SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 ---------- SCHEDULE 13G (RULE 13D-102) INFORMATION STATEMENT PURSUANT TO RULES 13D-1 AND 13D-2 UNDER THE SECURITIES EXCHANGE ACT OF 1934 (CORRECTIVE AMENDMENT NO. 4) PORTA SYSTEMS CORP. ------------------- (Name of Issuer) Common Stock ------------ (Title of Class of Securities) 735647307 --------- (CUSIP Number) December 31, 1999 ----------------- (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: [ X ] Rule 13d-1(b) [ ] Rule 13d-1(c) [ ] Rule 13d-1(d) CUSIP No. 735647307 Page 1 of 5 Pages 1) Names of Reporting Persons IRS Identification No. Of Above Persons The PNC Financial Services Group, Inc. (formerly, PNC Bank Corp.) 25-1435979 2) Check the Appropriate Box if a Member of a Group (See Instructions) a) [ ] b) [ ] 3) SEC USE ONLY 4) Citizenship or Place of Organization Pennsylvania Number of Shares 5) Sole Voting Power -0- Beneficially Owned 6) Shared Voting Power 834,468 By Each Reporting 7) Sole Dispositive Power -0- Person With 8) Shared Dispositive Power -0- 9) Aggregate Amount Beneficially Owned by Each Reporting Person 834,468* *See the response to Item 6. 10) Check if the Aggregate Amount in Row (9) Excludes Certain Shares See Instructions [ ] 11) Percent of Class Represented by Amount in Row (9) 8.5 12) Type of Reporting Person (See Instructions) HC SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 ---------- SCHEDULE 13G (RULE 13D-102) INFORMATION STATEMENT PURSUANT TO RULES 13D-1 AND 13D-2 UNDER THE SECURITIES EXCHANGE ACT OF 1934 (CORRECTIVE AMENDMENT NO. 4) PORTA SYSTEMS CORP. ------------------- (Name of Issuer) Common Stock ------------ (Title of Class of Securities) 735647307 --------- (CUSIP Number) December 31, 1999 ----------------- (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: [ X ] Rule 13d-1(b) [ ] Rule 13d-1(c) [ ] Rule 13d-1(d) CUSIP No. 735647307 Page 2 of 5 Pages 1) Names of Reporting Persons IRS Identification No. Of Above Persons PNC Bancorp, Inc. 51-0326854 2) Check the Appropriate Box if a Member of a Group (See Instructions) a) [ ] b) [ ] 3) SEC USE ONLY 4) Citizenship or Place of Organization Delaware Number of Shares 5) Sole Voting Power -0- Beneficially Owned 6) Shared Voting Power 834,468 By Each Reporting 7) Sole Dispositive Power -0- Person With 8) Shared Dispositive Power -0- 9) Aggregate Amount Beneficially Owned by Each Reporting Person 834,468* *See the response to Item 6. 10) Check if the Aggregate Amount in Row (9) Excludes Certain Shares See Instructions [ ] 11) Percent of Class Represented by Amount in Row (9) 8.5 12) Type of Reporting Person (See Instructions) HC SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 ---------- SCHEDULE 13G (RULE 13D-102) INFORMATION STATEMENT PURSUANT TO RULES 13D-1 AND 13D-2 UNDER THE SECURITIES EXCHANGE ACT OF 1934 (CORRECTIVE AMENDMENT NO. 4) PORTA SYSTEMS CORP. ------------------- (Name of Issuer) Common Stock ------------ (Title of Class of Securities) 735647307 --------- (CUSIP Number) December 31, 1999 ----------------- (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: [ X ] Rule 13d-1(b) [ ] Rule 13d-1(c) [ ] Rule 13d-1(d) CUSIP No. 735647307 Page 3 of 5 Pages 1) Names of Reporting Persons IRS Identification No. Of Above Persons PNC Bank, National Association 22-1146430 2) Check the Appropriate Box if a Member of a Group (See Instructions) a) [ ] b) [ ] 3) SEC USE ONLY 4) Citizenship or Place of Organization United States Number of Shares 5) Sole Voting Power -0- Beneficially Owned 6) Shared Voting Power 834,468 By Each Reporting 7) Sole Dispositive Power -0- Person With 8) Shared Dispositive Power -0- 9) Aggregate Amount Beneficially Owned by Each Reporting Person 834,468* *See the response to Item 6. 10) Check if the Aggregate Amount in Row (9) Excludes Certain Shares See Instructions [ ] 11) Percent of Class Represented by Amount in Row (9) 8.5 12) Type of Reporting Person (See Instructions) BK Page 4 of 5 Pages ITEM 4 - OWNERSHIP: The following information is as of May 31, 2000: (a) Amount Beneficially Owned: 834,468 shares* *See the response to Item 6. (b) Percent of Class: 8.5 (c) Number of shares to which such person has: (i) sole power to vote or to direct the vote -0- (ii) shared power to vote or to direct the vote 834,468 (iii) sole power to dispose or to direct the disposition of -0- (iv) shared power to dispose or to direct the disposition of -0- ITEM 5 - OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS: A Final Amendment reflecting that each reporting person ceased to own beneficially more than 5% of the stock of the issuer was inadvertently filed on February 11, 2000. ITEM 6 - OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON: Of the total shares of Common Stock reported herein, all shares are held in Trust Accounts created by an Amended and Restated Trust Agreement dated September 20, 1983, in which Lloyd I. Miller, Jr. was Grantor and for which PNC Bank, National Association serves as Trustee. Lloyd I. Miller, III has dispositive power with respect to these shares of Common Stock held in the Trust Accounts pursuant to an Investment Advisory Agreement dated as of April 1, 1997 with PNC Bank, National Association, as Trustee and both parties have shared voting authority. Either party may terminate the Agreement on 30 days' prior written notice. ITEM 7 - IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH ACQUIRED THE SECURITY BEING REPORTED ON BY THE PARENT HOLDING COMPANY: Included are the following subsidiaries of The PNC Financial Services Group, Inc. (formerly, PNC Bank Corp.) - HC: PNC Bancorp, Inc. - HC (wholly owned subsidiary of The PNC Financial Services Group, Inc.) PNC Bank, National Association - BK (wholly owned subsidiary of PNC Bancorp, Inc.) Page 5 of 5 Pages ITEM 10 - CERTIFICATION: By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect. SIGNATURE After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. June 30, 2000 Date By: /s/ Robert L. Haunschild - ----------------------------- Signature - PNC Bank Corp. Robert L. Haunschild, Senior Vice President and Chief Financial Officer - ----------------------------------------------------------------------- Name & Title June 30, 2000 - ----------------------------- Date By: /s/ James B. Yahner - ----------------------------- Signature - PNC Bancorp, Inc. James B. Yahner, Vice President - ------------------------------- Name & Title June 30, 2000 - ----------------------------- Date By: /s/ Thomas R. Moore - ----------------------------- Signature - PNC Bank, National Association Thomas R. Moore, Vice President and Secretary - --------------------------------------------- Name & Title AN AGREEMENT TO FILE A JOINT STATEMENT WAS PREVIOUSLY FILED AS EXHIBIT A TO SCHEDULE 13G.