SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
Under the Securities Exchange Act of 1934
(Amendment No. 3)
CoStar Group, Inc.
(Name of Issuer)
Common Stock (Par Value $.01)
(Title of Class of Securities)
22160N109
(CUSIP Number)
12/31/04
(Date of Event Which Requires Filing of this Statement)
Check the appropriate box to designate the rule pursuant to which this Schedule
is filed:
[X] Rule 13d-1(b)
[ ] Rule 13d-1(c)
[ ] Rule 13d-1(d)
Check the following box if a fee is being paid with this statement [ ]. A fee
is not required only if the filing person: (1) has a previous statement on file
reporting beneficial ownership of more than five percent of the class of
securities described in Item 1; and (2) has filed no amendment subsequent
there to reporting beneficial ownership of five percent or less of such class.
(See Rule 13d-7).
The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities, and
for any subsequent amendment containing information which would alter
the disclosures provided in a prior cover page.
The information required in the remainder of this cover page shall not be
deemed to be "filed" for the purpose of Section 18 of the Securities Exchange
Act of 1934 ("Act") or otherwise subject to the liabilities of that section of
the Act but shall be subject to all other provisions of the Act (however,
see the Notes).
1. NAME OF REPORTING PERSONS. I.R.S. IDENTIFICATION NOS.
OF ABOVE PERSONS (ENTITIES ONLY)
Brown Advisory Holdings Incorporated ("BAHI")
2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a) [ ]
(b) [ ]
3. SEC USE ONLY
4. CITIZENSHIP OR PLACE OF ORGANIZATION
BAHI is a Maryland Corporation.
5 SOLE VOTING POWER 654883 shares
NUMBER OF
SHARES
BENEFICIALLY 6 SHARED VOTING POWER 0 shares
OWNED BY
EACH
REPORTING 7 SOLE DISPOSITIVE POWER 810309 shares
PERSON WITH
8 SHARED DISPOSITIVE POWER 8084 shares
9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
819228 shares
10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
SHARES [ ]
11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
4.5%
12. TYPE OF REPORTING PERSON
BAHI - HC
Item 1(a). Name of Issuer:
Costar Group, Inc.
Item 1(b). Address of Issuer's Principal Executive Offices:
2 Bethesda Metro Center, 10th Floor, Bethesda, MD 20814-5388
Item 2(a). Name of Person Filing:
BAHI
Item 2(b). Address of Principal Business Office:
901 South Bond Street, Suite 400
Baltimore, Maryland 21231
Item 2(c). Citizenship:
BAHI is a Maryland Corporation.
Item 2(d). Title of Class of Securities:
Common Stock (Par Value $.01) of CoStar Group, Inc.
Item 2(e). CUSIP Number: 22160N109
Item 3. If this statement is filed pursuant to Rules 13d-1(b), or 13d-2(b),
check whether the person filing is a:
(g) [x] A parent holding company or control person in accordance with section
240.13d-1(b)(1)(ii)(G)
Item 4. Ownership:
(a) Amount of Beneficially Owned: 819228 shares
(b) Percent of Class: 4.5%
(c) Number of shares as to which such person has:
(i) Sole power to vote or to direct the vote: 654883 shares
(ii) Shared power to vote or to direct the vote: 0 shares
(iii) Sole power to dispose or to direct the disposition of: 810309 shares
(iv) Shared power to dispose or to direct the disposition of: 8084 shares
Item 5. Ownership of Five Percent or Less of a Class.
If this statement is being filed to report the fact that as of the date hereof
the reporting person has ceased to be the beneficial owner of more than
five percent of the class of securities, check the following [X].
Item 6. Ownership of More than Five Percent on Behalf of Another Person.
Not applicable
Item 7. Identification and Classification of the Subsidiary Which Acquired the
Security Being Reported on by the Parent Holding Company or Control Person.
This Schedule is being filed pursuant to Rule 13d-1(b)(1)(ii)(G).
Refer to Exhibit A.
Item 8. Identification and Classification of Members of the Group.
Not applicable
Item 9. Notice of Dissolution of Group.
Not applicable
Item 10. Certification.
By signing below I certify that to the best of my knowledge and belief, the
securities referred to above were acquired in the ordinary course of business
and were not acquired for the purpose of and do not have the effect of
changing or influencing the control of the issuer of such securities and were
not acquired in connection with or as a participant in any transaction having
such 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: As of December 31, 2004
Signature: Brown Advisory Holdings Incorporated
By: /S/ Christopher P. Laia
Title: Secretary
Joint Filing Agreement
----------------------------
Each party signing below agrees that this statement is submitted as a joint
filing on behalf of the undersigned.
Date: As of December 31, 2004
Signature: Brown Investment Advisory and Trust Company
By: /S/ Patrick Ventura
Title: Principal
Date: As of December 31, 2004
Signature: Brown Investment Advisory Incorporated
By: /S/ Patrick Ventura
Title: Principal
Exhibit A
Pursuant to the instructions in Item 7 of this Schedule 13G, the identity and
the Item 3 classification of the relevant subsidiaries are: BIATC, a Bank as
defined in Section 3(a)(6) of the Act; and Brown Investment Advisory
Incorporated, an Investment Advisor registered under section 203 of the
Investment Advisers Act of 1940 and a wholly-owned subsidiary of BIATC.