NORTHROP GRUMMAN CORP
POS AM, 2000-11-13
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 As filed with the Securities and Exchange Commission on November 13, 2000

                                              Registration No. 333-40862-02
---------------------------------------------------------------------------

                     SECURITIES AND EXCHANGE COMMISSION
                           WASHINGTON, D.C. 20549

                            --------------------

                       POST-EFFECTIVE AMENDMENT NO. 2
                                     TO
                                  FORM S-4
                                     ON
                                  FORM S-3
                        REGISTRATION STATEMENT UNDER
                         THE SECURITIES ACT OF 1933

                            --------------------

                        NORTHROP GRUMMAN CORPORATION
           (Exact name of registrant as specified in its charter)

          DELAWARE                                        95-1055798
      (State or other                                  (I.R.S. Employer
      jurisdiction of                                 Identification No.)
      incorporation or
       organization)

                           1840 CENTURY PARK EAST
                       LOS ANGELES, CALIFORNIA 90067
                               (310) 553-6262

  (Address, including zip code, and telephone number, including area code,
                of registrant's principal executive offices)

                            --------------------

                               JOHN H. MULLAN
                   CORPORATE VICE PRESIDENT AND SECRETARY
                           1840 CENTURY PARK EAST
                       LOS ANGELES, CALIFORNIA 90067
                               (310) 553-6262

  (Name, address, including zip code, and telephone number, including area
                        code, of agent for service)

                            --------------------

                                  COPY TO:

                           THOMAS W. CHRISTOPHER
                           FRIED, FRANK, HARRIS,
                             SHRIVER & JACOBSON
                             ONE NEW YORK PLAZA
                          NEW YORK, NEW YORK 10004
                               (212) 859-8000

     APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE OF THE SECURITIES TO
THE PUBLIC: From time to time after this registration statement becomes
effective.

     If the only securities being registered on this form are being offered
pursuant to dividend or interest reinvestment plans, please check the
following box. [ ]

     If any of the securities being registered on this Form are to be
offered on a delayed or continuous basis pursuant to Rule 415 under the
Securities Act of 1933, other than securities offered only in connection
with dividend or interest reinvestment plans, check the following box. [X]

     If this Form is filed to register additional securities for an
offering pursuant to Rule 462(b) under the Securities Act, check the
following box and list the Securities Act registration statement number of
earlier effective registration statement for the same offering. [ ]

     If this Form is a post-effective amendment filed pursuant to Rule
462(c) under the Securities Act, check the following box and list the
Securities Act registration statement number of the earlier effective
registration statement for the same offering. [ ]

     If delivery of the prospectus is expected to be made pursuant to Rule
434, please check the following box. [ ]

                      --------------------------------

                      CALCULATION OF REGISTRATION FEE
--------------------------------------------------------------------------------
    TITLE OF         AMOUNT TO        PROPOSED         PROPOSED      AMOUNT OF
SECURITIES TO BE      TO BE        MAXIMUM OFFERING     MAXIMUM     REGISTRATION
   REGISTERED      REGISTERED(1)   PRICE PER SHARE     AGGREGATE        FEE
                                                    OFFERING PRICE
--------------------------------------------------------------------------------
Common Stock, par     147,316            (3)              (3)           (3)
value $1.00 per      shares(2)
share
--------------------------------------------------------------------------------

(1)  The number of shares of Common Stock registered hereby is subject to
     adjustment to prevent dilution resulting from stock splits, stock
     dividends or similar transactions.

(2)  Consisting of 147,316 shares of Common Stock reserved for issuance
     upon the conversion into Common Stock of 8 1/2% Convertible
     Subordinated Debentures due 2004 of Comptek Research, Inc. Registrant
     assumed the obligation to issue shares of Common Stock upon conversion
     of the debentures pursuant to a First Supplemental Indenture, dated as
     of November 7, 2000, among Registrant, Comptek Research and The Bank
     of New York, as Trustee (the "Trustee"), to an Indenture, dated as of
     March 24, 1999, between Comptek Research and the Trustee. The First
     Supplemental Indenture was entered into in connection with the merger
     of Yavapai Acquisition Corp., a wholly owned subsidiary of Registrant,
     with and into Comptek Research.

(3)  Not applicable. All filing fees payable in connection with the
     issuance of these securities were paid in connection with the filing
     of the Registrant's Registration Statement on Form S-4 (No. 333-40862)
     filed July 6, 2000.


<PAGE>


                              EXPLANATORY NOTE

     On August 31, 2000, we acquired Comptek Research, Inc. pursuant to an
Agreement and Plan of Merger, dated as of June 12, 2000, as amended, among
us, Yavapai Acquisition Corp., a wholly-owned subsidiary of our company, and
Comptek Research. In connection with the merger, we filed a Registration
Statement on Form S-4 (No. 333-40862) registering the shares of Northrop
Grumman common stock to be issued in connection with the merger. As a
result of the merger, we were required, pursuant to the terms of the
indenture, dated March 24, 1999, governing Comptek Research's 8 1/2%
Convertible Subordinated Debentures due 2004, to enter into a supplemental
indenture to provide, among other things, that the debentures will be
convertible into Northrop Grumman common stock instead of Comptek Research
common stock. Under the terms of the supplemental indenture, each $1,000
principal amount of the debentures is convertible into shares of Northrop
Grumman common stock at an initial conversion price of $33.940693 per
share, subject to further adjustment as provided in the indenture. As part
of our Form S-4, we also registered up to 147,316 shares to be issued in
connection with such conversion of the debentures.

