Millstreet discloses 12.14% Diebold Nixdorf (DBD) stake and June sales

Rhea-AI Filing Summary

Diebold Nixdorf, Inc. received an Amendment No. 5 to a Schedule 13D from Millstreet Capital Management LLC and related reporting persons. They report beneficial ownership of 4,204,432 common shares, representing 12.14% of the company’s common stock, with shared voting and dispositive power over all such shares.

The filing notes several open market sales of Diebold Nixdorf common shares in June 2026, including 228,723 shares sold on June 24, 2026 at an average price of $83.9496 and 159,675 shares sold on June 12, 2026 at an average price of $82.1184. Millstreet Credit Fund LP is identified as having the right to receive dividends or sale proceeds on more than five percent of the outstanding common shares.

Key Figures

Beneficial ownership: 4,204,432 shares Ownership percentage: 12.14% June 8, 2026 sale: 88,334 shares at $82.9917 +3 more

6 metrics

Beneficial ownership 4,204,432 shares Diebold Nixdorf common shares beneficially owned by each reporting person

Ownership percentage 12.14% Percent of Diebold Nixdorf common stock class represented by 4,204,432 shares

June 8, 2026 sale 88,334 shares at $82.9917 Open market sale of Diebold Nixdorf common shares

June 12, 2026 sale 159,675 shares at $82.1184 Open market sale of Diebold Nixdorf common shares

June 24, 2026 sale 228,723 shares at $83.9496 Open market sale of Diebold Nixdorf common shares

Event date 06/24/2026 Date of event requiring filing of this Schedule 13D/A amendment

Key Terms

beneficially owned, shared voting power, shared dispositive power, open market sales transactions, +2 more

6 terms

beneficially owned financial

"Aggregate amount beneficially owned by each reporting person 4,204,432.00"

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 power financial

"Shared Voting Power 4,204,432.00"

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 power financial

"Shared Dispositive Power 4,204,432.00"

open market sales transactions financial

"other than the open market sales transactions described below"

investment manager financial

"Millstreet Credit Fund LP, for which Millstreet serves as investment manager"

Schedule 13D regulatory

"previously filed a statement on Schedule 13G to report the acquisition"

A Schedule 13D is a legal document that investors file with regulators when they buy a large enough stake in a company to potentially influence its management or decisions. It provides details about the investor’s intention, ownership stake, and plans, helping other investors understand who is gaining control and what their motives might be.

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Available on EDGAR 06/26/2026 - 04:02 PM Accepted by SEC EDGAR 06/26/2026 - 04:01 PM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13D

Under the Securities Exchange Act of 1934

(Amendment No. 5)

DIEBOLD NIXDORF, Inc

(Name of Issuer)

Common Shares, $0.01 par value per share

(Title of Class of Securities)

0000000000

(CUSIP Number)

Janet Kastrud, CCO
Millstreet Capital Management, 545 Boylston St., 8th Floor
Boston, MA, 02116
617-939-0030

(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)

06/24/2026

(Date of Event Which Requires Filing of This Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box.

The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

schemaVersion:

SCHEDULE 13D

CUSIP Number(s): 0000000000

1

Name of reporting person

Millstreet Capital Management LLC

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

AF

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 4,204,432.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 4,204,432.00

11

Aggregate amount beneficially owned by each reporting person

4,204,432.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

12.14 %

14

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13D

CUSIP Number(s): 0000000000

1

Name of reporting person

Connolly Brian D

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

AF

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 4,204,432.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 4,204,432.00

11

Aggregate amount beneficially owned by each reporting person

4,204,432.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

12.14 %

14

Type of Reporting Person (See Instructions)

IN, HC

SCHEDULE 13D

CUSIP Number(s): 0000000000

1

Name of reporting person

Kelleher Craig

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

AF

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 4,204,432.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 4,204,432.00

11

Aggregate amount beneficially owned by each reporting person

4,204,432.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

12.14 %

14

Type of Reporting Person (See Instructions)

IN, HC

SCHEDULE 13D

Item 1.	Security and Issuer
(a)	Title of Class of Securities: Common Shares, $0.01 par value per share
(b)	Name of Issuer: DIEBOLD NIXDORF, Inc
(c)	Address of Issuer's Principal Executive Offices: 350 ORCHARD AVE NE, NORTH CANTON, OHIO , 44720.
Item 1 Comment: This Amendment is being filed to amend Item 5 of the Schedule 13D.
Item 5.	Interest in Securities of the Issuer
(a)	See Items 7-13 of the cover pages.
(b)	See Items 7-13 of the cover pages.
(c)	The Reporting Persons did not effect any transactions in the Company's Common Shares during the sixty day period prior to the filing of this Schedule 13D that have not been previously reported, other than the open market sales transactions described below: Date No. Shares Sold Price 06/08/2026 88,334 $82.9917 06/10/2026 17,660 $82.0822 06/11/2026 1,108 $82.0600 06/12/2026 159,675 $82.1184 06/15/2026 1,765 $83.9118 06/24/2026 228,723 $83.9496 06/25/2026 2,741 $85.0550
(d)	Millstreet Credit Fund LP, for which Millstreet serves as investment manager, has the right to receive and/or the power to direct the receipt of dividends from, or the proceeds from the sale of, more than five percent of the Common Shares outstanding.
(e)	Not applicable.

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.

Millstreet Capital Management LLC

Signature:	/s/ Craig M. Kelleher
Name/Title:	Craig M. Kelleher / Managing Member
Date:	06/26/2026

Connolly Brian D

Signature:	/s/ Brian D. Connolly
Name/Title:	Brian D. Connolly
Date:	06/26/2026

Kelleher Craig

Signature:	/s/ Craig M. Kelleher
Name/Title:	Craig M. Kelleher
Date:	06/26/2026

FAQ

What ownership stake in Diebold Nixdorf (DBD) does Millstreet report?

Millstreet Capital Management and related reporting persons report beneficial ownership of 4,204,432 Diebold Nixdorf common shares, representing 12.14% of the outstanding class. This stake includes shared voting and shared dispositive power over all reported shares.

Which entities are the reporting persons in this Diebold Nixdorf (DBD) Schedule 13D/A?

The reporting persons are Millstreet Capital Management LLC, Brian D. Connolly, and Craig Kelleher. Each reports beneficial ownership of the same 4,204,432 Diebold Nixdorf common shares, with shared voting and dispositive power rather than sole authority.

What recent share sale transactions in Diebold Nixdorf (DBD) does Millstreet disclose?

The filing lists open market sales in June 2026, including 88,334 shares at $82.9917 on June 8, 159,675 shares at $82.1184 on June 12, and 228,723 shares at $83.9496 on June 24, among other smaller trades.

How much voting power over Diebold Nixdorf (DBD) shares does Millstreet have?

The reporting persons indicate 0 sole voting power and 4,204,432 shares of shared voting power. They also report the same 4,204,432 shares as having shared dispositive power, reflecting coordinated control rather than individual authority.

What percentage of Diebold Nixdorf (DBD) shares can Millstreet Credit Fund LP receive proceeds from?

Millstreet Credit Fund LP, for which Millstreet serves as investment manager, has rights to dividends or sale proceeds from more than five percent of Diebold Nixdorf’s outstanding common shares, according to the interest-in-securities disclosure in the filing.

Did Millstreet report any unreported prior trades in Diebold Nixdorf (DBD) shares?

The reporting persons state they did not effect additional transactions in Diebold Nixdorf common shares during the sixty days before the filing that had not already been reported, other than the open market sales transactions specifically listed for June 2026.