1 ------ FORM 4 ------ U.S. SECURITIES AND EXCHANGE COMMISSION [ ] Check box if no longer WASHINGTON, DC 20549 subject to Section 16. Form 4 or Form 5 obligations may STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP continue. See Instruction 1(b). 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(1)|2. Issuer Name and Ticker or Trading Symbol |6. Relationship of Reporting Person | | to Issuer (Check all applicable) Illig, Clifford W | Cerner Corporation (CERN) | X Director X 10% Owner -------------------------------------------------------------------------------------------| ----- ----- (Last) (First) (Middle) |3. IRS Identification | 4. Statement for | X Officer (give title below) | Number of | Month/Year | ----- | Reporting Person, | | Other (specify below) | if an Entity | | ----- 2800 Rockcreek Parkway | (Voluntary) | April 2001 | Vice Chairman -----------------------------------------| |-------------------------|---------------------------------------- (Street) | | 5. If Amendment, |7. Individual or Joint/Group Filing | | Date of Original | (Check applicable line) | | (Month/Year) | X Form Filed by One Reporting Person Kansas City, MO 64117-2551 | | | -- -----------------------------------------|-------------------------------------------------| Form Filed by More than One (City) (State) (Zip) | | -- Reporting Person | | ------------------------------------------------------------------------------------------------------------------------------------ TABLE I - NON-DERIVATIVE SECURITIES ACQUIRED, DISPOSED OF, OR BENEFICIALLY OWNED ----------------------------------------------------------------------------------------------------------------------------------- 1. Title of Security |2. Transaction| 3. Transaction|4. Securities Acquired (A)| 5. Amount of|6. Owner- |7. Nature (Instr. 3) | Date | Code | or Disposed of (D) | Securities | ship | of | | (Instr. 8) | (Instr. 3, 4 and 5) | Beneficially| Form: | Indirect | | | | Owned at End| Direct | Bene- | |---------------|--------------------------| of Month | (D) or | ficial | | | | | (A) | | (Instr. 3 | Indirect | Owner- | (Month/Day/ | | | | or | | and 4) | (I) | ship | Year) | Code | V | Amount | (D) | Price | |(Instr. 4)|(Instr. 4) --------------------------------------|--------------|-------|-------|--------|------|----------|-------------|--------- |--------- Common Stock | 04/24/01 | S | | 100 | D |$43.285000| | D | --------------------------------------|--------------|-------|-------|--------|------|----------|-------------|--------- |--------- Common Stock | 04/24/01 | S | | 100 | D |$43.325000| | D | --------------------------------------|--------------|-------|-------|--------|------|----------|-------------|--------- |--------- Common Stock | 04/24/01 | S | | 100 | D |$43.015000| | D | --------------------------------------|--------------|-------|-------|--------|------|----------|-------------|--------- |--------- Common Stock | 04/24/01 | S | | 200 | D |$43.065000| | D | --------------------------------------|--------------|-------|-------|--------|------|----------|-------------|--------- |--------- Common Stock | 04/24/01 | S | | 300 | D |$43.375000| | D | --------------------------------------|--------------|-------|-------|--------|------|----------|-------------|--------- |--------- Common Stock | 04/24/01 | S | | 700 | D |$43.275000| | D | --------------------------------------|--------------|-------|-------|--------|------|----------|-------------|--------- |--------- Common Stock | 04/24/01 | S | | 1,300 | D |$43.255000| | D | --------------------------------------|--------------|-------|-------|--------|------|----------|-------------|--------- |--------- Common Stock | 04/24/01 | S | | 2,300 | D |$43.635000| | D | --------------------------------------|--------------|-------|-------|--------|------|----------|-------------|--------- |--------- Common Stock | 04/24/01 | S | | 2,500 | D |$43.395000| | D | ---------------------------------------------------------------------------------------------------------------------------------- Common Stock | 04/24/01 | S | | 4,700 | D |$43.005000| | D | ---------------------------------------------------------------------------------------------------------------------------------- 2 ------ FORM 4 ------ U.S. SECURITIES AND EXCHANGE COMMISSION [ ] Check box if no longer WASHINGTON, DC 20549 subject to Section 16. Form 4 or Form 5 obligations may STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP continue. See Instruction 1(b). 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(1)|2. Issuer Name and Ticker or Trading Symbol |6. Relationship of Reporting Person | | to Issuer (Check all applicable) Illig, Clifford W | Cerner Corporation (CERN) | Director 10% Owner -------------------------------------------------------------------------------------------| ----- ----- (Last) (First) (Middle) |3. IRS Identification | 4. Statement for | Officer (give title below) | Number of | Month/Year | ----- | Reporting Person, | | Other (specify below) | if an Entity | | ----- 2800 Rockcreek Parkway | (Voluntary) | April 2001 | -----------------------------------------| |-------------------------|---------------------------------------- (Street) | | 5. If Amendment, |7. Individual or Joint/Group Filing | | Date of Original | (Check applicable line) | | (Month/Year) | Form Filed by One Reporting Person Kansas City, MO 64117-2551 | | | -- -----------------------------------------|-------------------------------------------------| Form Filed by More than One (City) (State) (Zip) | | -- Reporting Person | | ------------------------------------------------------------------------------------------------------------------------------------ TABLE I - NON-DERIVATIVE SECURITIES ACQUIRED, DISPOSED OF, OR BENEFICIALLY OWNED ----------------------------------------------------------------------------------------------------------------------------------- 1. Title of Security |2. Transaction| 3. Transaction|4. Securities Acquired (A)| 5. Amount of|6. Owner- |7. Nature (Instr. 