# EDGAR Filing Document

**Accession Number:** 0001796356
**File Stem:** 0001193125-26-049209
**Filing Date:** 2026-2
**Character Count:** 34794
**Document Hash:** 1799500ec626c251493c5c002a20aa0b
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-049209.hdr.sgml**: 20260212

**ACCESSION NUMBER**: 0001193125-26-049209

**CONFORMED SUBMISSION TYPE**: SCHEDULE 13D

**PUBLIC DOCUMENT COUNT**: 2

**FILED AS OF DATE**: 20260212

**DATE AS OF CHANGE**: 20260212

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Eikon Therapeutics, Inc.
- **CENTRAL INDEX KEY:** 0001861123
- **STANDARD INDUSTRIAL CLASSIFICATION:** BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
- **ORGANIZATION NAME:** 03 Life Sciences
- **EIN:** 842807586
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-95483
- **FILM NUMBER:** 26628156

**BUSINESS ADDRESS:**
- **STREET 1:** 230 HARRIET TUBMAN WAY
- **CITY:** MILLBRAE
- **STATE:** CA
- **ZIP:** 94030
- **BUSINESS PHONE:** 341-777-0566

**MAIL ADDRESS:**
- **STREET 1:** 230 HARRIET TUBMAN WAY
- **CITY:** MILLBRAE
- **STATE:** CA
- **ZIP:** 94030
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Column Group IV GP, LP
- **CENTRAL INDEX KEY:** 0001796356

**ORGANIZATION NAME:**
- **EIN:** 842801686
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D

**BUSINESS ADDRESS:**
- **STREET 1:** 1700 OWENS STREET, SUITE 500
- **CITY:** SAN FRANCISCO
- **STATE:** CA
- **ZIP:** 94158
- **BUSINESS PHONE:** 415-865-2050

**MAIL ADDRESS:**
- **STREET 1:** 1700 OWENS STREET, SUITE 500
- **CITY:** SAN FRANCISCO
- **STATE:** CA
- **ZIP:** 94158

### Attached PDF Documents

**Attachment 1:** `ck0000000000-ex99_1.pdf`

_No text found in this document._

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

## SCHEDULE 13D

### Under the Securities Exchange Act of 1934

**Eikon Therapeutics, Inc.**

*(Name of Issuer)*

**Common Stock, $0.0001 par value per share**

*(Title of Class of Securities)*

**86889P208**

*(CUSIP Number)*

**James Evangelista,  CFO**<br>The Column Group III, LP<br>1 Letterman Drive, Building D<br>San Francisco CA 94129<br>(415) 865-2050

*(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)*

**02/06/2026**

*(Date of Event Which Requires Filing of this Statement)*

| **CUSIP No.** | **86889P208** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**The Column Group IV GP, LP** | Name of reporting person<br>**The Column Group IV GP, LP** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**AF** | Source of funds (See Instructions)<br>**AF** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**DELAWARE** | Citizenship or place of organization<br>**DELAWARE** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**4460979.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**4460979.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**4460979.00** | Aggregate amount beneficially owned by each reporting person<br>**4460979.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**8.3%** | Percent of class represented by amount in Row (11)<br>**8.3%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**PN** | Type of Reporting Person (See Instructions)<br>**PN** | |

---

**Comment for Reporting Person:** Consists of (i) 4,312,139 shares of Common Stock held of record by TCG IV LP (as defined in Item 2(a) below) and (ii) 148,840 shares of Common Stock held of record by TCG IV-A LP (as defined in Item 2(a) below). TCG IV GP LP (as defined in Item 2(a) below) is the general partner of each of TCG IV LP and TCG IV-A LP and may be deemed to have voting, investment and dispositive power with respect to these securities. Peter Svennilson and Tim Kutzkey are the managing partners of TCG IV GP LP and may each be deemed to share voting, investment and dispositive power with respect to these securities.

