[SCHEDULE 13G] TRex Bio, Inc. Passive Investment Disclosure (>5%)
TRex Bio: Johnson & Johnson unit reports 5.3% stake
Both reporting entities are listed with shared voting and dispositive power over the position; Johnson & Johnson may be deemed its indirect beneficial owner.
Rhea-AI Sentiment reads the wording of the document, how positive or negative its language is on a 1 to 5 scale. The balance of points shown with the takes weighs what the document actually discloses, so the two can disagree, for example when a trial that missed its main goal is described in upbeat language.
TRex Bio, Inc. reported that Johnson & Johnson Innovation-JJDC, Inc. directly beneficially owns 1,475,302 common shares, equal to 5.3% of the class. Johnson & Johnson may be deemed to indirectly beneficially own the same securities; both reporting persons reported shared voting and dispositive power. The percentage is based on 27,577,535 shares outstanding following the issuer’s initial public offering closing on October 13, 2026.
Key Figures
Beneficially owned common shares:1,475,302 sharesPercent of class:5.3%Common shares outstanding:27,577,535 shares
3 metrics
Beneficially owned common shares1,475,302 sharesDirectly beneficially owned by Johnson & Johnson Innovation-JJDC, Inc.
Percent of class5.3%Based on shares outstanding following the initial public offering closing
Common shares outstanding27,577,535 sharesFollowing the initial public offering closing on October 13, 2026
Key Terms
beneficially owned, Shared Voting Power, Shared Dispositive Power
3 terms
beneficially ownedregulatory
"Amount beneficially owned"
Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.
Shared Voting Powerregulatory
"Shared Voting Power 1,475,302.00"
Shared voting power occurs when two or more parties jointly have the right to vote or decide how a block of company shares is cast, like co-owners who must agree before moving a piece of furniture. Investors care because who controls voting rights affects board elections, major corporate decisions and takeover outcomes, and shared control can alter regulatory disclosures and the practical influence any holder has over a company’s direction and value.
Shared Dispositive Powerregulatory
"Shared Dispositive Power 1,475,302.00"
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
How many TRXB shares does Johnson & Johnson Innovation-JJDC own?
Johnson & Johnson Innovation-JJDC, Inc. directly beneficially owns 1,475,302 TRex Bio common shares; Johnson & Johnson may be deemed to indirectly beneficially own those securities.
What percentage of TRXB is reported as beneficially owned?
The reported beneficial ownership is 5.3% of TRex Bio’s common stock, based on 27,577,535 shares outstanding following the initial public offering closing on October 13, 2026.
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
UNDER THE SECURITIES EXCHANGE ACT OF 1934
TRex Bio, Inc.
(Name of Issuer)
Common Stock, $0.0001 par value
(Title of Class of Securities)
89531N100
(CUSIP Number)
10/13/2026
(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)
schemaVersion:
SCHEDULE 13G
CUSIP Number(s):
89531N100
1
Names of Reporting Persons
Johnson & Johnson Innovation - JJDC, Inc.
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:
5
Sole Voting Power
0.00
6
Shared Voting Power
1,475,302.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
1,475,302.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
1,475,302.00
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)
5.3 %
12
Type of Reporting Person (See Instructions)
CO
SCHEDULE 13G
CUSIP Number(s):
89531N100
1
Names of Reporting Persons
JOHNSON & JOHNSON
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
NEW JERSEY
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
1,475,302.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
1,475,302.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
1,475,302.00
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)
5.3 %
12
Type of Reporting Person (See Instructions)
CO
SCHEDULE 13G
Item 1.
(a)
Name of issuer:
TRex Bio, Inc.
(b)
Address of issuer's principal executive offices:
269 East Grand Avenue, Suite 300, South San Francisco, CA 94080
Item 2.
(a)
Name of person filing:
This Schedule 13G is filed by Johnson & Johnson Innovation-JJDC, Inc., a Delaware corporation ("JJDC"), and Johnson & Johnson, a New Jersey corporation ("J&J")(together, the "Reporting Persons"). JJDC is a wholly-owned subsidiary of J&J. The securities reported herein as being beneficially owned by JJDC and J&J are directly beneficially owned by JJDC, and J&J may be deemed to indirectly beneficially own such securities. The agreement between the Reporting Persons to file jointly (the "Joint Filing Agreement") is filed herewith as Exhibit A.
(b)
Address or principal business office or, if none, residence:
JJDC: 410 George Street, New Brunswick, NJ 08901
J&J: One Johnson & Johnson Plaza, New Brunswick, NJ 08933
(c)
Citizenship:
JJDC: DE
J&J: NJ
(d)
Title of class of securities:
Common Stock, $0.0001 par value
(e)
CUSIP Number(s):
89531N100
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 requested in this item is incorporated herein by reference to the cover pages to this Schedule 13G.
(b)
Percent of class:
The information requested in this item is incorporated herein by reference to the cover pages to this Schedule 13G. Percentage ownership is based on 27,577,535 shares of Common Stock outstanding following the closing of the Issuer's initial public offering on October 13, 2026, as provided to the Reporting Persons by the Issuer.
(c)
Number of shares as to which the person has:
(i) Sole power to vote or to direct the vote:
The information requested in this item is incorporated herein by reference to the cover pages to this Schedule 13G.
(ii) Shared power to vote or to direct the vote:
The information requested in this item is incorporated herein by reference to the cover pages to this Schedule 13G.
(iii) Sole power to dispose or to direct the disposition of:
The information requested in this item is incorporated herein by reference to the cover pages to this Schedule 13G.
(iv) Shared power to dispose or to direct the disposition of:
The information requested in this item is incorporated herein by reference to the cover pages to this Schedule 13G.
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:
By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.
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.
