FORM 4
[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).         
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES
                                                                                  
OMB APPROVAL
OMB Number: 3235-0287
Expires: November 30, 2011
Estimated average burden
hours per response...
0.5
                      
Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public
Utility Holding Company Act of 1935 or Section 30(f) of the Investment Company Act of 1940
                      

1. Name and Address of Reporting Person *

MIKULSKY PHILLIP M
2. Issuer Name and Ticker or Trading Symbol

INTEGRYS ENERGY GROUP, INC. [ TEG ]
5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

_____ Director                      _____ 10% Owner
__ X __ Officer (give title below)      _____ Other (specify below)
Exec VP-Bus Perf and Shared Sv
(Last)          (First)          (Middle)

700 NORTH ADAMS STREET, P.O. BOX 19001
3. Date of Earliest Transaction (MM/DD/YYYY)

3/14/2012
(Street)

GREEN BAY, WI 54307-9001
(City)        (State)        (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)

 
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 Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock   3/14/2012     M    3775   A $41.58   3851.2724   D    
Common Stock   3/14/2012     S    3775   D $54.15   76.2724   D    
Common Stock   3/14/2012     M    800   A $41.58   876.2724   D    
Common Stock   3/14/2012     S    800   D $54.16   76.2724   D    
Common Stock                  10596.5775   I   By ESOP  
Common Stock                  0   I   by Stk Invest Plan  

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Trans. Date 3A. Deemed Execution Date, if any 4. Trans. Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
6. Date Exercisable and Expiration Date 7. Title and Amount of Securities Underlying Derivative Security
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Employee Stock Option (Right to buy)   $41.58   (1) 3/14/2012     M         3775    2/11/2011   2/11/2020   Common Stock   3775   $ 0   24445   D    
Employee Stock Option (Right to buy)   $41.58   (1) 3/14/2012     M         800    2/11/2011   2/11/2020   Common Stock   800   $ 0   23645   D    
Employee Stock Option (Right to buy)   $42.12   (2)                  2/12/2010   2/12/2019   Common Stock   6459     6459   D    
Employee Stock Option (Right to buy)   $48.36   (3)                  2/14/2009   2/14/2018   Common Stock   30270     30270   D    
Employee Stock Option (Right to buy)   $49.40   (4)                  2/10/2012   2/10/2021   Common Stock   16268     16268   D    
Employee Stock Option (Right to buy)   $52.73   (5)                  12/7/2007   12/7/2016   Common Stock   28761     28761   D    
Employee Stock Option (Right to buy)   $53.24   (6)                  2/9/2013   2/9/2022   Common Stock   18060     18060   D    
Employee Stock Option (Right to buy)   $54.85   (7)                  12/7/2006   12/7/2015   Common Stock   32455     32455   D    
Employee Stock Option (Right to buy)   $58.65   (8)                  5/17/2008   5/17/2017   Common Stock   1015     1015   D    
Performance Rights   $ 0   (9)                  1/1/2013   (9) 6/30/2013   Common Stock   7756     7756   D    
Performance Rights   $ 0   (9)                  1/1/2014   (9) 6/30/2014   Common Stock   5716     5716   D    
Performance Rights   $ 0   (9)                  1/1/2015   (9) 6/30/2015   Common Stock   6091     6091   D    
Phantom Stock Unit     (10)                    (11)   (11) Common Stock   41417.336     41417.336   D    
Restricted Stock Units 2008     (12)                    (13)   (13) Common Stock   0     0   D    
Restricted Stock Units 2009     (12)                    (14)   (14) Common Stock   619.2996     619.2996   D    
Restricted Stock Units 2010     (12)                    (15)   (15) Common Stock   1369.71     1369.71   D    
Restricted Stock Units 2011     (12)                    (16)   (16) Common Stock   1672.1884     1672.1884   D    
Restricted Stock Units 2012     (12)                    (17)   (17) Common Stock   2077     2077   D    

Explanation of Responses:
( 1)  The option vests in four equal annual installments beginning on February 11, 2011.
( 2)  The option vests in four equal annual installments beginning on February 12, 2010.
( 3)  The option vests in four equal annual installments beginning on February 14, 2009.
( 4)  The option vests in four equal annual installments beginning on February 10, 2012.
( 5)  The option vests in four equal annual installments beginning on December 7, 2007.
( 6)  The option vests in four equal annual installments beginning on February 9, 2013.
( 7)  The option vests in four equal annual installments beginning on December 7, 2006.
( 8)  The option vests in four equal annual installments beginning on May 17, 2008.
( 9)  Performance stock rights represent the right to receive shares of common stock of the Company, in the event certain performance goals are satisfied. These goals are based on Company performance against an established industry benchmark, over a three year performance period. The final award of shares issued can be between 0% and 200% of the target award.
( 10)  These phantom stock units convert to common stock on a one-for-one basis.
( 11)  Unless the participant has selected a later commencement date, distribution of stock and equivalents will commence within 60 days following the end of the calendar year in which occurs the participant's retirement or termination of service.
( 12)  Each restricted stock unit represent a contingent right to receive one share of Company common stock.
( 13)  The restricted stock units vest in four equal annual installments beginning on February 14, 2009.
( 14)  The restricted stock units vest in four equal annual installments beginning on February 12, 2010.
( 15)  The restricted stock units vest in four equal annual installments beginning on February 11, 2011.
( 16)  The restricted stock units vest in four equal annual installments beginning on February 10, 2012.
( 17)  The restricted stock units vest in four equal annual installments beginning on February 9, 2013.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
MIKULSKY PHILLIP M
700 NORTH ADAMS STREET
P.O. BOX 19001
GREEN BAY, WI 54307-9001


Exec VP-Bus Perf and Shared Sv

Signatures
By: Dane E. Allen, as Power of Attorney For: Mr. Mikulsky 3/15/2012
** 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 4(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 control number.