Thiago Mordehachvili - 30 Sep 2026 Form 4 Insider Report for Borr Drilling Ltd (BORR)

Reporting relationship: Director
Issuer ticker: BORR
Reported as of: 30 Sep 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 02 Oct 2026, 09:35:29 UTC
Prior SEC filing: 10 Jun 2026
Source filing: View source filing
Reporting owner signature: /s/ Temi Bankole as attorney-in-fact

Key filing fact

Thiago Mordehachvili filed Form 4 for Borr Drilling Ltd (BORR) on 02 Oct 2026.

Key facts

This page summarizes Thiago Mordehachvili's Form 4 filing for Borr Drilling Ltd (BORR).
0 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 02 Oct 2026, 09:35.

Change

Previous filing in this sequence was filed on 10 Jun 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0002115381 Primary reporting owner

Mordehachvili Thiago

Relationship: Director
Address: C/O BORR DRILLING LIMITED, 2ND FLOOR 9 PAR-LA-VILLE ROAD, HAMILTON, BERMUDA
Signature: /s/ Temi Bankole as attorney-in-fact
Signature date: 02 Oct 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

BORR holding

Common Shares

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 54,545
Date: 30 Sep 2026
Ownership: Direct

BORR holding

Common Shares

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 38,145,132
Date: 30 Sep 2026
Ownership: By Granular Capital Ltd
Footnotes: F1, F2

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

BORR holding Derivative

Contract for Difference

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 0
Date: 30 Sep 2026
Ownership: By Granular Capital Ltd
Underlying class: Common Shares
Underlying amount: 2,000,000
Exercise price
Footnotes: F2, F3

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 3 footnotes

Footnote F1

Excludes 54,545 restricted stock units (RSUs) that vested in full on September 30, 2026 with each RSU representing a contingent right to receive one common share. The resulting 54,545 shares were delivered on September 30, 2026 and are now held directly by the reporting person.

Footnote F2

Granular Capital Ltd is a fund founded and managed by the reporting person.

Footnote F3

The contract for difference is a long position, has no true maturity date (as it can be rolled over continuously) and can be closed at the option of Granular Capital Ltd.