UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 4 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(h) of the Investment Company Act of 1940 |_| Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b). (Print or Type Responses) ________________________________________________________________________________ 1. Name and Address of Reporting Person* Dreher Frederick W. -------------------------------------------------------------------------------- (Last) (First) (Middle) 4200 One Liberty Place -------------------------------------------------------------------------------- (Street) Philadelphia, PA 19103 -------------------------------------------------------------------------------- (City) (State) (Zip) ________________________________________________________________________________ 2. Issuer Name and Ticker or Trading Symbol Penn Engineering & Manufacturing Corp. (PNN and PNN.A) ________________________________________________________________________________ 3. I.R.S. Identification Number of Reporting Person, if an entity (voluntary) ________________________________________________________________________________ 4. Statement for Month/Day/Year 3/21/03 ________________________________________________________________________________ 5. If Amendment, Date of Original (Month/Day/Year) ________________________________________________________________________________ 6. Relationship of Reporting Person(s) 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) |X| Form Filed by One Reporting Person |_| Form Filed by More than One Reporting Person ________________________________________________________________________________ ================================================================================ Table I -- Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned ================================================================================ 5. Amount of 6. 4. Securities Owner- Securities Acquired (A) or Beneficially ship 2A. 3. Disposed of (D) Owned Form: 7. 2. Deemed Transaction (Instr. 3, 4 and 5) Following Direct Nature of Trans- Execution Code ------------------------------- Reported (D) or Indirect 1. action Date, if (Instr. 8) (A) Transaction(s) Indirect Beneficial Title of Security Date any ------------ or (Instr. 3 & (I) Ownership (Instr. 3) (mm/dd/yy) (mm/dd/yy) Code V Amount (D) Price Instr.4) (Instr.4) (Instr.4) ------------------------------------------------------------------------------------------------------------------------------------ Class A Common Stock, $.01 par value 3/21/03 3/21/03 P 400 A $10.99 D ------------------------------------------------------------------------------------------------------------------------------------ Class A Common Stock, $.01 par value 3/21/03 3/21/03 P 4,600 A $11.10 5,000(1) D ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ==================================================================================================================================== Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. * If the form is filed by more than one reporting person, see Instruction 4(b)(v). Persons who 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 FORM 4 (continued) Table II -- Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities) ================================================================================ 9. Number 10. of Owner- deriv- ship ative Form 2. Secur- of Conver- 5. 7. ities Deriv- 11. sion Number of Title and Amount Bene- ative Nature or Derivative 6. of Underlying 8. ficially Secur- of Exer- 3A. 4. Securities Date Securities Price Owned ity: In- cise Deemed Trans- Acquired (A) Exercisable and (Instr. 3 and 4) of Follow- Direct direct Price 3. Execut- action or Disposed Expiration Date ---------------- Deriv- ing (D) or Bene- 1. of Trans- ion Code of(D) (Month/Day/Year) Amount ative Reported In- ficial Title of Deriv- action Date if (Instr. (Instr. 3, ---------------- or Secur- Trans- direct Owner- Derivative ative Date any 8) 4 and 5) Date Expira- Number ity action(s) (I) ship Security Secur- (mm/dd/ (mm/dd/ ------ ------------ Exer- tion of (Instr. (Instr. (Instr. (Instr. (Instr. 3) ity yy) yy) Code V (A) (D) cisable Date Title Shares 5) 4) 4) 4) ------------------------------------------------------------------------------------------------------------------------------------ None ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ==================================================================================================================================== Explanation of Responses: (1) Reporting person is the beneficial owner of more than 10% of the Company's Common Stock and Class A Common Stock as a result of his appointment as co-trustee of several trusts. The reporting person does not have a pecuniary interest in any of the shares held by these trusts and disclaims beneficial ownership of such shares, except in his capacity as co-trustee of these trusts. /s/ Frederick W. Dreher 3/21/03 --------------------------------------------- ----------------------- **Signature of Reporting Person Date Frederick W. Dreher ** 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 is insufficient, see Instruction 6 for procedure. Persons who 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 2