# EDGAR Filing Document

**Accession Number:** 0001739410
**File Stem:** 0000899243-23-003154
**Filing Date:** 2023-2
**Character Count:** 8159
**Document Hash:** 72e036a1eff90af4bc9d516971fcf65e
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000899243-23-003154.hdr.sgml**: 20230201

**ACCESSION NUMBER**: 0000899243-23-003154

**CONFORMED SUBMISSION TYPE**: 3

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20230201

**FILED AS OF DATE**: 20230201

**DATE AS OF CHANGE**: 20230201

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Lieber Jonathan I
- **CENTRAL INDEX KEY:** 0001350090

**FILING VALUES:**
- **FORM TYPE:** 3
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-40693
- **FILM NUMBER:** 23578191

**MAIL ADDRESS:**
- **STREET 1:** C/O HISTOGENICS CORPORATION
- **STREET 2:** 830 WINTER STREET #3
- **CITY:** WALTHAM
- **STATE:** MA
- **ZIP:** 02451
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Rallybio Corp
- **CENTRAL INDEX KEY:** 0001739410
- **STANDARD INDUSTRIAL CLASSIFICATION:** PHARMACEUTICAL PREPARATIONS [2834]
- **IRS NUMBER:** 851083789
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 234 CHURCH STREET
- **STREET 2:** SUITE 1020
- **CITY:** NEW HAVEN
- **STATE:** CT
- **ZIP:** 06510
- **BUSINESS PHONE:** 203- 859-3820

**MAIL ADDRESS:**
- **STREET 1:** 234 CHURCH STREET
- **STREET 2:** SUITE 1020
- **CITY:** NEW HAVEN
- **STATE:** CT
- **ZIP:** 06510

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Rallybio Holdings, LLC
- **DATE OF NAME CHANGE:** 20180502

## Ex-24

```
<PRE>
                                                                      Exhibit 24

                           LIMITED POWER OF ATTORNEY

	The undersigned hereby constitutes and appoints Martin W. Mackay and Michael
 Greco, with full power of substitution, as the undersigned's true and lawful
attorney-in-fact to:

    (1)    prepare, execute in the undersigned's name and on the undersigned's
           behalf, and submit to the U.S. Securities and Exchange Commission
           (the "SEC") a Form ID, including amendments thereto, and any other
           documents necessary or appropriate to obtain codes and passwords
           enabling the undersigned to make electronic filings with the SEC of
           reports required by Section 16(a) of the Securities Exchange Act of
           1934, as amended, or any rule or regulation of the SEC;

    (2)    execute for and on behalf of the undersigned, in the undersigned's
           capacity as officer and/or director of Rallybio Corporation (the
           "Company"), Forms 3, 4, 5 and any Schedules 13D or 13G in accordance
           with Section 16(a) of the Securities Exchange Act of 1934, as
           amended, and the rules thereunder;

    (3)    do and perform any and all acts for and on behalf of the undersigned
           that may be necessary or desirable to complete and execute any such
           Form 3, 4, or 5 or Schedule 13D or 13G, complete and execute any
           amendment or amendments thereto, and timely file such form with the
           SEC and any stock exchange or similar authority; and

    (4)    take any other action of any type whatsoever in connection with the
           foregoing that, in the opinion of each such attorney-in-fact, may be
           of benefit to, in the best interest of, or legally required by, the
           undersigned, it being understood that the documents executed by each
           such attorney-in-fact on behalf of the undersigned pursuant to this
           Power of Attorney shall be in such form and shall contain such terms
           and conditions as each such attorney-in-fact may approve in each such
           attorney-in-fact's discretion.

	The undersigned hereby grants to each such attorney-in-fact full power and
authority to do and perform any and every act and thing whatsoever requisite,
necessary, or proper to be done in the exercise of any of the rights and powers
herein granted, as fully to all intents and purposes as the undersigned might or
could do if personally present, with full power of substitution or revocation,
hereby ratifying and confirming all that each such attorney-in-fact, or each
such attorney-in-fact's substitute or substitutes, shall lawfully do
or cause to be done by virtue of this power of attorney and the rights and
powers herein granted.  The undersigned acknowledges that each foregoing
attorney-in-fact, in serving in such capacity at the request of the undersigned,
are not assuming, nor is the Company assuming, any of the undersigned's
responsibilities to comply with Section 16 of the Securities Exchange Act of
1934, as amended.

       This Power of Attorney shall remain in full force and effect until the
undersigned is no longer required to file Forms 3, 4, 5, and any Schedules 13D
or 13G with respect to the undersigned's holdings of and transactions in
securities issued by the Company, unless earlier revoked by the undersigned in a
signed writing delivered to each foregoing attorney-in-fact.

                  [Remainder of page intentionally left blank]

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to
be executed as of this 31st day of January, 2023.

                        /s/ Jonathan Lieber
                        ---------------------------
                        Name: Jonathan Lieber

</PRE>
```

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 3

### INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Lieber Jonathan I<br><sub>(Last) (First) (Middle)</sub><br>C/O RALLYBIO CORPORATION<br>234 CHURCH STREET, SUITE 1020<br><sub>(Street)</sub><br>NEW HAVEN, CT 06510<br><sub>(City) (State) (Zip)</sub> | **3. Issuer Name and Ticker or Trading Symbol**<br>Rallybio Corp [ RLYB ] | **5. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  |
| **2. Date of Event Requiring Statement (Month/Day/Year)**<br>2023-02-01 | **4. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director   [ ] 10% Owner<br>[X] Officer (give title below)   [ ] Other (specify below)<br>_See Remarks_ | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities Beneficially Owned

---

|  |  |  |  |
| --- | --- | --- | --- |
| 1. Title of Security | 2. Amount of Securities Beneficially Owned | 3. Ownership Form | 4. Nature of Indirect Beneficial Ownership |

---

## Table II - Derivative Securities Beneficially Owned

---

|  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 3. Title and Amount of Underlying Securities | 3. Title and Amount of Underlying Securities | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
|  |  |  |  |  |  |  |  |

---

**Remarks:**
Chief Financial Officer and Treasurer

Exhibit List: Exhibit 24 - Power of Attorney

**Signature:** /s/ Michael Greco, Attorney-in-Fact  
**Date:** 2023-02-01

### Remarks:

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

**Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.**