____________________________ OMB APPROVAL FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION ____________________________ WASHINGTON, D.C. 20549 OMB Number: 3235-0287 [ ] CHECK THIS BOX IF NO Expires: January 31, 2005 LONGER SUBJECT TO STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Estimated average burden SECTION 16. FORM 4 hours per response.......0.5 OR FORM 5 OBLIGATIONS ____________________________ MAY CONTINUE. SEE INSTRUCTION 1(b). 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 (Print or Type Responses) ____________________________________________________________________________________________________________________________________ 1. Name and Address of 2. Issuer Name AND Ticker 6. Relationship of Reporting Person(s) to Reporting Person* or Trading Symbol Issuer (Check all applicable) Walker Robert M. UnionBanCal Corporation "UB" X _________________________________________________________________________________ ____Director ____10% Owner (Last) (First) (Middle) 3. I.R.S. Identification 4. Statement for X (specify Number of Reporting Month/Day/Year ____Officer (give ____Other title c/o UnionBanCal Corporation Person, if an entity title below) below) 400 California Street (voluntary) January 21, 2003 Vice Chairman ______________________________ _______________________________________________________________________ (Street) 5. If Amendment, 7. Individual or Joint/Group Filing San Francisco California 94104 Date of Original (Check Applicable Line) ______________________________ (Month/Day/Year) X (City) (State) (Zip) ___Form filed by One Reporting Person ___Form filed by More than One Reporting Person ____________________________________________________________________________________________________________________________________ TABLE I - NON-DERIVATIVE SECURITIES ACQUIRED, DISPOSED OF, OR BENEFICIARY OWNED ____________________________________________________________________________________________________________________________________ 1. Title of 2. Trans- 2A. Deemed 3. Transaction 4. Securities 5. Amount of 6. Ownership 7. Nature of Security action Execution Code Acquired (A) Securities Form: Indirect (Instr. 3) Date Date, if (Instr. 8) or Disposed Beneficially Direct(D) Beneficial (Month/ any (Month/ of (D) Owned Following or Ownership Day/ Day/Year) (Instr. 3, 4 Reported Indirect Year) and 5) Transaction(s) (I) (Instr. 4) ____________________________________ (Instr. 3 (Instr. 4) Code V Amount (A) or Price and 4) (D) ____________________________________________________________________________________________________________________________________ Common Stock 1/21/03 M 30,000 A $11.25 ____________________________________________________________________________________________________________________________________ Common Stock 1/21/03 S 30,000 D $42.0004 0 ____________________________________________________________________________________________________________________________________ Common Stock 51,900 I by trust(1) ____________________________________________________________________________________________________________________________________ Common Stock 164.7166 I by 401(k)(2) ____________________________________________________________________________________________________________________________________ ____________________________________________________________________________________________________________________________________ ____________________________________________________________________________________________________________________________________ Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. (Over) *If the form is filed by more than one reporting person, SEE Instruction 4(b)(v). SEC 1474 (9-02) POTENTIAL PERSONS WHO ARE TO 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

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

OMB APPROVAL

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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(h) of the Investment Company Act of 1940

OMB Number: 3235-0287
Expires: January 31, 2005
Estimated average burden
hours per response. . .0.5

