SEC Form 4
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
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 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
1. Name and Address of Reporting Person*
WALKER ROBERT M
(Last) (First) (Middle)
P.O. BOX 547
195 N. FIRST STREET
(Street)
DIXON CA 95620
(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
FIRST NORTHERN COMMUNITY BANCORP [ FNRN ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director 10% Owner
X Officer (give title below) Other (specify below)
EVP/Commercial, Retail & Trust
3. Date of Earliest Transaction (Month/Day/Year)
05/11/2005
4. 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 Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction 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 05/11/2005 M(1) 9,057 A $17.75 18,114 D
Common Stock 05/11/2005 M(1) 1,371 A $17.75 2,742 D
Common Stock 05/11/2005 M(1) 39,951 A $17.75 79,902 I One of three Trustees of FNBank of Dixon Profit Sharing Plan
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction 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 (Month/Day/Year) 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: 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
Common Stock $4.53(2) 05/11/2005 M 682(2) 01/07/2003 01/07/2009 Common Stock 682 $4.53 682 D
Common Stock $4.79(3) 05/11/2005 M 19,854(3) (4) 01/03/2010 Common Stock 19,854 $4.79 20,536 D
Common Stock $6.35(5) 05/11/2005 M 21,406(5) (4) 01/02/2011 Common Stock 21,406 $6.35 41,942 D
Common Stock $10.4(6) 05/11/2005 M 12,624(6) (4) 01/02/2006 Common Stock 12,624 $10.4 54,566 D
Common Stock $9.87(7) 05/11/2005 M 11,910(7) (4) 01/08/2013 Common Stock 11,910 $9.87 66,476 D
Common Stock $11.68(8) 05/11/2005 M 10,102(8) (9) 01/20/2014 Common Stock 10,102 $11.68 76,588 D
Common Stock $13.66(10) 05/11/2005 M 9,540(10) (9) 01/06/2015 Common Stock 9,540 $13.66 86,128 D
Explanation of Responses:
1. On May 11, 2005 the Common Stock of First Northern Community Bancorp Split 2 for 1, resulting in reporting person's shares in each account doubling.
2. This option was previously reported as covering 341 shares at an exercise price of $9.06 due to the May 11, 2005 2 for 1 stock split these amounts were adjusted.
3. This option was previously reported as covering 9,927 shares at an exercise price of $9.59 due to the May 11, 2005 2 for 1 stock split these amounts were adjusted.
4. Stock Options Granted vest 20% upon their grant and 20% annually over 4 years.
5. This option was previously reported as covering 10,703 shares at an exercise price of $12.70 due to the May 11, 2005 2 for 1 stock split these amounts were adjusted.
6. This option was previously reported as covering 6,312 shares at an exercise price of $20.79 due to the May 11, 2005 2 for 1 stock split these amounts were adjusted.
7. This option was previously reported as covering 5,955 shares at an exercise price of $19.74 due to the May 11, 2005 2 for 1 stock split these amounts were adjusted.
8. This option was previously reported as covering 5,056 shares at an exercise price of $23.36 due to the May 11, 2005 2 for 1 stock split these amounts were adjusted.
9. Stock Options Granted vest 0% upon their grant and 25% annually over 4 years.
10. This option was previously reported as covering 4,770 shares at an exercise price of $27.31 due to the May 11, 2005 2 for 1 stock split these amounts were adjusted.
Remarks:
Lynn Campbell, AVP/Corporate Secretary w/POA 05/13/2005
** 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.
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