Column Group discloses 11.6% Eikon Therapeutics stake after IPO (EIKN)

Rhea-AI Filing Summary

The Column Group investment entities and principals have disclosed a large ownership position in Eikon Therapeutics, Inc. common stock. Together, they report beneficial ownership of 6,353,712 shares, representing 11.6% of Eikon’s outstanding common stock.

The stake is held through multiple venture funds and includes shares underlying warrants exercisable within 60 days. The position stems from preferred stock investments made between 2019 and 2025 that converted into common stock at Eikon’s initial public offering, plus additional common shares purchased in the IPO at $18 per share.

The investors describe their holdings as for general investment purposes and may increase or decrease their position over time. They also hold registration rights under an investors’ rights agreement and have agreed to 180-day lock-up restrictions following the IPO underwriting agreement.

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
The Column Group III, LP, 1 Letterman Drive, Building D
San Francisco, CA, 94129
(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)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box.

The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

SCHEDULE 13D

CUSIP No. 86889P208

1

Name of reporting person

The Column Group IV GP, LP

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

AF

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 4,460,979.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 4,460,979.00

11

Aggregate amount beneficially owned by each reporting person

4,460,979.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

8.3 %

14

Type of Reporting Person (See Instructions)

PN

Comment for Type of 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).

SCHEDULE 13D

CUSIP No. 86889P208

1

Name of reporting person

The Column Group IV, LP

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

WC

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 4,312,139.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 4,312,139.00

11

Aggregate amount beneficially owned by each reporting person

4,312,139.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

8.0 %

14

Type of Reporting Person (See Instructions)

PN

Comment for Type of 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.

SCHEDULE 13D

CUSIP No. 86889P208

1

Name of reporting person

The Column Group IV-A, LP

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

WC

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 148,840.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 148,840.00

11

Aggregate amount beneficially owned by each reporting person

148,840.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

0.3 %

14

Type of Reporting Person (See Instructions)

PN

Comment for Type of 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.

SCHEDULE 13D

CUSIP No. 86889P208

1

Name of reporting person

The Column Group Opportunity III, LP

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

WC

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 1,892,733.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 1,892,733.00

11

Aggregate amount beneficially owned by each reporting person

1,892,733.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

3.5 %

14

Type of Reporting Person (See Instructions)

PN

Comment for Type of 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.

SCHEDULE 13D

CUSIP No. 86889P208

1

Name of reporting person

The Column Group Opportunity III GP, LP

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

AF

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 1,892,733.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 1,892,733.00

11

Aggregate amount beneficially owned by each reporting person

1,892,733.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

3.5 %

14

Type of Reporting Person (See Instructions)

PN

Comment for Type of 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.

SCHEDULE 13D

CUSIP No. 86889P208

1

Name of reporting person

TCG Opportunity III GP, LLC

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

AF

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 1,892,733.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 1,892,733.00

11

Aggregate amount beneficially owned by each reporting person

1,892,733.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

3.5 %

14

Type of Reporting Person (See Instructions)

OO

Comment for Type of 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.

SCHEDULE 13D

CUSIP No. 86889P208

1

Name of reporting person

Tim Kutzkey

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

AF

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 6,353,712.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 6,353,712.00

11

Aggregate amount beneficially owned by each reporting person

6,353,712.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

11.6 %

14

Type of Reporting Person (See Instructions)

IN

Comment for Type of 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.

SCHEDULE 13D

CUSIP No. 86889P208

1

Name of reporting person

Peter Svennilson

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

AF

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

SWEDEN

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 6,353,712.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 6,353,712.00

11

Aggregate amount beneficially owned by each reporting person

6,353,712.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

11.6 %

14

Type of Reporting Person (See Instructions)

IN

Comment for Type of 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.

