Securities and Exchange Commission
Washington, D. C. 20549
Schedule 13G
Under the Securities Exchange Act of 1934
(Amendment No. 1)
Cell Genesys, Inc.
Common Stock
CUSIP Number 150921104
Date of Event Which Requires Filing of this Statement: December 31, 2001
CUSIP No. 150921104
1) Name of reporting person:
Legg Mason, Inc.
Tax Identification No.:
52-1200960
2) Check the appropriate box if a member of a group:
a) n/a
b) n/a
3) SEC use only
4) Place of organization:
Maryland
Number of shares beneficially owned by each reporting person with:
5) Sole voting power: - 0 -
6) Shared voting power: 2,769,129
7) Sole dispositive power: - 0 -
8) Shared dispositive power: 2,769,129
9) Aggregate amount beneficially owned by each reporting person:
2,769,129
10) Check if the aggregate amount in row (9) excludes certain shares:
n/a
11) Percent of class represented by amount in row (9):
8.00%
12) Type of reporting person:
HC, CO
___________________________________________________________________
Item 1a) Name of issuer:
Cell Genesys, Inc.
Item 1b) Address of issuer's principal executive offices:
342 Lakeside Drive
Foster City, CA 94404
Item 2a) Name of person filing:
Legg Mason, Inc.
Item 2b) Address of principal business office:
100 Light Street
Baltimore, MD 21202
Item 2c) Citizenship:
Maryland Corporation
Item 2d) Title of class of securities:
Common Stock
Item 2e) CUSIP number: 150921104
Item 3) If this statement is filed pursuant to Rule 13d-1(b),
or 13d-2(b), check whether the person filing is a :
(a) [ ] Broker or dealer under Section 15 of the Act.
(b) [ ] Bank as defined in Section 3(a) (6) of the Act.
(c) [ ] Insurance Company as defined in Section 3(a) (6) of
the Act.
(d) [ ] Investment Company registered under Section 8 of the
Investment Company Act.
(e) [ ] Investment Adviser registered under Section 203 of the
Investment Advisers Act of 1940.
(f) [ ] Employee Benefit Plan, Pension Fund which is
subject to ERISA of 1974 or Endowment Fund;
see 240.13d-1(b)(ii)(F).
(g) [ X ] Parent holding company, in accordance with
240.13d-1(b)(ii)(G).
(h) [ ] Group, in accordance with 240.13d-1(b)(1)(ii)(H).
Item 4) Ownership:
(a) Amount beneficially owned: 2,769,129
(b) Percent of Class: 8.00%
(c) Number of shares as to which such person has:
(i) sole power to vote or to direct the vote:
- 0 -
(ii) shared power to vote or to direct the vote:
2,769,129
(iii) sole power to dispose or to direct the disposition of:
- 0 -
(iv) shared power to dispose or to direct the disposition of:
2,769,129
Item 5) Ownership of Five Percent or less of a class:
n/a
Item 6) Ownership of more than Five Percent on behalf of another
person:
Various accounts managed by the investment advisory
subsidiaries described in Item 7 have the right to
receive or the power to direct the receipt of
dividends from, or the proceeds from the sale of
shares of Cell Genesys, Inc.
Accounts managed by Legg Mason Funds Management,
Inc., in the aggregate, have the right to receive or
the power to direct the receipt of dividends from,
or the proceeds from the sale of, 2,100,000 shares,
or 6.06%, of the total shares outstanding of Cell
Genesys, Inc.
The interest of one account, Legg Mason Special
Investment Trust, Inc., an investment company
registered under the Investment Company Act of
1940 and managed by Legg Mason Funds Management,
Inc., amounted to 2,100,000 shares or 6.06% of the
total shares outstanding.
Item 7) Identification and classification of the subsidiary which
acquired the security being reported on by the
parent holding company:
Legg Mason Funds Management, Inc., investment adviser
Legg Mason Capital Management, Inc., investment adviser
Legg Mason Wood Walker, Inc., investment adviser and
broker/dealer with discretion
Item 8) Identification and classification of members of the group:
n/a
Item 9) Notice of dissolution of group:
n/a
Item 10) Certification:
By signing below I certify that, to the best of my
knowledge and belief, the securities referred to above were acquired
and are held in the ordinary course of business and were not acquired
and are not held for the purpose of or with the effect of changing or
influencing the control of the issuer of the securities and were not
acquired and are not held in connection with or as a participant in
any transaction having that purpose or effect.
Signature
-----------
After reasonable inquiry and to the best of my
knowledge and belief, I certify that the information set forth in this
statement is true, complete and correct.
---------------------------
Date - February 11,2002
Legg Mason, Inc.
By ___________________________________________________
Timothy C. Scheve, Sr. Ex. Vice President
Joint Filing Agreement
---------------------------
Each party signing below agrees that this statement
is submitted as a joint filing on behalf of all of the undersigned.
Legg Mason, Inc.
By ____________________________________________
Timothy C. Scheve, Sr. Ex. Vice President
Legg Mason Funds Management, Inc.
By_____________________________________________
Jennifer Murphy, Sr. Vice President
Legg Mason Special Investment Trust, Inc.
By _____________________________________________
Marc R. Duffy, Vice President