     We are now amending our Form S-4, which was previously amended by
Post-effective Amendment No. 1 on Form S-8 filed with the SEC on September
19, 2000, by filing this Post-effective Amendment No. 2 on Form S-3 in
order to maintain an effective registration statement until such time as
the Comptek Research debentures may be converted into shares of Northrop
Grumman common stock. All such 147,316 shares of Northrop Grumman common
stock were previously registered on the Form S-4 and are being transferred
to the Form S-3. This Post-effective Amendment No. 2 does not replace but
is in addition to Post-effective Amendment No. 1.


<PAGE>


PROSPECTUS

                        NORTHROP GRUMMAN CORPORATION
                           1840 CENTURY PARK EAST
                       LOS ANGELES, CALIFORNIA 90067
                               (310) 553-6282

                147,316 Shares of Common Stock Issuable upon
          Conversion of 8 1/2% Convertible Subordinated Debentures

                       -----------------------------

     This prospectus relates to up to 147,316 shares of our common stock
which we may issue upon conversion of the outstanding 8 1/2% Convertible
Subordinated Debentures due 2004 of our subsidiary Comptek Research, Inc.

     You should carefully read this prospectus before you decide to acquire
our common stock upon the conversion of these securities. Our common stock
is traded on the New York Stock Exchange and the Pacific Stock Exchange
under the symbol "NOC."

                       -----------------------------

     CONSIDER CAREFULLY THE RISK FACTORS BEGINNING ON PAGE 2 OF THIS
PROSPECTUS.

     Neither the Securities and Exchange Commission nor any state
securities commission has approved or disapproved of these securities or
determined if this prospectus is truthful or complete. Any representation
to the contrary is a criminal offense.






             The date of this prospectus is November 13, 2000.


<PAGE>


                             TABLE OF CONTENTS

                                                                       Page

About Northrop Grumman Corporation...................................... 1
Risk Factors............................................................ 2
Use of Proceeds......................................................... 3
Plan of Distribution.................................................... 3
Legal Matters........................................................... 3
Experts................................................................. 3
Where You Can Find More Information..................................... 4
Documents Incorporated By Reference..................................... 5

                             -----------------

     Certain statements and assumptions in portions of documents
incorporated by reference in this prospectus, including Management's
Discussion and Analysis and elsewhere in such documents, contain or are
based on "forward-looking" information for purposes of Section 27A of the
Securities Act of 1933 and Section 21E of the Securities Exchange Act of
1934 and involve risks and uncertainties. Such "forward-looking"
information includes statements and assumptions with respect to future
revenues, expected program performance and cash flows, the outcome of
contingencies including litigation and environmental remediation, the
effect of completed and planned acquisitions and divestitures of
businesses, and anticipated costs of capital investments. Our operations
are subject to various risks and uncertainties resulting from our position
as a supplier, either directly or as a subcontractor or team member, to the
U.S. Government and its agencies as well as to foreign governments and
agencies. Actual outcomes are dependent upon factors, including, without
limitation, our successful performance of internal plans; government
customers' budgetary constraints; customer changes in short-range and
long-range plans; domestic and international competition in both the
defense and commercial areas; product performance and the timing of
deliveries under existing contracts; continued development and acceptance
of new products; performance issues with key suppliers and subcontractors;
government import and export policies; termination of government contracts;
the outcome of political and legal processes; the results of acquisitions
and divestitures and environmental remediation; legal, financial and
governmental risks related to international transactions and global needs
for military aircraft, military and civilian electronic systems and support
and information technology, as well as other economic, political and
technological risks and uncertainties.

     You should rely only on the information contained in this prospectus.
We have not authorized anyone to provide you with different information. We
are not making an offer of these securities in any jurisdiction where the
offer or sale is not permitted. You should not assume that the information
contained in this prospectus is accurate as of any date other than the date
on the front cover of this prospectus.

                       -----------------------------


<PAGE>


                     ABOUT NORTHROP GRUMMAN CORPORATION

General

     Northrop Grumman operates principally in the electronics, integrated
systems and information technology segments of the defense industry.
Northrop Grumman is a leading designer, systems integrator and manufacturer
of military surveillance and combat aircraft, defense electronics and
systems, airspace management systems, information systems, marine systems,
precision weapons, space systems, and commercial and military
aerostructures.

