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SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549 |
SCHEDULE 13D
Under the Securities Exchange Act of 1934
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Cocrystal Pharma, Inc. (Name of Issuer) |
Common Stock, par value $0.001 per share (Title of Class of Securities) |
(CUSIP Number) |
Camielle Green OPKO Health, Inc., 4400 Biscayne Blvd. Miami, FL, 33137 3055754100 (Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications) |
07/31/2026 (Date of Event Which Requires Filing of This Statement) |
SCHEDULE 13D
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| CUSIP No. |
| 1 |
Name of reporting person
OPKO HEALTH, INC. | ||||||||
| 2 | Check the appropriate box if a member of a Group (See Instructions)
(a)
(b) | ||||||||
| 3 | SEC use only | ||||||||
| 4 |
Source of funds (See Instructions)
WC | ||||||||
| 5 |
Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)
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| 6 | Citizenship or place of organization
DELAWARE
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| Number of Shares Beneficially Owned by Each Reporting Person With: |
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| 11 | Aggregate amount beneficially owned by each reporting person
5,692,916.00 | ||||||||
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)
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| 13 | Percent of class represented by amount in Row (11)
29.6 % | ||||||||
| 14 | Type of Reporting Person (See Instructions)
CO |
SCHEDULE 13D
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| CUSIP No. |
| 1 |
Name of reporting person
FROST PHILLIP MD ET AL | ||||||||
| 2 | Check the appropriate box if a member of a Group (See Instructions)
(a)
(b) | ||||||||
| 3 | SEC use only | ||||||||
| 4 |
Source of funds (See Instructions)
OO | ||||||||
| 5 |
Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)
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| 6 | Citizenship or place of organization
UNITED STATES
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| Number of Shares Beneficially Owned by Each Reporting Person With: |
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| 11 | Aggregate amount beneficially owned by each reporting person
2,786,412.00 | ||||||||
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)
| ||||||||
| 13 | Percent of class represented by amount in Row (11)
13.9 % | ||||||||
| 14 | Type of Reporting Person (See Instructions)
IN |
SCHEDULE 13D
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| CUSIP No. |
| 1 |
Name of reporting person
Frost Gamma Investments Trust | ||||||||
| 2 | Check the appropriate box if a member of a Group (See Instructions)
(a)
(b) | ||||||||
| 3 | SEC use only | ||||||||
| 4 |
Source of funds (See Instructions)
OO | ||||||||
| 5 |
Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)
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| 6 | Citizenship or place of organization
FLORIDA
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| Number of Shares Beneficially Owned by Each Reporting Person With: |
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| 11 | Aggregate amount beneficially owned by each reporting person
2,712,977.00 | ||||||||
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)
| ||||||||
| 13 | Percent of class represented by amount in Row (11)
13.6 % | ||||||||
| 14 | Type of Reporting Person (See Instructions)
OO |
SCHEDULE 13D
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| CUSIP No. |
| 1 |
Name of reporting person
Rubin Steven D | ||||||||
| 2 | Check the appropriate box if a member of a Group (See Instructions)
(a)
(b) | ||||||||
| 3 | SEC use only | ||||||||
| 4 |
Source of funds (See Instructions)
OO | ||||||||
| 5 |
Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)
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| 6 | Citizenship or place of organization
UNITED STATES
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| Number of Shares Beneficially Owned by Each Reporting Person With: |
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| 11 | Aggregate amount beneficially owned by each reporting person
2,724,860.00 | ||||||||
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)
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| 13 | Percent of class represented by amount in Row (11)
14.1 % | ||||||||
| 14 | Type of Reporting Person (See Instructions)
IN |
SCHEDULE 13D
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| Item 1. | Security and Issuer |
| (a) | Title of Class of Securities:
Common Stock, par value $0.001 per share |
| (b) | Name of Issuer:
Cocrystal Pharma, Inc. |
| (c) | Address of Issuer's Principal Executive Offices:
19805 N. CREEK PARKWAY, BOTHELL,
WASHINGTON
, 98011. |
| Item 2. | Identity and Background |
| (a) | This statement is being filed by:
(i) OPKO Health, Inc. ("OPKO"), a corporation incorporated under the laws of the State of Delaware;
(ii) Phillip Frost, M.D. as Chief Executive Officer of OPKO ("Dr. Frost");
(iii) Frost Gamma Investments Trust ("FGIT"), a trust organized under the laws of the State of Florida; and
(iv) Steven D. Rubin ("Mr. Rubin").
Each of the foregoing is referred to as a "Reporting Person" and collectively as the "Reporting Persons". The Reporting Persons have entered into a joint filing agreement, dated as of August 7, 2026, a copy of which is attached hereto as Exhibit 2.