This calculation is based upon 53,984,337 shares of Common Stock outstanding (assuming the underwriters do not exercise their option to purchase additional shares) as reported by the Issuer in its prospectus filed with the Securities and Exchange Commission on February 5, 2026 (the Prospectus).

| **CUSIP No.** | **86889P208** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**The Column Group IV, LP** | Name of reporting person<br>**The Column Group IV, LP** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**WC** | Source of funds (See Instructions)<br>**WC** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**DELAWARE** | Citizenship or place of organization<br>**DELAWARE** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**4312139.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**4312139.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**4312139.00** | Aggregate amount beneficially owned by each reporting person<br>**4312139.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**8.0%** | Percent of class represented by amount in Row (11)<br>**8.0%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**PN** | Type of Reporting Person (See Instructions)<br>**PN** | |

---

**Comment for Reporting Person:** Consists of 4,312,139 shares of Common Stock held of record by TCG IV LP. TCG IV GP LP is the general partner of TCG IV LP and may be deemed to have voting, investment and dispositive power with respect to these securities. Peter Svennilson and Tim Kutzkey are the managing partners of TCG IV GP LP and may each be deemed to share voting, investment and dispositive power with respect to these securities.

This calculation is based upon 53,984,337 shares of Common Stock outstanding (assuming the underwriters do not exercise their option to purchase additional shares) as reported in the Prospectus.

| **CUSIP No.** | **86889P208** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**The Column Group IV-A, LP** | Name of reporting person<br>**The Column Group IV-A, LP** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**WC** | Source of funds (See Instructions)<br>**WC** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**DELAWARE** | Citizenship or place of organization<br>**DELAWARE** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**148840.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**148840.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**148840.00** | Aggregate amount beneficially owned by each reporting person<br>**148840.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**0.3%** | Percent of class represented by amount in Row (11)<br>**0.3%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**PN** | Type of Reporting Person (See Instructions)<br>**PN** | |

---

**Comment for Reporting Person:** Consists of 148,840 shares of Common Stock held of record by TCG IV-A LP.  TCG IV GP LP is the general partner of TCG IV-A LP and may be deemed to have voting, investment and dispositive power with respect to these securities. Peter Svennilson and Tim Kutzkey are the managing partners of TCG IV GP LP and may each be deemed to share voting, investment and dispositive power with respect to these securities.

This calculation is based upon 53,984,337 shares of Common Stock outstanding (assuming the underwriters do not exercise their option to purchase additional shares) as reported in the Prospectus.

| **CUSIP No.** | **86889P208** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**The Column Group Opportunity III, LP** | Name of reporting person<br>**The Column Group Opportunity III, LP** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**WC** | Source of funds (See Instructions)<br>**WC** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**DELAWARE** | Citizenship or place of organization<br>**DELAWARE** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**1892733.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**1892733.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**1892733.00** | Aggregate amount beneficially owned by each reporting person<br>**1892733.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**3.5%** | Percent of class represented by amount in Row (11)<br>**3.5%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**PN** | Type of Reporting Person (See Instructions)<br>**PN** | |

---

**Comment for Reporting Person:** Consists of (i) 1,319,164 shares of Common Stock held of record by TCG Opportunity III LP (as defined in Item 2(a)) and (ii) 573,569 shares underlying warrants to purchase shares of Common Stock held by TCG Opportunity III LP which are exercisable within 60 days of this Statement. TCG Opportunity III GP LP (as defined in Item 2(a)) is the general partner of TCG Opportunity III LP and may be deemed to have voting, investment and dispositive power with respect to these securities. TCG Opportunity III GP LLC (as defined in Item 2(a)) is the general partner of TCG Opportunity III GP LP and the ultimate general partner of TCG Opportunity III LP and may be deemed to have voting, investment and dispositive power with respect to these securities. Peter Svennilson and Tim Kutzkey are the managing members of TCG Opportunity III GP LLC and may each be deemed to share voting, investment and dispositive power with respect to these securities.

