DEFINITIVE COPIES

(File Nos. 333-40819 and 811-08507)

SCHEDULE 14A INFORMATION

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

(Amendment No.      )

Filed by the Registrant x                            Filed by a Party other than the Registrant ¨

Check the appropriate box:

¨ Preliminary Proxy Statement

¨ CONFIDENTIAL, FOR USE OF THE COMMISSION ONLY (AS PERMITTED BY RULE 14A-6(E)(2))

¨ Definitive Proxy Statement

x Definitive Additional Materials

¨ Soliciting Material Pursuant toss.240.14a-11(c) orss.240.14a-12

Ironwood Series Trust

Three Canal Plaza, Suite 600

Portland, Maine 04101

(207) 347-2000

Megan Hadley Koehler

Atlantic Fund Administration, LLC

Three Canal Plaza, Suite 600

Portland, Maine 04101

Copies to:

Joseph R. Fleming, Esq.

DECHERT LLP

200 Clarendon Street, 27th Floor

Boston, Massachusetts 02116

Payment of Filing Fee (Check the appropriate box):

x No Fee Required

¨ Fee computed on table below per Exchange Act Rules 14a-6(i)(1) and 0-11

1) Title of each class of securities to which transaction applies:

2) Aggregate number of securities to which transaction applies:

3) Per unit price or other underlying value of transaction computed pursuant to Exchange Act Rule 0-11:

4) Proposed maximum aggregate value of transaction:

5) Total fee paid:

¨ Fee paid previously with preliminary materials.

¨ Check box if any part of the fee is offset as provided by Exchange Act Rule 0-11(a)(2) and identify the filing for which the offsetting fee was paid previously. Identify the previous filing by registration statement number, or the Form or Schedule and the date of its filing.

1) Amount Previously Paid:

2) Form, Schedule or Registration Statement No.:

3) Filing Party:

4) Date Filed:

Ironwood Isabelle Small Company Stock Fund recently contacted you regarding a Special Meeting of Shareholders. The principal purpose of the Meeting to be held on September 2, 2008, is to approve a new Investment Advisory Agreement. The Fund’s records indicate that we have not received your vote. We urge you to vote as soon as possible in order to allow the Fund to obtain a sufficient number of votes to hold the Meeting as scheduled.

1-866-615-7264

Voting is	The Fund has made it very easy for you to vote. Choose one of the following methods:
very important.	•      Speak to a live Proxy Specialist by calling the number above. We can answer any of your questions and record your vote. (open: M-F 9:30am – 9pm, Sat 10am – 6pm ET)
Please vote now to be sure your vote is received in time for the	•      Log on to the website noted on your proxy card and enter your control number printed on the card, and vote by following the on-screen prompts.
September 2, 2008 Special Meeting of Shareholders.	•      Call the phone number on the proxy card and enter the control number printed on the card and follow the touchtone prompts.
	•      Mail in your signed proxy card in the envelope provided.

Voting takes only a few minutes.

PLEASE VOTE TODAY.

Ironwood Isabelle Small Company Stock Fund

Solicitation Script

Toll Free Number 866-615-7264

Greeting:

Hello, is Mr. /Ms.                     available please?

Hi Mr. /Ms.                     , my name is                                  and I am calling on behalf of the Ironwood Isabelle Small Company Stock Fund on a recorded line. Recently you were mailed proxy materials for the upcoming Special Meeting of Shareholders. Have you received this material?

If Received:

Your Fund’s Board of Trustees/Directors is recommending that you vote in favor of the proposal outlined in the proxy statement. For your convenience, would you like to vote now over the phone?

IF Yes:

The process will only take a few moments.

Again, my name is                                 , a proxy voting specialist on behalf of the Ironwood Isabelle Small Company Stock Fund. Today’s date is              and the time is              Eastern Time.

Would you please state your full name and full mailing address?

Are you authorized to vote all shares?

(If yes, proceed with voting process)

(If no, identify with shareholder which accounts s/he is authorized to vote and proceed with voting process)

The Board of Trustees/Directors has unanimously approved the proposal as set forth in the material you received and recommends a favorable vote for this proposal. How do you wish to vote your account/each of your accounts?

