UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 4 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP ( ) Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instructions 1(b). 1. Name and Address of Reporting Person Richard A. Manoogian Masco Corporation 21001 Van Born Street MI, Taylor 48180 2. Issuer Name and Ticker or Trading Symbol BANK ONE CORPORATION (ONE) 3. IRS or Social Security Number of Reporting Person (Voluntary) 4. Statement for Month/Day/Year 4/15/2003 5. If Amendment, Date of Original (Month/Day/Year) 6. Relationship of Reporting Person(s) to Issuer (Check all applicable) (X) Director ( ) 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 | ___________________________________________________________________________________________________________________________________| 1. Title of Security|2. |2A. |3. |4.Securities Acquired (A) |5.Amount of |6.Dir |7.Nature of Indirect | |Trans-|Exec- |Trans | or Disposed of (D) | Securities |ect | Beneficial Ownership | |action|ution |action| | Beneficially |(D)or | | | | | | | | A/| | Owned Following |Indir | | |Date | Date |Code|V| Amount | D | Price | Reported Trans(s)|ect(I)| | ___________________________________________________________________________________________________________________________________| Common Stock | | | | | | | |121245 |D | | -----------------------------------------------------------------------------------------------------------------------------------| Common Stock | | | | | | | |50000 |I |Foundation | -----------------------------------------------------------------------------------------------------------------------------------| ___________________________________________________________________________________________________________________________________| ___________________________________________________________________________________________________________________________________| Table II -- Derivative Securitites Acquired, Disposed of, or Beneficially Owned | ___________________________________________________________________________________________________________________________________| 1.Title of |2.Con- |3. |3A. |4. |5.Number of De |6.Date Exer|7.Title and Amount |8.Price|9.Number |10.|11.Nature of| Derivative |version |Trans- |Deemed|Trans-| rivative Secu |cisable and| of Underlying |of Deri|of Deriva |Dir|Indirect | Security |or Exer |action | |action| rities Acqui |Expiration | Securities |vative |tive |ect|Beneficial | |cise | |Execu-| | red(A) or Dis |Date(Month/| |Secu |Securities |(D)|Ownership | |Price of| |ution | | posed of(D) |Day/Year) | |rity |Benefi |or | | |Deriva- | | | | |Date |Expir| | |ficially |Ind| | |tive | | | | | A/|Exer-|ation| Title and Number | |Owned Follow|ire| | |Secu- |(Month/|(Month| | | | D |cisa-|Date | of Shares | |ing Reported|ct | | |rity |Day/ |/Day/ |Code|V| Amount | |ble | | | |Trans- |(I)| | | |Year) |Year) | | | | | | | | |action(s) | | | ___________________________________________________________________________________________________________________________________| Director Stoc|$36.85 |4/15/ 2| |A | |2000 |A |10/15|4/15/|Common Stock|2000 | |2000 |D | | k Option (Rig| |003 | | | | | |/2003|09 | | | | | | | ht to Buy) | | | | | | | | | | | | | | | | -----------------------------------------------------------------------------------------------------------------------------------| Director Stoc|$36.75 | | | | | | | |05/15|Common Stock| | |5000 |D | | k Option (rig| | | | | | | | |/11 | | | | | | | ht to buy) | | | | | | | | | | | | | | | | -----------------------------------------------------------------------------------------------------------------------------------| Director Stoc|$41.21 | | | | | | | |04/16|Common Stock| | |2000 |D | | k Option (rig| | | | | | | | |/2012| | | | | | | ht to buy) | | | | | | | | | | | | | | | | -----------------------------------------------------------------------------------------------------------------------------------| | | | | | | | | | | | | | | | | ___________________________________________________________________________________________________________________________________| Explanation of Responses: SIGNATURE OF REPORTING PERSON Richard A. Manoogian RICHARD A. MANOOGIAN By: Laurence Goldman, Attorney-in-Fact