Related party transactions	12 Months Ended
Dec. 31, 2019
Related party transactions
Related party transactions	17. Related party transactions bioMérieux is a customer through its Joint Development and License Agreement and also a holder of the Company’s common stock. bioMérieux formerly also had a designee on the Company’s Board of Directors. On September 6, 2018, bioMérieux notified the Company that it was terminating the Amended JDLA. The termination of the agreement resulted in the immediate recognition of the remaining deferred revenue. The Company recognized revenue from bioMérieux related to the Amended JDLA of less than $0.1 million, $2.1 million, and $1.1 million in the years ended December 31 2019, 2018, and 2017, respectively. As described in Note 9, in June 2007, the Company entered into a license agreement for certain intellectual property with Tufts. Tufts is a related party to the Company due to Tuft’s equity ownership in the Company and because a board member of the Company’s Board of Directors was affiliated with Tufts. During the years ended December 31, 2019, 2018, and 2017 the Company recorded royalty expense of $1.0 million, $0.7 million, and $0.5 million, respectively, in cost of product revenue on the consolidated statements of operations. During the year ended December 31, 2017, Harvard University became a related party because a member of the Company’s Board of Directors is affiliated with Harvard University. Revenue recorded from sales to Harvard University was $0.1 million for the year ended December 31, 2019, and less than $0.1 million for each of the years ended December 31, 2018 and December 31, 2017. On November 28, 2018, the Company entered into a sponsor agreement with Powering Precision Health (PPH), a 501(c)6 not-for-profit entity of which an executive of the Company is a board member, through December 31, 2018. The agreement committed a maximum of $120,000 in funds and services to be provided to PPH for the term of the agreement. On November 14, 2019, the Company entered into the first amendment to the PPH sponsorship agreement. The agreement amended the $120,000 annual committed maximum amount to $200,000 for the annual committed amount. The agreement is terminable by either party and does not bind the Company to beyond the term of the agreement. For the years ended December 31, 2019 and 2018, the Company had total contributions of $0.1 million and less than $0.1 million, respectively.

17. Related party transactions

bioMérieux is a customer through its Joint Development and License Agreement and also a holder of the Company’s common stock. bioMérieux formerly also had a designee on the Company’s Board of Directors. On September 6, 2018, bioMérieux notified the Company that it was terminating the Amended JDLA. The termination of the agreement resulted in the immediate recognition of the remaining deferred revenue. The Company recognized revenue from bioMérieux related to the Amended JDLA of less than $0.1 million, $2.1 million, and $1.1 million in the years ended December 31 2019, 2018, and 2017, respectively.

As described in Note 9, in June 2007, the Company entered into a license agreement for certain intellectual property with Tufts. Tufts is a related party to the Company due to Tuft’s equity ownership in the Company and because a board member of the Company’s Board of Directors was affiliated with Tufts. During the years ended December 31, 2019, 2018, and 2017 the Company recorded royalty expense of $1.0 million, $0.7 million, and $0.5 million, respectively, in cost of product revenue on the consolidated statements of operations.

During the year ended December 31, 2017, Harvard University became a related party because a member of the Company’s Board of Directors is affiliated with Harvard University. Revenue recorded from sales to Harvard University was $0.1 million for the year ended December 31, 2019, and less than $0.1 million for each of the years ended December 31, 2018 and December 31, 2017.

On November 28, 2018, the Company entered into a sponsor agreement with Powering Precision Health (PPH), a 501(c)6 not-for-profit entity of which an executive of the Company is a board member, through December 31, 2018. The agreement committed a maximum of $120,000 in funds and services to be provided to PPH for the term of the agreement. On November 14, 2019, the Company entered into the first amendment to the PPH sponsorship agreement. The agreement amended the $120,000 annual committed maximum amount to $200,000 for the annual committed amount. The agreement is terminable by either party and does not bind the Company to beyond the term of the agreement. For the years ended December 31, 2019 and 2018, the Company had total contributions of $0.1 million and less than $0.1 million, respectively.