SCHEDULE 13D

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, CALIFORNIA , 94030.
Item 2.	Identity and Background
(a)	This Statement is being filed by The Column Group IV, LP (TCG IV LP), The Column Group IV-A, LP (TCG IV-A LP), The Column Group IV GP, LP (TCG IV GP LP), The Column Group Opportunity III, LP (TCG Opportunity III LP), The Column Group Opportunity III GP, LP (TCG Opportunity III GP LP), TCG Opportunity III GP, LLC (TCG Opportunity III GP LLC, together with TCG IV LP, TCG IV-A LP, TCG IV GP LP, TCG Opportunity III LP, and TCG Opportunity III GP LP, the Reporting Entities), Tim Kutzkey and Peter Svennilson (the Reporting Individuals). The Reporting Entities and Reporting Individuals are collectively referred to as the Reporting Persons. The agreement among the Reporting Persons to file jointly in accordance with the provisions of Rule 13d-1(k)(1) under the Act is attached hereto as Exhibit 1. Each Reporting Person disclaims beneficial ownership of all securities reported in this Statement except to the extent of such Reporting Person's pecuniary interest therein, other than those securities reported herein as being held directly by such Reporting Person
(b)	The address of the principal offices of each Reporting Person is 1 Letterman Drive, Building D, Suite M-900, San Francisco, CA 94129.
(c)	Each of TCG IV LP, TCG IV-A LP and TCG Opportunity III LP is a venture capital investment entity. TCG IV GP LP is the general partner of each of TCG IV LP and TCG IV-A LP. TCG Opportunity III GP LP is the general partner of TCG Opportunity III LP. 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. Tim Kutzkey and Peter Svennilson are the managing partners of TCG IV GP LP and the managing members of TCG Opportunity III GP LLC, and are each engaged through venture capital investment entities in acquiring, holding and disposing of interests in various companies for investment purposes.
(d)	During the past five years, none of the Reporting Persons have been convicted in a criminal proceeding (excluding traffic violations or similar misdemeanors).
(e)	None of the Reporting Persons are, nor during the last five years have been, a party to a civil proceeding of a judicial or administrative body of competent jurisdiction and as a result of such proceeding was or is subject to a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities laws or finding any violation with respect to such laws.
(f)	Each of TCG IV GP LP, TCG IV LP, TCG IV-A LP, TCG Opportunity III LP and TCG Opportunity III GP LP is a limited partnership organized under the laws of the State of Delaware. TCG Opportunity III GP LLC is a limited company organized under the laws of the State of Delaware. Dr. Kutzkey is a citizen of the United States of America. Mr. Svennilson is a citizen of Sweden.
Item 3.	Source and Amount of Funds or Other Consideration
	In September 2019, TCG IV LP purchased an aggregate of 9,670,000 shares of the Issuer's Series A Preferred Stock for a purchase price of $1.00 per share and an aggregate purchase price of approximately $9.67 million. In September 2019, TCG IV-A LP purchased an aggregate of 330,000 shares of the Issuer's Series A Preferred Stock for a purchase price of $1.00 per share and an aggregate purchase price of approximately $0.3 million. In May 2021, TCG IV LP purchased an aggregate of 10,467,526 shares of the Issuer's Series A-1 Preferred Stock for a purchase price of $2.00 per share and an aggregate purchase price of approximately $20.93 million. In May 2021, TCG IV-A LP purchased an aggregate of 357,216 shares of the Issuer's Series A-1 Preferred Stock for a purchase price of $2.00 per share and an aggregate purchase price of approximately $0.72 million. In May 2023, TCG IV LP purchased an aggregate of 827,278 shares of the Issuer's Series C Preferred Stock for a purchase price of $21.50 per share and an aggregate purchase price of approximately $17.79 million. In May 2023, TCG IV-A LP purchased an aggregate of 28,229 shares of the Issuer's Series C Preferred Stock for a purchase price of $21.50 per share and an aggregate purchase price of approximately $0.6 million. In February 2025, TCG Opp III LP purchased 5,133,076 shares of the Issuer's Series D Preferred Stock for a purchase price of $5.84 per share and an aggregate purchase price of approximately $30.0 million. In February 2026, effective upon the closing of the Issuer's initial public offering of its Common Stock (the Offering), each series of the Issuer's preferred stock automatically converted into shares of the Issuer's Common Stock on a one-for-7.4578 basis for no consideration. Following such conversion, each Reporting Person directly held such number of shares of Common Stock set forth in Item 11 of their respective Cover Pages. On February 6, 2026, in connection with the Offering, TCG IV LP purchased 1,437,323 shares of the Issuer's Common Stock for a purchase price of $18.00 per share and an aggregate purchase price of approximately $25.87 million. On February 6, 2026, in connection with the Offering, TCG IV-A LP purchased 49,556 shares of the Issuer's Common Stock for a purchase price of $18.00 per share and an aggregate purchase price of approximately $0.9 million. On February 6, 2026, in connection with the Offering, TCG Opportunity III LP purchased 630,881 shares of the Issuer's Common Stock for a purchase price of $18.00 per share and an aggregate purchase price of approximately $11.35 million. All shares of the capital stock of the Issuer purchased by TCG IV LP, TCG IV-A LP and TCG Opportunity III LP have been purchased using investment funds provided to TCG IV LP, TCG IV-A LP and TCG Opportunity III LP by its limited partner and general partner investors. Unless noted above, no part of the purchase price was borrowed by any Reporting Person for the purpose of acquiring any securities discussed in this Item 3.
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.
(d)	Under certain circumstances set forth in the limited partnership agreements of TCG IV LP, TCG IV-A LP and TCG Opportunity III LP, the general partner and limited partners of each of TCG IV LP, TCG IV-A LP and TCG Opportunity III LP may be deemed to have the right to receive dividends from, or the proceeds from, the sale of shares of the Issuer owned by such entity of which they are a partner.
(e)	Not applicable.
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.
Item 7.	Material to be Filed as Exhibits.
	Exhibit 1: Joint Filing Agreement, dated February 12, 2026, by and among the Reporting Persons (filed herewith). Exhibit 2: Amended and Restated Investors' Rights Agreement, dated February 14, 2025, by and among the Registrant and certain of its stockholders, (filed as Exhibit 4.3 to the Issuer's Registration Statement on Form S-1/A as filed with the Commission on January 28, 2026 (SEC File No. 333-292633) and incorporated herein by reference). Exhibit 3: Form of Lock-Up Agreement for certain directors, officers and other stockholders of the Issuer (filed as Exhibit 1.1 to the Issuer's Registration Statement on Form S-1/A as filed with the Commission on January 28, 2026 (SEC File No. 333-292633) and 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.