     Northrop Grumman's major electronics area includes airborne radar,
such as fire-control radars for F-16 and F-22 fighters, B-1B bombers and
AH-64D Apache helicopters, and the surveillance radar for the Air Force's
Airborne Warning and Control System. Other defense electronics programs are
BAT, an acoustically self-guided antiarmor submunition for the Army;
space-based sensor systems, and airborne electronic countermeasures, which
protect pilots and aircraft by disrupting enemy radar and hostile weapons
systems. Northrop Grumman is a leader in airspace management systems and
has produced more than 400 civilian air traffic control systems for
surveillance of airborne and airport surface traffic in 12 countries.

     Major integrated systems programs include the Joint Surveillance
Target Attack Radar System, a powerful airborne surveillance and target
acquisition system for which Northrop Grumman is the prime contractor.
Northrop Grumman also is prime contractor for the U.S. Navy's E-2C Hawkeye,
an early warning and control aircraft, and the Navy's EA-6B Prowler, an
electronic warfare aircraft. Northrop Grumman's major integrated systems
programs also include the Air Force's B-2 stealth bomber, a long-range,
strategic bomber that can penetrate sophisticated air defenses. Northrop
Grumman is prime contractor for the B-2 program. Other aircraft programs
are the Navy F/A-18 Hornet strike fighter and the Joint Strike Fighter. For
the F/A-18, Northrop Grumman produces the center and aft fuselage, vertical
tails and all associated subsystems as principal subcontractor to Boeing.
On the Joint Strike Fighter program, Northrop Grumman is a member of the
Lockheed Martin team working under one of two concept demonstration
contracts awarded in 1996. The winner of this phase of the competition is
scheduled to proceed to engineering and manufacturing development beginning
in early 2001. Approximately 3,000 Joint Strike Fighters are planned for
the U.S Air Force, Navy and Marine Corps, as well as the British Royal
Navy.

     In August 1997, Northrop Grumman completed a merger with Logicon, a
leading defense information technology company. Logicon, which operates as
a Northrop Grumman subsidiary, provides military and commercial information
systems and services for defense, civil and industrial customers. Its core
markets include Command, Control, Communications and Intelligence (C/3/I),
information technology, training and simulation, battle management and
mission planning.

     In addition, Northrop Grumman designs, develops, operates and supports
computer systems for scientific and management information. It provides
systems integration and related information services for federal, state and
local government agencies and private industry. Northrop Grumman also
provides military base support functions and aircraft maintenance at a
number of U.S. Government facilities.

     On July 24, 2000, Northrop Grumman closed the sale of its commercial
aerostructures business to The Carlyle Group. As a result of this
transaction we received approximately $668 million in cash and $175 million
in the form of a note receivable and The Carlyle Group assumed $400 million
in post-employment benefit liabilities. We expect to use the proceeds from
this disposition for the repayment of debt and for general corporate
purposes, including possible strategic acquisitions.

     Northrop Grumman's three reportable segments are its three operating
units: Integrated Systems (IS), Electronic Sensors and Systems (ESS) and
Logicon, the company's information technology sector. The IS segment
includes the design, development and manufacturing of aircraft and aircraft
subassemblies. The ESS segment includes the design, development,
manufacturing and integration of electronic systems and components for
military and commercial use. Logicon, the company's information technology
segment, includes the design, development, operation and support of
computer systems for scientific and management information.

     Additional information concerning Northrop Grumman is included in the
Northrop Grumman reports incorporated by reference in this prospectus. See
"Where You Can Find More Information."

     Our principal executive offices are located at 1840 Century Park East,
Los Angeles, California 90067. Our telephone number is (310) 553-6262.

Recent Developments

Acquisition of Comptek Research, Inc.
-------------------------------------

     On August 31, 2000, we acquired Comptek Research, Inc., which develops
and integrates surveillance and communications systems used primarily for
military applications, in a stock-for-stock transaction. The aggregate
consideration paid to former Comptek Research shareholders consisted of
approximately 1,775,906 shares of our common stock issued in exchange for
approximately 6,344,788 outstanding shares of Comptek Research common stock
at a conversion ratio of 0.2799 shares of our common stock for each share
of Comptek Research common stock. In addition, former Comptek Research
shareholders were paid cash in lieu of fractional shares of our common
stock. We also assumed options to acquire approximately 598,277 shares of
Comptek Research common stock which are exercisable into approximately
167,458 shares of our common stock.

     As a result of the merger, we were required, pursuant to the terms of
the indenture, dated March 24, 1999, governing Comptek Research's 8 1/2%
Convertible Subordinated Debentures due 2004 to enter into a supplemental
indenture to provide, among other things, that the debentures will be
convertible into Northrop Grumman common stock instead of Comptek Research
common stock. Under the terms of the supplemental indenture, each $1,000
principal amount of the debentures is convertible into shares of Northrop
Grumman common stock at an initial conversion price of $33.940693 per
share, subject to further adjustment as provided in the indenture.

Acquisition of Federal Data Corporation
---------------------------------------

     On October 23, 2000, we acquired Federal Data Corporation for
approximately $302 million. Federal Data is involved in systems integration
and the provision of information technology products and services to
agencies of the U.S. Government, and will be integrated with the operations
of Logicon, Inc., our information technology sector.