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| (b) | The address of the principal business and principal office of OPKO is 4400 Biscayne Blvd., Miami, Florida 33137. The address of the principal business and principal office of Dr. Frost, FGIT and Mr. Rubin is 4400 Biscayne Blvd., Suite 1500, Miami, Florida 33137. |
| (c) | OPKO is a diversified healthcare company that seeks to establish industry-leading positions in large and rapidly growing medical markets. Dr. Frost's principal occupation is serving as Chairman and Chief Executive Officer of OPKO. The principal business of FGIT is to invest in securities. Dr. Frost is the sole trustee of FGIT. Mr. Rubin's principal occupation is serving as Executive Vice President - Administration and Director of OPKO. |
| (d) | No Reporting Person or any of the persons listed on Exhibit 1 hereto has, during the last five years, been convicted in a criminal proceeding (excluding traffic violations or similar misdemeanors). |
| (e) | No Reporting Person has, during the last five years, been a party to a civil proceeding of a judicial or administrative body of competent jurisdiction and as a result of such proceeding was or is subject to a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities laws or finding any violations with respect to such laws. |
| (f) | Dr. Frost and Mr. Rubin are citizens of the United States of America. OPKO was incorporated in the State of Delaware. FGIT was organized in the State of Florida. |
| Item 3. | Source and Amount of Funds or Other Consideration |
OPKO entered into a Securities Purchase Agreement with the Issuer pursuant to which OPKO purchased 5,474,053 shares of Common Stock for a total purchase price of $5,000,000. The source of funds used by OPKO for its acquisition of securities of the Issuer was working capital. For information with respect to Dr. Frost and FGIT, please refer to the Schedule 13D/A filed on August 7, 2026, which is incorporated by reference herein. | |
| Item 4. | Purpose of Transaction |
OPKO acquired the shares of Common Stock for investment purposes. On July 31, 2026, OPKO and Issuer entered into the Securities Purchase Agreement pursuant to which OPKO purchased $5,000,000 of Common Stock from the Issuer.
Dr. Frost and FGIT acquire shares of common stock for investment purposes. Further, in their capacity as directors of the Issuer, Dr. Frost and Mr. Rubin may, from time to time, formulate plans or proposals regarding the Issuer or its securities for consideration by the board
of directors of the Issuer and the Issuer's management.
OPKO intends to review its investments in the Issuer on a continuing basis. Depending on various factors, including, without limitation, the Issuer's financial position and strategic direction, actions taken by the board of directors, price levels of shares of the Common Stock, other investment opportunities available to OPKO, concentration of positions in the portfolios managed by OPKO, market conditions and general economic and industry conditions, OPKO may in the future take such actions with respect to their investments in the Issuer as it deems appropriate, including, without limitation, purchasing additional shares of the Common Stock or other financial instruments related to the Issuer or selling some or all of their beneficial or economic holdings, engaging in hedging or similar transactions with respect to the securities relating to the Issuer and/or otherwise changing their intention with respect to any and all matters referred to in Item 4 of Schedule 13D.
In connection with a transaction and series of related mergers (collectively, the "Merger") through which Cocrystal Merger Sub, Inc., a Delaware corporation, and RFS Pharma, LLC, a Georgia limited liability company ("RFS Pharma"), became wholly-owned subsidiaries of the Issuer, each of the Reporting Persons entered into a Stockholders Rights Agreement with the Issuer and certain other persons (the "Stockholders Rights Agreement"). Under the Stockholders Rights Agreement, each of the Reporting Persons and other parties thereto (other than the Issuer) entered into voting agreements and granted an irrevocable proxy with respect to the voting of Common Stock and any preferred stock of the Issuer in favor of certain individuals selected in accordance with the Stockholders Rights Agreement. Additionally, the Issuer granted the Reporting Persons and other parties to the Stockholders Rights Agreement a right of first refusal on participation in future equity financings by the Issuer until such time as the Issuer has cumulatively raised $70 million in equity financings. Dr. Frost and Mr. Rubin currently serve as directors of the Issuer. This filing shall not be deemed an admission that any of the Reporting Persons constituted a "group" with any other signatories of the Stockholders Rights Agreement for purposes of Section 13(d) of the Exchange Act.
Except as disclosed herein, none of the Reporting Persons has any plans or proposals which relate to or which would result in any of the actions specified in this paragraph of Item 4 of Schedule 13D.
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| Item 5. | Interest in Securities of the Issuer |
| (a) | The information contained in rows 7, 8, 9, 10, 11 and 13 on each of the cover pages of this Schedule 13D and the information set forth or incorporated in Items 2, 3, 4 and 6 is incorporated by reference in its entirety into this Item 5.
OPKO's reported ownership does not include securities beneficially owned by FGIT, Dr. Frost or Mr. Rubin. OPKO disclaims beneficial ownership of the securities of the Issuer owned by FGIT, Dr. Frost, and Mr. Rubin.
