SEATTLE — NanoString Technologies, Inc. (NASDAQ:NSTG), a provider of life science tools for translational research and molecular diagnostic products, today provided preliminary operational and financial results for the year endedDecember 31, 2015.

Financial Highlights:

Total revenue for 2015 expected to be in the range of $61.5 to $62.5 million, representing an increase of 29% to 31% over 2014, versus prior guidance of $60.0 to $63.0 million

Total revenue for the fourth quarter of 2015 expected to be in the range of $21.1 to $22.1 million, representing an increase of 35% to 42% over the fourth quarter of 2014

Cash, cash equivalents and short-term investments of approximately $48.0 million at December 31, 2015

Operational Highlights:

Approximately 100 nCounter® Analysis Systems sold in 2015, including 20 nCounter SPRINT™ Profilers

Installed base of over 350 nCounter Analysis Systems at December 31, 2015

More than 980 cumulative peer-reviewed publications of studies based on nCounter technology as of December 31, 2015

“We are pleased with our fourth quarter performance which delivered record revenues and strong growth across instruments, consumables, and collaborations,” said President and Chief Executive Officer, Brad Gray. “We closed 2015 having achieved virtually all of our strategic objectives, with an expanded product line-up, substantially larger addressable markets, increased momentum in diagnostic commercialization, and multiple biopharma collaborations. In the year ahead, we look forward to penetrating the expanded market opportunity driven by our new nCounter SPRINT Profiler, demonstrating the potential of 3D Biology™, and extending our leadership in the development of complex companion diagnostics.”

The company provided updated 2015 revenue guidance in advance of the J.P. Morgan Healthcare Conference, where President and Chief Executive Officer, Brad Gray, will present at 7:30 a.m. PST on Wednesday, January 13, 2016. A live webcast of the presentation will be available online from the investor relations page of the company’s corporate website at www.nanostring.com. After the live webcast, the presentation will remain available on the website for approximately 90 days.

These preliminary financial results are based on management’s initial analysis of operations for the quarter and year ended December 31, 2015 and are subject to further internal review and audit by the company’s external auditors. The company expects to issue full 2015 financial results and 2016 guidance during its quarterly conference call in late February 2016.

About NanoString Technologies, Inc.

NanoString Technologies provides life science tools for translational research and molecular diagnostic products. The company’s nCounter Analysis System has been employed in life sciences research since it was first introduced in 2008 and has been cited in more than 900 peer-reviewed publications. The nCounter Analysis System offers a cost-effective way to easily profile the expression of hundreds of genes, proteins, miRNAs, or copy number variations, simultaneously with high sensitivity and precision, facilitating a wide variety of basic research and translational medicine applications, including biomarker discovery and validation. The company’s technology has also been applied to diagnostic use. The Prosigna® Breast Cancer Prognostic Gene Signature Assay together with the nCounter Dx Analysis System is FDA510(k) cleared for use as a prognostic indicator for distant recurrence of breast cancer.

For more information, please visit www.nanostring.com.

The NanoString Technologies logo, NanoString, NanoString Technologies, nCounter, nCounter SPRINT, 3D Biology and Prosigna are registered trademarks or trademarks of NanoString Technologies, Inc. in various jurisdictions.