BlockchAIn Digital Infrastructure, Inc. Schedule 13G: Davidson Kempner entities report beneficial ownership of certain shares of Common Stock following the company’s June 8, 2026 prospectus.
Davidson Kempner Capital Management LP and related entities disclose beneficial holdings of 5,223,970 shares (representing 7.36% of the class), with affiliated funds DKAERV holding 5,128,898 shares (7.23%) and M.H. Davidson & Co. holding 95,072 shares (0.13%). The percentages use an aggregate share count of 70,979,467 shares outstanding as reported in the prospectus.
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Insights
Davidson Kempner reports a meaningful passive stake across affiliated funds.
The filing shows 5,223,970 shares held by Davidson Kempner Capital Management LP, representing 7.36% of the 70,979,467 share base noted in the prospectus dated June 8, 2026. The reporting group aggregates voting and dispositive power across multiple affiliated entities rather than a single fund.
Future disclosures in filings will show any change in these holdings; cash‑flow treatment is not stated in the excerpt and voting authority is shown as shared power in the cover rows.
Key Figures
Shares outstanding used for calculation:70,979,467 sharesDavidson Kempner Capital Management holdings:5,223,970 sharesPercent of class (DKCM):7.36%+2 more
5 metrics
Shares outstanding used for calculation70,979,467 sharesAggregate shares outstanding per prospectus, <date>June 8, 2026</date>
Davidson Kempner Capital Management holdings5,223,970 sharesBeneficial ownership reported in Schedule 13G
Percent of class (DKCM)7.36%Percentage of common stock based on prospectus share count
DKAERV holdings5,128,898 sharesBeneficial ownership reported for Davidson Kempner Arbitrage, Equities & Relative Value
"Item 1. Name of issuer:... Schedule 13G reporting beneficial ownership"
A Schedule 13G is a formal document that investors file with the government when they acquire a large ownership stake in a company, usually for investment purposes rather than control. It helps keep the public informed about who owns significant parts of a company's shares, which can influence how the company is managed and how investors make decisions. Filing this schedule is important for transparency and understanding the ownership landscape of publicly traded companies.
Beneficial ownershipfinancial
"Item 4. Ownership (a) Amount beneficially owned: The information required by Item 4(a)..."
Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.
Shared dispositive powerregulatory
"Shared Dispositive Power 5,223,970.00 ... shared dispositive power"
Prospectus filed pursuant to Rule 424(b)(4)regulatory
"as reported in the Company's Prospectus filed pursuant to Rule 424(b)(4) filed with the on June 8, 2026"
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Davidson Kempner reports beneficial ownership of 5,223,970 shares, equal to 7.36% of the class, based on 70,979,467 shares outstanding from the prospectus dated June 8, 2026. The holdings are across affiliated entities.
Which affiliated entities are listed for the AIB Schedule 13G?
The filing names M.H. Davidson & Co., Davidson Kempner Arbitrage, Equities & Relative Value, Davidson Kempner Capital Management LP, and Anthony A. Yoseloff as reporting persons, with shared voting and dispositive powers reported.
What share counts for other Davidson Kempner-held AIB positions are disclosed?
The excerpt shows 5,128,898 shares ( 7.23%) held by Davidson Kempner Arbitrage, Equities & Relative Value and 95,072 shares ( 0.13%) held by M.H. Davidson & Co., using the prospectus outstanding share base.
Does the Schedule 13G indicate sole voting control for AIB shares?
No; the cover rows cited in the filing show shared voting power and shared dispositive power for the reporting persons. The filing does not state sole voting power for these holdings.
What share-count baseline does AIB use in calculating percentages?
Percentages are calculated using an aggregate of 70,979,467 shares outstanding as reported in the Company’s prospectus filed pursuant to Rule 424(b)(4) on June 8, 2026, after giving effect to that offering.
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
UNDER THE SECURITIES EXCHANGE ACT OF 1934
BlockchAIn Digital Infrastructure, Inc.
(Name of Issuer)
Common Stock, par value $0.0001 per share
(Title of Class of Securities)
093919108
(CUSIP Number)
06/08/2026
(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):
093919108
1
Names of Reporting Persons
M.H. Davidson & Co.
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 YORK
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
95,072.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
95,072.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
95,072.00
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)
0.13 %
12
Type of Reporting Person (See Instructions)
PN
SCHEDULE 13G
CUSIP Number(s):
093919108
1
Names of Reporting Persons
Davidson Kempner Arbitrage, Equities & Relative Value 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
CAYMAN ISLANDS
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
5,128,898.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
5,128,898.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
5,128,898.00
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)
7.23 %
12
Type of Reporting Person (See Instructions)
PN
SCHEDULE 13G
CUSIP Number(s):
093919108
1
Names of Reporting Persons
Davidson Kempner Capital Management 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
5,223,970.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
5,223,970.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
5,223,970.00
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)
7.36 %
12
Type of Reporting Person (See Instructions)
PN
SCHEDULE 13G
CUSIP Number(s):
093919108
1
Names of Reporting Persons
Anthony A. Yoseloff
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
UNITED STATES
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
5,223,970.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
5,223,970.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
5,223,970.00
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)
7.36 %
12
Type of Reporting Person (See Instructions)
IN
SCHEDULE 13G
Item 1.
