Kaiser
Aluminum Corporation
|
(Name
of Issuer)
|
Common
stock, par value $.01 per share
|
(Title
of Class of Securities)
|
483007704
|
(CUSIP
Number)
|
December
31, 2007
|
(Date
of Event which Requires Filing of this Statement)
|
1.
|
Names
of Reporting Persons
I.R.S.
Identification Nos. of above Persons (entities only).
Witmer
Asset Management 13-3735486
|
||
2.
|
Check
the Appropriate Box if a Member of a Group (See Instructions)
(a)o
(b)x
|
||
3.
|
SEC
Use Only
|
||
4.
|
Citizenship
or Place of Organization
Delaware
|
||
NUMBER
OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON
WITH
|
5.
|
Sole
Voting Power
0
|
|
6.
|
Shared
Voting Power
217,556
|
||
7.
|
Sole
Dispositive Power
0
|
||
8.
|
Shared
Dispositive Power
217,556
|
||
9.
|
Aggregate
Amount Beneficially Owned by Each Reporting Person
217,556
|
||
10.
|
Check
Box if the Aggregate Amount in Row 9 Excludes Certain Shares (See
Instructions)
o
|
||
11.
|
Percent
of Class Represented by Amount in Row (9)
1.1%
|
||
12.
|
Type
of Reporting Person (See Instructions)
OO
|
1.
|
Names
of Reporting Persons
I.R.S.
Identification Nos. of above Persons (entities only).
Charles
H. Witmer
|
||
2.
|
Check
the Appropriate Box if a Member of a Group (See Instructions)
(a)o
(b)x
|
||
3.
|
SEC
Use Only
|
||
4.
|
Citizenship
or Place of Organization
U.S.A.
|
||
NUMBER
OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON
WITH
|
5.
|
Sole
Voting Power
5,000
|
|
6.
|
Shared
Voting Power
219,556
|
||
7.
|
Sole
Dispositive Power
5,000
|
||
8.
|
Shared
Dispositive Power
219,556
|
||
9.
|
Aggregate
Amount Beneficially Owned by Each Reporting Person
224,556
|
||
10.
|
Check
Box if the Aggregate Amount in Row 9 Excludes Certain Shares (See
Instructions)
o
|
||
11.
|
Percent
of Class Represented by Amount in Row (9)
1.1%
|
||
12.
|
Type
of Reporting Person (See Instructions)
IN
|
1.
|
Names
of Reporting Persons
I.R.S.
Identification Nos. of above Persons (entities only).
Meryl
B. Witmer
|
||
2.
|
Check
the Appropriate Box if a Member of a Group (See Instructions)
(a)o
(b)x
|
||
3.
|
SEC
Use Only
|
||
4.
|
Citizenship
or Place of Organization
U.S.A.
|
||
NUMBER
OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON
WITH
|
5.
|
Sole
Voting Power
0
|
|
6.
|
Shared
Voting Power
219,556
|
||
7.
|
Sole
Dispositive Power
0
|
||
8.
|
Shared
Dispositive Power
219,556
|
||
9.
|
Aggregate
Amount Beneficially Owned by Each Reporting Person
219,556
|
||
10.
|
Check
Box if the Aggregate Amount in Row 9 Excludes Certain Shares (See
Instructions)
|
||
11.
|
Percent
of Class Represented by Amount in Row (9)
1.1%
|
||
12.
|
Type
of Reporting Person (See Instructions)
IN
|
Item 1. | Name of Issuer |
(a)
|
Name
of Issuer:
Kaiser
Aluminum Corporation
|
(b)
|
Address
of Issuer’s Principal Executive Offices:
27422
Portola Parkway, Suite 350
Foothill
Ranch, California 92610-2831
|
Item 2. | Name of Person Filing |
(a)
|
Name:
Witmer
Asset Management
Charles
H. Witmer
Meryl
B. Witmer
|
|
(b)
|
Address
of Principal Business Office:
|
|
One
Dag Hammarskjold Plaza
|
|
885
2nd Avenue, 31st Floor
|
|
New
York, New York 10017
|
|
(c)
|
Citizenship:
|
|
U.S.A.
