U.S. 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(f) of the Investment Company Act of 1940 [_] Check box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b). ________________________________________________________________________________ 1. Name and Address of Reporting Person* Crispin Neal D. -------------------------------------------------------------------------------- (Last) (First) (Middle) 1440 Chapin Avenue -------------------------------------------------------------------------------- (Street) Burlingame, CA 94010 -------------------------------------------------------------------------------- (City) (State) (Zip) ________________________________________________________________________________ 2. Issuer Name and Ticker or Trading Symbol AeroCentury Corp. (ACY) ________________________________________________________________________________ 3. IRS Identification Number of Reporting Person, if an Entity (Voluntary) ________________________________________________________________________________ 4. Statement for Month/Day/Year February 5, 2003 ________________________________________________________________________________ 5. If Amendment, Date of Original (Month/Day/Year) ________________________________________________________________________________ 6. Relationship of Reporting Person to Issuer (Check all applicable) [X] Director [X] 10% Owner [X] Officer (give title below) [_] Other (specify below) President, CEO, Chairman ________________________________________________________________________________ 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. Deemed Transaction (Instr. 3, 4 and 5) Following Direct Nature of 2. Execution Code ------------------------------- Reported (D) or Indirect 1. Transaction Date, if (Instr. 8) (A) Transaction(s) Indirect Beneficial Title of Security Date any ------------ Amount or Price (Instr. 3 (I) Ownership (Instr. 3) (mm/dd/yy) (mm/dd/yy) Code V (D) and 4) (Instr.4) (Instr. 4) ---------------------------------------------------------------------------------------------------------------------------- ---------------------------------------------------------------------------------------------------------------------------- Common Stock 02/05/03 P 100 A $3.21 35,038 D ---------------------------------------------------------------------------------------------------------------------------- Common Stock 184,293.8 I By Corp ---------------------------------------------------------------------------------------------------------------------------- ============================================================================================================================ FORM 4 (continued) Table II -- Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities) ================================================================================ 10. 9. Owner- Number ship of Form 2. Deriv- of Conver- 5. 7. ative Deriv- 11. sion Number of Title and Amount Secur- ative Nature or 3A. Derivative 6. of Underlying 8. ities Secur- of Exer- Deemed 4. Securities Date Securities Price Bene- ity: In- cise 3. Execut- Trans- Acquired (A) Exercisable and (Instr. 3 and 4) of ficially Direct direct Price Trans- ion action or Disposed Expiration Date ---------------- Deriv- Owned (D) or Bene- 1. of action Date if Code of(D) (Month/Day/Year) Amount ative Following In- ficial Title of Deriv- Date any (Instr. (Instr. 3, ---------------- or Secur- Reported direct Owner- Derivative ative (mm/ (mm/ 8) 4 and 5) Date Expira- Number ity Trans- (I) ship Security Secur- dd/ dd/ ------ ----------- Exer- tion of (Instr. action(s) (Instr. (Instr. (Instr. 3) ity yy) yy) Code V (A) (D) cisable Date Title Shares 5) (Instr. 4) 4) 4) ------------------------------------------------------------------------------------------------------------------------- ---------------------------------------------------------------------------------------------------------------------------------- ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ==================================================================================================================================== Explanation of Responses: /s/ Neal D. Crispin February 5, 2003 --------------------------------------------- ----------------------- **Signature of Reporting Person Date 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). ** 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 2