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ALT5 Sigma Corp’s major shareholder group reports a passive 8.7% stake. The group, including an investment manager, related funds and Chun R. Ding, reports beneficial ownership of 10,941,280 shares of common stock.
This percentage is calculated using 126,339,124 shares outstanding as of January 30, 2026, from the company’s definitive proxy statement. The Institutional Master Fund (BVI), Ltd. holds 6,770,000 shares (5.4%), B SPV holds 3,720,847 shares (2.9%), and Fintech Fund holds 333,153 shares (0.3%). The filers state the shares are not held to change or influence control, and the investment manager, its general partner and Mr. Ding disclaim beneficial ownership of the shares held by the funds and managed accounts.
Insights
Filing shows a passive 8.7% stakeholder group in ALT5 Sigma with standard ownership disclaimers.
The Schedule 13G/A reports a group led by an investment manager, related entities, and Chun R. Ding holding 10,941,280 ALT5 Sigma common shares, or 8.7% of the class. One vehicle, Institutional Master Fund (BVI), Ltd., alone reports 5.4% ownership.
The filing is on a passive 13G basis and includes a certification that the securities were not acquired to change or influence control. The investment manager, its general partner, and Mr. Ding may be deemed beneficial owners through their roles but expressly disclaim beneficial ownership of the funds’ and managed accounts’ shares.
This disclosure primarily clarifies who controls voting and dispositive power over a significant block of shares, rather than signaling a new transaction. Future company filings may further update ownership percentages if the share count or holdings change.
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
What percentage of ALT5 Sigma Corp (ALTS) shares does the reporting group hold?
The reporting group holds 10,941,280 ALT5 Sigma common shares, representing 8.7% of the outstanding class. This percentage is based on 126,339,124 shares outstanding as of January 30, 2026, as disclosed in the company’s definitive proxy statement filed on February 3, 2026.
Who are the main reporting persons in the ALT5 Sigma Corp (ALTS) Schedule 13G/A?
The filing lists an investment manager, its general partner, Institutional Master Fund (BVI), Ltd., B SPV, Fintech Fund, and Chun R. Ding as reporting persons. Ding is described as managing partner of the investment manager and manager of the general partner for these entities.
How many ALT5 Sigma Corp (ALTS) shares does Institutional Master Fund (BVI), Ltd. own?
Institutional Master Fund (BVI), Ltd. reports beneficial ownership of 6,770,000 ALT5 Sigma common shares, equal to 5.4% of the class. This percentage also uses 126,339,124 shares outstanding as of January 30, 2026, as disclosed in the company’s definitive proxy statement.
Is the 8.7% ALT5 Sigma Corp (ALTS) stake reported as passive or for control purposes?
The group certifies the securities were not acquired and are not held to change or influence control of ALT5 Sigma. They state the holdings are not connected with any transaction seeking control, other than activities solely related to a nomination under Rule 240.14a-11.
How are voting and dispositive powers over ALT5 Sigma Corp (ALTS) shares allocated in the filing?
Each reporting person reports zero sole voting and dispositive power and shared voting and dispositive power over the relevant shares. The investment manager, its general partner, and Chun R. Ding may be deemed beneficial owners through their roles but disclaim beneficial ownership of the funds’ and managed accounts’ holdings.
What is the share count used to calculate ownership percentages in the ALT5 Sigma Corp (ALTS) 13G/A?
Ownership percentages are calculated using 126,339,124 ALT5 Sigma common shares outstanding as of January 30, 2026. This denominator is taken from the company’s definitive proxy statement filed with the SEC on February 3, 2026, as noted repeatedly in the ownership tables.
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
UNDER THE SECURITIES EXCHANGE ACT OF 1934
(Amendment No. 1)
ALT5 Sigma Corp
(Name of Issuer)
Common Stock, $0.001 par value
(Title of Class of Securities)
47089W104
(CUSIP Number)
12/31/2025
(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.
