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 x                            Filed by a Party other than the Registrant ¨

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¨ 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 to Section 240.14a-12

iShares, Inc.

iShares Trust

(Name of Registrant as Specified In Its Charter)

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

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x No fee required.

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

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¨ 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.

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Dear iShares Shareholder,

Barclays Global Fund Advisors, the adviser to the iShares® Funds, is being acquired by BlackRock, Inc. You should have received multiple proxy packages in the mail regarding two special shareholder meetings related to the transaction.

Our records show you have not yet voted on the proposals presented for shareholder approval. Although participation by shareholders to date has been positive, we are still short of the necessary participation rate required to hold the special meetings on November 4, 2009. We urge you to please vote today in order to hold the special meetings as scheduled and to avoid future reminders and the possibility of an adjournment.

The Board of Directors of iShares, Inc. and the Board of Trustees of iShares Trust have unanimously approved the proposals and recommend that shareholders vote in favor of each proposal.

We’ve provided four easy ways to cast your vote:

FASTEST OPTION—Talk to a Live Agent

1-866-450-8471

Call Monday through Friday 9:30 AM to 12:00 Midnight (ET), Saturday from 10:00 AM to 9:00 PM (ET). Estimated call time is less than three minutes, no matter how many different iShares Funds you own.

Vote by Telephone

For touch-tone voting, please refer to your proxy cards for a toll-free number and recorded instructions.

Vote by Mail

Complete and sign the proxy cards, then return them in the enclosed over-night envelope.

Vote Online

Go to www.proxyvote.com and enter the control number that appears on each of your proxy cards. The site will give you all further instructions.

Thank you in advance for your participation in this important vote.

Dear iShares Shareholder,

A few weeks ago, we mailed you a proxy package and voting cards relating to two important shareholder meetings of the iShares® Funds and the acquisition of Barclays Global Fund Advisors, the adviser to the iShares® Funds, by BlackRock, Inc.

Our records indicate we still have not yet received your vote on the proposals presented for shareholder approval. Although participation by shareholders to date has been positive, we are still short of the necessary participation rate required to hold the special meetings on November 4, 2009. We urge you to please vote today in order to hold the special meetings as scheduled and to avoid future reminders and the possibility of an adjournment. We encourage all shareholders to participate in the governance of their iShares® Funds.

The Board of Directors of iShares, Inc. and the Board of Trustees of iShares Trust have unanimously approved each proposal and recommend that shareholders vote in favor of each proposal.

PLEASE VOTE IMMEDIATELY.

We’ve provided four quick, easy ways to cast your vote:

FASTEST OPTION—Talk to a Live Agent

Call 1-866-450-8471 Monday through Friday 9:30 AM to 12:00 Midnight (ET), Saturday from 10:00 AM to 9:00 PM (ET). Estimated call time is less than three minutes, no matter how many different iShares Funds you own.

Vote by Telephone

For touch-tone voting, please refer to your proxy cards for a toll-free number and recorded instructions.

Vote by Mail

Complete and sign the proxy cards, then return them in the postage-paid envelope.

Vote Online

Go to www.proxyvote.com and enter the control number that appears on each of your proxy cards. The site will give you all further instructions.

Thank you for your participation.

Dear iShares Shareholder,

A few weeks ago, we emailed you a proxy package relating to two important shareholder meetings of the iShares® Funds and the acquisition of Barclays Global Fund Advisors, the adviser to the iShares® Funds, by BlackRock, Inc.

Our records indicate we still have not yet received your vote on the proposals presented for shareholder approval. Although participation by shareholders to date has been positive, we are still short of the necessary participation rate required to hold the special meetings on November 4, 2009. We urge you to please vote today in order to hold the special meetings as scheduled and to avoid future reminders and the possibility of an adjournment. We encourage all shareholders to participate in the governance of their iShares® Funds.

The Board of Directors of iShares, Inc. and the Board of Trustees of iShares Trust have unanimously approved each proposal and recommend that shareholders vote in favor of each proposal.

PLEASE VOTE IMMEDIATELY.

We’ve provided three quick, easy ways to cast your vote:

FASTEST OPTION—Talk to a Live Agent

Call 1-866-450-8471 Monday through Friday 9:30 AM to 12:00 Midnight (ET), Saturday from 10:00 AM to 9:00 PM (ET). Estimated call time is less than three minutes, no matter how many different iShares Funds you own.

Vote Online

Go to www.proxyvote.com (a link is embedded with this email) and enter the control number that appears on each of your emails regarding the proxy. The site will give you further instructions. Note, if you own multiple iShares Funds, you will have to enter multiple control numbers to vote.

Vote by Telephone

For touch-tone voting, please refer to your proxy statement for a toll-free number.

Thank you for your participation.