3) | Date | Code | or Disposed of (D) | Securities | ship | of | | (Instr. 8) | (Instr. 3, 4 and 5) | Beneficially| Form: | Indirect | | | | Owned at End| Direct | Bene- | |---------------|--------------------------| of Month | (D) or | ficial | | | | | (A) | | (Instr. 3 | Indirect | Owner- | (Month/Day/ | | | | or | | and 4) | (I) | ship | Year) | Code | V | Amount | (D) | Price | |(Instr. 4)|(Instr. 4) --------------------------------------|--------------|-------|-------|--------|------|----------|-------------|--------- |--------- Common Stock | 04/25/01 | S | | 100 | D |$44.285000| | | --------------------------------------|--------------|-------|-------|--------|------|----------|-------------|--------- |--------- Common Stock | 04/25/01 | S | | 100 | D |$44.505000| | | --------------------------------------|--------------|-------|-------|--------|------|----------|-------------|--------- |--------- Common Stock | 04/25/01 | S | | 200 | D |$44.305000| | | --------------------------------------|--------------|-------|-------|--------|------|----------|-------------|--------- |--------- Common Stock | 04/25/01 | S | | 300 | D |$44.325000| | | --------------------------------------|--------------|-------|-------|--------|------|----------|-------------|--------- |--------- Common Stock | 04/25/01 | S | | 1,000 | D |$43.505000| | | --------------------------------------|--------------|-------|-------|--------|------|----------|-------------|--------- |--------- Common Stock | 04/25/01 | S | | 1,500 | D |$44.435000| | | --------------------------------------|--------------|-------|-------|--------|------|----------|-------------|--------- |--------- Common Stock | 04/25/01 | S | | 1,700 | D |$43.500000| | | --------------------------------------|--------------|-------|-------|--------|------|----------|-------------|--------- |--------- Common Stock | 04/25/01 | S | | 2,400 | D |$44.000000| | | --------------------------------------|--------------|-------|-------|--------|------|----------|-------------|--------- |--------- Common Stock | 04/25/01 | S | | 2,600 | D |$44.005000| | | ---------------------------------------------------------------------------------------------------------------------------------- Common Stock | 04/25/01 | S | | 2,800 | D |$44.255000| | | ---------------------------------------------------------------------------------------------------------------------------------- 3 ------ FORM 4 ------ U.S. SECURITIES AND EXCHANGE COMMISSION [ ] Check box if no longer WASHINGTON, DC 20549 subject to Section 16. Form 4 or Form 5 obligations may STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP continue. See Instruction 1(b). 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(1)|2. Issuer Name and Ticker or Trading Symbol |6. Relationship of Reporting Person | | to Issuer (Check all applicable) Illig, Clifford W | Cerner Corporation (CERN) | Director 10% Owner -------------------------------------------------------------------------------------------| ----- ----- (Last) (First) (Middle) |3. IRS Identification | 4. Statement for | Officer (give title below) | Number of | Month/Year | ----- | Reporting Person, | | Other (specify below) | if an Entity | April 2001 | ----- 2800 Rockcreek Parkway | (Voluntary) | | -----------------------------------------| |-------------------------|---------------------------------------- (Street) | | 5. If Amendment, |7. Individual or Joint/Group Filing | | Date of Original | (Check applicable line) | | (Month/Year) | Form Filed by One Reporting Person Kansas City, MO 64117-2551 | | | -- -----------------------------------------|-------------------------------------------------| Form Filed by More than One (City) (State) (Zip) | | -- Reporting Person | | ------------------------------------------------------------------------------------------------------------------------------------ TABLE I - NON-DERIVATIVE SECURITIES ACQUIRED, DISPOSED OF, OR BENEFICIALLY OWNED ----------------------------------------------------------------------------------------------------------------------------------- 1. Title of Security |2. Transaction| 3. Transaction|4. Securities Acquired (A)| 5. Amount of|6. Owner- |7. Nature (Instr. 3) | Date | Code | or Disposed of (D) | Securities | ship | of | | (Instr. 8) | (Instr. 3, 4 and 5) | Beneficially| Form: | Indirect | | | | Owned at End| Direct | Bene- | |---------------|--------------------------| of Month | (D) or | ficial | | | | | (A) | | (Instr. 