Thant v. Rain Oncology, Inc., et al.,

This form allows you to file your claim online securely through our website. If you wish to file a paper claim or review any of the documents related to this case, please click the Notice of Pendency and Proposed Settlement of Class Action and Proof of Claim and Release Form link found in the Important Documents section of the case page.

Before you begin:
Please have the following items ready to go before you begin filing your online claim form; it will make the process easier for you.
• You should have copies of your statements for the relevant date ranges so that you can enter your transactions.
• You should have copies of these statements scanned and saved on your computer so that you can upload them as proof. We prefer files in PDF format, but we can accept most file formats.

Please read this important information about the case. It provides important details you should understand before you file your claim.

Please enter your current contact information to assist us in identifying your claim and contacting you for additional information and updates.

We recommend you turn off auto-fill settings in your browser to ensure incorrect information is not added by mistake. You will receive a confirmation email that we received your claim at the email address you provide.

Important: Double-check the information before you click Next, as you will not have the opportunity to review it again prior to submitting.

Please read the instructions carefully and enter your relevant transactions. You must ensure that the number of shares in Beginning holdings, plus purchases/acquisitions, minus sales, minus ending holdings equals zero. This ensures that all relevant transactions are accounted for. The form will not allow you to continue until all outstanding shares are accounted for.

Please drag and drop your files or click Select Files to choose the documents you will provide as proof of your transactions and holdings.

Trade confirmations and monthly statements from your brokerage firm are typically the best documents to use as proof.

Once a file upload completes, the file name will appear below the upload box. You may click the trash can icon to remove a file if it was added in error.

Please read the Certification carefully. By typing your name and date in the fields provided, you are signing the document and certifying that all information submitted is true, correct, and complete.

Within a few minutes of submitting your claim, you will receive a confirmation email containing your Form ID along with the information you submitted.

If you need to amend your claim, please reference the Form ID provided. If you do not receive the confirmation email, be sure to check your spam or junk folder.

Deadline for Submission: April 20, 2026

PROOF OF CLAIM AND RELEASE FORM

To be eligible to receive a share of the Net Settlement Fund in connection with the Settlement of this Action, you must complete and sign this Proof of Claim and Release Form (“Claim Form”) and mail it by first-class mail to the address below, or submit it online at www.RainOncologySettlement.com, with supporting documentation, postmarked (if mailed) or received no later than April 20, 2026.

Mail To:

Failure to submit your Claim Form by the date specified will subject your claim to rejection and may preclude you from being eligible to receive any money in connection with the Settlement.

Do not mail or deliver your Claim Form to the Court, the Parties to the Action, or their counsel. Submit your Claim Form only to the Claims Administrator at the address set forth above.

GENERAL INSTRUCTIONS

1. It is important that you completely read the Notice of Pendency and Proposed Settlement of Class Action (the “Notice”) that accompanies this Claim Form, including the Plan of Allocation of the Net Settlement Fund set forth in the Notice. The Notice is also available on the Settlement website at: www.RainOncologySettlement.com . The Notice describes the proposed Settlement, how Class Members are affected by the Settlement, and the manner in which the Net Settlement Fund will be distributed if the Settlement and Plan of Allocation are approved by the Court. The Notice also contains the definitions of many of the defined terms (which are indicated by initial capital letters) used in this Claim Form. By signing and submitting this Claim Form, you will be certifying that you have read and that you understand the Notice, including the terms of the releases described therein and provided for herein.
2. By submitting this Claim Form, you will be making a request to share in the proceeds of the Settlement described in the Notice. If you are not a Class Member (see the definition of the Class on page 5 of the Notice), do not submit a Claim Form. You may not, directly or indirectly, participate in the Settlement if you are not a Class Member. Thus, if you are excluded from the Class, any Claim Form that you submit, or that may be submitted on your behalf, will not be accepted.
3. Submission of this Claim Form does not guarantee that you will share in the proceeds of the Settlement. The distribution of the Net Settlement Fund will be governed by the Plan of Allocation set forth in the Notice or by such other plan of allocation as the Court approves.
4. On the Schedule of Transactions in Part III of this Claim Form, provide all of the requested information with respect to your holdings, purchases, acquisitions, and sales of Rain Oncology Inc. (“Rain”) common stock (symbol: RAIN) and whether such transactions resulted in a profit or a loss. Failure to report all transaction and holding information during the requested time period may result in the rejection of your claim.
5. Please note: Only shares of Rain common stock purchased between April 23, 2021 and May 19, 2023, inclusive, are eligible under the Settlement and the proposed Plan of Allocation set forth in the Notice.
6. You are required to submit genuine and sufficient documentation for all of your transactions in and holdings of Rain common stock set forth in the Schedule of Transactions in Part III. Documentation may consist of copies of brokerage confirmation slips or monthly brokerage account statements, or an authorized statement from your broker containing the transactional and holding information found in a broker confirmation slip or account statement. The Parties and the Claims Administrator do not independently have information about your investments. IF SUCH DOCUMENTS ARE NOT IN YOUR POSSESSION, PLEASE OBTAIN COPIES OF THE DOCUMENTS OR EQUIVALENT DOCUMENTS FROM YOUR BROKER. FAILURE TO SUPPLY THIS DOCUMENTATION MAY RESULT IN THE REJECTION OF YOUR CLAIM. DO NOT SEND ORIGINAL DOCUMENTS.
7. Please keep a copy of all documents that you send to the Claims Administrator. Also, do not highlight any portion of the Claim Form or any supporting documents.
8. Use Part I of this Claim Form entitled “CLAIMANT INFORMATION” to identify the beneficial owner(s) of Rain common stock. The complete name(s) of the beneficial owner(s) must be entered. If you held the Rain common stock in your own name, you were the beneficial owner as well as the record owner. If, however, your shares of Rain common stock were registered in the name of a third party, such as a nominee or brokerage firm, you were the beneficial owner of these shares, but the third party was the record owner. The beneficial owner, not the record owner, must sign this Claim Form to be eligible to participate in the Settlement. If there were joint beneficial owners, each must sign this Claim Form and their names must appear as “Claimants” in Part I of this Claim Form.
9. One Claim should be submitted for each separate legal entity or separately managed account. Separate Claim Forms should be submitted for each separate legal entity (e.g., an individual should not combine his or her IRA transactions with transactions made solely in the individual’s name). Generally, a single Claim Form should be submitted on behalf of one legal entity including all holdings and transactions made by that entity on one Claim Form. However, if a single person or legal entity had multiple accounts that were separately managed, separate Claim Forms may be submitted for each such account. The Claims Administrator reserves the right to request information on all the holdings and transactions in Rain common stock made on behalf of a single beneficial owner.
10. Agents, executors, administrators, guardians, and trustees must complete and sign the Claim Form on behalf of persons represented by them, and they must:

