# EDGAR Filing Document

**Accession Number:** 0001672619
**File Stem:** 0001493152-23-006118
**Filing Date:** 2023-2
**Character Count:** 8553
**Document Hash:** 2a6b488a74b6999b3129fbd5f8592b55
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001493152-23-006118.hdr.sgml**: 20230227

**ACCESSION NUMBER**: 0001493152-23-006118

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20230223

**FILED AS OF DATE**: 20230227

**DATE AS OF CHANGE**: 20230227

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** COMMODORE CAPITAL LP
- **CENTRAL INDEX KEY:** 0001831942
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-39247
- **FILM NUMBER:** 23676555

**BUSINESS ADDRESS:**
- **STREET 1:** 444 MADISON AVENUE
- **STREET 2:** 35TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10022
- **BUSINESS PHONE:** 917-970-1730

**MAIL ADDRESS:**
- **STREET 1:** 444 MADISON AVENUE
- **STREET 2:** 35TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10022
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Enliven Therapeutics, Inc.
- **CENTRAL INDEX KEY:** 0001672619
- **STANDARD INDUSTRIAL CLASSIFICATION:** PHARMACEUTICAL PREPARATIONS [2834]
- **IRS NUMBER:** 000000000
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 6200 LOOKOUT ROAD
- **CITY:** BOULDER
- **STATE:** CO
- **ZIP:** 80301
- **BUSINESS PHONE:** 720-647-8519

**MAIL ADDRESS:**
- **STREET 1:** 6200 LOOKOUT ROAD
- **CITY:** BOULDER
- **STATE:** CO
- **ZIP:** 80301

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** IMARA Inc.
- **DATE OF NAME CHANGE:** 20160419

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

## FORM 4

### STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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

[ ] Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>COMMODORE CAPITAL LP<br><sub>(Last) (First) (Middle)</sub><br>444 MADISON AVENUE<br>35TH FLOOR<br><sub>(Street)</sub><br>NEW YORK, NY 10022<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2023-02-23 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [X] 10% Owner<br>[ ] Officer (give title below) [ ] Other (specify below)<br>_ _ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>Enliven Therapeutics, Inc. [ ELVN ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **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

---

|  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | 3. Transaction Code (V) | 3. Transaction Code (V) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | Code | V | Amount | (A) or (D) | Price | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| Common stock, par value $0.001 per share | 2023-02-23 |  | P |  | 621.75 | A | 22.072<sup>(1)</sup> | 718749 | I | By Commodore Capital Master LP<sup>(2)</sup> |
| Common stock, par value $0.001 per share | 2023-02-23 |  | J<sup>(3)</sup> |  | 729891<sup>(3)</sup> | A | <sup>(3)</sup> | 1448640 | I | By Commodore Capital Master LP<sup>(2)</sup> |

---

## Table II - Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | 4. Transaction Code (V) | 4. Transaction Code (V) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 6. Date Exercisable and Expiration Date | 6. Date Exercisable and Expiration Date | 7. Title and Amount of Underlying Securities | 7. Title and Amount of Underlying Securities | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

---

### Footnotes:

(1) The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $20.72 to $25.28 per share, inclusive, prior to the consummation of the Merger (as defined below). The Reporting Person undertakes to provide to Issuer any security holder of Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth herein.

(2) The shares are held directly by Commodore Capital Master LP ("Commodore Master"). Commodore Capital LP ("Commodore Capital") is the investment manager to Commodore Master. Michael Kramarz and Robert Egen Atkinson are the managing partners of Commodore Capital and exercise investment and dispositive power over the securities held by Commodore Master. Each of Commodore Capital, Dr. Kramarz and Dr. Atkinson disclaim beneficial ownership of such securities, except to the extent of their pecuniary interest therein. This report shall not be deemed an admission that Commodore Capital, Commodore Master, Dr. Kramarz and Dr. Atkinson or any other person is the beneficial owner of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

(3) On February 23, 2023, IMARA Inc. ("IMARA") completed a merger with Enliven Therapeutics, Inc. ("Legacy Enliven"), with Legacy Enliven surviving the merger as a direct wholly owned subsidiary of IMARA (the "Merger"). Prior to the Merger, the Reporting Person was a shareholder of both IMARA and Legacy Enliven. At the effective time of the Merger, the Reporting Person's 2,473,327 shares in Legacy Enliven converted into 729,891 shares of IMARA's Common Stock. In connection with the Merger, the Reporting Person also received a dividend of one Contingent Value Right ("CVR") for or each outstanding share of IMARA's Common Stock held on February 22, 2023. Accordingly, the Reporting Person received 2,872,513 CVRs, each representing the right to receive contingent payments upon the occurrence of certain events, as set forth in the Contingent Value Rights Agreement. As a result of the Merger, the Reporting Person is no longer a 10% owner of the Issuer as of the date of this Form 4.

**Remarks:**
The shares and prices reported on this Form 4 have been adjusted to reflect the consummation of the Merger and the Issuer's 1-for-4 reverse stock split of its Common Stock, effective February 23, 2023.

**Signature:** /s/ Michael Kramarz, Managing Partner  
**Date:** 2023-02-27

### 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.**