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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
(RULE 13d-102)
INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT
TO RULES 13d-1(b), (c) AND (d) AND AMENDMENTS THERETO FILED
PURSUANT TO 13d-2(b)
(AMENDMENT NO. 12 )(1)
ADVANCED MAGNETICS, INC.
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(Name of Issuer)
COMMON STOCK
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(Title of Class of Securities)
00753P 10 3
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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)
(1) 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).
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CUSIP No. 00753P 103 13G Page 2 of 6 Pages
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(1) Names of Reporting Persons.
I.R.S. Identification Nos. of above persons (entities only).
Marlene Kaplan Goldstein
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(2) Check the Appropriate Box if a Member (a) / /
of a Group* (b) / /
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(3) SEC Use Only
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(4) Citizenship or Place of Organization
No Change
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Number of Shares (5) Sole Voting Power
Beneficially 617,537
Owned by --------------------------------------------------
Each Reporting (6) Shared Voting Power
Person With: 51,900
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(7) Sole Dispositive Power
617,537
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(8) Shared Dispositive Power
51,900
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(9) Aggregate Amount Beneficially Owned by Each Reporting Person
669,437
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(10) Check if the Aggregate Amount in Row (9) Excludes Certain Shares* /X/
See Item 4(a)
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(11) Percent of Class Represented by Amount in Row (9)
9.9%
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(12) Type of Reporting Person*
No Change
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*SEE INSTRUCTIONS BEFORE FILLING OUT!
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ITEM 1.
(a) Name of Issuer
Advanced Magnetics, Inc.
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(b) Address of Issuer's Principal Executive Offices
61 Mooney Street
Cambridge, MA 02138
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ITEM 2.
(a) Name of Person Filing
Marlene Kaplan Goldstein
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(b) Address of Principal Business Office or, if none, Residence
c/o Advanced Magnetics, Inc.
61 Mooney Street
Cambridge, MA 02138
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(c) Citizenship
United States
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(d) Title of Class of Securities
Common Stock, $.01 Par Value Per Share
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(e) CUSIP Number
00753P 10 3
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ITEM 3. IF THIS STATEMENT IS FILED PURSUANT TO RULE 13d-1(b), OR 13d-2(b) OR
(c), CHECK WHETHER THE FILING PERSON IS A:
(a) / / (a) Broker or dealer registered under Section 15 of the
Exchange Act.
(b) / / Bank as defined in Section 3(a)(6) of the Exchange Act.
(c) / / (c) Insurance company as defined in Section 3(a)(19) of the
Exchange Act.
(d) / / Investment company registered under Section 8 of the Investment
Company Act.
(e) / / An investment adviser in accordance with Rule 13d-1(b)(1)(ii)(E);
(f) / / An employee benefit plan or endowment fund in accordance with
Rule 13d-1(b)(1)(ii)(F);
(g) / / A parent holding company or control person in accordance with
Rule 13d-1(b)(1)(ii)(G);
(h) / / A savings association as defined in Section 3(b) of the Federal
Deposit Insurance Act;
Page 3 of 6 pages
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(i) / / A church plan that is excluded from the definition of an investment
company under Section 3(c)(14) of the Investment Company Act;
(j) / / Group, in accordance with Rule 13d-1(b)(1)(ii)(J).
ITEM 4. OWNERSHIP
(a) Amount Beneficially Owned:
669,437. This amount does not include
638,647 shares owned by spouse, as to which
shares beneficial ownership is disclaimed.
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(b) Percent of Class:
9.9% (based on 6,752,027 shares of Common
Stock reported by the Company's transfer
agent as outstanding at the close of
business on December 31, 1999).
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(c) Number of shares as to which such person has:
(i) Sole power to vote or direct the vote 617,537.
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(ii) Shared power to vote or to direct the vote 51,900.
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(iii) Sole power to dispose or to direct the disposition of 617,537.
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(iv) Shared power to dispose or to direct the disposition of 51,900.
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ITEM 5. OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS
Inapplicable.
ITEM 6. OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON:
Inapplicable.
ITEM 7. IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH ACQUIRED
THE SECURITY BEING REPORTED ON BY THE PARENT HOLDING COMPANY
Inapplicable.
ITEM 8. IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP
Inapplicable.
ITEM 9. NOTICE OF DISSOLUTION OF GROUP:
Page 4 of 6 pages
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Inapplicable.
ITEM 10. CERTIFICATION
Inapplicable.
Page 5 of 6 pages
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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.
FEBRUARY 9, 2000
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Date
/S/ MARLENE KAPLAN GOLDSTEIN
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Signature
MARLENE KAPLAN GOLDSTEIN/SECRETARY
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Name/Title
Page 6 of 6 pages