Dr. Frost and FGIT's reported ownership does not include securities owned by OPKO. In addition to serving as Chairman and Chief Executive Officer of OPKO, Dr. Frost and entities controlled by Dr. Frost (including FGIT) beneficially own approximately 34% of the outstanding common stock of OPKO. Dr. Frost and FGIT each disclaim beneficial ownership of the securities of the Issuer owned by OPKO.
Richard C. Pfenniger, Jr., a member of the board of directors of the Issuer and OPKO beneficially owns 87,551, or approximately 0.45% of the outstanding shares of Common Stock, which include shares of Common Stock issuable upon the exercise of stock options, warrants, and restricted stock units, exercisable within 60 days. Mr. Pfenniger has no voting or other rights and no beneficial interest in the shares of Common Stock owned by each of OPKO, Dr. Frost and FGIT. This report shall not be deemed an admission that Mr. Pfenniger is the beneficial owner of the securities for any purpose.
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| (b) | The information contained in rows 7, 8, 9, 10, 11 and 13 on each of the cover pages of this Schedule 13D and the information set forth or incorporated in Items 2, 3, 4 and 6 is incorporated by reference in its entirety into this Item 5.
OPKO's reported ownership does not include securities beneficially owned by FGIT, Dr. Frost or Mr. Rubin. OPKO disclaims beneficial ownership of the securities of the Issuer owned by FGIT, Dr. Frost, and Mr. Rubin.
Dr. Frost and FGIT's reported ownership does not include securities owned by OPKO. In addition to serving as Chairman and Chief Executive Officer of OPKO, Dr. Frost and entities controlled by Dr. Frost (including FGIT) beneficially own approximately 34% of the outstanding common stock of OPKO. Dr. Frost and FGIT each disclaim beneficial ownership of the securities of the Issuer owned by OPKO.
Richard C. Pfenniger, Jr., a member of the board of directors of the Issuer and OPKO beneficially owns 87,551, or approximately 0.45% of the outstanding shares of Common Stock, which include shares of Common Stock issuable upon the exercise of stock options, warrants, and restricted stock units, exercisable within 60 days. Mr. Pfenniger has no voting or other rights and no beneficial interest in the shares of Common Stock owned by each of OPKO, Dr. Frost and FGIT. This report shall not be deemed an admission that Mr. Pfenniger is the beneficial owner of the securities for any purpose. |
| (c) | In the last 60 days prior to the filing of this Schedule 13D, Mr. Rubin has not effected any transactions in the shares of Common Stock.
In the last 60 days prior to the filing of this Schedule 13D, OPKO acquired a total of 5,474,053 shares of Common Stock on July 31, 2026, pursuant to the Securities Purchase Agreement for a per share purchase price of $0.9134 and a total purchase price of $5,000,000.
In the last 60 days prior to the filing of this Schedule 13D, FGIT acquired a total of 85,000 shares of Common Stock on the open market at prices ranging from $0.87 to $0.9898 per share for an aggregate purchase price of approximately $80,404.18 as set forth below:
Date: August 3, 2026
Shares: 75,000
Aggregate Purchase Price: $70,587.84
Weighted Average Price Per Share: $0.9412
Date: August 5, 2026
Shares: 10,000
Aggregate Purchase Price: $9,816.34
Weighted Average Price Per Share: $0.9816
In addition, on June 30, 2026, Dr. Frost and Mr. Rubin acquired shares of Common Stock as the result of the vesting of restricted stock units in the amounts of 1,694 shares and 504 shares, respectively.
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| (d) | No other person is known to the Reporting Persons to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the shares of the Common Stock covered by this Schedule 13D. |
| (e) | Not applicable. |
| Item 6. | Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer |
The information set forth or incorporated in Item 4 is incorporated by reference in its entirety into this Item 6.
On August 7, 2026, the Reporting Persons entered into a Joint Filing Agreement in which the Reporting Persons agreed to the joint filing on behalf of each of them of statements on Schedule 13D with respect to the securities of the Issuer to the extent required by applicable law. The Joint Filing Agreement is attached hereto as Exhibit 2 and is incorporated by reference.
Except for the matters described herein, the Reporting Persons do not have any contract, arrangement, understanding or relationship (legal or otherwise) with any person with respect to the securities of the Issuer. | |
| Item 7. | Material to be Filed as Exhibits. |
Exhibit 1 OPKO Directors and Executive Officers
Exhibit 2 Joint Filing Agreement
Exhibit 3 Stockholder Rights Agreement, dated as of November 25, 2014 (2)
Exhibit 4 Power of Attorney
(2) Incorporated by reference to Exhibit 4.1 of the Issuer's Form 8-K filed with the Securities and Exchange Commission on December 1, 2014. |
| SIGNATURE | |
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.
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