This calculation is based upon 54,557,906 shares of Common Stock, which is the sum of (i) 53,984,337 shares of Common Stock outstanding (assuming the underwriters do not exercise their option to purchase additional shares) as reported in the Prospectus, plus (ii) 573,569 shares underlying warrants to purchase shares of Common Stock held by TCG Opportunity III LP which are exercisable within 60 days of this Statement.

| **CUSIP No.** | **86889P208** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**The Column Group Opportunity III GP, LP** | Name of reporting person<br>**The Column Group Opportunity III GP, LP** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**AF** | Source of funds (See Instructions)<br>**AF** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**DELAWARE** | Citizenship or place of organization<br>**DELAWARE** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**1892733.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**1892733.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**1892733.00** | Aggregate amount beneficially owned by each reporting person<br>**1892733.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**3.5%** | Percent of class represented by amount in Row (11)<br>**3.5%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**PN** | Type of Reporting Person (See Instructions)<br>**PN** | |

---

**Comment for Reporting Person:** Consists of (i) 1,319,164 shares of Common Stock held of record by TCG Opportunity III LP and (ii) 573,569 shares underlying warrants to purchase shares of Common Stock held by TCG Opportunity III LP which are exercisable within 60 days of this Statement. TCG Opportunity III GP LP is the general partner of TCG Opportunity III LP and may be deemed to have voting, investment and dispositive power with respect to these securities. TCG Opportunity III GP LLC is the general partner of TCG Opportunity III GP LP and the ultimate general partner of TCG Opportunity III LP and may be deemed to have voting, investment and dispositive power with respect to these securities. Peter Svennilson and Tim Kutzkey are the managing members of TCG Opportunity III GP LLC and may each be deemed to share voting, investment and dispositive power with respect to these securities.

This calculation is based upon 54,557,906 shares of Common Stock, which is the sum of (i) 53,984,337 shares of Common Stock outstanding (assuming the underwriters do not exercise their option to purchase additional shares) as reported in the Prospectus, plus (ii) 573,569 shares underlying warrants to purchase shares of Common Stock held by TCG Opportunity III LP which are exercisable within 60 days of this Statement.

| **CUSIP No.** | **86889P208** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**TCG Opportunity III GP, LLC** | Name of reporting person<br>**TCG Opportunity III GP, LLC** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**AF** | Source of funds (See Instructions)<br>**AF** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**DELAWARE** | Citizenship or place of organization<br>**DELAWARE** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**1892733.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**1892733.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**1892733.00** | Aggregate amount beneficially owned by each reporting person<br>**1892733.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**3.5%** | Percent of class represented by amount in Row (11)<br>**3.5%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**OO** | Type of Reporting Person (See Instructions)<br>**OO** | |

---

**Comment for Reporting Person:** Consists of (i) 1,319,164 shares of Common Stock held of record by TCG Opportunity III LP and (ii) 573,569 shares underlying warrants to purchase shares of Common Stock held by TCG Opportunity III LP which are exercisable within 60 days of this Statement. TCG Opportunity III GP LP is the general partner of TCG Opportunity III LP and may be deemed to have voting, investment and dispositive power with respect to these securities. TCG Opportunity III GP LLC is the general partner of TCG Opportunity III GP LP and the ultimate general partner of TCG Opportunity III LP and may be deemed to have voting, investment and dispositive power with respect to these securities. Peter Svennilson and Tim Kutzkey are the managing members of TCG Opportunity III GP LLC and may each be deemed to share voting, investment and dispositive power with respect to these securities.

This calculation is based upon 54,557,906 shares of Common Stock, which is the sum of (i) 53,984,337 shares of Common Stock outstanding (assuming the underwriters do not exercise their option to purchase additional shares) as reported in the Prospectus, plus (ii) 573,569 shares underlying warrants to purchase shares of Common Stock held by TCG Opportunity III LP which are exercisable within 60 days of this Statement.

| **CUSIP No.** | **86889P208** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Tim Kutzkey** | Name of reporting person<br>**Tim Kutzkey** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**AF** | Source of funds (See Instructions)<br>**AF** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**X1** | Citizenship or place of organization<br>**X1** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**6353712.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**6353712.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**6353712.00** | Aggregate amount beneficially owned by each reporting person<br>**6353712.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**11.6%** | Percent of class represented by amount in Row (11)<br>**11.6%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