|
|
(d)
|
Title
of Class of Securities:
|
|
Shares
of Common stock, par value $.01 per share
|
|
(e)
|
CUSIP
Number:
|
|
483007704
|
Item 3. | If this statement is filed pursuant to § 240.13d-1(b) or § 240.13d-2(b) or (c), check whether the person filing is a: |
(a)
|
o Broker
or
dealer registered under Section 15 of the
Act.
|
(b)
|
o Bank
as defined
in section 3(a)(6) of the Act.
|
(c)
|
o Insurance
company as defined in section 3(a)(19) of the
Act.
|
(d)
|
o Investment
company registered under section 8 of the Investment Company Act
of
1940.
|
(e)
|
o An
investment
adviser in accordance with §
240.13(d)-1(b)(1)(ii)(E).
|
(f)
|
o An
employee
benefit plan or endowment fund in accordance with §
240.13d-1(b)(1)(ii)(F).
|
(g)
|
o A
parent
holding company or control person in accordance with §
240.13d-1(b)(ii)(G)
|
(h)
|
o A
savings
association as defined in Section 3(b) of the Federal Deposit Insurance
Act (12 U.S.C. 1813).
|
(i)
|
o A
church plan
that is excluded from the definition of an investment company under
section 3(c)(14) of the Investment Company Act of
1940.
|
(j)
|
o Group,
in
accordance with §
240.13d-1(b)(1)(ii)(J).
|
Item 4. | Ownership. |
(a)
|
Amount
Beneficially Owned:
Witmer
Asset Management 217,556 shares
Charles
H. Witmer 224,556 shares
Meryl
B. Witmer 219,556 shares
|
(b)
|
Percent
of Class:
Witmer
Asset Management 1.1%
Charles
H. Witmer 1.1%
Meryl
B. Witmer 1.1%
|
(c)
|
Number
of shares as to which the person has:
|
(i)
|
sole
power to vote or to direct the vote:
Witmer
Asset Management 0 shares
Charles
H. Witmer 5,000 shares
Meryl
B. Witmer 0 shares
|
(ii)
|
shared
power to vote or to direct the vote:
Witmer
Asset Management 217,556 shares
Charles
H. Witmer 219,556 shares
Meryl
B. Witmer 219,556 shares
|
(iii)
|
sole
power to dispose or to direct the disposition of:
Witmer
Asset Management 0 shares
Charles
H. Witmer 5,000 shares
Meryl
B. Witmer 0 shares
|
|
(iv)
|
shared
power to dispose or to direct the disposition of:
Witmer Asset Management 217,556 shares
Charles H. Witmer 219,556 shares
Meryl B. Witmer 219,556 shares
|
Item
5.
|
Ownership
of Five Percent or Less of a Class
|
Item
6.
|
Ownership
of More than Five Percent on Behalf of Another Person
|
Item
7.
|
Identification
and Classification of the Subsidiary Which Acquired the Security
Being
Reported on By the Parent Holding Company
|
Item
8.
|
Identification
and Classification of Member of the Group
|
Item
9.
|
Notice
of Dissolution of Group
|
Item
10.
|
Certification
|
Dated: February
14, 2008
|
Witmer
Asset Management
|
/s/
Charles H. Witmer *
|
|
Name:
Charles H. Witmer
|
|
Title:
Managing Member
|
|
Dated: February
14, 2008
|
/s/
Charles H. Witmer *
|
Charles
H. Witmer
|
|
Dated: February
14, 2008
|
/s/
Meryl B. Witmer *
|
Meryl
B. Witmer
|
Dated: February
14, 2008
|
Witmer
Asset Management
|
/s/
Charles H. Witmer
|
|
Name:
Charles H. Witmer
|
|
Title:
Managing Member
|
|
Dated: February
14, 2008
|
/s/
Charles H. Witmer
|
Charles
H. Witmer
|
|
Dated: February
14, 2008
|
/s/
Meryl B. Witmer
|
Meryl
B. Witmer
|