47089W104
1
Names of Reporting Persons
CRCM LP
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
10,941,280.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
10,941,280.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
10,941,280.00
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)
8.7 %
12
Type of Reporting Person (See Instructions)
IA
Comment for Type of Reporting Person: Note to Row 11: The denominator for this calculation is based on 126,339,124 shares of Common Stock outstanding as of January 30, 2026, as reported in the Company's Definitive Proxy Statement filed with the U.S. Securities and Exchange Commission on February 3, 2026.
SCHEDULE 13G
CUSIP No.
47089W104
1
Names of Reporting Persons
CRCM 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:
5
Sole Voting Power
0.00
6
Shared Voting Power
10,941,280.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
10,941,280.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
10,941,280.00
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)
8.7 %
12
Type of Reporting Person (See Instructions)
OO
Comment for Type of Reporting Person: Note to Row 11: The denominator for this calculation is based on 126,339,124 shares of Common Stock outstanding as of January 30, 2026, as reported in the Company's Definitive Proxy Statement filed with the U.S. Securities and Exchange Commission on February 3, 2026.
SCHEDULE 13G
CUSIP No.
47089W104
1
Names of Reporting Persons
CRCM INSTITUTIONAL MASTER FUND (BVI), LTD.
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
VIRGIN ISLANDS, BRITISH
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
6,770,000.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
6,770,000.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
6,770,000.00
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)
5.4 %
12
Type of Reporting Person (See Instructions)
OO
Comment for Type of Reporting Person: Note to Row 11: The denominator for this calculation is based on 126,339,124 shares of Common Stock outstanding as of January 30, 2026, as reported in the Company's Definitive Proxy Statement filed with the U.S. Securities and Exchange Commission on February 3, 2026.
SCHEDULE 13G
CUSIP No.
47089W104
1
Names of Reporting Persons
CRCM B SPV, LP
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
3,720,847.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
3,720,847.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
3,720,847.00
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)
2.9 %
12
Type of Reporting Person (See Instructions)
PN
Comment for Type of Reporting Person: Note to Row 11: The denominator for this calculation is based on 126,339,124 shares of Common Stock outstanding as of January 30, 2026, as reported in the Company's Definitive Proxy Statement filed with the U.S. Securities and Exchange Commission on February 3, 2026.
SCHEDULE 13G
CUSIP No.
47089W104
1
Names of Reporting Persons
CRCM Fintech Fund, LP
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
333,153.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
333,153.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
333,153.00
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)
0.3 %
12
Type of Reporting Person (See Instructions)
PN
Comment for Type of Reporting Person: Note to Row 11: The denominator for this calculation is based on 126,339,124 shares of Common Stock outstanding as of January 30, 2026, as reported in the Company's Definitive Proxy Statement filed with the U.S. Securities and Exchange Commission on February 3, 2026.
SCHEDULE 13G
CUSIP No.
47089W104
1
Names of Reporting Persons
Ding Chun R
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
SAINT KITTS AND NEVIS
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
10,941,280.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
10,941,280.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
10,941,280.00
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)
8.7 %
12
Type of Reporting Person (See Instructions)
IN
Comment for Type of Reporting Person: Note to Row 11: The denominator for this calculation is based on 126,339,124 shares of Common Stock outstanding as of January 30, 2026, as reported in the Company's Definitive Proxy Statement filed with the U.S. Securities and Exchange Commission on February 3, 2026.
SCHEDULE 13G
Item 1.
(a)
Name of issuer:
ALT5 Sigma Corp
(b)
Address of issuer's principal executive offices:
325 E. Warm Springs Road, Suite 102, Las Vegas, Nevada, 89119
Item 2.