**Comment for Reporting Person:** Consists of (i) 4,312,139 shares of Common Stock held of record by TCG IV LP, (ii) 148,840 shares of Common Stock held of record by TCG IV-A LP, (iii) 1,319,164 shares of Common Stock held of record by TCG Opportunity III LP and (iv) 573,569 shares underlying warrants to purchase shares of Common Stock held by TCG Opportunity III LP which are exercisable within 60 days of this Statement. TCG IV GP LP is the general partner of each of TCG IV LP and TCG IV-A LP and may be deemed to have voting, investment and dispositive power with respect to these securities. Peter Svennilson and Tim Kutzkey are the managing members of TCG IV GP LP and may each be deemed to share voting, investment and dispositive power with respect to these securities. TCG Opportunity III GP LP is the general partner of TCG Opportunity III LP and may be deemed to have voting, investment and dispositive power with respect to these securities. TCG Opportunity III GP LLC is the general partner of TCG Opportunity III GP LP and the ultimate general partner of TCG Opportunity III LP and may be deemed to have voting, investment and dispositive power with respect to these securities. Peter Svennilson and Tim Kutzkey are the managing members of TCG Opportunity III GP LLC and may each be deemed to share voting, investment and dispositive power with respect to these securities.

This calculation is based upon 54,557,906 shares of Common Stock, which is the sum of (i) 53,984,337 shares of Common Stock outstanding (assuming the underwriters do not exercise their option to purchase additional shares) as reported in the Prospectus, plus (ii) 573,569 shares underlying warrants to purchase shares of Common Stock held by TCG Opportunity III LP which are exercisable within 60 days of this Statement.

| **CUSIP No.** | **86889P208** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Peter Svennilson** | Name of reporting person<br>**Peter Svennilson** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**AF** | Source of funds (See Instructions)<br>**AF** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**V7** | Citizenship or place of organization<br>**V7** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**6353712.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**6353712.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**6353712.00** | Aggregate amount beneficially owned by each reporting person<br>**6353712.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**11.6%** | Percent of class represented by amount in Row (11)<br>**11.6%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

**Comment for Reporting Person:** Consists of (i) 4,312,139 shares of Common Stock held of record by TCG IV LP, (ii) 148,840 shares of Common Stock held of record by TCG IV-A LP, (iii) 1,319,164 shares of Common Stock held of record by TCG Opportunity III LP and (iv) 573,569 shares underlying warrants to purchase shares of Common Stock held by TCG Opportunity III LP which are exercisable within 60 days of this Statement. TCG IV GP LP is the general partner of each of TCG IV LP and TCG IV-A LP and may be deemed to have voting, investment and dispositive power with respect to these securities. Peter Svennilson and Tim Kutzkey are the managing members of TCG IV GP LP and may each be deemed to share voting, investment and dispositive power with respect to these securities. TCG Opportunity III GP LP is the general partner of TCG Opportunity III LP and may be deemed to have voting, investment and dispositive power with respect to these securities. TCG Opportunity III GP LLC is the general partner of TCG Opportunity III GP LP and the ultimate general partner of TCG Opportunity III LP and may be deemed to have voting, investment and dispositive power with respect to these securities. Peter Svennilson and Tim Kutzkey are the managing members of TCG Opportunity III GP LLC and may each be deemed to share voting, investment and dispositive power with respect to these securities.

This calculation is based upon 54,557,906 shares of Common Stock, which is the sum of (i) 53,984,337 shares of Common Stock outstanding (assuming the underwriters do not exercise their option to purchase additional shares) as reported in the Prospectus, plus (ii) 573,569 shares underlying warrants to purchase shares of Common Stock held by TCG Opportunity III LP which are exercisable within 60 days of this Statement.

**Item 1. Security and Issuer**

**(a) Title of Class of Securities:**
Common Stock, $0.0001 par value per share

**(b) Name of Issuer:**
Eikon Therapeutics, Inc.

**(c) Address of Issuer's Principal Executive Offices:**
230 Harriet Tubman Way, Millbrae, CA, 94030

**Item 4. Purpose of Transaction**

The information set forth in Item 3 of this Statement is incorporated herein by reference. The Reporting Persons hold the securities of the Issuer for general investment purposes. The Reporting Persons may, from time to time, depending on prevailing market, economic and other conditions, acquire additional shares of Common Stock or other securities of the Issuer, dispose of any such securities, or engage in discussions with the Issuer concerning such acquisitions or dispositions or further investments in the Issuer. The Reporting Persons intend to review their investment in the Issuer on a continuing basis and, depending upon the price and availability of shares of Common Stock or other securities of the Issuer, subsequent developments affecting the Issuer, the Issuer's business and prospects, other investment and business opportunities available to the Reporting Persons, general stock market and economic conditions, tax considerations and other factors considered relevant, may decide at any time to increase or to decrease the size of their investment in the Issuer in the open market, in privately negotiated transactions, pursuant to 10b5-1 trading plans or otherwise.