For Favorable Vote:

Mr. /Ms.                                  I have recorded your vote as follows, for all of your Ironwood Isabelle Small Company Stock Fund accounts you are voting in favor of the proposal as set forth in the proxy materials you received.

For Non-Favorable Vote:

Mr./Ms.                                  I have recorded your vote as follows, for all of your Ironwood Isabelle Small Company Stock Fund accounts you are voting against the proposal as set forth in the proxy materials you received.

For Abstentions:

Mr./Ms.                                  I have recorded your vote as follows, for all of your Ironwood Isabelle Small Company Stock Fund accounts you are abstaining on the proposal as set forth in the proxy materials you received.

You will receive a written confirmation of your vote. If you wish to make any changes you may contact us by calling 866-615-7264. Thank you very much for your participation and have a great day/evening.

If Unsure of voting:

Would you like me to review the proposal with you? (Answer all the shareholders questions and ask them if they wish to vote over the phone. If they agree, return to authorized voting section)

If Not Received:

I can resend the materials to you. Do you have an email address this can be sent to?

(If yes: Type email address in the notes and read it back phonetically to the shareholder) (If not, continue with standard script) Can you please verify your mailing address? (Verify entire address, including street name, number, town, state & zip)

Thank you. You should receive these materials shortly and the materials will inform you of the methods available to you to cast your vote, one of which is to call us back at the toll free number listed in the material.

If Shares were sold after June 27, 2008

I understand Mr./Ms.                                 , however you were a shareholder on the record date and therefore you are still entitled to vote your shares. Would you have any objections to voting your shares now?

If Not Interested:

I am sorry for the inconvenience. Please be aware that as a shareholder, your vote is very important. Please fill out and return your proxy card at your earliest convenience. If you would rather not do that, you can always vote via the other methods outlined in the proxy materials. Thank you again for your time today, and have a wonderful day/evening.

ANSWERING MACHINE MESSAGE:

Hello, my name is                                  and I am a proxy voting specialist for the Ironwood Isabelle Small Company Stock Fund. You should have received proxy material in the mail concerning the Special Meeting of Shareholders to be held on September 2, 2008.

Your participation is very important. To vote over the telephone, call toll-free at 866-615-7264 and a proxy voting specialist will assist you with voting your shares. Specialists are available Monday through Friday, 9:30 AM to 9:00 PM and Saturday 10:00AM to 6:00 PM Eastern Time. Voting takes just a few moments and will benefit all shareholders.

Thank you for your prompt attention to this matter.

AUTOMATED ANSWERING MACHINE MESSAGE

Hello, this is the Broadridge Proxy Service Center calling with an important message on behalf of the Ironwood Isabelle Small Company Stock Fund. You should have received proxy material in the mail concerning the Special Meeting of Shareholders to be held on September 2, 2008.

Your participation is very important. To vote over the telephone, call toll-free at 866-615-7264 and a proxy voting specialist will assist you with voting your shares. Specialists are available Monday through Friday, 9:30 AM – 9:00 PM and Saturday 10:00AM – 6:00 PM Eastern Time. Voting takes just a few moments and will benefit all shareholders.

Thank you for your prompt attention to this matter.

INBOUND - CLOSED RECORDING

“Thank you for calling the Broadridge Proxy Services Center for the Ironwood Isabelle Small Company Stock Fund. Our offices are now closed. Please call us back during our normal business hours which are,

Monday through Friday, 9:30 AM to 9:00 PM and Saturday 10:00 AM to 6:00 PM Eastern Time. Thank you.

INBOUND - CALL IN QUEUE MESSAGE

“Thank you for calling the Broadridge Proxy Services Center for the Ironwood Isabelle Small Company Stock Fund. Our proxy specialists are currently assisting other shareholders. Your call is important to us. Please continue to hold and your call will be answered in the order in which it was received.

END OF CAMPAIGN MESSAGE

“Thank you for calling the Broadridge Proxy Services Center for the Ironwood Isabelle Small Company Stock Fund. The Shareholder meeting has been held and as a result, this toll free number is no longer in service for proxy related shareholder calls. If you have questions about your Ironwood Isabelle Small Company Stock Fund, please contact your Financial Advisor or call the Ironwood Isabelle Small Company Stock Fund at 800-472-6114. Thank you for investing with the Ironwood Isabelle Small Company Stock Fund.”