Amended Statement of Ownership (sc 13g/a)

Names of Reporting Persons.

Todd R. Nelson

Check the Appropriate Box if a Member of a Group (See Instructions)

(a) ☐ (b) ☐

SEC Use Only

Citizenship or Place of Organization

United States of America

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13G

Under the Securities Exchange Act of 1934

(Amendment No. 1)*

Telesis Bio Inc.

(Name of Issuer)

Common Stock, $0.0001 par value

(Title of Class of Securities)

192003 101

(CUSIP Number)

December 31, 2022

(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)

*	The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.

The information required in 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).

CUSIP No. 192003101

(1)

Includes (i) 90,747 shares of Common Stock held by Todd R. Nelson, (ii) 6,000,000 shares of Common Stock held by GATTACA Mining LLC, for which Todd R. Nelson serves as managing member, (iii) 122,516 shares of Common Stock held by M-185 Corporation, of which Todd R. Nelson is the majority stockholder, (iv) 11,975 shares of Common Stock issuable to Todd R. Nelson upon vesting of restricted stock units within 60 days of December 31, 2022; and (v) options to purchase 45,875 shares of Common Stock held by Todd R. Nelson, which are exercisable within 60 days of December 31, 2022.

CUSIP No. 192003101

Item 1(a)

Name of Issuer:

Telesis Bio Inc.

Item 1(b)

Address of Issuer’s Principal Executive Offices:

9535 Waples Street

Suite 100

San Diego, CA 92121-2993

Item 2(a)

Name of Person Filing:

This Schedule 13G is filed by:

(i) Todd R. Nelson, the President and Chief Executive Officer of Telesis Bio Inc.; and

(ii) GATTACA Mining LLC, for which Todd R. Nelson serves as managing member.

Item 2(b)

Address of Principal Business Office or, if none, Residence:

The address of the principal business office of Todd R. Nelson is:

9535 Waples Street

Suite 100

San Diego, CA 92121-2993

The address of the principal business office of GATTACA Mining LLC is:

P.O. Box 676273

Rancho Santa Fe, CA 92067

Item 2(c)

Citizenship:

Todd R. Nelson is a United States citizen.

GATTACA Mining LLC is a Delaware limited liability company.

Item 2(d)

Title of Class of Securities:

Common Stock, $0.0001 par value

Item 2(e)

CUSIP Number:

192003 101

Item 3.

If this statement is filed pursuant to §§240.13d-1(b) or 240.13d-2(b) or 240.13d-2(b) or 240.13d-2(c).

Not applicable.

Item 4.

Ownership.

(a)	Amount beneficially owned: See Item 9 of the cover page for each Reporting Person.

(b)	Todd R. Nelson may be deemed the beneficial owner of 21.2% of the Common Stock outstanding, based on 29,521,757 shares of Common Stock outstanding as of October 31, 2022, as reported in the Issuer’s Quarterly Report on Form 10-Q filed on November 9, 2022.

GATTACA Mining LLC may be deemed the beneficial owner of 21.0% of the Common Stock outstanding, based on 29,521,757 shares of Common Stock outstanding as of October 31, 2022, as reported in the Issuer’s Quarterly Report on Form 10-Q filed on November 9, 2022.

See Item 5 of the cover page for each Reporting Person.

(ii)

Shared power to vote or direct the vote:

See Item 6 of the cover page for each Reporting Person.

(iii)

Sole power to dispose or direct the disposition:

See Item 7 of the cover page for each Reporting Person.

(iv)

Shared power to dispose or direct the disposition:

See Item 8 of the cover page for each Reporting Person.

Item 5.

Ownership of 5 Percent or Less of a Class.

Not applicable.

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.

SIGNATURES

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.

Date: February 14, 2023


Todd R. Nelson

By:		/s/ Todd R. Nelson

GATTACA Mining LLC

By:		/s/ Todd R. Nelson
Todd R. Nelson
Managing Member

Exhibit Index


Exhibit No.		Description

99.1		Joint Filing Agreement, dated February 14, 2022 (incorporated by reference to Exhibit 99.1 of the Reporting Persons’ Schedule 13G filed with the Securities and Exchange Commission on February 15, 2022).