<PAGE>
- -------------- ---------------------------
OMB APPROVAL
FORM 4 ---------------------------
OMB NUMBER: 3235-0287
- -------------- EXPIRES: SEPTEMBER 30, 1998
ESTIMATED AVERAGE BURDEN
[ ] CHECK THIS BOX IF NO LONGER HOURS PER RESPONSE .... 0.5
SUBJECT TO SECTION 16. ---------------------------
FORM 4 OR FORM 5
OBLIGATIONS MAY CONTINUE.
SEE INSTRUCTIONS 1(B).
U.S. SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP
Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934,
Section 17(a) of the Public Utility Holding Company Act of 1935 or
Section 30(f) of the Investment Company Act of 1940
- -------------------------------------------------------------------------------
1. Name and Address of Reporting Person*
Colandrea, Joseph Anthony
Colandrea, Marie
- -----------------------------------------------------
(Last) (First) (Middle)
911 S. Ocean Blvd., Apt. 3B
- -----------------------------------------------------
(Street)
Boca Raton, FL 33431
- -----------------------------------------------------
(City) (State) (Zip)
- -------------------------------------------------------------------------------
2. Issuer Name and Ticker or Trading Symbol
American Technical Ceramics Corp. ("AMK" - AMEX)
- -------------------------------------------------------------------------------
3. IRS or Social Security Number of Reporting Person (Voluntary)
- -------------------------------------------------------------------------------
4. Statement for Month/Year
7/97
- -------------------------------------------------------------------------------
5. If Amendment, Date of Original (Month/Year)
- -------------------------------------------------------------------------------
6. Relationship of Reporting Person to Issuer
(Check all applicable)
[ ] Director
[X] 10% Owner
[ ] Officer (give title below)
[ ] Other (specify below)
--------------------------------------------------
--------------------------------------------------
- -------------------------------------------------------------------------------
7. Individual or Joint/Group Filing (Check Applicable Line)
[ ] Form filed by One Reporting Person
[X] Form filed by More than One Reporting Person
- -------------------------------------------------------------------------------
Page 1
<PAGE>
FORM 4 (continued)
<TABLE>
<CAPTION>
TABLE I--Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
- ------------------------------------------------------------------------------------------------------------------------
1. 2. 3. 4. 5. 6. 7.
- --------------------- -------- ---------- ------------------------------ ----------- ---------- ----------
Amount of Owner-
Securities ship
Trans- Trans- Securities Acquired (A) Beneficially Form:
action action or Disposed of (D) Owned at Direct Nature of
Date Code (Instr. 3, 4 and 5) End of (D) or Indirect
Title of (Month/ (Instr. 8) ---------------------------- Month Indirect Beneficial
Security Day/ ---------- Amount (A) or Price (Instr. (I) Ownership
(Instr. 3) Year) Code V (D) 3 and 4) (Instr. 4) (Instr. 4)
- --------------------- -------- ---- ---- ----------- ------ --------- ----------- ---------- ----------
<S> <C> <C> <C> <C> <C> <C> <C> <C> <C>
Common Stock, par $16.40
value $.01 per share 7/16/97 S 25,000 D per share 179,000(1) D(2)
</TABLE>
Reminder: Report on a separate line for each class of securities beneficially
owned directly or indirectly.
(Print or Type Responses)
Page 2
<PAGE>
FORM 4 (continued)
<TABLE>
<CAPTION>
TABLE II--Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g. puts, calls, warrants, options, convertible securities)
- ------------------------------------------------------------------------------------------------------------------------------
1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11.
- ---------- -------- -------- -------- ---------- ------------ -------------- ------ ---------- --------- ----------
Title and Ownership
Number of Date Exer- Amount of Form of
Derivative cisable and Underlying Number of Deriv-
Securities Expiration Securities Price Derivative ative
Conver- Trans- Acquired (A) Date (Month/ (Instr. 3 of Securities Security;
sion or Trans- action or Disposed Day/Year) and 4) Deriv- Benefi- Direct
Exercise action Code of (D) -------------- -------------- ative cially (D) or Nature of
Title of Price of Date (Instr. (Instr. 3, Date Amount Secur- Owned at Indirect Indirect
Derivative Deriv- (Month/ 8) 4 and 5) Exer- Expir- or Num- ity End of (I) Beneficial
Security ative Day/ -------- ---------- cis- ation ber of (Instr. Month (Instr. Ownership
(Instr. 3) Security Year) Code V (A) (D) able Date Title Shares 5) (Instr. 4) 4) (Instr. 4)
- ---------- -------- -------- ---- --- ---- ---- ------- ----- ----- ------ ------ ---------- -------- ----------
<S> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C>
</TABLE>
Explanation of Responses:
(1) Does not include shares previously reported as indirectly owned by
Mr. Colandrea for which Mr. Colandrea has the right to vote pursuant to
certain agreements, since such disclosure is no longer required by virtue
of the 1991 amendments to Section 16 of the Securities Exchange Act. Mr.
and Mrs. Colandrea disclaim beneficial ownership of all such shares. Such
shares, together with Mr. and Mrs. Colandrea's direct ownership, constitute
more than 10% of the outstanding common stock of the issuer.
(2) Joseph A. Colandrea and Marie Colandrea are married and own such securities
as tenants in common.
/s/ Joseph A. Colandrea
/s/ Marie Colandrea 8/7/97
---------------------------------------- --------------------
** Signature of Reporting Person Date
** Intentional misstatements or omissions of facts constitute Federal Criminal
Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed.
If space provided is insufficient, see Instruction 6 for procedure.
Page 3
