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<P STYLE="font: 18pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>UNITED STATES</B></P>

<P STYLE="font: 18pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>SECURITIES AND EXCHANGE COMMISSION</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">WASHINGTON, D.C. 20549</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 18pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>FORM 8-K</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>CURRENT REPORT</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Pursuant to Section 13 or 15(d) of the
Securities Exchange Act of 1934</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">Date of Report (Date of Earliest Event Reported):
October 25, 2012</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-size: 18pt"><B>ACADIA
REALTY TRUST</B></FONT><BR>
<FONT STYLE="font-size: 10pt">(Exact name of registrant as specified in its charter)</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 32%; text-align: center">Maryland</TD>
    <TD STYLE="width: 2%; text-align: center">&nbsp;</TD>
    <TD STYLE="width: 32%; text-align: center">1-12002</TD>
    <TD STYLE="width: 2%; text-align: center">&nbsp;</TD>
    <TD STYLE="width: 32%; text-align: center">23-2715194</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center">(State or other</TD>
    <TD STYLE="text-align: center">&nbsp;</TD>
    <TD STYLE="text-align: center">(Commission</TD>
    <TD STYLE="text-align: center">&nbsp;</TD>
    <TD STYLE="text-align: center">(I.R.S. Employer</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center">jurisdiction of incorporation)</TD>
    <TD STYLE="text-align: center">&nbsp;</TD>
    <TD STYLE="text-align: center">File Number)</TD>
    <TD STYLE="text-align: center">&nbsp;</TD>
    <TD STYLE="text-align: center">Identification No.)</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">1311 Mamaroneck Avenue<BR>
Suite 260<BR>
White Plains, New York 10605<BR>
(Address of principal executive offices) (Zip Code)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(914) 288-8100<BR>
(Registrant's telephone number, including area code)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(Former name or former address, if changed
since last report)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Check the appropriate box below if the Form 8-K filing is intended
to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Wingdings">&uml;</FONT> Written communications
pursuant to Rule 425 under the Securities Act (17 CFR 230.425 )</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Wingdings">&uml;</FONT> Soliciting
material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Wingdings">&uml;</FONT> Pre-commencement
communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Wingdings">&uml;</FONT> Pre-commencement
communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>&nbsp;</B></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>Item 8.01.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other
Events.</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On October 25, 2012, Acadia Realty Trust
(the &ldquo;Company&rdquo;) announced that it commenced an underwritten public offering (the &ldquo;Offering&rdquo;) of its common
shares of beneficial interest (&ldquo;Common Shares&rdquo;). A copy of that press release is attached as Exhibit 99.1 hereto.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On October 26, 2012, the Company issued
a press release announcing the pricing of the Offering. A copy of that press release is attached as Exhibit 99.2 hereto.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On October 25, 2012, the Company entered
into an underwriting agreement (the &ldquo;Underwriting Agreement&rdquo;) with Barclays Capital Inc. (the &ldquo;Underwriter&rdquo;),
pursuant to which the Company agreed to sell to the Underwriter 3,450,000 of its common shares of beneficial interest (&ldquo;Common
Shares&rdquo;), including 450,000 Common Shares issued pursuant to the Underwriter&rsquo;s exercise in full of its option to purchase
additional shares, at a price of $24.91 per Common Share. The 3,450,00 Common Shares were offered and sold pursuant to a prospectus
supplement, dated October 25, 2012 and related prospectus, dated April 6, 2012, relating to the Company&rsquo;s shelf registration
statement on Form S-3 (File No. 333-180607). A copy of the Underwriting Agreement is attached hereto as Exhibit 1.1 and is incorporated
herein by reference.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On October 31, 2012, the Company and the
Underwriter closed the offering and Venable LLP delivered its legality opinion with respect to the Common Shares to be issued in
the Offering. A copy of the legality opinion is attached hereto as Exhibit 5.1 and is incorporated herein by reference.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>Item 9.01&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Financial
Statements and Exhibits.</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">(d)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Exhibits</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 8%">1.1</TD>
    <TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 90%">Underwriting Agreement, dated October 25, 2012, by and among Acadia Realty Trust and Barclays
    Capital Inc.</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-size: 10pt">5.1</FONT></TD>
    <TD>&nbsp;</TD>
    <TD>Opinion of Venable LLP as to legality of the securities</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>23.1</TD>
    <TD>&nbsp;</TD>
    <TD>Consent of Venable LLP (included in Exhibit 5.1)</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>99.1</TD>
    <TD>&nbsp;</TD>
    <TD>Press Release dated October 25, 2012.</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>99.2</TD>
    <TD>&nbsp;</TD>
    <TD>Press Release dated October 26, 2012.</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>&nbsp;</B></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>SIGNATURES</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Pursuant to the requirements of the Securities Exchange Act
of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 50%; font-weight: bold">&nbsp;</TD>
    <TD STYLE="width: 30%; font-weight: bold; text-align: right">ACADIA REALTY TRUST</TD>