    (a) expressly state the capacity in which they are acting;

    (b) identify the name, account number, Social Security Number (or other taxpayer identification number), address, and telephone number of the beneficial owner of (or other person or entity on whose behalf they are acting with respect to) the Rain common stock; and

    (c) furnish herewith evidence of their authority to bind to the Claim Form the person or entity on whose behalf they are acting. (Authority to complete and sign a Claim Form cannot be established by stockbrokers demonstrating only that they have discretionary authority to trade securities in another person’s accounts.)

11. By submitting a signed Claim Form, you will be swearing that you:

    (a) own(ed) the Rain common stock you have listed in the Claim Form; or

    (b) are expressly authorized to act on behalf of the owner thereof.

12. By submitting a signed Claim Form, you will be swearing to the truth of the statements contained therein and the genuineness of the documents attached thereto, subject to penalties of perjury under the laws of the United States of America. The making of false statements, or the submission of forged or fraudulent documentation, will result in the rejection of your claim and may subject you to civil liability or criminal prosecution.
13. Payments to eligible Authorized Claimants will be made only if the Court approves the Settlement, after any appeals are resolved, and after the completion of all claims processing.
14. PLEASE NOTE: As set forth in the Plan of Allocation, each Authorized Claimant shall receive his, her, or its pro rata share of the Net Settlement Fund. If the prorated payment to any Authorized Claimant calculates to less than $10.00, it will not be included in the calculation, and no distribution will be made to that Authorized Claimant.
15. If you have questions concerning the Claim Form, or need additional copies of the Claim Form or the Notice, you may contact the Claims Administrator, Strategic Claims Services, at the above address, by email at info@strategicclaims.net, or by toll-free phone at (866) 274-4004, or you can visit the website, www.RainOncologySettlement.com , where copies of the Claim Form and Notice are available for downloading.
16. NOTICE REGARDING INSTITUTIONAL FILERS: Representatives with authority to file on behalf of (a) accounts of multiple Settlement Class Members and/or (b) institutional accounts with large numbers of transactions (“Representative Filers”) must submit information regarding their transactions in an electronic spreadsheet format. If you are a Representative Filer, to obtain the mandatory electronic filing requirements and file layout, you may visit the Settlement website at www.RainOncologySettlement.com. or you may email the Claims Administrator’s electronic filing department at efile@strategicclaims.net. Any file not in accordance with the required electronic filing format will be subject to rejection. The complete name of the beneficial owner of the securities must be entered where called for (see ¶ 8 above). No electronic files will be considered to have been submitted unless the Claims Administrator issues an email confirming receipt of your submission. Do not assume that your file has been received until you receive that email. If you do not receive such an email within 10 days of your submission, you should contact the electronic filing department at efile@strategicclaims.net to inquire about your file and confirm it was received.
17. 17. NOTICE REGARDING ONLINE FILING: Claimants who are not Representative Filers may submit their claims online using the electronic version of the Claim Form hosted at www.RainOncologySettlement.com. If you are not acting as a Representative Filer, you do not need to contact the Claims Administrator prior to filing; you will receive an automated e-mail confirming receipt once your Claim Form has been submitted. If you are unsure if you should submit your claim as a Representative Filer, please contact the Claims Administrator at info@strategicclaims.net or (866) 274-4004. If you are not a Representative Filer, but your claim contains a large number of transactions, the Claims Administrator may request that you also submit an electronic spreadsheet showing your transactions to accompany your Claim Form.