Capstone Holding Corp. Schedule 13G/A reports joint filing by 3i, Tumim Stone Capital LLC, 3i Management LLC and Maier Joshua Tarlow describing beneficial ownership tied to warrants and convertible notes. The filing bases percentages on 11,453,707 shares outstanding as of April 15, 2026.
The reporting persons state combined beneficial ownership of 1,271,220 shares attributable to 3i (issuable upon warrant exercises and note conversions), and Tumim beneficially owns 47,800 shares. The filing explains interaction of a 4.99% and a 9.99% beneficial‑ownership limitation that governs exercises/conversions and limits issuances.
Positive
None.
Negative
None.
Insights
Joint filing explains capped conversions/exercises tied to ownership limits.
The Schedule 13G describes that 3i holds Warrants exercisable for 405,000 shares and senior secured convertible Notes totaling approximately $1.9 million, together yielding up to 1,271,220 shares under constrained exercise/conversion mechanics.
Operationally, the 4.99% and 9.99% "Blocker" provisions limit post‑transaction beneficial ownership; timing details reference a notice delivered April 21, 2026, effective 61 days thereafter. Subsequent filings will show any exercises/conversions and resulting ownership changes.
Key Figures
Shares outstanding:11,453,707 shares3i beneficial ownership:1,271,220 sharesTumim beneficial ownership:47,800 shares+3 more
6 metrics
Shares outstanding11,453,707 sharesas of April 15, 2026
3i beneficial ownership1,271,220 sharesissuable upon warrants and note conversions
Tumim beneficial ownership47,800 sharesdirectly held by Tumim Stone Capital LLC
Warrants exercisable405,000 sharesWarrants held by 3i
Convertible Notes principal$1.9 millionsenior secured convertible notes held by 3i
Beneficial ownership limits4.99% and 9.99%Blocker provisions limiting exercises/conversions
"exercises are subject to a 4.99% beneficial ownership limitation"
9.99% Blockerregulatory
"conversions of the Notes are subject to a 9.99% beneficial ownership limitation"
Warrantsfinancial
"Warrants exercisable for up to 405,000 shares of Common Stock"
Warrants are special documents that give you the right to buy a company's stock at a set price before a certain date. They are often used as a way for companies to attract investors or raise money, and their value can increase if the company's stock price goes up.
Senior secured convertible notesfinancial
"Notes in the principal aggregate amount of approximately $1.9 million"
A senior secured convertible note is a loan a company issues that sits near the top of its repayment order (senior), is backed by specific assets as collateral (secured), and can be swapped into company shares later (convertible). For investors this matters because it combines lower risk of repayment and legal protection from the collateral with the upside of converting into equity—so it affects both the safety of debt holders and potential dilution for shareholders.
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
UNDER THE SECURITIES EXCHANGE ACT OF 1934
Capstone Holding Corp.
(Name of Issuer)
Common Stock, par value $0.0005 per share
(Title of Class of Securities)
14068E208
(CUSIP Number)
04/22/2026
(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):
14068E208
1
Names of Reporting Persons
3i, 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
1,271,220.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
1,271,220.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
1,271,220.00
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)
9.9 %
12
Type of Reporting Person (See Instructions)
PN
Comment for Type of Reporting Person: As more fully described in Item 4 of this statement on Schedule 13G (this ''Schedule 13G''), such shares and percentage are based on 11,453,707 shares of common stock, par value $0.0005 per share, of the issuer (the ''Common Stock'') outstanding as of April 15, 2026, as disclosed in the issuer's Amendment No. 1 to the Annual Report on Form 10-K for the fiscal year ended December 31, 2025, filed by the issuer with the U.S. Securities and Exchange Commission (the ''SEC'') on April 17, 2026 (the ''Form 10-K/A''). Beneficial ownership consists of 1,271,220 shares of Common Stock issuable in any combination upon any (i) exercises of certain common stock purchase warrants of the issuer (the ''Warrants'') held directly by the reporting person, which exercises are subject to a 4.99% beneficial ownership limitation provision (the ''4.99 Blocker''), and (ii) conversions of senior secured convertible notes of the issuer in the principal aggregate amount of approximately $1.9 million (the ''Notes'') held directly by the reporting person, which conversions are subject to a 9.99% beneficial ownership limitation provision (the ''9.99 Blocker'').