(a)
Name of person filing:
(i) CRCM LP, a Delaware limited partnership and the investment manager ("Investment Manager") of CRCM B SPV, LP, CRCM Master Fund, and CRCM Fintech Fund, LP (collectively, the "CRCM Funds") and separately managed account clients (the "Managed Accounts");
(ii) CRCM LLC, a Delaware limited liability company and the general partner (the "General Partner") of the Investment Manager, with respect to the shares held by the CRCM Funds and the Managed Accounts;
(iii) CRCM Institutional Master Fund (BVI), Ltd., a British Virgin Islands limited company ("CRCM Master Fund");
(iv) CRCM B SPV, LP, a Delaware limited partnership;
(v) CRCM Fintech Fund, LP, a Delaware limited partnership; and
(vi) Chun R. Ding ("Ding"), is a citizen of St. Kits and Nevis and the managing partner of the Investment Manager, the manager of the General Partner, with respect to the shares held by the CRCM Funds and the Managed Accounts.
(b)
Address or principal business office or, if none, residence:
The address of the principal business of (iii-v) CRCM Funds is 475 Sansome Street, Suite 730, San Francisco, CA 94111; (i, ii, and v) the Investment Manager, the General Partner, and Mr. Ding (c/o CRCM) is 475 Sansome Street, Suite 730, San Francisco, CA 94111.
(c)
Citizenship:
The citizenship of each Reporting Person is set forth above.
(d)
Title of class of securities:
Common Stock, $0.001 par value
(e)
CUSIP No.:
47089W104
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 Items 4(a) - (c) is set forth in Rows 5 through 11 of the cover page for each Reporting Person is incorporated herein by reference for each such Reporting Person.
(b)
Percent of class:
The shares of Common Stock reported hereby for the CRCM Funds are owned directly by the applicable fund. The Investment Manager, as investment manager of the CRCM Funds and the Managed Accounts, may be deemed to be the beneficial owner of all such shares owned by the CRCM Funds and the Managed Accounts. The General Partner, as general partner of the Investment Manager, may be deemed to be the beneficial owner of all of such shares owned by the CRCM Funds and the Managed Accounts. Mr. Ding, as managing partner of the Investment Manager, and manager of the General Partner with the power to exercise investment discretion, may be deemed to be the beneficial owner of all such shares owned by the CRCM Funds and the Managed Accounts. Each of the Investment Manager, the General Partner and Mr. Ding hereby disclaims any beneficial ownership of any such shares.
(c)
Number of shares as to which the person has:
(i) Sole power to vote or to direct the vote:
The information required by Items 4(a) - (c) is set forth in Rows 5 through 11 of the cover page for each Reporting Person is incorporated herein by reference for each such Reporting Person.
(ii) Shared power to vote or to direct the vote:
The information required by Items 4(a) - (c) is set forth in Rows 5 through 11 of the cover page for each Reporting Person is incorporated herein by reference for each such Reporting Person.
(iii) Sole power to dispose or to direct the disposition of:
The information required by Items 4(a) - (c) is set forth in Rows 5 through 11 of the cover page for each Reporting Person is incorporated herein by reference for each such Reporting Person.
(iv) Shared power to dispose or to direct the disposition of:
The information required by Items 4(a) - (c) is set forth in Rows 5 through 11 of the cover page for each Reporting Person is incorporated herein by reference for each such 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:
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.
CRCM LP
Signature:
/s/ Chun R. Ding
Name/Title:
CRCM LP
Date:
02/12/2026
CRCM LLC
Signature:
/s/ Chun R. Ding
Name/Title:
CRCM LLC
Date:
02/12/2026
CRCM INSTITUTIONAL MASTER FUND (BVI), LTD.
Signature:
/s/ Chun R. Ding
Name/Title:
CRCM INSTITUTIONAL MASTER FUND (BVI), LTD.
Date:
02/12/2026
CRCM B SPV, LP
Signature:
/s/ Chun R. Ding
Name/Title:
CRCM B SPV, LP
Date:
02/12/2026
CRCM Fintech Fund, LP
Signature:
/s/ Chun R. Ding
Name/Title:
CRCM Fintech Fund, LP
Date:
02/12/2026
Ding Chun R
Signature:
/s/ Chun R. Ding
Name/Title:
DING CHUN R
Date:
02/12/2026
Exhibit Information
Exhibit 1 -- Joint Acquisition Statement Pursuant to Section 240.13d-1(k)
