D. Boral ARC Acquisition I Corp. received an updated Schedule 13G/A from Harraden Circle Investments, LLC and Frederick V. Fortmiller, Jr., reporting beneficial ownership of 2,643,991 Class A shares, representing 9.06% of the class. The reporting persons have shared voting and dispositive power over all of these shares and no sole voting or dispositive power. The shares are held for the accounts of several Harraden-managed funds, and certain of these funds, including Harraden Circle Investors, LP, have the right to receive dividends and sale proceeds. The amendment reflects an internal reorganization effective June 30, 2026 that removed former reporting persons who are no longer beneficial owners.
Positive
None.
Negative
None.
Key Figures
Beneficial ownership:2,643,991 sharesPercent of class:9.06%Shared voting power:2,643,991 shares+2 more
5 metrics
Beneficial ownership2,643,991 sharesClass A shares beneficially owned by the reporting persons
Percent of class9.06%Percentage of Class A stock of D. Boral ARC Acquisition I Corp.
Shared voting power2,643,991 sharesShares over which the reporting persons share voting power
Shared dispositive power2,643,991 sharesShares over which the reporting persons share dispositive power
Effective date of reorganization06/30/2026Internal reorganization leading to removal of certain prior reporting persons
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 powerfinancial
"Shared Voting Power 2,643,991.00"
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 powerfinancial
"Shared Dispositive Power 2,643,991.00"
investment managerfinancial
"Harraden Adviser serves as investment manager to Harraden Fund"
parent holding companyfinancial
"Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company"
FAQ
What percentage of D. Boral ARC Acquisition I Corp. (BCAR) does Harraden report owning?
Harraden Circle Investments, LLC and Frederick V. Fortmiller, Jr. report beneficial ownership of 9.06% of D. Boral ARC Acquisition I Corp.’s Class A shares, representing 2,643,991 shares with shared voting and dispositive power.
How many BCAR Class A shares are beneficially owned by the Harraden reporting group?
The reporting persons beneficially own 2,643,991 Class A shares of D. Boral ARC Acquisition I Corp., equal to 9.06% of the class, with all voting and dispositive authority held on a shared basis, not individually.
Who are the reporting persons in this BCAR Schedule 13G/A amendment?
The Schedule 13G/A is filed on behalf of Harraden Circle Investments, LLC and Frederick V. Fortmiller, Jr., who together report shared voting and dispositive power over 2,643,991 Class A shares held for various Harraden-managed funds.
Which Harraden funds are associated with the BCAR shares in this filing?
The reported BCAR shares are held for Harraden Circle Investors, LP, Harraden Circle Special Opportunities, LP, Harraden Circle Strategic Investments, LP, and Harraden Circle Concentrated, LP, with Harraden Circle Investors, LP’s interest exceeding 5% of the class.
What internal change does this BCAR Schedule 13G/A amendment reflect?
The amendment reflects an internal reorganization effective June 30, 2026, after which certain former reporting persons were no longer beneficial owners and were removed, leaving only the remaining reporting persons on this Schedule 13G/A.
Does Harraden have sole or shared voting power over its BCAR holdings?
The reporting persons have 0 shares with sole voting or dispositive power and 2,643,991 shares with shared voting and shared dispositive power, all tied to Harraden-managed investment funds.
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
UNDER THE SECURITIES EXCHANGE ACT OF 1934
(Amendment No. 2)
D. Boral ARC Acquisition I Corp.
(Name of Issuer)
Class A
(Title of Class of Securities)
G2616F101
(CUSIP Number)
06/30/2026
(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):
G2616F101
1
Names of Reporting Persons
Harraden Circle Investments, 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
2,643,991.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
2,643,991.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
2,643,991.00
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)
9.06 %
12
Type of Reporting Person (See Instructions)
OO, IA
SCHEDULE 13G
CUSIP Number(s):
G2616F101
1
Names of Reporting Persons
Frederick V. Fortmiller, Jr.
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
2,643,991.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
2,643,991.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
2,643,991.00
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)
9.06 %
12
Type of Reporting Person (See Instructions)
HC, IN
SCHEDULE 13G
Item 1.
(a)
Name of issuer:
D. Boral ARC Acquisition I Corp.
(b)
Address of issuer's principal executive offices:
10 East 53rd Street, Suite 3001, New York, NY, 10022
Item 2.
(a)
Name of person filing:
This Statement is filed on behalf of Harraden Circle Investments, LLC ("Harraden Adviser") and Frederick V. Fortmiller, Jr. ("Mr. Fortmiller") (collectively, the "Reporting Persons").
This Statement relates to Shares (as defined herein) held for the accounts of Harraden Circle Investors, LP ("Harraden Fund"), Harraden Circle Special Opportunities, LP ("Harraden Special Op Fund"), Harraden Circle Strategic Investments, LP ("Harraden Strategic Fund"), and Harraden Circle Concentrated, LP ("Harraden Concentrated Fund"). Harraden Adviser serves as investment manager to Harraden Fund, Harraden Special Op Fund, Harraden Strategic Fund, Harraden Concentrated Fund, and other high net worth individuals and, in such capacity, exercises voting and dispositive power over the Shares reported herein. Mr. Fortmiller is the managing member of Harraden Adviser.
(b)
Address or principal business office or, if none, residence:
885 Third Avenue, Suite 2600B, New York, NY 10022
(c)
Citizenship:
Harraden Adviser is a Delaware limited liability company. Mr. Fortmiller is a citizen of the United States of America.
(d)
Title of class of securities:
Class A
(e)
CUSIP No.:
G2616F101
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:
2,643,991
(b)
Percent of class:
9.06 %
(c)
Number of shares as to which the person has:
(i) Sole power to vote or to direct the vote:
0
(ii) Shared power to vote or to direct the vote:
2,643,991
(iii) Sole power to dispose or to direct the disposition of:
0
(iv) Shared power to dispose or to direct the disposition of:
2,643,991
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.
If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required.
Certain funds identified in Item 2(a) have the right to receive any dividends from, or the proceeds from the sale of, the securities reported herein. Such interest of Harraden Circle Investors, LP relates to more than 5 percent of the class of securities reported herein.
Item 7.
Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary.
See disclosure in Item 2 hereof.
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 acquired and are held in the ordinary course of business and 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.
Harraden Circle Investments, LLC
Signature:
/s/ Frederick V. Fortmiller, Jr.
Name/Title:
Frederick V. Fortmiller, Jr., managing member
Date:
08/14/2026
Frederick V. Fortmiller, Jr.
Signature:
/s/ Frederick V. Fortmiller, Jr.
Name/Title:
Frederick V. Fortmiller, Jr.
Date:
08/14/2026
Comments accompanying signature: This Schedule 13G amends the Schedule 13G filed under Rule 13d-1(c) to remove the reporting persons who, after an internal reorganization effective June 30, 2026, are no longer beneficial owners of the securities reported herein and to change the Rule under which this Schedule 13G is filed to Rule 13d-1(b), because the remaining reporting persons qualify to file Schedule 13G under Rule 13d-1(b).
