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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
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OMB APPROVAL
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OMB Number: 3235-0145
Expires: August 31, 1999
Estimated average burden
hours per response........14.90
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SCHEDULE 13G
UNDER THE SECURITIES EXCHANGE ACT OF 1934
(AMENDMENT NO. 3)*
Molecular Devices Corporation
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(Name of Issuer)
Common Stock
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(Title of Class of Securities)
60851C107
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(CUSIP Number)
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(Date of Event Which Requires Filing of This Statement)
Check the appropriate box to designate the rule pursuant to which this Schedule
is filed:
/ / Rule 13d-1(b)
/ / Rule 13d-1(c)
/X/ Rule 13d-1(d)
*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).
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.
Page 1 of 4 pages
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CUSIP NO. 60851C107 13G PAGE 2 OF 4 PAGES
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1 NAME OF REPORTING PERSON
I.R.S. IDENTIFICATION NO(S). OF ABOVE PERSON(S) (ENTITIES ONLY)
HARDEN M. McCONNELL, Ph.D.
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2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
(a)
(b) /X/
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3 SEC USE ONLY
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4 CITIZENSHIP OR PLACE OF ORGANIZATION
UNITED STATES
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NUMBER OF 5 SOLE VOTING POWER
SHARES -0-
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BENEFICIALLY 6 SHARED VOTING POWER
OWNED BY 453,300 (see Item 4)
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EACH 7 SOLE DISPOSITIVE POWER
REPORTING -0-
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PERSON 8 SHARED DISPOSITIVE POWER
WITH: 453,400 (see Item 4)
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9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
453,300
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10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
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11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
4.8%
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12 TYPE OF REPORTING PERSON*
IN
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*SEE INSTRUCTION BEFORE FILLING OUT!
Page 2 of 4 pages
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ITEM 1.
(a) Name of Issuer
MOLECULAR DEVICES CORPORATION
(b) Address of Issuer's Principal Executive Offices
1311 ORLEANS DRIVE, SUNNYVALE, CALIFORNIA
ITEM 2.
(a) Name of Person Filing
HARDEN M. McCONNELL, Ph.D.
(b) Address of Principal Business Office or, if none, Residence
DEPARTMENT OF CHEMISTRY
MUDD BLDG., MAIL CODE 5080
STANFORD UNIVERSITY
STANFORD, CA 94305
(c) Citizenship
UNITED STATES
(d) Title of Class of Securities
COMMON STOCK
CUSIP Number
60851C107
ITEM 3. IF THIS STATEMENT IS FILED PURSUANT TO SECTIONS 240.13d-1(b), OR
240.13d-2(b) OR (c), CHECK WHETHER THE PERSON FILING IS A:
(a) / / Broker or Dealer registered under Section 15 of the Act
(15 U.S.C. 78o);
(b) / / Bank as defined in section 3(a)(6) of the Act (15 U.S.C.
78c);
(c) / / Insurance company as defined in section 3(a)19) of the
Act (15 U.S.C. 78c);
(d) / / An investment company registered under section 8 of the
Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e) / / An investment adviser in accordance with Section
240.13d-1(b)(1)(ii)(E);
(f) / / An employee benefit plan or endowment fund in accordance
with Section 240.13d-1(b)(1)(ii)(F);
(g) / / A parent holding company or control person in accordance
with Section 240.13d-1(b)(ii)(G);
(h) / / A savings association as defined in Section 3(b) of the
Federal Deposit Insurance Act (12 U.S.C. 1813);
(i) / / 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 (15 U.S.C. 80a-3);
(j) / / Group, in accordance with Section 240.13d-1(b)(1)(ii)(J)
ITEM 4. OWNERSHIP
Provide the following information regarding the aggregate number and
percentage of the class of securities of the issuer identified in Item 1.
(a) Amount Beneficially Owned:
453,300 **
(b) Percent of Class:
4.8%
(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:
453,300 **
(iii) Sole power to dispose or to direct the disposition
of:
-0-
(iv) Shared power to dispose or to direct the disposition
of:
453,300 **
** Comprised solely of 453,400 shares held by Harden M. McConnell and Sophia G.
McConnell Trust, of which Dr. McConnell is a co-trustee.
Page 3 of 4 pages
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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
NOT APPLICABLE
ITEM 8. IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP
NOT APPLICABLE
ITEM 9. NOTICE OF DISSOLUTION OF A GROUP
NOT APPLICABLE
ITEM 10. CERTIFICATION
NOT APPLICABLE
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.
2/11/99
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Date
/s/ Harden M. McConnell, Ph.D.
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Signature
HARDEN M. McCONNELL, Ph.D.
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Name/Title
Page 4 of 4 pages