SCHEDULE 13G
CUSIP Number(s):
14068E208
1
Names of Reporting Persons
Tumim Stone Capital 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
47,800.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
47,800.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
47,800.00
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)
0.4 %
12
Type of Reporting Person (See Instructions)
OO
Comment for Type of Reporting Person: As more fully described in Item 4 of this Schedule 13G, such percentage is based on 11,453,707 shares of Common Stock outstanding as of April 15, 2026, as disclosed in the Form 10-K/A. Beneficial ownership consists of 47,800 shares of Common Stock directly held by the reporting person.
SCHEDULE 13G
CUSIP Number(s):
14068E208
1
Names of Reporting Persons
3i Management 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
1,265,915.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
1,265,915.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
1,265,915.00
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)
9.9 %
12
Type of Reporting Person (See Instructions)
OO
Comment for Type of Reporting Person: As more fully described in Item 4 of this Schedule 13G, such shares and percentage are based on 11,453,707 shares of Common Stock outstanding as of April 15, 2026, as disclosed in the Form 10-K/A. Beneficial ownership consists of 47,800 shares of Common Stock indirectly held by the reporting person and 1,218,115 shares of Common Stock issuable in any combination upon any (i) exercises of Warrants held indirectly by the reporting person, which exercises are subject to a 4.99% Blocker, and (ii) conversions of the Notes held indirectly by the reporting person, which conversions are subject to a 9.99% Blocker.
SCHEDULE 13G
CUSIP Number(s):
14068E208
1
Names of Reporting Persons
Maier Joshua Tarlow
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
1,265,915.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
1,265,915.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
1,265,915.00
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)
9.9 %
12
Type of Reporting Person (See Instructions)
IN
Comment for Type of Reporting Person: As more fully described in Item 4 of this Schedule 13G, such shares and percentage are based on 11,453,707 shares of Common Stock outstanding as of April 15, 2026, as disclosed in the Form 10-K/A. Beneficial ownership consists of 47,800 shares of Common Stock indirectly held by the reporting person and 1,218,115 shares of Common Stock issuable in any combination upon (i) any exercises of Warrants held indirectly by the reporting person, which exercises are subject to a 4.99% Blocker, and (ii) conversions of the Notes held indirectly by the reporting person, which conversions are subject to a 9.99% Blocker.
SCHEDULE 13G
Item 1.
(a)
Name of issuer:
Capstone Holding Corp.
(b)
Address of issuer's principal executive offices:
5141 West 122nd Street, Alsip, IL 60803
Item 2.
(a)
Name of person filing:
(i) 3i, LP, a Delaware limited partnership ("3i");
(ii) Tumim Stone Capital LLC, a Delaware limited liability company ("Tumim");
(iii) 3i Management LLC, a Delaware limited liability company ("3i Management''); and
(iv) Maier Joshua Tarlow ("Mr. Tarlow").
The foregoing persons are hereinafter sometimes collectively referred to as the "Reporting Persons". Any disclosures herein with respect to persons other than the Reporting Persons are made on information and belief after making inquiry to the appropriate party.
The Reporting Persons have entered into a Joint Filing Agreement, a copy of which is filed as Exhibit 1 to this Schedule 13G, pursuant to which such Reporting Persons have agreed to file this Schedule 13G and all subsequent amendments jointly in accordance with the provisions of Rule 13d-1(k) of the Act.
The filing of this Schedule 13G should not be construed in and of itself as an admission by any Reporting Person as to beneficial ownership of the shares of Common Stock reported herein.
(b)
Address or principal business office or, if none, residence:
The principal business address of each of the Reporting Persons is 2 Wooster Street, 2nd Floor, New York, NY 10013.
(c)
Citizenship:
3i is a Delaware limited partnership. Tumim is a Delaware limited liability company. 3i Management is a Delaware limited liability company. Mr. Tarlow is a citizen of the United States.
(d)
Title of class of securities:
Common Stock, par value $0.0005 per share
(e)
CUSIP Number(s):
14068E208
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 this item with respect to each Reporting Person is set forth in Rows 5 through 9 and 11 of the cover pages to this Schedule 13G and is incorporated herein by reference for each such Reporting Person.
The share amounts and ownership percentages, as applicable, disclosed on such cover pages as of the date of this Schedule 13G are based on 11,453,707 shares of Common Stock outstanding as of April 15, 2026, as disclosed in the Form 10-K/A. The Reporting Persons are filing this Schedule 13G as a result of 3i's delivery of a notice to the issuer on April 21, 2026, effective 61 days thereafter, to increase the Blockers in the Notes from 4.99% to 9.99%.
