Net cash provided by investing activities during the nine months ended September 30, 2019 was $35.8 million, an increase of approximately $8.3 million from the $27.5 million net cash used in investing activities for the same period in 2018. During the nine months ended September 30, 2019 compared to the same period in 2018, the net change in our investments sold compared to purchased decreased by $36.8 million. These net proceeds provided cash to fund our operations.
Financing Activities. Net cash provided by financing activities during the nine months ended September 30, 2019 was $4.2 million, a decrease of $46.7 million compared to the same period in 2018. The decrease in net cash provided by financing activities for the nine months ended September 30, 2019 compared to the prior year was primarily due to $44.6 million in net proceeds from borrowing under our former term loan agreement with CRG Servicing LLC in May 2018. We did not have a similar borrowing during the 2019 period.
Loan and Security Agreement. On August 2, 2019, we entered into a Loan and Security Agreement with Silicon Valley Bank (the Loan Agreement), which provides for a $50.0 million revolving line of credit facility. Under the Loan Agreement we may draw, on a revolving basis, up to the lesser of $50.0 million and 85.0% of our eligible accounts receivable, less certain reserves. The Loan Agreement is secured by all our assets excluding intellectual property and development program inventories and matures on August 2, 2022. As of September 30, 2019, we had no outstanding borrowings under the Loan Agreement and we were in compliance with all covenants. See Part I, Item 1, Note 5 – “Debt” for more information regarding the Loan Agreement.
Contractual Obligations and Commitments
Our future minimum contractual commitments and obligations were reported in our Annual Report on Form 10-K for the year ended December 31, 2018. Other than the following, our future minimum contractual obligations and commitments have not changed materially from the amounts previously reported.
Goods & Services
We have certain non-cancelable obligations under various other agreements for the acquisition of goods and services associated with the manufacturing of our product candidates that contain firm commitments. As of September 30, 2019, our aggregate firm commitments are $22.6 million.
We may also be required, in connection with in-licensing or asset acquisition agreements, to make certain royalty and milestone payments and we cannot, at this time, determine when or if the related milestones will be achieved or whether the events triggering the commencement of payment obligations will occur. Therefore, such payments are not included in the amount above.
Lease Agreements
We have operating leases related to our office and laboratory space in The Omeros Building. The initial term of the leases is through November 2027 and we have two options to extend the lease term, each by five years. We have finance leases for certain laboratory and office equipment that have lease terms expiring through December 2023. On January 1, 2019, we adopted Topic 842. The adoption did not change our contractual obligations related to lease agreements. See Part I, Item 1, Note 7 - “Lease Liabilities” for the maturities of our lease liabilities as of September 30, 2019.
Critical Accounting Policies and Significant Judgments and Estimates
There have not been any material changes in our critical accounting policies and significant judgments and estimates as disclosed in Part II, Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations” included in our Annual Report on Form 10-K for the year ended December 31, 2018, except for the adoption ASU 2016-02, Leases. See Part I, Item 1, Note 1 - “Organization and Significant Accounting Policies” and Note 7 - “Lease Liabilities” in this Form 10-Q for additional information about our adoption of ASU 2016-02, Leases.