SEC FORM 3

SEC Form 3

FORM 3

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

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

Ahlstrom Lee Michael

(Last)

(First)

(Middle)

8518 WYNDHAM COURT

(Street)

HOUSTON

77040

(City)

(State)

(Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
04/29/2011

3. Issuer Name and Ticker or Trading Symbol
Noble Corp / Switzerland [ NE ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	Sr. VP - Strategic Development

5. If Amendment, Date of Original Filed (Month/Day/Year)

6. 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 Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Shares	29,405⁽¹⁾	D
Shares	216.5429	I	By Trust⁽²⁾
Shares	133.1952	I	By Trust⁽³⁾

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
1. Title of Derivative Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
Stock Options	⁽⁴⁾	02/13/2017	Shares	3,814	$35.79	D
Stock Options	⁽⁵⁾	02/07/2018	Shares	3,600	$43.01	D
Stock Options	⁽⁶⁾	02/25/2019	Shares	6,893	$24.66	D
Stock Options	⁽⁷⁾	02/06/2020	Shares	3,655	$39.46	D
Stock Options	⁽⁸⁾	02/04/2021	Shares	4,528	$37.71	D
Restricted Stock Units	⁽¹⁰⁾	⁽¹⁰⁾	Shares	2,028	$0⁽⁹⁾	D
Restricted Stock Units	⁽¹¹⁾	⁽¹¹⁾	Shares	3,182	$0⁽⁹⁾	D
Performance Vested Restricted Stock Units	⁽¹²⁾	⁽¹²⁾	Shares	6,010	$0⁽¹²⁾	D
Performance Vested Restricted Stock Units	⁽¹³⁾	⁽¹³⁾	Shares	7,134	$0⁽¹³⁾	D

Explanation of Responses:

1. Includes 1,622 shares awarded as Time Vested Restricted Stock and 13,183 shares awarded as Performance Vested Restricted Stock

2. Shares held in the Noble Drilling Corporation 401(k) Savings Plan

3. Shares held in the Noble Drilling Corpoation 401(k) Restoration Plan

4. The stock options vest in three equal annual installments beginning on the first anniversay of the grant date; 1,271 exercisable on 2/13/2008, 1,271 exercisable on 2/13/2009, 1,272 exercisable on 2/13/2010

5. The stock options vest in three equal annual installments beginning on the first anniversay of the grant date; 1,200 exercisable on 2/7/2009, 1,200 exercisable on 2/7/2010, 1,200 exercisable on 2/7/2011

6. The stock options vest in three equal annual installments beginning on the first anniversay of the grant date; 2,297 exercisable on 2/25/2010, 2,298 exercisable on 2/25/2011, 2,298 exercisable on 2/25/2012

7. The stock options vest in three equal annual installments beginning on the first anniversay of the grant date; 1,218 exercisable on 2/6/2011, 1,218 exercisable on 2/6/2012, 1,219 exercisable on 2/6/2013

8. The stock options vest in three equal annual installments beginning on the first anniversay of the grant date; 1,509 exercisable on 2/4/2012, 1,509 exercisable on 2/4/2013, 1,510 exercisable on 2/4/2014

9. Each restricted stock unit represents a contingent right to receive one share

10. The restricted stock units vest and settle as follows: 1,014 vest on 2/6/2012, 1,014 vest on 2/6/2013

11. The restricted stock units vest and settle as follows: 1,060 vest on 2/4/2012, 1,061 vest on 2/4/2013, 1,061 vest on 2/4/2014

12. Each Performance Vested Restricted Stock Unit represents a contingent right to receive one share. Performance Vested Restricted Stock Units vest upon the company achieving a total shareholder return over a three-year performance cycle (2010-2012) relative to a specified peer group(s). Grant date was 2/6/2010

13. Each Performance Vested Restricted Stock Unit represents a contingent right to receive one share. Performance Vested Restricted Stock Units vest upon the company achieving a total shareholder return over a three-year performance cycle (2011-2013) relative to a specified peer group(s). Grant date was 2/4/2011

	/s/ Julie J. Robertson By Power of Attorney Dated May 3, 2011	05/06/2011
	** Signature of Reporting Person	Date
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 5 (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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