As of June 30, 2020, 4 of our collateralized debt obligation (“CDO”) structures within our Investing and Servicing Segment were in default or imminent default, which, pursuant to the underlying indentures, changes the rights of the variable interest holders. Upon default of a CDO, the trustee or senior note holders are allowed to exercise certain rights, including liquidation of the collateral, which at that time, is the activity which would most significantly impact the CDO’s economic performance. Further, when the CDO is in default, the collateral administrator no longer has the option to purchase securities from the CDO. In cases where the CDO is in default and we do not have the ability to exercise rights which would most significantly impact the CDO’s economic performance, we do not consolidate the VIE. As of June 30, 2020, NaN of these CDO structures were consolidated.
As noted above, we are not obligated to provide, nor have we provided, any financial support for any of our securitization VIEs, whether or not we are deemed to be the primary beneficiary. As such, the risk associated with our involvement in these VIEs is limited to the carrying value of our investment in the entity. As of June 30, 2020, our maximum risk of loss related to securitization VIEs in which we were not the primary beneficiary was $23.5 million on a fair value basis.
As of June 30, 2020, the securitization VIEs which we do not consolidate had debt obligations to beneficial interest holders with unpaid principal balances, excluding the notional value of interest-only securities, of $4.1 billion. The corresponding assets are comprised primarily of commercial mortgage loans with unpaid principal balances corresponding to the amounts of the outstanding debt obligations.
We also hold passive non-controlling interests in certain unconsolidated entities that are considered VIEs. We are not the primary beneficiaries of these VIEs as we do not possess the power to direct the activities of the VIEs that most significantly impact their economic performance and therefore report our interests, which totaled $21.2 million as of June 30, 2020, within investment in unconsolidated entities on our condensed consolidated balance sheet. Our maximum risk of loss is limited to our carrying value of the investments.
15. Related-Party Transactions
Management Agreement
We are party to a management agreement (the “Management Agreement”) with our Manager. Under the Management Agreement, our Manager, subject to the oversight of our board of directors, is required to manage our day to day activities, for which our Manager receives a base management fee and is eligible for an incentive fee and stock awards. Our Manager’s personnel perform certain due diligence, legal, management and other services that outside professionals or consultants would otherwise perform. As such, in accordance with the terms of our Management Agreement, our Manager is paid or reimbursed for the documented costs of performing such tasks, provided that such costs and reimbursements are in amounts no greater than those which would be payable to outside professionals or consultants engaged to perform such services pursuant to agreements negotiated on an arm’s-length basis. Refer to Note 16 to the consolidated financial statements included in our Form 10-K for further discussion of this agreement.
Base Management Fee. For the three months ended June 30, 2020 and 2019, approximately $19.1 million and $18.9 million, respectively, was incurred for base management fees. For the six months ended June 30, 2020 and 2019, approximately $38.2 million and $38.5 million, respectively, was incurred for base management fees. In April 2020, our board of directors authorized the payment of our first quarter base management fee of $19.1 million in 1,422,143 shares of our common stock. As of June 30, 2020 and December 31, 2019, there were $19.1 million and $19.3 million, respectively, of unpaid base management fees included in related-party payable in our condensed consolidated balance sheets.
Incentive Fee. There were 0 incentive fees incurred during the three months ended June 30, 2020 and 2019. For the six months ended June 30, 2020 and 2019, approximately $15.8 million and $0.2 million, respectively, was incurred for incentive fees. As of December 31, 2019, there were $18.1 million of unpaid incentive fees included in related-party payable in our condensed consolidated balance sheets. There were 0 unpaid incentive fees as of June 30, 2020.
Expense Reimbursement. For the three months ended June 30, 2020 and 2019, approximately $1.5 million and $1.7 million, respectively, was incurred for executive compensation and other reimbursable expenses and recognized within general and administrative expenses in our condensed consolidated statements of operations. For the six months