SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
Under the Securities Exchange Act of 1934
(Amendment No. 1)
Advanced Technology Material
(Name of Issuer)
Common Stock
(Title of Class of Securities)
00754X105
(CUSIP Number)
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 thereto 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") of 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).
(Continued on following pages)
Page 1 of 4 Pages
<PAGE>
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Cusip No. 00754X105 13G Page 2 of 4 Pages
- ---------------------------- -------------------------
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1. NAME OF REPORTING PERSON
S.S OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
Oppenheimer Management Corporation
I.R.S. NO. 13-2527171
- -------------------------------------------------------------------
2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP *
A / /
B / X /
- -------------------------------------------------------------------
3. SEC USE ONLY
- -------------------------------------------------------------------
4. CITIZENSHIP OR PLACE OF ORGANIZATION
Colorado
- -------------------------------------------------------------------
NUMBER OF 5. SOLE VOTING POWER
SHARES 0
BENEFICIALLY -----------------------------------------------
OWNED BY 6. SHARED VOTING POWER
EACH 0
REPORTING -----------------------------------------------
PERSON WITH 7. SOLE DISPOSITIVE POWER
0
-----------------------------------------------
8. SHARED DISPOSITIVE POWER
220,000
- -------------------------------------------------------------------
9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
220,000
- -------------------------------------------------------------------
10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
SHARES *
- -------------------------------------------------------------------
11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
3.13%
- -------------------------------------------------------------------
12. TYPE OF REPORTING PERSON
IA
- -------------------------------------------------------------------
* SEE INSTRUCTIONS BEFORE FILLING OUT!
<PAGE>
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Schedule 13G
Under the Securities Exchange Act of 1934
Check the following box if a fee
is being paid with this statement / /
Item 1(a) Name of Issuer:
Advanced Technology Material
Item 1(b) Address of Issuer's Principal Executive Offices:
7 Commerce Drive
Danbury, CT 06810
Item 2(a) Name of Person Filing:
Oppenheimer Management Corporation
Item 2(b) Address of Principal Business Office:
Two World Trade Center, Suite 3400
New York, New York 10048-0203
Item 2(c) Citizenship:
Inapplicable
Item 2(d) Title of Class of Securities:
Common Stock
Item 2(e) CUSIP Number:
00754X105
Item 3(e) X Investment Adviser registered under Section 203 of
the Investment Advisers Act of 1940
Item 4(a) Amount Beneficially Owned: 220,000 shares
Item 4(b) Percent of Class: 3.13%
Item 4(c)(i) Sole Power to vote or to direct the vote - 0
Item 4(c)(ii) Shared power to vote or to direct the vote - 0
Item 4(c)(iii) Sole power to dispose or to direct the disposition of
- 0
Item 4(c)(iv) Shared power to dispose or to direct the disposition
of - 220,000
Item 5 Ownership to 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 5% of
the class of securities, check the following: X
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:
Inapplicable
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: February 10, 1995
Signature: /s/ Robert G. Zack
________________________________________
Name/Title: Robert G. Zack, Senior Vice President
SEC/adv2.13g
