| SECURITIES AND EXCHANGE
COMMISSION Washington, D.C. 20549 |
SCHEDULE 13G |
UNDER THE SECURITIES EXCHANGE ACT OF 1934
|
(Amendment
No. 2
)*
|
Singular Genomics Systems, Inc. (Name of Issuer) |
Common Stock, $0.0001 par value (Title of Class of Securities) |
82933R100 (CUSIP Number) |
12/31/2024 (Date of Event Which Requires Filing of this Statement) |
| Check the appropriate box to designate the rule pursuant to which this Schedule is filed: |
 Rule
13d-1(b) |
| Rule
13d-1(c) |
 Rule
13d-1(d) |
SCHEDULE 13G |
| CUSIP No. | 82933R100 |
| 1 | Names of Reporting Persons Domain Partners IX, L.P. | ||||||||
| 2 | Check the appropriate box if a member of a Group (see
instructions)
(a)
(b) | ||||||||
| 3 | Sec Use Only | ||||||||
| 4 | Citizenship or Place of Organization DELAWARE | ||||||||
| Number of Shares Beneficially Owned by Each Reporting Person With: |
| ||||||||
| 9 | Aggregate Amount Beneficially Owned by Each Reporting
Person 125,446.00 | ||||||||
| 10 | Check box if the aggregate amount in row (9) excludes
certain shares (See Instructions) | ||||||||
| 11 | Percent of class represented by amount in row (9) 4.95 % | ||||||||
| 12 | Type of Reporting Person (See Instructions) PN |
SCHEDULE 13G |
| CUSIP No. | 82933R100 |
| 1 | Names of Reporting Persons Domain Associates, LLC | ||||||||
| 2 | Check the appropriate box if a member of a Group (see
instructions)
(a)
(b) | ||||||||
| 3 | Sec Use Only | ||||||||
| 4 | Citizenship or Place of Organization DELAWARE | ||||||||
| Number of Shares Beneficially Owned by Each Reporting Person With: |
| ||||||||
| 9 | Aggregate Amount Beneficially Owned by Each Reporting
Person 500.00 | ||||||||
| 10 | Check box if the aggregate amount in row (9) excludes
certain shares (See Instructions) | ||||||||
| 11 | Percent of class represented by amount in row (9) 0.02 % | ||||||||
| 12 | Type of Reporting Person (See Instructions) OO |
SCHEDULE 13G |
| Item 1. | ||
| (a) | Name of issuer: Singular Genomics Systems, Inc. | |
| (b) | Address of issuer's principal executive
offices: 3010 Science Park Road, San Diego, CA 92121 | |
| Item 2. | ||
| (a) | Name of person filing: This Amendment No. 2 to Schedule 13G is filed by Domain Partners IX, L.P., a Delaware limited partnership ("Domain IX"), and Domain Associates, LLC, a Delaware limited liability company ("DA" and together with Domain IX, the "Reporting Persons"). Reference is hereby made to the Schedule 13G filed with the Securities and Exchange Commission by the Reporting Persons with respect to the Common Stock of the Issuer on January 4, 2022 and Amendment No. 1 thereto filed on January 25, 2024. The items included in this Amendment No. 2 are hereby amended and restated. | |
| (b) | Address or principal business office or, if
none, residence: | |
| (c) | Citizenship: | |
| (d) | Title of class of securities: Common Stock, $0.0001 par value | |
| (e) | CUSIP No.: 82933R100 | |
| Item 3. | If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a: | |
| (a) | Broker
or dealer registered under section 15 of the Act (15 U.S.C. 78o); | |
| (b) | Bank
as defined in section 3(a)(6) of the Act (15 U.S.C. 78c); | |
| (c) | Insurance
company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c); | |
| (d) | Investment
company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8); | |
| (e) | An
investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E); | |
| (f) | An
employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F); | |
| (g) | A
parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G); | |
| (h) | A
savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C.
1813); | |
| (i) | A
church plan that is excluded from the definition of an investment company under section 3(c)(14)
of the Investment Company Act of 1940 (15 U.S.C. 80a-3); | |
| (j) | A
non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S.
institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution: | |
| (k) | Group,
in accordance with Rule 240.13d-1(b)(1)(ii)(K). | |
| Item 4. | Ownership | |
| (a) | Amount beneficially owned: The information required by this item is set forth in the cover pages to this Schedule 13G/A and is incorporated herein by reference. | |
| (b) | Percent of class: The information required by this item is set forth in the cover pages to this Schedule 13G/A and is incorporated herein by reference. Percentage ownership is based on 2,533,744 shares of Common Stock outstanding as of December 20, 2024, as reported in the Issuer's Report on Form 8-K filed with the Securities and Exchange Commission on December 23, 2024. % | |
| (c) | Number of shares as to which the person has: | |
| (i) Sole power to vote or to direct the vote: The information required by this item is set forth in the cover pages to this Schedule 13G/A and is incorporated herein by reference. | ||
| (ii) Shared power to vote or to direct the
vote: The information required by this item is set forth in the cover pages to this Schedule 13G/A and is incorporated herein by reference. | ||
| (iii) Sole power to dispose or to direct the
disposition of: The information required by this item is set forth in the cover pages to this Schedule 13G/A and is incorporated herein by reference. | ||
| (iv) Shared power to dispose or to direct the
disposition of: The information required by this item is set forth in the cover pages to this Schedule 13G/A and is incorporated herein by reference. | ||
| Item 5. | Ownership of 5 Percent or Less of a Class. | |
|
Ownership of 5 percent or less of a class | ||
| Item 6. | Ownership of more than 5 Percent on Behalf of Another Person. | |
Not Applicable
| ||
| Item 7. | Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person. | |
Not Applicable
| ||
| Item 8. | Identification and Classification of Members of the Group. | |
Not Applicable
| ||
| Item 9. | Notice of Dissolution of Group. | |
Not Applicable
| ||
| Item 10. | Certifications: |
Not Applicable
|
| 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. |
|
|
|
|