NHF NexPoint Strategic Opportunities Fund

SCHEDULE 13D/A

This Amendment No. 21 (this “Amendment”) is being filed on behalf of James D. Dondero, and Nancy Marie Dondero (collectively, the “Reporting Persons”), and amends the Schedule 13D filed with the United States Securities and Exchange Commission on September 24, 2014, as subsequently amended on October 24, 2014, as subsequently amended on October 31, 2014, as subsequently amended on February 27, 2015, as subsequently amended on March 12, 2015, as subsequently amended on April 29, 2015, as subsequently amended on August 5, 2015, as subsequently amended on August 11, 2015, as subsequently amended on September 1, 2015, as subsequently amended on October 16, 2015, as subsequently amended on January 22, 2016, as subsequently amended on April 22, 2016, as subsequently amended on August 25, 2016, as subsequently amended on October 25, 2016, as subsequently amended on February 22, 2017, as subsequently amended on June 23, 2017, as subsequently amended on May 8, 2018, as subsequently amended on June 13, 2018, as subsequently amended on October 25, 2018, as subsequently amended on June 19, 2019, and as subsequently amended on January 17, 2020, relating to the Common Stock (the “Common Stock”), of NexPoint Strategic Opportunities Fund (f/k/a NexPoint Credit Strategies Fund), a Delaware statutory trust (the “Issuer”), held by the Reporting Persons and certain related or other entities.

The information set forth in response to each separate Item below shall be deemed to be a response to all Items where such information is relevant. The Schedule 13D is supplementally amended as follows.

The responses to Items 4, 5 and 6 of the Schedule 13D are incorporated herein by reference.

As of April 6, 2020, the Reporting Persons had invested approximately $110,202,987.39 (inclusive of brokerage commissions) in the securities of the Issuer. The source of these funds was the working capital of the Reporting Persons.

Purchases of securities are typically effected through margin accounts maintained with brokers, which may extend margin credit as and when required to open or carry positions in the margin accounts, subject to applicable federal margin regulations, stock exchange rules and the brokers’ credit policies. In such instances, the positions held in the margin accounts are pledged as collateral security for the repayment of debit balances in the accounts.

(a) As of April 6, 2020, (i) James D. Dondero may be deemed to beneficially own 3,961,413.3984 shares of Common Stock, which represents approximately 8.6% of the outstanding Common Stock; and (ii) Nancy Marie Dondero, held in a joint account and in her capacity of trustee of a trust, may be deemed to beneficially own 2,088,999.1 shares of Common Stock, which represents approximately 4.6% of the outstanding Common Stock. James D. Dondero has the right to acquire beneficial ownership of the 2,088,999.1 shares of Common Stock owned by the trust.

(b)

(c) Appendix A attached hereto lists all transactions in the Common Stock during the past sixty (60) days by the Reporting Persons. Except as otherwise noted, the transactions in the Common Stock were effected in the open market.

(d) No person other than the Reporting Persons is known to have the right to receive, or the power to direct the receipt of dividends from, or proceeds from the sale of, the Common Stock.

(e) As a result of the change of control Highland Capital Management, L.P. (“HCMLP”) as January 2020, Mr. Dondero no longer serves as the President or sole director f Strand Advisors, Inc., HCMLP’s general partner, and consequently, no longer has direct or indirect voting or investment control with respect to such shares. Effective March 30, 2020, Mr. Dondero will no longer report beneficial ownership of shares held by HCMLP or its advised accounts.

Dated: April 6, 2020

APPENDIX A

TRANSACTIONS

The following table sets forth all transactions with respect to the Common Stock effected in the last sixty (60) days by the Reporting Persons or on behalf of the Reporting Persons in respect of the shares of Common Stock. All transactions were acquisitions through the exercise of subscription rights.