As of the date of this Schedule 13G, 3i holds (i) Warrants exercisable for up to 405,000 shares of Common Stock, which exercises are subject to a 4.99% Blocker, and (iii) the Notes in the principal aggregate amount of approximately $1.9 million, conversions of which are subject to a 9.99% Blocker. As of the date of this Schedule 13G, Tumim holds 47,800 shares of Common Stock.
Due to the interaction between the Blockers in each of the Warrants and the Notes, 3i may exercise the Warrants for and/or convert the Notes, in any combination, into an aggregate of 1,271,220 shares of Common Stock as a result of the triggering of the applicable 4.99% and 9.99% Blockers, each of which prohibits 3i from exercising the Warrants for, or converting the Notes into, shares of Common Stock if, as a result of such exercise or conversion, 3i, together with its affiliates and any persons acting as a group together with 3i or any of such affiliates, would beneficially own more than 4.99% or 9.99%, as applicable, of the total number of shares of Common Stock then issued and outstanding immediately after giving effect to such exercise or conversion.
Consequently, 3i beneficially owns 1,271,220shares of Common Stock (the "3i Shares") and Tumim beneficially owns 47,800 shares of Common Stock (the "Tumim Shares", and collectively with the 3i Shares, the "Shares"). 3i has the power to dispose of and the power to vote the 3i Shares beneficially owned by it, which power may be exercised by 3i Management, the general partner of 3i. Tumim is the beneficial owner of the Tumim Shares and has the power to dispose of and the power to vote the Tumim Shares beneficially owned by it, which power may be exercised by 3i Management, the manager of Tumim. Mr. Tarlow, as the manager of 3i Management, has shared power to vote and/or dispose of the Shares beneficially owned by each of 3i, Tumim and 3i Management. Mr. Tarlow does not directly own the Shares. By reason of the provisions of Rule 13d-3 of the Act, Mr. Tarlow may be deemed to beneficially own the Shares beneficially owned by 3i, Tumim and 3i Management, and 3i Management may be deemed to beneficially own the Shares beneficially owned by 3i and Tumim.
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.
If a group has filed this schedule pursuant to §240.13d-1(b)(1)(ii)(K), so indicate under Item 3(k) and attach an exhibit stating the identity and Item 3 classification of each member of the group. If a group has filed this schedule pursuant to §240.13d-1(c) or §240.13d-1(d), attach an exhibit stating the identity of each member of the group.
See Exhibit 1 filed herewith.
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.
3i, LP
Signature:
/s/ Maier Joshua Tarlow
Name/Title:
Maier Joshua Tarlow, Manager of 3i Management LLC, General Partner of 3i, LP
Date:
04/23/2026
Tumim Stone Capital LLC
Signature:
/s/ Maier Joshua Tarlow
Name/Title:
Maier Joshua Tarlow, Manager of 3i Management LLC, Manager of Tumim Stone Capital LLC
What does Capstone Holding's Schedule 13G (CAPS) say about shares outstanding?
It bases ownership percentages on 11,453,707 shares outstanding as of April 15, 2026. The filing uses that figure to calculate reported percentages for 3i, Tumim, 3i Management and Mr. Tarlow and to show how Blocker limits apply to exercises and conversions.
How many shares does 3i beneficially own according to the filing?
3i beneficially owns 1,271,220 shares. That total represents shares issuable upon a combination of warrant exercises and convertible note conversions, constrained by the disclosed 4.99% and 9.99% beneficial‑ownership limitation provisions.
What holdings does Tumim Stone Capital report in the Schedule 13G?
Tumim Stone Capital LLC beneficially owns 47,800 shares. The filing states Tumim's 47,800 shares are directly held and that the ownership percentage is calculated using the 11,453,707 shares outstanding as of April 15, 2026.
What are the "Blocker" provisions described in the filing?
The filing references a 4.99% and a 9.99% beneficial‑ownership limitation. These provisions prevent exercise/conversion if the resulting beneficial ownership would exceed those limits, and 3i delivered a notice on April 21, 2026 to increase certain Blockers effective 61 days later.
How many warrants and convertible notes are disclosed?
3i holds Warrants exercisable for up to 405,000 shares and Notes of approximately $1.9 million principal. The filing links those instruments to the 1,271,220 shares issuable in aggregate under the Blocker interaction described.
