Gross profit was $27.2 million for the third quarter of 2023, an increase of 1% compared to a gross profit of $26.9 million in the third quarter of 2022. Gross profit margin was 57% in the third quarter of 2023 compared to 66% in the third quarter of 2022. Adjusted gross profit margin, after adjusting for stock-based compensation expense and amortization of acquisition-related intangibles, was 59% in the third quarter of 2023 compared to 68% in the third quarter of 2022.
Operating expenses were $33.6 million for the third quarter of 2023, a 32% increase from $25.5 million in the third of 2022. The increases in operating expenses were primarily due to expenses related to increased headcount from the Luminex acquisition and personnel-related expenses across sales and marketing, research and development and general administrative. These expenses included an increase in trade shows and other sales and marketing costs, and an increase in fixed assets and intangible assets amortization costs.
Research and development expenses were $11.2 million for the third quarter of 2023 compared to $8.7 million for the third quarter of 2022.
Sales and marketing expenses were $12.1 million for the third quarter of 2023 compared to $8.8 million for the third quarter of 2022.
General and administrative expenses were $10.4 million for the third quarter of 2023, an increase from $8.0 million for the third quarter of 2022.
Loss from operations in the third quarter of 2023 was $6.4 million compared to income from operations of $1.4 million in the third quarter of 2022. Net loss in the third quarter of 2023 was $6.5 million compared to a net income of $1.6 million in the third quarter of 2022.
Adjusted EBITDA in the third quarter of 2023 was $3.7 million compared to $7.3 million in the third quarter of 2022, after adjusting for stock-based compensation expense and foreign currency exchange impacts.
Cash, cash equivalents, and short-term investments in marketable securities were approximately $288.0 million as of September 30, 2023, compared to $344.0 million as of December 31, 2022. The decline was primarily due to the acquisition of business lines from Luminex and Cytek’s repurchase of stock in 2023.
Please refer to Cytek’s Quarterly Report on Form 10-Q, expected to be filed with the Securities and Exchange Commission on November 9, 2023, for Cytek’s results of operations and financial condition for the third quarter of 2023.
2023 Outlook
Cytek Biosciences expects full year 2023 total revenue to be in the range of $188 million to $192 million, representing growth of 15% to 17% over full year 2022. This includes an expected revenue contribution from our organic business to be approximately flat versus 2022 and in the range of $25 million to $30 million from the Luminex flow cytometry and imaging business, which was acquired on February 28, 2023.
Webcast Information
Cytek will host a conference call to discuss the third quarter 2023 financial results on Tuesday, November 7, 2023, at 1:30 p.m. Pacific Time / 4:30 p.m. Eastern Time. A webcast of the conference call can be accessed at investors.cytekbio.com.