    <TD STYLE="width: 20%; font-weight: bold; text-align: center">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: right">(Registrant)</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center">Date: October 31, 2012</TD>
    <TD COLSPAN="2">By: /s/ Jonathan Grisham</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="padding-left: 0.12in">Name:&nbsp; Jonathan Grisham</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="padding-left: 0.12in">Title: Sr. Vice President</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="padding-left: 0.24in">and Chief Financial Officer</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75pt"><B>&nbsp;</B></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>EXHIBIT INDEX</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD NOWRAP STYLE="width: 8%; border-bottom: Black 1pt solid">Exhibit&nbsp;Number&nbsp;&nbsp;&nbsp;</TD>
    <TD NOWRAP STYLE="width: 2%; padding-bottom: 1pt">&nbsp;</TD>
    <TD NOWRAP STYLE="width: 90%; border-bottom: Black 1pt solid">Description</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>(d)</TD>
    <TD>&nbsp;</TD>
    <TD>Exhibits</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>1.1</TD>
    <TD>&nbsp;</TD>
    <TD>Underwriting Agreement, dated October 25, 2012, by and among Acadia Realty Trust and Barclays Capital
    Inc.</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD><FONT STYLE="font-size: 10pt">5.1</FONT></TD>
    <TD>&nbsp;</TD>
    <TD>Opinion of Venable LLP as to legality of the securities</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>23.1</TD>
    <TD>&nbsp;</TD>
    <TD>Consent of Venable LLP (included in Exhibit 5.1)</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>99.1</TD>
    <TD>&nbsp;</TD>
    <TD>Press Release dated October 25, 2012.</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>99.2</TD>
    <TD>&nbsp;</TD>
    <TD>Press Release dated October 26, 2012.</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right"><B><I>&nbsp;</I></B></P>

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{"company-data": {"conformed-name": "ACADIA REALTY TRUST", "cik": "0000899629", "assigned-sic": "6798", "irs-number": "232715194", "state-of-incorporation": "MD", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "001-12002", "film-number": "121172043"}, "business-address": {"street1": "1311 MAMARONECK AVENUE", "street2": "SUITE 260", "city": "WHITE PLAINS", "state": "NY", "zip": "10605", "phone": "914-288-8100"}, "mail-address": {"street1": "1311 MAMARONECK AVENUE", "street2": "SUITE 260", "city": "WHITE PLAINS", "state": "NY", "zip": "10605"}, "former-company": {"former-conformed-name": "MARK CENTERS TRUST", "date-changed": "19930329"}}
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
FORM 8-K
CURRENT REPORT
Pursuant to Section 13 or 15(d) of the
Securities Exchange Act of 1934
Date of Report (Date of Earliest Event Reported):
October 25, 2012
ACADIA
REALTY TRUST
(Exact name of registrant as specified in its charter)
Maryland
1-12002
23-2715194
(State or other
(Commission
(I.R.S. Employer
jurisdiction of incorporation)
File Number)
Identification No.)
1311 Mamaroneck Avenue
Suite 260
White Plains, New York 10605
(Address of principal executive offices) (Zip Code)
(914) 288-8100
(Registrant's telephone number, including area code)
(Former name or former address, if changed
since last report)
Check the appropriate box below if the Form 8-K filing is intended
to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
¨
Written communications
pursuant to Rule 425 under the Securities Act (17 CFR 230.425 )
¨
Soliciting
material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
¨
Pre-commencement
communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
¨
Pre-commencement
communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Item 8.01.            Other
Events.
On October 25, 2012, Acadia Realty Trust
(the "Company") announced that it commenced an underwritten public offering (the "Offering") of its common
shares of beneficial interest ("Common Shares"). A copy of that press release is attached as Exhibit 99.1 hereto.
On October 26, 2012, the Company issued
a press release announcing the pricing of the Offering. A copy of that press release is attached as Exhibit 99.2 hereto.
On October 25, 2012, the Company entered
into an underwriting agreement (the "Underwriting Agreement") with Barclays Capital Inc. (the "Underwriter"),
pursuant to which the Company agreed to sell to the Underwriter 3,450,000 of its common shares of beneficial interest ("Common
Shares"), including 450,000 Common Shares issued pursuant to the Underwriter's exercise in full of its option to purchase
additional shares, at a price of $24.91 per Common Share. The 3,450,00 Common Shares were offered and sold pursuant to a prospectus
supplement, dated October 25, 2012 and related prospectus, dated April 6, 2012, relating to the Company's shelf registration
statement on Form S-3 (File No. 333-180607). A copy of the Underwriting Agreement is attached hereto as Exhibit 1.1 and is incorporated
herein by reference.
On October 31, 2012, the Company and the
Underwriter closed the offering and Venable LLP delivered its legality opinion with respect to the Common Shares to be issued in
the Offering. A copy of the legality opinion is attached hereto as Exhibit 5.1 and is incorporated herein by reference.
Item 9.01            Financial
Statements and Exhibits.
(d)           Exhibits
1.1
Underwriting Agreement, dated October 25, 2012, by and among Acadia Realty Trust and Barclays
    Capital Inc.
5.1
Opinion of Venable LLP as to legality of the securities
23.1
Consent of Venable LLP (included in Exhibit 5.1)
99.1
Press Release dated October 25, 2012.
99.2
Press Release dated October 26, 2012.
SIGNATURES
Pursuant to the requirements of the Securities Exchange Act
of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
ACADIA REALTY TRUST
(Registrant)
Date: October 31, 2012
By: /s/ Jonathan Grisham
Name:  Jonathan Grisham
Title: Sr. Vice President
and Chief Financial Officer
EXHIBIT INDEX
Exhibit Number
Description
(d)
Exhibits
1.1
Underwriting Agreement, dated October 25, 2012, by and among Acadia Realty Trust and Barclays Capital
    Inc.
5.1
Opinion of Venable LLP as to legality of the securities
23.1
Consent of Venable LLP (included in Exhibit 5.1)
99.1
Press Release dated October 25, 2012.
99.2
Press Release dated October 26, 2012.