3 | Indirect | Owner- | (Month/Day/ | | | | or | | and 4) | (I) | ship | Year) | Code | V | Amount | (D) | Price | |(Instr. 4)|(Instr. 4) --------------------------------------|--------------|-------|-------|--------|------|----------|-------------|--------- |--------- Common Stock | 04/25/01 | S | | 5,000 | D |$43.625000| | D | --------------------------------------|--------------|-------|-------|--------|------|----------|-------------|--------- |--------- Common Stock | 04/26/01 | S | | 100 | D |$45.525000| | D | --------------------------------------|--------------|-------|-------|--------|------|----------|-------------|--------- |--------- Common Stock | 04/26/01 | S | | 1,300 | D |$45.500000| | D | --------------------------------------|--------------|-------|-------|--------|------|----------|-------------|--------- |--------- Common Stock | 04/26/01 | S | | 3,600 | D |$45.505000| | D | --------------------------------------|--------------|-------|-------|--------|------|----------|-------------|--------- |--------- Common Stock | 04/26/01 | S | | 5,000 | D |$45.005000| | D | --------------------------------------|--------------|-------|-------|--------|------|----------|-------------|--------- |--------- Common Stock | 04/30/01 | S | | 100 | D |$46.000000| | D | --------------------------------------|--------------|-------|-------|--------|------|----------|-------------|--------- |--------- Common Stock | 04/30/01 | S | | 4,900 | D |$46.002000| 2,938,221 | D | --------------------------------------|--------------|-------|-------|--------|------|----------|-------------|--------- |--------- Common Stock | | | | | | | 195,667 | I |by Spouse --------------------------------------|--------------|-------|-------|--------|------|----------|-------------|--------- |--------- Common Stock | | | | | | | 5,548 | I |by Trust ---------------------------------------------------------------------------------------------------------------------------------- 4 FORM 4 (CONTINUED) TABLE II -- DERIVATIVE SECURITIES ACQUIRED, DISPOSED OF, OR BENEFICIALLY OWNED (E.G., PUTS, CALLS, WARRANTS, OPTIONS, CONVERTIBLE SECURITIES) ------------------------------------------------------------------------------------------------------------------------------------ 1. Title of Derivative | 2. Conver- |3. Trans- |4. Trans- |5. Number of |6. Date Exer- |7. Title and Amount |8. Price Security | sion or | action | action | Derivative | cisable and | of Underlying | of (Instr. 3) | Exercise | Date | Code | Securities Ac- | Expiration | Securities | Deriv- | Price of | (Month/ | (Instr. 8)| quired (A) or | Date | (Instr. 3 and 4) | ative | Deriv- | Day/ | | Disposed of (D)| (Month/Day/ | | Secur- | ative | Year) | | (Instr. 3, 4, | Year) | | ity | Security | | | and 5) | | | (Instr. 5) | | | | |-------------------------------------| | | | | |Date |Expira- | | Amount or | | | |-------------------------------|Exer- |tion | Title | Number of | | | | Code |V | (A) |(D) |cisable|Date | | Shares | ------------------------|-------------|----------|-------|----|--------|---------|-------|--------|--------|-----------|------------ | | | | | | | | | | | | | | | | | | | | | | ------------------------|-------------|----------|-------|----|--------|---------|-------|--------|--------|-----------|------------ | | | | | | | | | | | ------------------------|-------------|----------|-------|----|--------|---------|-------|--------|--------|-----------|------------ | | | | | | | | | | | ------------------------|-------------|----------|-------|----|--------|---------|-------|--------|--------|-----------|------------ | | | | | | | | | | | ------------------------|-------------|----------|-------|----|--------|---------|-------|--------|--------|-----------|------------ | | | | | | | | | | | ------------------------|-------------|----------|-------|----|--------|---------|-------|--------|--------|-----------|------------ | | | | | | | | | | | ------------------------|-------------|----------|-------|----|--------|---------|-------|--------|--------|-----------|------------ | | | | | | | | | | | ------------------------------------------------------------------------------------------------------------------------------------ -------------------------------------------------------------------------- 9. Number of | 10. Ownership | 11. Nature of Derivative | Form of | Indirect Securities | Derivative | Beneficial Beneficially | Security: | Ownership Owned at End | Direct (D) | (Instr. 4) of Month | or Indirect (I) | (Instr. 4) | (Instr. 4) | ------------------|------------------------|------------------------------ | | ------------------|------------------------|------------------------------ | | ------------------|------------------------|------------------------------ | | ------------------|------------------------|------------------------------ | | ------------------|------------------------|------------------------------ | | ------------------|------------------------|------------------------------ | | -------------------------------------------------------------------------- Explanation of Responses: /s/ Clifford W. Illig 05/01/01 -------------------------------- ------- Signature of Reporting Person(1) Date (1) 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 (Print or Type Responses)