Acquisition of Sterling Software (U.S.) Inc.
--------------------------------------------

     On October 31, 2000, we acquired Sterling Software (U.S.) Inc. for
approximately $150 million. Sterling Software (U.S.) provides information
technology services primarily to the defense and intelligence agencies of
the U.S. Government. It will be integrated with the operations of Logicon.

                                RISK FACTORS

     You should consider carefully the following information in conjunction
with the other information contained in this prospectus and the documents
and risk factors incorporated by reference herein before deciding to
acquire our common stock.

WE MAY FACE CHALLENGES IN INTEGRATING OUR RECENT ACQUISITIONS AND, AS A
RESULT, MAY NOT REALIZE THE EXPECTED BENEFITS OF SUCH ACQUISITIONS.

     The combination of Comptek Research, Inc., Federal Data Corporation
and Sterling Software (U.S.) Inc. with Northrop Grumman involves the
integration of four companies that have previously operated independently.
We may not be able to integrate the operations of the acquisitions with our
operations without encountering difficulties. The consolidation of
functions, the integration of departments, systems and procedures and the
relocation of staff may present management challenges. The integration may
not be completed as rapidly as we expect to achieve the anticipated
benefits of the mergers. The successful integration of Northrop Grumman and
the recent acquisitions will require, among other things, integration of
products and services, sales and marketing, information and software
systems, coordination of employee retention, hiring and training, and
coordination of ongoing and future research and development efforts. The
diversion of the attention of management to the integration efforts and any
difficulties encountered in combining operations could adversely affect the
combined company's business.

THE SALE OF OUR COMMERCIAL AEROSTRUCTURES DIVISION MAY HAVE A NEGATIVE
IMPACT ON OUR BUSINESS, FINANCIAL CONDITION OR OPERATING RESULTS.

     On July 24, 2000, we closed the sale of our commercial aerostructures
business to The Carlyle Group. This disposition may have a negative impact
on our business, financial condition and operating results. In fiscal 1999,
our aerostructures business generated approximately $1,379 billion in
revenues and approximately $6 million in operating profits. The loss of
these revenues and operating profits may have a material effect upon our
financial results. As a result of this transaction we received
approximately $668 million in cash and $175 million in face amount of a
note receivable, and The Carlyle Group assumed approximately $400 million
in post-employment benefit liabilities. We expect to use the proceeds from
this sale for general corporate purposes, including the recently completed
acquisitions of Federal Data Corporation and Sterling Software (U.S.) Inc.
and other possible strategic acquisitions. Our application of these
proceeds may not, however, offset the loss of revenues and operating
profits from our commercial aerostructures business in the near term, or at
all. We also expect to lose some important members of our management team
as part of this disposition. In addition, our business reputation, as well
as our relationships with various customers of our aerostructures business
that will continue to be customers of our continuing businesses, may become
more attenuated or otherwise deteriorate. Furthermore, those strategic
acquisitions that we have made since the sale of our commercial
aerostructures business or that we may undertake with the proceeds from
this disposition may not work out well and may have an adverse effect upon
our business and financial results.

                              USE OF PROCEEDS

     We will not receive any cash proceeds from the issuance of the common
stock being offered hereby. The Comptek Research debentures being converted
will, upon issuance of the common stock, be extinguished.

                            PLAN OF DISTRIBUTION

     We will issue shares of our common stock upon conversion of the
outstanding Comptek Research 8 1/2% Convertible Subordinated Debentures by
the holders of the debentures.

                               LEGAL MATTERS

     The validity of the securities offered hereby will be passed upon for
us by John H. Mullan, Corporate Vice President and Secretary of Northrop
Grumman. Mr. Mullan is paid a salary by us, is a participant in various
employee benefit plans offered to our employees generally and owns and has
options to purchase shares of Northrop Grumman common stock.

                                  EXPERTS

     The consolidated financial statements as of December 31, 1999 and 1998
and for each of the three years in the period ended December 31, 1999 and
the related financial statement schedule incorporated in this prospectus by
reference from Northrop Grumman's Current Report on Form 8-K dated August
8, 2000 have been audited by Deloitte & Touche LLP, independent auditors,
as stated in their report, which is incorporated herein by reference, and
have been so incorporated in reliance upon the report of such firm given
upon their authority as experts in accounting and auditing.

     With respect to the unaudited interim financial information as of
March 31, 2000, June 30, 2000 and September 30, 2000 and for the periods
ended March 31, 2000 and 1999, June 30, 2000 and 1999 and September 30,
2000 and 1999 which is incorporated herein by reference, Deloitte & Touche
LLP have applied limited procedures in accordance with professional
standards for a review of such information. However, as stated in their
reports included in Northrop Grumman's Current Report on Form 8-K dated
August 8, 2000 and Northrop Grumman's Quarterly Report on Form 10-Q for the
periods ended March 31, 2000, June 30, 2000 and September 30, 2000 and
incorporated by reference herein, they did not audit and they do not
express an opinion on that interim financial information. Accordingly, the
degree of reliance on their report on such information should be restricted
in light of the limited nature of the review procedures applied. Deloitte &
Touche LLP are not subject to the liability provisions of Section 11 of the
Securities Act of 1933 for their reports on the unaudited interim financial
information because those reports are not "reports" or a "part" of the
registration statement prepared or certified by an accountant within the
meaning of Sections 7 and 11 of the Act.

