Proxy Solicitation & Information Statement • May 2, 2023
Proxy Solicitation & Information Statement
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WASHINGTON, D.C. 20549
Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934
Filed by the Registrant Filed by a party other than the Registrant
Check the appropriate box:
Preliminary Proxy Statement
Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
Definitive Proxy Statement
Definitive Additional Materials
Soliciting Material under 240.14a-12
(Name of Registrant as Specified In Its Charter)
(Name of Person(s) Filing Proxy Statement, if other than the Registrant)
Payment of Filing Fee (Check the appropriate box)
No fee required
Fee paid previously with preliminary materials.
Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11.

Stockholders Meeting to be held on June 22, 2023 For Stockholders as of April 24, 2023
This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. This is not a ballot. You cannot use this notice to vote your shares. We encourage you to access and review all of the important information contained in the proxy materials before voting.
To view the proxy materials, and to obtain directions to attend the meeting, go to: www.proxydocs.com/OPK
To vote your proxy while visiting this site, you will need the 12 digit control number in the box below.
Under United States Securities and Exchange Commission rules, proxy materials do not have to be delivered in paper. Proxy materials can be distributed by making them available on the internet.


Have the 12 digit control number located in the shaded box above available when you access the website and follow the instructions.
If you want to receive a paper or e-mail copy of the proxy material, you must request one. There is no charge to you for requesting a copy. In order to receive a paper package in time for this year's meeting, you must make this request on or before June 12, 2023.



When requesting via the Internet or telephone you will need the 12 digit control number located in the shaded box above.
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Meeting Type: Annual Meeting of Stockholders Date: Thursday, June 22, 2023 Time: 10:00 AM, Eastern Time Place: Annual Meeting to be held live via the Internet - please visit
www.proxydocs.com/OPK for more details.
You must register to attend the meeting online and/or participate at www.proxydocs.com/OPK
SEE REVERSE FOR FULL AGENDA
FOR ON PROPOSALS 1 2 AND 4
THE BOARD RECOMMENDS THAT AN ADVISORY VOTE ON THE COMPENSATION FOR NAMED EXECUTIVE OFFICERS BE HELD EVERY 1 YEAR.
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