SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13D/A

Under the Securities Exchange Act of 1934

(Amendment No. 23)*

If the filing person has previously filed a statement on Schedule 13G to report the acquisition which is the subject of this Schedule 13D, and is filing this schedule because of Rule 13d-1(e), Rule 13d-1(f) or Rule 13d-1(g), check the following box  ☐.

Note: Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. See Rule 13d-7(b) for other parties to whom copies are to be sent.

The information required on the remainder of this cover page shall not be deemed to be “filed” for purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

EXPLANATORY NOTE

This Amendment No. 23 (the “Amendment”) amends and supplements the statement on Schedule 13D filed on February 15, 2007, as amended by Amendment No. 1 to the Schedule 13D filed on April 6, 2007, as amended by Amendment No. 2 to the Schedule 13D filed on August 2, 2007, as amended by Amendment No. 3 to the Schedule 13D filed on February 14, 2008, as amended by Amendment No. 4 to Schedule 13D filed on August 21, 2008, as amended by Amendment No. 5 to the Schedule 13D filed on February 26, 2009, as amended by Amendment No. 6 to the Schedule 13D filed on March 19, 2009, as amended by Amendment No. 7 to the Schedule 13D filed on October 1, 2009, as amended by Amendment No. 8 to the Schedule 13D filed on March 28, 2011, as amended by Amendment No. 9 to the Schedule 13D filed on October 24, 2011, as amended by Amendment No. 10 to the Schedule 13D filed on October 11, 2012, as amended by Amendment No. 11 to the Schedule 13D filed on March 21, 2013, as amended by Amendment No. 12 to the Schedule 13D filed on September 16, 2013, as amended by Amendment No. 13 to the Schedule 13D filed on February 17, 2015, as amended by Amendment No. 14 to the Schedule 13D filed on December 18, 2015, as amended by Amendment No. 15 to Schedule 13-D filed on September 20, 2017, as amended by Amendment No. 16 to Schedule 13-D filed on November 20, 2018, as amended by Amendment No. 17 to Schedule 13-D filed on March 20, 2019, as amended by Amendment No. 18 to Schedule 13-D filed on March 22, 2019, as amended by Amendment No. 19 to Schedule 13-D filed on November 1, 2019, as amended by Amendment No. 20 to Schedule 13-D filed on August 19, 2022, as amended by Amendment No. 21 to Schedule 13-D filed on February 21, 2023, as amended by Amendment No. 22 to Schedule 13-D file on January 22, 2024 (collectively, the “Original Schedule 13D”), by The Frost Group, LLC (the “Frost Group”), a previously reporting entity, Frost Gamma Investments Trust (“Gamma Trust”), Frost Nevada Investments Trust (“Frost Nevada”), and Phillip Frost, M.D. (“Dr. Frost”). This Amendment is filed pursuant to the Joint Filing Agreement as executed by the reporting persons listed on the cover pages to this Amendment. The Joint Filing Agreement, filed as Exhibit 1 to Amendment No. 15 to the Schedule 13D filed on September 20, 2017, is hereby incorporated by this reference.   This Amendment is filed with respect to the common stock, par value $0.01 per share (“Common Stock”), of OPKO Health, Inc., a Delaware corporation (the “Issuer”).

This Amendment is being filed solely as a result of a change in the Issuer's number of outstanding shares of Common Stock.

(a)-(b) Gamma Trust directly beneficially owns 205,868,225 shares of Common Stock. The 205,868,225 total shares of Common Stock beneficially owned by Gamma Trust constitute approximately 29.5% of the Issuer’s outstanding shares of Common Stock, based upon (i) 696,991,677 shares of Common Stock outstanding as of January 22, 2024 as communicated by the Issuer to the Reporting Person. Dr. Frost is the sole trustee of Gamma Trust and holds sole voting and dispositive power with respect to 205,868,225 shares of Common Stock.

Frost Nevada directly beneficially owns 30,127,177 shares of Common Stock. The 30,127,177 total shares of Common Stock beneficially owned by Frost Nevada constitute approximately 4.3% of the Issuer’s outstanding shares of Common Stock, based upon 696,991,677 shares of Common Stock outstanding as of January 22, 2024 as communicated by the Issuer to the Reporting Person. Dr. Frost is the sole trustee of Frost Nevada and holds sole voting and dispositive power with respect to 30,127,177 shares of Common Stock.

Dr. Frost, as the sole trustee of Gamma Trust, may be deemed to beneficially own the 205,868,225 shares of Common Stock beneficially owned by Gamma Trust. Dr. Frost, as the sole trustee of Frost Nevada may be deemed to beneficially own the 30,127,177 shares of Common Stock beneficially owned by Frost Nevada. In addition, the Phillip and Patricia Frost Philanthropic Foundation, Inc., which is controlled by Dr. Frost and his wife, owns 2,851,830 shares of Common Stock. Dr. Frost individually owns 3,068,951 shares of Common Stock and options to acquire 2,787,500 shares of Common Stock, which are exercisable within 60 days, and has sole voting and dispositive power over each. The 244,703,683 shares of Common Stock beneficially owned by Dr. Frost constitute approximately 35.0% of the Issuer’s outstanding shares of Common Stock, based upon (i) 696,991,677 shares of Common Stock outstanding as of  January 22, 2024 as communicated by the Issuer to the Reporting Person; and (ii) options to acquire 2,787,500 shares of Common Stock, which are exercisable within 60 days. Dr. Frost, as sole trustee of Gamma Trust, has sole voting and dispositive power over 205,868,225 shares of Common Stock. Dr. Frost, as sole trustee of Frost Nevada, has sole voting and dispositive power over 30,127,177 shares of Common Stock. Dr. Frost has shared voting and dispositive power with respect to 2,851,830 shares of Common Stock owned by the Phillip and Patricia Frost Philanthropic Foundation, Inc.

(c) In the last 60 days prior to the filing of this Amendment No. 23, Frost Nevada and Dr. Frost have not effected any transactions in the shares of Common Stock.

In the last 60 days prior to the filing of this Amendment No. 23, Gamma Trust acquired a total of 3,911,531 shares of Common Stock on the open market at prices ranging from $0.853 to $0.9985 per share for an aggregate purchase price of approximately $3,654,120.67. The following table sets forth the information with regard to Common Stock purchased by Gamma Trust on the open market in the last 60 days.

(d) Except as described herein, no other person is known by any Reporting Person to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, any shares of the Issuer beneficially owned by them.

SIGNATURES

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.