     The consolidated financial statements and schedule of Comptek Research
as of March 31, 2000 and 1999 and for each of the years in the three-year
period ended March 31, 2000, have been incorporated by reference herein and
in the registration statement in reliance on the reports of KPMG LLP,
independent certified public accountants, incorporated by reference herein,
and upon the authority of said firm as experts in accounting and auditing.

     With respect to the unaudited interim financial information of Comptek
Research, Inc. and subsidiaries for the periods ended June 30, 2000 and
1999, incorporated by reference herein, KPMG LLP have reported that they
applied limited procedures in accordance with professional standards for a
review of such information. However, their separate report included in
Comptek Research's quarterly report on Form 10-Q for the quarter ended June
30, 2000, and incorporated by reference herein, states that they did not
audit and they do not express an opinion on that interim financial
information. Accordingly, the degree of reliance on their report on such
information should be restricted in light of the limited nature of the
procedures applied. KPMG LLP is not subject to the liability provisions of
Section 11 of the Securities Act of 1933 for their report on the unaudited
interim financial information because that report is not a "report" or a
"part" of the registration statement prepared or certified by an accountant
within the meaning of Sections 7 and 11 of the Act.

                    WHERE YOU CAN FIND MORE INFORMATION

     We file reports and other information with the SEC on a regular basis
that contain financial information and results of operations. You may read
and copy materials that we have filed with the SEC at the SEC's public
reference room at Judiciary Plaza, 450 Fifth Street, N.W., Room 1024,
Washington, DC 20549. You can also obtain copies of filed documents, at
prescribed rates, by mail from the Public Reference Section of the SEC at
its Judiciary Plaza location, listed above, or by telephone at
1-800-SEC-0330, or electronically through the SEC's Web Site at
http://www.sec.gov.

     Our common stock is listed on the New York Stock Exchange and the
Pacific Stock Exchange under the symbols "NOC." Our SEC filings can also be
read and obtained at the following addresses:

     The New York Stock Exchange        Pacific Exchange
     11 Wall Street                     301 Pine Street
     New York, NY  10005                San Francisco, CA  94104

     We furnish our shareholders with annual reports containing our audited
financial statements and with proxy material for our annual meetings
complying with the proxy requirements of the Securities Exchange Act of
1934.

     We have filed a post-effective amendment on Form S-3 to a registration
statement on Form S-4 (No. 333-40862) in order to maintain an effective
registration statement until such time as the Comptek Research debentures
may be converted into shares of Northrop Grumman Common Stock. This
prospectus is part of that Form S-3. This prospectus does not contain all
of the information contained in the registration statement, certain
portions of which have been omitted as permitted by SEC rules. While
complete in material respects, descriptions of documents in this prospectus
are nonetheless summaries. Please refer to the full text of documents filed
as exhibits for complete descriptions.

                    DOCUMENTS INCORPORATED BY REFERENCE

     The following documents filed by Northrop Grumman with the SEC are
hereby incorporated by reference:

     o    Annual Report on Form 10-K for the fiscal year ended December 31,
          1999, as filed on February 24, 2000.

     o    Quarterly Reports on Form 10-Q for the period ended March 31,
          2000, as filed on May 9, 2000, for the period ended June 30,
          2000, as filed on August 11, 2000, and for the period ended
          September 30, 2000, as filed on November 6, 2000.

     o    Proxy Statement for the Annual Meeting of Stockholders held on
          May 17, 2000, as filed on April 3, 2000.

     o    The description of Northrop Grumman's common stock set forth in
          Northrop Grumman's registration statement on Form 8-A filed by
          Northrop Grumman on September 22, 1988 pursuant to Section 12 of
          the Securities Exchange Act of 1934, including any amendment or
          report filed for purposes of updating the description.

     o    Tender Offer Statement on Schedule TO, as filed on July 6, 2000,
          as amended.

     o    Current Report on Form 8-K as filed on August 8, 2000.

     o    Registration Statement on Form S-4 (registration no. 333-40862)
          filed with the SEC on August 22, 2000, as amended.

     o    Post-Effective Amendment No. 1 to Form S-4 on Form S-8
          (registration No. 333-40862-01) filed with the SEC on September
          19, 2000.

     The following documents filed by Comptek with the SEC are hereby
incorporated by reference:

     o    Annual Report on Form 10-K for the fiscal year ended March 31,
          2000, as filed on June 27, 2000 and as amended.

     o    Quarterly Report on Form 10-Q for the period ended June 30, 2000,
          as filed on August 11, 2000.

     o    The description of Comptek's common stock set forth in Comptek's
          registration statement on Form 8-A filed by Comptek on July 1,
          1987 pursuant to Section 12 of the Exchange Act, including any
          amendment or report filed for purposes of updating the
          description.

     o    Current Report on Form 8-K, as filed on June 12, 2000.

     o    Current Report on Form 8-K, as filed on June 22, 2000.

     o    Solicitation/Recommendation Statement on Schedule 14D-9, as filed
          on July 6, 2000, as amended.


