. The closing of the transaction is subject to the fulfillment of customary closing conditions. Both parties have agreed to keep the purchase price confidential. The press release can be viewed at https://www.zeiss.de/press/pr002a1faa.

Harris & Harris Group is an investor in privately held Xradia. As of March 31, 2013, we valued our securities of Xradia at

$13,140,763, and our cost basis in Xradia is $4,000,000. We currently expect to receive up to approximately $15 million in

proceeds from the sale, including amounts to be held in escrow.

“We are excited to see Xradia’s imaging solutions become part of Carl Zeiss’ family of products. The synergies between the two companies are obvious. A disruptive 3D X-ray technology from Xradia in combination with the global outreach and operational excellence of Carl Zeiss will bring Xradia’s imaging tools into customers’ hands around the globe,” said Alexei Andreev, Executive Vice President and Managing Director at Harris & Harris Group. “We congratulate the founders and the management of Xradia for the successful outcome of their endeavor and hard work.”

Doug Jamison, CEO of Harris & Harris Group, added, “Harris & Harris Group led the first institutional round of financing of

Xradia. Our involvement with the development of this transformative technology from an idea to a growing, commercial

company has been exciting. This successful investment, following multiple liquidity events in recent years, is another example of the potential of our distinct investment model.”

Detailed information about Harris & Harris Group and its holdings can be found on its website at www.HHVC.com and on

Facebook at www.facebook.com/harrisharrisvc.