<PAGE>
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
---------------
SCHEDULE 13G
INFORMATION STATEMENT PURSUANT TO RULES 13D-1 AND 13D-2
(AMENDMENT NO. 8)
LABORATORY CORPORATION OF AMERICA HOLDINGS
- -------------------------------------------------------------------------------
(Name of Issuer)
Common Stock, par value $0.01 per share
- -------------------------------------------------------------------------------
(Title of Class of Securities)
50540R 10 2
- -------------------------------------------------------------------------------
(CUSIP Number)
(CONTINUED ON FOLLOWING PAGE(S))
Page 1 of 7
<PAGE>
13G
CUSIP NO. 50540R 10 2 Page 2 of 7
- -------------------------------------------------------------------------------
1. NAME OF REPORTING PERSONS
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS
NATIONAL HEALTH CARE GROUP, INC.
- -------------------------------------------------------------------------------
2. CHECK THE APPROPRIATE BOX IF MEMBER OF A GROUP (a) [ ]
(b) [ ]
- -------------------------------------------------------------------------------
3. SEC USE ONLY
- -------------------------------------------------------------------------------
4. CITIZENSHIP OR PLACE OF ORGANIZATION
DELAWARE
- -------------------------------------------------------------------------------
5. SOLE VOTING POWER
-0-
--------------------------------------------------------------
6. SHARED VOTING POWER
NUMBER
OF SHARES 11,943,544
BENEFICIALLY --------------------------------------------------------------
OWNED BY 7. SOLE DISPOSITIVE POWER
EACH
REPORTING -0-
PERSON WITH --------------------------------------------------------------
8. SHARED DISPOSITIVE POWER
11,943,544
- -------------------------------------------------------------------------------
9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
11,943,544
- -------------------------------------------------------------------------------
10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
[ ]
- -------------------------------------------------------------------------------
11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
9.7%
- -------------------------------------------------------------------------------
12. TYPE OF REPORTING PERSON
CO
<PAGE>
13G
CUSIP NO. 50540R 10 2 Page 3 of 7
- -------------------------------------------------------------------------------
1. NAME OF REPORTING PERSONS
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS
MAFCO HOLDINGS INC.
- -------------------------------------------------------------------------------
2. CHECK THE APPROPRIATE BOX IF MEMBER OF A GROUP (a) [ ]
(b) [ ]
- -------------------------------------------------------------------------------
3. SEC USE ONLY
- -------------------------------------------------------------------------------
4. CITIZENSHIP OR PLACE OF ORGANIZATION
DELAWARE
- -------------------------------------------------------------------------------
5. SOLE VOTING POWER
-0-
--------------------------------------------------------------
6. SHARED VOTING POWER
NUMBER 11,943,544
OF SHARES --------------------------------------------------------------
BENEFICIALLY 7. SOLE DISPOSITIVE POWER
OWNED BY
EACH -0-
REPORTING --------------------------------------------------------------
PERSON WITH 8. SHARED DISPOSITIVE POWER
11,943,544
- -------------------------------------------------------------------------------
9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
11,943,544
- -------------------------------------------------------------------------------
10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
[ ]
- -------------------------------------------------------------------------------
11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
9.7%
- -------------------------------------------------------------------------------
12. TYPE OF REPORTING PERSON
CO
<PAGE>
13G
CUSIP NO. 50540R 10 2 Page 4 of 7
Item 1(a): Name of Issuer.
LABORATORY CORPORATION OF AMERICA HOLDINGS (the
"Company")
Item 1(b): Address of Issuer's Principal Executive Offices.
358 South Main Street
Burlington, North Carolina 27215
Item 2(a): Name of Persons Filing.
National Health Care Group, Inc. ("National Health") is an
indirect wholly-owned subsidiary of Mafco Holdings Inc.
("Mafco"). All of the capital stock of Mafco is owned by
Ronald O. Perelman.
Item 2(b): Address of Principal Business Office.
The principal business offices of National Health
are located at 5900 North Andrews Avenue, Fort
Lauderdale, Florida 33309. The principal business
offices of Mafco are located at 35 East 62nd Street,
New York, New York 10021.
Item 2(c): Citizenship.
National Health and Mafco each are Delaware
corporations.
Item 2(d): Title of Class of Securities.
Common Stock, par value $.01 per share (the
"Shares").
Item 2(e): CUSIP Number.
50540R 10 2
Item 3: Not Applicable
Item 4: Ownership.
National Health owns 11,943,544 Shares, which represented
approximately 9.7% of the total number of Shares outstanding
on December 31, 1997.
<PAGE>
13G
CUSIP NO. 50540R 10 2 Page 5 of 7
Mafco may be deemed to beneficially own the Shares owned by
National Health. Ronald O. Perelman owns all of the capital
stock of Mafco.
(a) Amount Beneficially Owned:
11,943,544 Shares
(b) Percent of Class:
Approximately 9.7% based upon 123,540,166 Shares
outstanding on December 31, 1997.
(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............... 11,943,544
(iii) Sole power to dispose or
to direct the disposition of.... -0-
(iv) Shared power to dispose or
to direct the disposition of.... 11,943,544
In addition, National Health owns warrants to purchase
3,290,421 Shares at $22.00 (subject to adjustment). Such
warrants are exercisable on April 28, 2000.
Item 5: Owner of Five Percent or Less of a Class.
Not Applicable
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.
Not Applicable
<PAGE>
13G
CUSIP NO. 50540R 10 2 Page 6 of 7
Item 8: Identification and Classification of Members of the Group.
Not Applicable
Item 9: Notice of Dissolution of Group.
Not Applicable
Item 10: Certification.
Not Applicable
<PAGE>
13G
CUSIP NO. 50540R 10 2 Page 7 of 7
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.
Dated: February 10, 1998
NATIONAL HEALTH CARE GROUP, INC.
By: /s/ Glenn P. Dickes
--------------------------------
Name: Glenn P. Dickes
Title: Vice President
MAFCO HOLDINGS INC.
By: /s/ Glenn P. Dickes
--------------------------------
Name: Glenn P. Dickes
Title: Senior Vice President