SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL OMB Number: 3235-0104 Estimated average burden hours per response: 0.5

1. Name and Address of Reporting Person* CALABRESE CHRISTA N (Last) (First) (Middle) 15W060 NORTH FRONTAGE ROAD (Street) BURR RIDGE IL 60527 (City) (State) (Zip)	2. Date of Event Requiring Statement (Month/Day/Year) 04/28/2010	3. Issuer Name and Ticker or Trading Symbol BankFinancial CORP [ BFIN ]
		4. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director 10% Owner X Officer (give title below) Other (specify below) Regional President - Affiliate	5. If Amendment, Date of Original Filed (Month/Day/Year)
			6. Individual or Joint/Group Filing (Check Applicable Line) X Form filed by One Reporting Person Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	25,000	D
Common Stock	10,129.5461	I	By 401k(1)
Common Stock	5,793.0886	I	By Employee Stock Ownership Plan(2)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Options (Rights to Buy)	(3)	09/05/2011	Common Stock	85,000	17.62	D
Stock Options (Rights to Buy)	02/26/2008	09/05/2011	Common Stock	46,667	14.82	D
Stock Options (Rights to Buy)	12/15/2008	09/05/2011	Common Stock	4,667	14.82	D

Explanation of Responses:

1. The information in this report is based on the 401k report dated March 31, 2010.

2. Reflects ESOP allocations that occurred as of December 31, 2009.

3. Stock Option Awards granted pursuant to the 2006 Equity Incentive Plan of BankFinancial Corporation vest ratably over five annual installments commencing December 15, 2006

	/s/ F. Morgan Gasior, pursuant to power of attorney	04/30/2010
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.