Filed By
Romeo and Dye's
Section 16 Filer
www.section16.net

FORM 4 (CONTINUED) TABLE II - DERIVATIVE SECURITIES ACQUIRED, DISPOSED OF, OR BENEFICIALLY OWNED (E.G., PUTS, CALLS, WARRANTS, OPTIONS, CONVERTIBLE SECURITIES) ____________________________________________________________________________________________________________________________________ 1. Title of Derivative 2. Conver- 3. Trans- 3A. Deemed 4. Trans- 5. Number of 6. Date Exer- 7. Title and Security sion or action Execution action Derivative cisable and Amount of (Instr. 3) Exercise Date Date, if Code Securities Expiration Underlying Price of (Month/ any (Instr. Acquired (A) Date Securities Deri- Day/ (Month/ 8) or Disposed (Month/Day/ (Instr. 3 vative Year) Day/Year) of (D) Year) and 4) Security (Instr. 3,4 and 5) __________________________________________________________________ Code V (A) (D) Date Expi- Title Amount Exer- ration or cisable Date Number of Shares ____________________________________________________________________________________________________________________________________ Nonqualified Stock Options $11.25 1/21/03 M 30,000 (3) 4/1/2005 Common 30,000 ____________________________________________________________________________________________________________________________________ ____________________________________________________________________________________________________________________________________ Balance of all non- qualified stock options granted ____________________________________________________________________________________________________________________________________ ____________________________________________________________________________________________________________________________________ ____________________________________________________________________________________________________________________________________ 8. Price 9. Number 10. Owner- 11. Nature of of deriv- ship of Deriv- ative Form of Indirect ative Securities Deriv- Benefi- Security Bene- ative cial (Instr. ficially Security: Owner- 5) Owned Direct ship Following (D) or (Instr.4) Reported Indirect Transaction(s) (I) (Instr. 4) (Instr. 4) ______________________________________________________________ -0- ______________________________________________________________ ______________________________________________________________ 263,500 D ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ EXPLANATION OF RESPONSES: (1) Robert & Judith Walker Trust. (2) Shares held in the Union Bank of California 401(k) Plan as of 12/31/02 (3) The option vested in three equal annual installments on 4/1/96, 4/1/97, 4/1/98. ** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. SEE 18 U.S.C. 1001 and 15 U.S.C. 78ff(a). /s/ROBERT M. WALKER 1/22/03 ________________________________________________________ **Signature of Reporting Person Date Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, SEE Instruction 6 for procedure. Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number. Page 2

1. Name and Address of Reporting Person* Walker, Robert M.	2. Issuer Name and Ticker or Trading Symbol First Northern Community Bancorp -- FNRN		6. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director 10% Owner X Officer (give title below) Other (specify below) SVP/Branch Administrator
(Last) (First) (Middle) 195 N. First Street P.O. Box 547	3. I.R.S. Identification Number of Reporting Person, if an entity (voluntary) ###-##-####	4. Statement for Month/Day/Year 02/06/03
(Street) Dixon, CA 95620		5. If Amendment, Date of Original (Month/Day/Year)	7. Individual or Joint/Group Filing (Check Applicable Line) X Form filed by One Reporting Person Form filed by More than One Reporting Person
(City) (State) (Zip)	Table I — Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1. Title of Security (Instr. 3)	2. Trans- action Date (Month/ Day/ Year)	2A. Deemed Execution Date, if any (Month/Day/ Year)	3. Trans- action Code (Instr. 8)		4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 & 5)			5. Amount of Securities Beneficially Owned Follow- ing Reported Transactions(s) (Instr. 3 & 4)	6. Owner- ship Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Trans- action Date (Month/ Day/ Year)	2A. Deemed Execution Date, if any (Month/Day/ Year)	Code	V	Amount	(A) or (D)	Price		6. Owner- ship Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Capital	02/06/03	02/06/03	M		5,001	A	$11.35	2,654	D
Common Capital	02/06/03		S		5,001	D	$23.50	2,654	D

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).

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

FORM 4 (continued)

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. Conver-
sion or
Exercise
Price of Derivative Security

3. Trans-
action Date

(Month/
Day/
Year)

3A. Deemed
Execution
Date,
if any
(Month/
Day/
Year)

4. Trans-
action
Code

(Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D)

(Instr. 3, 4 & 5)

6. Date Exercisable
and Expiration
Date
(Month/Day/
Year)

7. Title and Amount of Underlying Securities
(Instr. 3 & 4)

8. Price of Derivative Security
(Instr. 5)

9. Number of
Derivative
Securities
Beneficially
Owned
Following
Reported Transaction(s)
(Instr. 4)

10. Owner-
ship Form
of Deriv-
ative
Security:
Direct (D)
or Indirect (I)
(Instr. 4)

11. Nature of Indirect Beneficial Ownership
(Instr. 4)

Code

(A)

(D)

Date Exer-cisable

Expira-
tion
Date

Title

Amount or Number of
Shares

Common Capital (Stock Option w/right to purchase

$11.35

02/06/03

5,001

3/6/99⁽¹⁾

3/6/08

ISO

5,001

Explanation of Responses:

(1) Stock options vest 20% upon their grant and 20% annually over 4 years. The exercise price of Stock Options is the fair market value on date of grant.

By: /s/ Lynn Campbell
AVP/Corporate Secretary w/POA
**Signature of Reporting Person

02/06i/03
Date

**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.

Filing Compare · WALKER ROBERT M