Mark D. Andrews - 31 Dec 2025 Form 4 Insider Report for NABORS INDUSTRIES LTD (NBR)

Role
CORPORATE SECRETARY
Signature
/s/ Mark D. Andrews
Issuer symbol
NBR
Transactions as of
31 Dec 2025
Net transactions value
$0
Form type
4
Filing time
05 Jan 2026, 08:56:16 UTC
Previous filing
20 Feb 2025
Next filing
11 Feb 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Andrews Mark D CORPORATE SECRETARY C/O NABORS CORPORATE SERVICES, INC, 515 WEST GREENS ROAD, HOUSTON /s/ Mark D. Andrews 05 Jan 2026 0001414596

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction NBR Common Stock Disposed to Issuer $0 -1,582 -8% $0.000000 18,113 31 Dec 2025 Direct F1
transaction NBR Common Stock Options Exercise $0 +1,642 +9.1% $0.000000 19,755 01 Jan 2026 Direct F2

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction NBR 2023 Long Term Performance Share Units Award $0 +1,642 $0.000000 1,642 01 Jan 2026 Common Stock 1,642 Direct F3, F4
transaction NBR 2023 Long Term Performance Share Units Options Exercise $0 -1,642 -100% $0.000000 0 01 Jan 2026 Common Stock 1,642 Direct F2, F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Represents the number of TSR shares forfeited on December 31, 2025, out of a total of 1,582 TSR shares originally granted to the Reporting Person on February 14, 2023, based on the Issuer's relative total shareholder return as compared to a peer group of companies during the three-year performance period beginning on January 1, 2023 and ending on December 31, 2025, as determined on December 31, 2025, by the Compensation Committee of the Issuer's Board of Directors (the "Compensation Committee").
F2 Represents the aggregate number of Long Term 2023 Performance restricted stock units originally granted on May 18, 2023, the vesting of which was subject to the achievement of certain ROIC performance criteria, that have been earned as a result of the achievement of the applicable performance criteria. All of such shares have fully vested as of January 1, 2026.
F3 Performance restricted stock units convert into common shares on a 1-for-1 basis.
F4 On May 18, 2023, the Reporting Person was granted Performance restricted stock units, the vesting of which is subject to the achievement of certain ROIC performance criteria for a three year performance period beginning on January 1, 2023 and ending on December 31, 2025. The number of shares reported in this line item represents the number of Performance restricted stock units that were earned as a result of the achievement of such performance criteria.