The Column Group IV GP, LP

Signature:	/s/ James Evangelista
Name/Title:	James Evangelista, Attorney-in-Fact
Date:	02/12/2026

The Column Group IV, LP

Signature:	/s/ James Evangelista
Name/Title:	James Evangelista, Attorney-in-Fact
Date:	02/12/2026

The Column Group IV-A, LP

Signature:	/s/ James Evangelista
Name/Title:	James Evangelista, Attorney-in-Fact
Date:	02/12/2026

The Column Group Opportunity III, LP

Signature:	/s/ James Evangelista
Name/Title:	James Evangelista, Attorney-in-Fact
Date:	02/12/2026

The Column Group Opportunity III GP, LP

Signature:	/s/ James Evangelista
Name/Title:	James Evangelista, Attorney-in-Fact
Date:	02/12/2026

TCG Opportunity III GP, LLC

Signature:	/s/ James Evangelista
Name/Title:	James Evangelista, Attorney-in-Fact
Date:	02/12/2026

Tim Kutzkey

Signature:	/s/ James Evangelista
Name/Title:	James Evangelista, as Attorney-in-Fact for Tim Kutzkey
Date:	02/12/2026

Peter Svennilson

Signature:	/s/ James Evangelista
Name/Title:	James Evangelista, as Attorney-in-Fact for Peter Svennilson
Date:	02/12/2026

FAQ

What does the Schedule 13D filing reveal about Eikon Therapeutics (EIKN)?

The Schedule 13D shows that Column Group-affiliated funds and principals hold a significant stake in Eikon Therapeutics. They collectively report beneficial ownership of 6,353,712 common shares, or 11.6% of the company, reflecting years of preferred investments converted at the IPO plus IPO share purchases.

How many Eikon Therapeutics (EIKN) shares do Column Group entities beneficially own?

Column Group-related reporting persons beneficially own 6,353,712 shares of Eikon Therapeutics common stock. This represents 11.6% of the outstanding common shares, including stock held by several Column Group funds and shares underlying warrants exercisable within 60 days of the statement.

How did Column Group build its position in Eikon Therapeutics (EIKN)?

Column Group funds invested in multiple Eikon preferred rounds from 2019 to 2025, then converted those preferred shares into common stock at the IPO. They also bought additional common shares in the IPO at $18.00 per share, further increasing their ownership stake.

What percentage of Eikon Therapeutics (EIKN) does each Column Group fund hold?

TCG IV LP holds 4,312,139 shares (8.0%), TCG IV-A LP holds 148,840 shares (0.3%), and TCG Opportunity III LP-related entities hold 1,892,733 shares (3.5%). Tim Kutzkey and Peter Svennilson each report aggregate beneficial ownership of 6,353,712 shares, or 11.6% of Eikon’s common stock.

Are Column Group’s Eikon Therapeutics (EIKN) shares subject to lock-up restrictions?

Yes. The reporting persons entered lock-up agreements in connection with Eikon’s IPO. They agreed, subject to specified exceptions, not to sell, transfer, or otherwise convey their Eikon securities for 180 days following the date of the IPO underwriting agreement.

What are Column Group’s stated intentions for its Eikon Therapeutics (EIKN) investment?

The filing states the securities are held for general investment purposes. Depending on market conditions, Eikon’s business, and other factors, the reporting persons may buy more shares, sell some or all holdings, or consider further investments or dispositions over time.