Subsequent Filings

     All documents filed by us and Comptek pursuant to Section 13(a), 13(c),
14 or 15(d) of the Securities Exchange Act of 1934 after the date of this
document. These include periodic reports, such as annual reports on Form
10-K, quarterly reports on Form 10-Q and current reports on Form 8-K, as
well as proxy statements.

     Documents incorporated by reference are available without charge upon
request to:

          Investor Relations                 Investor Relations
          Northrop Grumman Corporation       Comptek Research, Inc.
          1840 Century Park East             2732 Transit Road
          Los Angeles, California  90067     Buffalo, New York 14224
          (310) 553-6262                     (716) 677-4070

<PAGE>


                                  PART II

                   INFORMATION NOT REQUIRED IN PROSPECTUS

ITEM 14.   OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION

     Northrop Grumman Inc. will pay all expenses incident to the sale of
shares being registered other than any commissions and discounts of
underwriters, dealers or agents and any transfer taxes. Such expenses are
set forth in the following table. All of the amounts shown are estimates
except the SEC registration fee.

     SEC registration fee.........................    $ *
     Legal fees and expenses......................    $30,000
     Accounting fees and expenses.................    $ 3,000
     Miscellaneous expenses.......................    $     0

          Total...................................    $33,000
                                                      ============
*    Not applicable

ITEM 15.   INDEMNIFICATION OF DIRECTORS AND OFFICERS.

     The Delaware General Corporation Law (the "DGCL") authorizes
corporations to limit or eliminate the personal liability of directors to
the corporation and its stockholders for monetary damages in connection
with the breach of a director's fiduciary duty of care. The duty of care
requires that, when acting on behalf of the corporation, directors must
exercise informed business judgment based on all material information
reasonably available to them. Absent the limitation authorized by the DGCL,
directors could be accountable to corporations and their stockholders for
monetary damages for conduct that does not satisfy such duty of care.
Although the DGCL does not change a director's duty of care, it enables
corporations to limit available relief to equitable remedies such as
injunction or rescission. Northrop Grumman's certificate of incorporation
limits the liability of directors to the corporation or its stockholders to
the fullest extent permitted by the DGCL as in effect form time to time.
Specifically, directors of Northrop Grumman will not be personally liable
for monetary damages for breach of a fiduciary duty as a director, except
for liability (i) for any breach of the director's duty of loyalty to the
corporation or to its stockholders, (ii) for acts or omissions not in good
faith or which involve intentional misconduct or a knowing violation of
law, (iii) under Section 174 of the DGCL or (iv) for any transaction from
which the director derives any improper personal benefit.

     The bylaws of Northrop Grumman provide that the corporation shall
indemnify its officers, directors and employees to the fullest extent
permitted by the DGCL. Northrop Grumman believes that indemnification under
its bylaws covers at least negligence and gross negligence on the part of
the indemnified parties.

     Northrop Grumman has entered into an agreement with each of its
directors and certain of its officers indemnifying them to the fullest
extent permitted by the foregoing. Northrop Grumman has also purchased
director and officer liability insurance.

ITEM 16.   EXHIBITS

     The following is a list of all exhibits filed as part of this
registration statement:

Exhibit
Number      Exhibit Description
------      -------------------

2.1         Agreement and Plan of Merger, dated as of June 12, 2000,
            among Northrop Grumman Corporation, Comptek Research, Inc.
            and Yavapai Acquisition Corp (incorporated by reference to
            Annex B to Northrop Grumman's Registration Statement on Form
            S-4 (Reg. No. 333-40862) dated August 22, 2000).

2.1A        First Amendment to Agreement and Plan of Merger, dated as of
            August 7, 2000, among Northrop Grumman Corporation, Comptek
            Research, Inc. and Yavapai Acquisition Corp. (incorporated by
            reference to Exhibit 2.1A to Northrop Grumman's Registration
            Statement on Form S-4 (Reg. No. 333-40862) dated August 22,
            2000).

2.2         Tender Agreement, dated as of June 15, 2000, among Yavapai
            Acquisition Corp. and the shareholders listed in the
            signature pages thereto (incorporated by reference to Annex C
            to Northrop Grumman's Registration Statement on From S-4
            (Reg. No. 333-40862) dated August 22, 2000).

4.1         Specimen Common Stock Certificate (incorporated by reference to
            Exhibit 4.8 of Northrop  Grumman's  Registration  Statement  on
            Form S-3 (33-85633), dated August 20, 1999).

4.2         Indenture between Comptek Research, Inc. and Bank of New
            York, as Trustee, dated March 24, 1999 (incorporated by
            reference to Exhibit 4.1(a) to Comptek Research, Inc.'s
            Registration Statement on Form S-3 (Reg. No. 333-77045) dated
            April 26, 1999).