(a)
Name of issuer:
BlockchAIn Digital Infrastructure, Inc.
(b)
Address of issuer's principal executive offices:
1540 Broadway, Ste 1010 New York, New York 10036
Item 2.
(a)
Name of person filing:
This Statement is filed by each of the entities and persons listed below, all of whom together are referred to herein as the "Reporting Persons":
(i) M.H. Davidson & Co., a New York limited partnership ("CO"). M.H. Davidson & Co. GP, L.L.C., a Delaware limited liability company ("CO GP"), is the general partner of CO and Davidson Kempner Liquid GP Topco LLC, a Delaware limited liability company, is the managing member of CO GP. DKCM (as defined below) is responsible for the voting and investment decisions of CO;
(ii) Davidson Kempner Arbitrage, Equities and Relative Value LP, a Cayman Islands exempted limited partnership ("DKAERV"). Davidson Kempner Multi-Strategy GP II LLC, a Delaware limited liability company ("DKAERV GP"), is the general partner of DKAERV and Davidson Kempner Liquid GP Topco LLC, a Delaware limited liability company, is the managing member of DKAERV GP. DKCM is responsible for the voting and investment decisions of DKAERV;
(iii) Davidson Kempner Capital Management LP, a Delaware limited partnership and a registered investment adviser with the U.S. Securities and Exchange Commission, acts as investment manager to each of CO and DKAERV ("DKCM"). DKCM GP LLC, a Delaware limited liability company, is the general partner of DKCM. The managing members of DKCM are Anthony A. Yoseloff, Conor Bastable, Morgan P. Blackwell, Patrick W. Dennis, Gabriel T. Schwartz, Zachary Z. Altschuler, Joshua D. Morris, Suzanne K. Gibbons, Gregory S. Feldman, Melanie Levine and James Li; and
(iv) Anthony A. Yoseloff, through DKCM, is responsible for the voting and investment decisions relating to the common stock, par value $0.0001 per share ("Common Stock"), of BlockchAIn Digital Infrastructure, Inc. (the "Company") held by CO and DKAERV.
(b)
Address or principal business office or, if none, residence:
The address of the principal business office of each of the Reporting Persons is c/o Davidson Kempner Capital Management LP, 9 West 57th Street, 29th Floor, New York, NY 10019.
(c)
Citizenship:
(i) CO - a New York limited partnership
(ii) DKAERV - a Cayman Islands exempted limited partnership
(iii) DKCM - a Delaware limited partnership
(iv) Anthony A. Yoseloff - United States
(d)
Title of class of securities:
Common Stock, par value $0.0001 per share
(e)
CUSIP Number(s):
093919108
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 Item 4(a) is set forth in Row 9 of the cover page for each of the Reporting Persons and is incorporated herein by reference.
The percentages set forth in this Schedule 13G are calculated based upon an aggregate of 70,979,467 shares of Common Stock outstanding, as reported in the Company's Prospectus filed pursuant to Rule 424(b)(4) filed with the Securities and Exchange Commission on June 8, 2026, after giving effect to the completion of the offering described therein.
(b)
Percent of class:
7.36 %
(c)
Number of shares as to which the person has:
(i) Sole power to vote or to direct the vote:
The information required by Item 4(c)(i) is set forth in Row 5 of the cover page for each of the Reporting Persons and is incorporated herein by reference.
(ii) Shared power to vote or to direct the vote:
The information required by Item 4(c)(ii) is set forth in Row 6 of the cover page for each of the Reporting Persons and is incorporated herein by reference.
(iii) Sole power to dispose or to direct the disposition of:
The information required by Item 4(c)(iii) is set forth in Row 7 of the cover page for each of the Reporting Persons and is incorporated herein by reference.
(iv) Shared power to dispose or to direct the disposition of:
The information required by Item 4(c)(iv) is set forth in Row 8 of the cover page for each of the Reporting Persons and is incorporated herein by reference.
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.
M.H. Davidson & Co.
Signature:
/s/ Anthony A. Yoseloff
Name/Title:
Anthony A. Yoseloff, Executive Managing Member of Davidson Kempner Liquid GP Topco LLC, Managing Member of CO GP, General Partner of CO
Date:
06/15/2026
Davidson Kempner Arbitrage, Equities & Relative Value LP
Signature:
/s/ Anthony A. Yoseloff
Name/Title:
Anthony A. Yoseloff, Executive Managing Member of Davidson Kempner Liquid GP Topco LLC, Managing Member of DKAERV GP, General Partner of DKAERV