Except as set forth above, the Reporting Persons have no present plans or intentions which would result in or relate to any of the transactions described in subparagraphs (a) through (j) of Item 4 of Schedule 13D.

**Item 5. Interest in Securities of the Issuer**

**(a)**
See Items 7-11 of the cover pages of this Statement and Item 2 above. Except to the extent of his, hers, or its pecuniary interest therein, each Reporting Person disclaims beneficial ownership of such shares of Common Stock, except for the shares, if any, such Reporting Person holds of record.

**(b)**
See Items 7-11 of the cover pages of this Statement and Item 2 above. Except to the extent of his, hers, or its pecuniary interest therein, each Reporting Person disclaims beneficial ownership of such shares of Common Stock, except for the shares, if any, such Reporting Person holds of record.

**(c)**
Except as reported in this Statement, none of the Reporting Persons has effected any transactions in the Issuer's securities within the past 60 days.

**Item 6. Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer.**

The Reporting Persons and certain of the Issuer's other investors entered into the Amended and Restated Investors' Rights Agreement, dated February 14, 2025 (the Rights Agreement). The stockholders party thereto are entitled to certain registration rights, including the right to demand that the Issuer file a registration statement or request that their shares be covered by a registration statement that the Issuer is otherwise filing. The terms and provisions of the Rights Agreement are described more fully in the Issuer's Registration Statement on Form S-1 (File No. 333-292633) and declared effective by the Commission on January 30, 2026 (the Registration Statement), and the above summary is qualified by reference to such description and the full text of the Rights Agreement, which is filed as Exhibit 2 to this Statement and is incorporated herein by reference.

In connection with the Offering, each of the Reporting Persons entered into lock-up agreements, pursuant to which the Reporting Persons have agreed, subject to certain exceptions, not to sell, transfer or otherwise convey any of the Issuer's securities held by each of the Reporting Persons for 180 days following the date of the underwriting agreement for the Offering. The terms and provisions of such lock-up agreements are described more fully in the Registration Statement, and the above summary is qualified by reference to such description and the full text of the lock-up agreement, a form of which is filed as Exhibit 3 to this Statement as attached as Exhibit A to the Underwriting Agreement filed with to the Registration Statement and is incorporated herein by reference.

### 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.

**Reporting Person:** The Column Group IV GP, LP

**Signature:** /s/ James Evangelista

**Name/Title:** James Evangelista, Attorney-in-Fact

**Date:** 02/12/2026

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.

**Reporting Person:** The Column Group IV, LP

**Signature:** /s/ James Evangelista

**Name/Title:** James Evangelista, Attorney-in-Fact

**Date:** 02/12/2026

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.

**Reporting Person:** The Column Group IV-A, LP

**Signature:** /s/ James Evangelista

**Name/Title:** James Evangelista, Attorney-in-Fact

**Date:** 02/12/2026

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.

**Reporting Person:** The Column Group Opportunity III, LP

**Signature:** /s/ James Evangelista

**Name/Title:** James Evangelista, Attorney-in-Fact

**Date:** 02/12/2026

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.

**Reporting Person:** The Column Group Opportunity III GP, LP

**Signature:** /s/ James Evangelista

**Name/Title:** James Evangelista, Attorney-in-Fact

**Date:** 02/12/2026

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.

**Reporting Person:** TCG Opportunity III GP, LLC

**Signature:** /s/ James Evangelista

**Name/Title:** James Evangelista, Attorney-in-Fact

**Date:** 02/12/2026

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.

**Reporting Person:** Tim Kutzkey

**Signature:** /s/ James Evangelista

**Name/Title:** James Evangelista, as Attorney-in-Fact for Tim Kutzkey

**Date:** 02/12/2026

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.

**Reporting Person:** Peter Svennilson

**Signature:** /s/ James Evangelista

**Name/Title:** James Evangelista, as Attorney-in-Fact for Peter Svennilson

**Date:** 02/12/2026