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): February 8, 2006

                           BANKFINANCIAL CORPORATION
                           --------------------------
               (Exact Name of Registrant as Specified in Charter)

         Maryland                       0-51331                    75-3199276
- ----------------------------        ------------------             ----------
(State or Other Jurisdiction)      (Commission File No.)        (I.R.S. Employer
      of Incorporation)                                      Identification No.)


15W060 North Frontage Road, Burr Ridge, Illinois                     60527
- ------------------------------------------------                   --------
(Address of Principal Executive Offices)                           (Zip Code)

Registrant's telephone number, including area code:  (630) 242-7700
                                                     --------------



                                 Not Applicable
                                 --------------
          (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 (see General Instruction A.2. below):

[  ] 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 5.04. Temporary Suspension of Trading Under Registrant's Employee Benefit Plans -------------------------------------------------------------- On February 8, 2006, BankFinancial Corporation (the "Company") provided notice to all of its directors and executive officers of an upcoming blackout period under the Company's and Subsidiaries Associate Investment Plan (the "401(k) Plan") due to the transfer of assets in the 401(k) Plan in connection with a change in retirement plan vendors. The blackout period is expected to begin on or about March 10, 2006, and end on or about March 19, 2006. This Form 8-K is being filed to comply with the SEC requirement that notice of a covered blackout period under the 401(k) Plan be given to directors and executive officers of the Company and also furnished to the SEC under cover of Form 8-K. The notice being sent to those persons on February 8, 2006 is being filed as Exhibit 99.1 to this Form 8-K and is incorporated by reference to this Item. Item 9.01 Financial Statements and Exhibits -------------------------------- (a) Financial Statements of Businesses Acquired. Not applicable (b) Pro Forma Financial Information. Not Applicable (c) Exhibits. Exhibit No. Description ---------- ------------ 99.1 Notice of Blackout Period dated February 8, 2006 to Directors and Executive Officers of BankFinancial Corporation 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. BANKFINANCIAL CORPORATION DATE: February 8, 2006 By: ------------------------------------------- F. Morgan Gasior Chairman of the Board, Chief Executive Officer and President

                   Important Notice Concerning Limitations on
                   Trading in BankFinancial Corporation Stock

                                                               February 8, 2006

To:  Executive Officers and Directors of BankFinancial Corporation

From:  BankFinancial Corporation


1.   As you may know,  a  "blackout  period"  will be  imposed  on  transactions
     involving the BankFinancial  Corporation  ("BankFinancial") Stock Fund (the
     "BankFinancial  Stock  Fund")  under  the  BankFinancial  and  Subsidiaries
     Associate  Investment  Plan (the  "401(k)  Plan").  This  blackout  period,
     described in more detail  below,  is  necessary in order for  participants'
     accounts in the 401(k) Plan to be transferred  from ING to The Principal in
     connection  with  the  change  in  retirement   plan  vendors.   Under  the
     Sarbanes-Oxley  Act of  2002,  the  executive  officers  and  directors  of
     BankFinancial  will generally be prohibited  from engaging in  transactions
     involving  BankFinancial  equity  securities  (including  options and other
     derivatives based on BankFinancial stock) during this blackout period.

2.   As a result of the  transfer of plan assets from ING to  Principal,  during
     the blackout  period  participants  in the 401(k) Plan will be  temporarily
     unable to (1) make  exchanges into or out of the  BankFinancial  Stock Fund
     under the 401(k)  Plan,  (2) take  distributions  of money  invested in the
     BankFinancial  Stock  Fund,  and (3) take  loans of money  invested  in the
     BankFinancial Stock Fund.

3.   The  blackout  period for the 401(k) Plan is expected to begin on March 10,
     2006,  and end the week of March  19,  2006,  provided,  however,  that the
     blackout  period may be extended  due to events that are beyond the control
     of  BankFinancial.  We will notify you of any changes that affect the dates
     of the  blackout  period.  In  addition,  you can confirm the status of the
     blackout     period    by     contacting     Laura    M.     Dilallo     at
     LDilallo@bankfinancial.com, or by calling (630) 242-7051.

4.   Generally,  during the blackout period, you are prohibited from directly or
     indirectly,  purchasing,  selling  or  otherwise  transferring  any  equity
     security of BankFinancial that you acquired in connection with your service
     as an  executive  officer or  director.  "Equity  securities"  are  defined
     broadly to include options and other derivatives.  Covered transactions are
     not  limited to those  involving  your  direct  ownership,  but include any
     transaction in which you have a pecuniary interest.

5.   The prohibition covers securities acquired "in connection with service as a
     director  or  executive  officer."  This  includes,   among  other  things,
     securities  acquired under a compensatory plan or contract (such as under a
     stock  option,  or a  restricted  stock  grant),  as a direct  or  indirect
     inducement to employment or joining the Board of Directors, in transactions
     between the individual and the company,  and as director qualifying shares.
     Securities  acquired  outside of an  individual's  service as a director or
     executive  officer (such as shares acquired when the person was an employee
     but not yet an executive  officer) are not  covered.  However,  if you hold



     both covered shares and non-covered  shares,  any shares that you sell will
     be presumed to come first from the covered  shares  unless you can identify
     the source of the sold shares and show that you use the same identification
     for  all  related   purposes   (such  as  tax  reporting   and   disclosure
     requirements).

6.   The  following  are  examples  of  transactions  that you may not engage in
     during the blackout period:

          >>   Exercising  stock options  granted to you in connection with your
               service as a director or executive officer

          >>   Selling  BankFinancial  stock  that you  acquired  by  exercising
               options

          >>   Selling  BankFinancial  stock that you  originally  received as a
               restricted stock grant

7.   There are certain exemptions, including:

          >>   Purchases or sales under 10b5-1(c)  trading plans (so long as you
               do not make or modify your election during the blackout period or
               at a time when you are aware of the actual or  approximate  dates
               of the blackout)

          >>   Bona fide  gifts,  bequests  and  transfers  pursuant to domestic
               relations orders

8.   If you  engage in a  transaction  that  violates  these  rules,  you can be
     required to disgorge your profits from the transaction, and you are subject
     to civil and criminal penalties.

The rules  summarized  above are complex,  and the criminal and civil  penalties
that could be imposed upon  executive  officers and  directors  who violate them
could be severe.

We    therefore    request    that   you   contact    Laura   M.    Dilallo   at
LDilallo@bankfinancial.com,  or by calling (630) 242-7051 before engaging in any
transaction involving  BankFinancial stock or derivatives based on BankFinancial
stock during the blackout period, or if you believe that any such transaction in
which you have a pecuniary interest may occur during the blackout period.