SCHEDULE 13D

CUSIP No.

89854H102

Name of reporting person

TUCHMAN KENNETH D

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

(a)

(b)

SEC use only

Source of funds (See Instructions)

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

Checkbox not checked

Citizenship or place of organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 6,526,401.00
8	Shared Voting Power 21,326,806.00
9	Sole Dispositive Power 6,526,401.00
10	Shared Dispositive Power 21,326,806.00

Aggregate amount beneficially owned by each reporting person

27,853,207.00

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

Checkbox not checked

Percent of class represented by amount in Row (11)

58.2 %

Type of Reporting Person (See Instructions)

Comment for Type of Reporting Person:

(1) Consists of (i) 14,766,806 shares beneficially owned by Mr. Tuchman in his capacity as the controlling person of Mantucket Capital Management Corporation, the sole general partner of KDT Family, LLLP, (ii) 6,550,000 shares beneficially owned by Mr. Tuchman in his capacity as the sole trustee of KDT Stock Revocable Trust, and (iii) 10,000 shares beneficially owned by Mr. Tuchman's spouse. Mr. Tuchman disclaims beneficial ownership of all shares beneficially owned by his spouse. (2) Based on 47,833,188 shares of Common Stock outstanding as of May 1, 2025, according to information provided by TTEC Holdings, Inc., a Delaware corporation (the "Company").

SCHEDULE 13D

CUSIP No.

89854H102

Name of reporting person

KDT Stock Revocable Trust

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

(a)

(b)

SEC use only

Source of funds (See Instructions)

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

Checkbox not checked

Citizenship or place of organization

COLORADO

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 6,550,000.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 6,550,000.00

Aggregate amount beneficially owned by each reporting person

6,550,000.00

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

Checkbox not checked

Percent of class represented by amount in Row (11)

13.7 %

Type of Reporting Person (See Instructions)

Comment for Type of Reporting Person:

(1) Power is shared with its sole trustee, Kenneth D. Tuchman. (2) Based on 47,833,188 shares of Common Stock outstanding as of May 1, 2025, according to information provided by the Company.

SCHEDULE 13D

CUSIP No.

89854H102

Name of reporting person

KDT Family, LLLP

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

(a)

(b)

SEC use only

Source of funds (See Instructions)

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

Checkbox not checked

Citizenship or place of organization

COLORADO

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 14,766,806.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 14,766,806.00

Aggregate amount beneficially owned by each reporting person

14,766,806.00

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

Checkbox not checked

Percent of class represented by amount in Row (11)

30.9 %

Type of Reporting Person (See Instructions)

Comment for Type of Reporting Person:

(1) Power is shared with its sole general partner, Mantucket Capital Management Corporation, and Kenneth D. Tuchman, the controlling person of Mantucket Capital Management Corporation. (2) Based on 47,833,188 shares of Common Stock outstanding as of May 1, 2025, according to information provided by the Company.

SCHEDULE 13D

CUSIP No.

89854H102

Name of reporting person

Mantucket Capital Management Corporation

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

(a)

(b)

SEC use only

Source of funds (See Instructions)

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

Checkbox not checked

Citizenship or place of organization

COLORADO

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 14,766,806.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 14,766,806.00

Aggregate amount beneficially owned by each reporting person

14,766,806.00

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

Checkbox not checked

Percent of class represented by amount in Row (11)

30.9 %

Type of Reporting Person (See Instructions)

Comment for Type of Reporting Person:

(1) Consists of 14,766,806 shares beneficially owned by Mantucket Capital Management Corporation in its capacity as the sole general partner of KDT Family, LLLP. (2) Based on 47,833,188 shares of Common Stock outstanding as of May 1, 2025, according to information provided by the Company.

SCHEDULE 13D

Item 1.

Security and Issuer

(a)

Title of Class of Securities:

Common Stock, par value $0.01 per share

(b)

Name of Issuer:

TTEC Holdings, Inc.

(c)

Address of Issuer's Principal Executive Offices:

5251 DTC Parkway, Suite 995, Greenwood Village, COLORADO , 80111.

Item 4.

Purpose of Transaction

Item 4 of the 13D is hereby supplemented to include the following information at the end of Item 4: On July 31, 2025, Mr. Tuchman delivered a letter to the Board of Directors of the Company withdrawing his previously disclosed non-binding proposal to acquire all of the outstanding shares of Common Stock not already owned by the Reporting Persons for cash consideration at a purchase price of $6.85 per share of Common Stock. A copy of the letter is filed as Exhibit 99.1 to this Amendment. The Reporting Persons will continue to review their investment in the Company on a continuing basis and may in the future take or propose to take such actions with respect to their investment in the Company as they deem appropriate.

Item 5.

Interest in Securities of the Issuer

(a)

The information set forth on rows 11 and 13 of each of the cover pages of this 13D is incorporated herein by reference. To the knowledge of each of the Reporting Persons, none of the Covered Persons (as defined and identified in the initial 13D) owns beneficially pursuant to Rule 13d-3 of the Act any shares of Common Stock.

(b)

The information set forth in rows 7 through 10 of each of the cover pages of this 13D is incorporated herein by reference.

(c)

None of the Reporting Persons have effected any transactions in the Common Stock in the last sixty (60) days.

(d)

Not applicable.

(e)

Not applicable.

Item 6.

Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer

Item 6 of the 13D is hereby supplemented to incorporate by reference the information set forth in Item 4 above.

Item 7.

Material to be Filed as Exhibits.

Item 7 of the 13D is hereby supplemented by adding the following exhibit: Exhibit Number Description 99.1 Letter, dated July 31, 2025 from Kenneth D. Tuchman to the Board of Directors of TTEC Holdings, Inc.

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.

TUCHMAN KENNETH D

Signature:	/s/ Kenneth D. Tuchman
Name/Title:	Kenneth D. Tuchman
Date:	08/01/2025

KDT Stock Revocable Trust

Signature:	/s/ Kenneth D. Tuchman
Name/Title:	Kenneth D. Tuchman/Sole Trustee
Date:	08/01/2025

KDT Family, LLLP

Signature:	/s/ Kenneth D. Tuchman
Name/Title:	Kenneth D. Tuchman/Assistant Treasurer
Date:	08/01/2025

Mantucket Capital Management Corporation

Signature:	/s/ Kenneth D. Tuchman
Name/Title:	Kenneth D. Tuchman/Assistant Treasurer
Date:	08/01/2025