Sec Form 4 Filing - BIGGAR JOHN R @ PPL CORP - 2007-01-25

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 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

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1. Name and Address of Reporting Person BIGGAR JOHN R 2. Issuer Name and Ticker or Trading Symbol PPL CORP [ PPL] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Executive VP & CFO (Last) (First) (Middle) TWO NORTH NINTH STREET 3. Date of Earliest Transaction (MM/DD/YY) 01/25/2007 (Street) ALLENTOWN, PA18101 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 01/25/2007 F 6,913 ( 1 ) D $ 34.75 ( 1 ) 100,550.87 D Common Stock 01/25/2007 G 9,947 ( 1 ) D $ 0 90,603.87 D Common Stock 39,264.004 I Held in account of Mr. Biggar's spouse. Common Stock 2,273.045 ( 2 ) I Held in trust pursuant to Employee Stock Ownership Plan.

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Stock Unit (ICP) ( 3 ) 01/25/2007 A 19,590 ( 4 ) ( 4 ) Common Stock 19,590 $ 0 19,590 D Stock Unit (ICP - Cash Incentive Premium Exchange Program) ( 5 ) ( 3 ) 01/25/2007 A 4,420 ( 4 ) ( 4 ) Common Stock 4,420 $ 0 4,420 D Stock Unit (ICP) ( 6 ) ( 3 ) 01/25/2007 A 8,880 ( 6 ) ( 6 ) Common Stock 8,880 $ 0 8,880 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other BIGGAR JOHN R TWO NORTH NINTH STREET ALLENTOWN, PA18101 X Executive VP & CFO Signatures /s/Thomas D. Salus, as Attorney-In-Fact for John R. Biggar 01/29/2007 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Shares withheld by the company at the request of the executive officer to pay taxes due following expiration of the applicable restriction period relating to a prior grant of restricted stock units, under the terms of the Incentive Compensation Plan (ICP). Fair market value on vesting date was $34.75. Mr. Biggar transferred 9,947 of the vested shares from such grant to his spouses's account. ( 2 )Total includes reinvestment of dividends. ( 3 )No conversion or exercise price applies. Under the terms of the Incentive Compensation Plan (ICP), a restricted stock unit converts to a share of common stock on the applicable vesting date. ( 4 )The units would have vested on 1/25/2010; however, Mr. Biggar intends to retire effective April 1, 2006, and so the units will vest upon his retirement date and he will be entitled to sell the resulting shares of common stock at any time after six months following his retirement date. ( 5 )These restricted stock units were granted in connection with the Cash Incentive Premium Exchange Program under the Incentive Compensation Plan (ICP). Pursuant to this program, an executive officer may elect to exchange all or any portion of his cash incentive compensation for restricted stock units equal in value at the time of the grant to 140% of the cash so exchanged. ( 6 )In light of his planned retirement, Mr. Biggar was granted an additional 8,880 restricted stock units in lieu of the stock option award that he otherwise would have been granted, calculated based on the dollar value of such stock option award divided by $35.12, the closing price of PPL Corporation?s common stock on the The New York Stock Exchange on the date of grant. The restriction on these restricted stock units will lapse one year following his retirement, or March 31, 2008.

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).

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