Additional Proxy Soliciting Materials (Form DEFA14A)

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

Filed by the Registrant ☒

Filed by a Party other than the Registrant ☐

Check the appropriate box:

The Hartford Mutual Funds, Inc.

The Hartford Mutual Funds II, Inc.

Hartford Funds Exchange-Traded Trust

Lattice Strategies Trust

Hartford Series Fund, Inc.

(Name of Registrants as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check the appropriate box):

Good (morning, afternoon, evening). My name is (AGENT'S FULL NAME).

May I please speak with (SHAREHOLDER'S FULL NAME)?

(Re-Greet If Necessary)

I am calling on a recorded line regarding your current investment with the Hartford Funds. The reason for my call is to inform you that the Special Meeting of Shareholders that was scheduled to take place on November 5, 2026 has been adjourned to November 19, 2026 due to a lack of shareholder participation.

At this time, we are offering shareholders the convenience of casting their proxy votes by phone. The Boards are recommending a vote "In Favor" of the proposals.

Would you like to vote along with the recommendation of the Boards?

(Pause For Response)

(Review Voting Options with Shareholder If Necessary)

If we identify any additional accounts you own with the Hartford Funds before the meeting takes place, would you like to vote those accounts in the same manner as well?

(Pause For Response)

*Confirmation - I am recording your (Recap Voting Instructions). Today (Today's Date
& Time).

For confirmation purposes:

Thank you. You will receive written confirmation of your vote within 3 to 5 business days. Upon receipt, please review and retain for your records. If you should have any questions, please call the toll free number listed on the confirmation. Mr. /Ms. ___________, your vote is important and your time is greatly appreciated. Thank you and have a good (morning, afternoon, evening.)

Good (morning, afternoon, evening). My name is (AGENT'S FULL NAME).

May I please speak with (SHAREHOLDER'S FULL NAME)?

(Re-Greet If Necessary)

I am calling on a recorded line regarding your current investment in the Hartford Funds.

The reason for my call is to inform you that the Special Meeting of Shareholders that was scheduled to take place on November 5, 2026 has been adjourned to November 19, 2026 due to a lack of shareholder participation.

The Board is recommending a vote "In Favor" of the proposals, but you may also cast an "Against" or "Abstain" vote.

Would you like to vote "In Favor", "Against" or "Abstain"?

(Pause For Response)

(Review Voting Options with Shareholder If Necessary)

If we identify any additional accounts you own with the Hartford Funds before the meeting takes place, would you like to vote those accounts in the same manner as well?

(Pause For Response)

*Confirmation - I am recording your (Recap Voting Instructions). Today (Today's Date
& Time).

For confirmation purposes:

Thank you. You will receive written confirmation of this vote within 3 to 5 business days. Upon receipt, please review and retain for your records. If you should have any questions, please call the toll free number listed on the confirmation. Mr. /Ms. ___________, your vote is important and your time is greatly appreciated. Thank you and have a good (morning, afternoon, evening.)