4.3*        First Supplemental Indenture between Comptek Research, Inc.,
            Northrop Grumman Corporation and Bank of New York, as
            Trustee, dated November 7, 2000.

5.1*        Opinion of John H. Mullan regarding the validity of the
            securities being registered.

15.1*       Letter from Independent Accountant regarding unaudited
            accounting information for Northrop Grumman.

15.2*       Letter from Independent Accountant regarding unaudited
            accounting information for Comptek Research.

23.1*       Consent of Deloitte & Touche, LLP for Northrop Grumman.

23.2*       Consent of KPMG LLP for Comptek Research.

23.3        Consent of John H. Mullan (included in opinion filed
            as Exhibit 5.1).

24.1        Power of Attorney (incorporated by reference to Northrop
            Grumman's Registration Statement on Form S-4 (Reg. No.
            333-40862) dated August 22, 2000)

----------
*  Filed herewith



ITEM 17.   UNDERTAKINGS

     (a)  The undersigned registrant hereby undertakes:

          (1)  To file, during any period in which offers or sales are
               being made, a post-effective amendment to this registration
               statement:

               (i)  To include any prospectus required by Section 10(a)(3)
                    of the Securities Act of 1933;

               (ii) To reflect in the prospectus any facts or events
                    arising after the effective date of the registration
                    statement (or the most recent post-effective amendment
                    thereof) which, individually or in the aggregate,
                    represent a fundamental change in the information set
                    forth in the registration statement. Notwithstanding
                    the foregoing, any increase or decrease in volume of
                    securities offered (if the total dollar value of
                    securities offered would not exceed that which was
                    registered) and any deviation from the low or high end
                    of the estimated maximum offering range may be
                    reflected in the form of prospectus filed with the SEC
                    pursuant to Rule 424(b) if, in the aggregate, the
                    changes in volume and price represent no more than 20
                    percent change in the maximum aggregate offering price
                    set forth in the "Calculation of Registration Fee"
                    table in the effective registration statement;

               (iii) To include any material information with respect to
                    the plan of distribution not previously disclosed in
                    the registration statement or any material change to
                    such information in the registration statement;

               Provided, however, that paragraphs (a)(1)(i) and (a)(1)(ii)
               of this section do not apply if the registration statement
               is on Form S-3, Form S-8 or Form F-3, and the information
               required to be included in a post-effective amendment by
               those paragraphs is contained in periodic reports filed with
               or furnished to the SEC by the registrant pursuant to
               Section 13 or 15(d) of the Securities Exchange Act of 1934
               that are incorporated by reference in the registration
               statement.

          (2)  That, for the purpose of determining any liability under the
               Securities Act of 1933, each such post-effective amendment
               shall be deemed to be a new registration statement relating
               to the securities offered therein, and the offering of such
               securities at that time shall be deemed to be the initial
               bona fide offering thereof.

          (3)  To remove from registration by means of a post-effective
               amendment any of the securities being registered which
               remain unsold at the termination of the offering.

          (4)  If the registrant is a foreign private issuer, to file a
               post-effective amendment to the registration statement to
               include any financial statements required by Section
               210.3-19 of this chapter at the start of any delayed
               offering or throughout a continuous offering. Financial
               statements and information otherwise required by Section
               10(a)(3) of the Act need not be furnished, provided that the
               registrant includes in the prospectus, by means of a
               post-effective amendment, financial statements required
               pursuant to this paragraph (a)(4) and other information
               necessary to ensure that all other information in the
               prospectus is at least as current as the date of those
               financial statements. Notwithstanding the foregoing, with
               respect to registration statements on Form F-3, a
               post-effective amendment need not be filed to include
               financial statements and information required by Section
               10(a)(3) of the Act or Section 210.3-19 of this chapter if
               such financial statements and information are contained in
               periodic reports filed with or furnished to the Commission
               by the registrant pursuant to Section 13 or Section 15(d) of
               the Securities Exchange Act of 1934 that are incorporated by
               reference on the Form F-3.

     (b) The undersigned registrant hereby undertakes that, for purposes of
determining any liability under the Securities Act of 1933, each filing of
the registrant's annual report pursuant to section 13(a) or section 15(d)
of the Securities Exchange Act of 1934 (and, where applicable, each filing
of an employee benefit plan's annual report pursuant to section 15(d) of
the Securities Exchange Act of 1934) that is incorporated by reference in
the registration statement shall be deemed to be a new registration
statement relating to the securities offered therein, and the offering of
such securities at that time shall be deemed to be the initial bona fide
offering thereof.

     (c) Insofar as indemnification for liabilities arising under the
Securities Act of 1933, as amended ("Act") may be permitted to directors,
officers and controlling persons of the registrant pursuant to the
foregoing provisions, or otherwise, the registrant has been advised that in
the opinion of the Securities and Exchange Commission such indemnification
is against public policy as expressed in the Act and is, therefore,
unenforceable. In the event that a claim for indemnification against such
liabilities (other than the payment by the registrant of expenses incurred
or paid by a director, officer or controlling person of the registrant in
the successful defense of any action, suit or proceeding) is asserted by
such director, officer or controlling person in connection with the
securities being registered, the registrant will, unless in the opinion of
its counsel the matter has been settled by controlling precedent, submit to
a court of appropriate jurisdiction the question whether such
indemnification by it is against public policy as expressed in the Act and
will be governed by the final adjudication of such issue.


<PAGE>


                                 SIGNATURES

     Pursuant to the requirements of the Securities Act of 1933, the
registrant certifies that it has reasonable grounds to believe that it
meets all of the requirements for filing on Form S-3 and has duly caused
this registration statement to be signed on its behalf by the undersigned,
thereunder duly authorized in the City of Los Angeles, State of California
on November 13, 2000.


                                    Northrop Grumman Corporation

                                    By: /s/ John H. Mullan
                                       ------------------------------------
                                                 John H. Mullan
                                                 Attorney in Fact*

     Pursuant to the requirements of the Securities Act of 1933, this
registration statement has been signed by the following persons in the
capacities and on the dates indicated.

           Signature                   Title                       Date
           ---------                   -----                       ----

/s/ Kent Kresa                Chairman of the Board,          November 13, 2000
----------------------------     President and Chief
          Kent Kresa*            Executive Officer and
                                 Director (Principal
                                 Executive Officer)



/s/ Richard B. Waugh, Jr.     Corporate Vice President and    November 13, 2000
----------------------------     Chief Financial Officer
     Richard B. Waugh, Jr.*      (Principal Financial
                                 Officer and Principal
                                 Accounting Officer)



/s/ Jack R. Borsting             Director                     November 13, 2000
----------------------------
      Jack R. Borsting*



/s/ John T. Chain, Jr.           Director                     November 13, 2000
----------------------------
     John T. Chain, Jr.*



/s/ Vic Fazio                    Director                     November 13, 2000
----------------------------
         Vic Fazio*


<PAGE>


           Signature                   Title                  Date
           ---------                   -----                  ----

/s/ Phillip Frost                Director                     November 13, 2000
----------------------------
        Phillip Frost*



/s/ Robert A. Lutz               Director                     November 13, 2000
----------------------------
       Robert A. Lutz*



/s/ Aulana L. Peters             Director                     November 13, 2000
----------------------------
       Aulana L. Peters*



/s/ John E. Robson               Director                     November 13, 2000
----------------------------
        John E. Robson*



/s/ Richard M. Rosenberg         Director                     November 13, 2000
----------------------------
     Richard M. Rosenberg*



/s/ John Brooks Slaughter        Director                     November 13, 2000
----------------------------
     John Brooks Slaughter*



/s/ Richard J. Stegemeier        Director                     November 13, 2000
----------------------------
     Richard J. Stegemeier*



                                 Director                     November 13, 2000
----------------------------
      Charles R. Larson


*By: John H. Mullan                                           November 13, 2000
    ------------------------
         Attorney in Fact
   * By authority of powers of
     attorney filed with this
     registration statement


<PAGE>


                               EXHIBIT INDEX

Exhibit
Number   Exhibit Description                                     Location
------   -------------------                                     --------

2.1      Agreement and Plan of Merger, dated as of June       Incorporated
         12, 2000, among Northrop Grumman Corporation,        by reference.
         Comptek Research, Inc. and Yavapai Acquisition
         Corp.

2.1A     First Amendment to Agreement and Plan of Merger,     Incorporated
         dated as of August 7, 2000, among Northrop           by reference.
         Grumman Corporation, Comptek Research, Inc.
         and Yavapai Acquisition Corp.

2.2      Tender Agreement, dated as of June 15, 2000,         Incorporated
         among Yavapai Acquisition Corp. and the              by reference.
         shareholders listed in the signature pages
         thereto.

4.1      Specimen Common Stock Certificate.                   Incorporated
                                                              by reference.

4.2      Indenture between Comptek Research, Inc. and         Incorporated
         Bank of New York, as Trustee, dated March 24,        by reference.
         1999.

4.3      First Supplemental Indenture between Comptek         Filed herewith.
         Research, Inc., Northrop Grumman Corporation and
         Bank of New York, as Trustee, dated November 7,
         2000.

5.1      Opinion of John H. Mullan regarding the validity     Filed herewith.
         of the securities being registered.

15.1     Letter from Independent Accountant regarding         Filed herewith.
         unaudited accounting information (for Northrop
         Grumman).

15.2     Letter from Independent Accountant regarding         Filed herewith.
         unaudited accounting information (for Comptek
         Research).

23.1     Consent of Deloitte & Touche, LLP for Northrop       Filed herewith.
         Grumman.

23.2     Consent of KPMG LLP for Comptek Research.            Filed herewith.

23.3     Consent of John H. Mullan.                           Filed herewith.

24.1     Power of Attorney                                    Incorporated
                                                              by reference.


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