Borr Drilling director receives 54,545 vested shares

Q: How many BORR shares did director Thiago Mordehachvili hold directly?

As of September 30, 2026, Thiago Mordehachvili reported 54,545 common shares held directly. The shares were delivered after 54,545 restricted stock units vested in full on that date.

Q: What were the terms of Granular Capital's BORR contract for difference?

Granular Capital Ltd's long position referenced 2,000,000 common shares. The contract has no true maturity date, can be rolled over continuously, and can be closed at Granular Capital Ltd's option.

Granular Capital Ltd's reported position includes 38,145,132 common shares and a contract for difference referencing 2,000,000 common shares.

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Rhea-AI Filing Summary

Borr Drilling Ltd (BORR) director Thiago Mordehachvili reported 54,545 common shares held directly as of September 30, 2026, after 54,545 restricted stock units vested in full and the shares were delivered that day.

He also reported 38,145,132 common shares held indirectly by Granular Capital Ltd, a fund he founded and manages, and a long contract for difference referencing 2,000,000 common shares.

Insider Trade Summary

3 transactions reported

Mixed 3 txns

Insider Mordehachvili Thiago

Role Director

Type	Security	Shares	Price	Value
holding	Contract for Difference ^{F3, F2}	--	--	--
holding	Common Shares	--	--	--
holding	Common Shares ^{F1, F2}	--	--	--

Holdings After Transaction: Contract for Difference — 0 contracts for 2,000,000 underlying shares (Indirect, By Granular Capital Ltd); Common Shares — 54,545 shares (Direct); Common Shares — 38,145,132 shares (Indirect, By Granular Capital Ltd)

Footnotes (3)

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.
F2. Granular Capital Ltd is a fund founded and managed by the reporting person.
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.

Key Figures

Direct common shares: 54,545 shares Indirect common shares: 38,145,132 shares Restricted stock units vested: 54,545 RSUs +1 more

4 metrics

Direct common shares 54,545 shares Held directly as of September 30, 2026

Indirect common shares 38,145,132 shares Held by Granular Capital Ltd as of September 30, 2026

Restricted stock units vested 54,545 RSUs Vested in full on September 30, 2026

Contract for difference underlying shares 2,000,000 common shares Granular Capital Ltd long position

Key Terms

restricted stock units (RSUs), Contract for Difference, long position

3 terms

restricted stock units (RSUs) financial

"54,545 restricted stock units (RSUs) that vested in full"

Restricted stock units (RSUs) are a type of company promise to give employees shares of stock in the future, usually after certain conditions like working for a set time. They are like a gift promised today that you receive later, which can become valuable if the company's stock price goes up. RSUs matter because they are a way companies reward employees and can be a significant part of compensation.

Contract for Difference financial

"Contract for Difference"

A Contract for Difference (CFD) is a financial agreement where you bet on whether the price of an asset, like a stock or gold, will go up or down. If your prediction is correct, you make a profit; if not, you lose money. It allows you to trade on price changes without actually owning the asset itself.

long position financial

"The contract for difference is a long position"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many BORR shares did director Thiago Mordehachvili hold directly?

As of September 30, 2026, Thiago Mordehachvili reported 54,545 common shares held directly. The shares were delivered after 54,545 restricted stock units vested in full on that date.

What were the terms of Granular Capital's BORR contract for difference?

Granular Capital Ltd's long position referenced 2,000,000 common shares. The contract has no true maturity date, can be rolled over continuously, and can be closed at Granular Capital Ltd's option.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 10/02/2026 - 09:36 AM Accepted by SEC EDGAR 10/02/2026 - 09:35 AM

SEC Form 4

FORM 4

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
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Mordehachvili Thiago

(Last)

(First)

(Middle)

C/O BORR DRILLING LIMITED

2ND FLOOR 9 PAR-LA-VILLE ROAD

(Street)

HAMILTON

HM11

(City)

(State)

(Zip)

BERMUDA

(Country)

2. Issuer Name and Ticker or Trading Symbol
Borr Drilling Ltd [ BORR ]

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

X	Director	10% Owner
	Officer (give title below)	Other (specify below)

2a. Foreign Trading Symbol
[BORR]

3. Date of Earliest Transaction (Month/Day/Year)
09/30/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Shares								54,545	D
Common Shares								38,145,132⁽¹⁾	I	By Granular Capital Ltd⁽²⁾

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 (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	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 (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (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: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Contract for Difference	⁽³⁾							⁽³⁾	⁽³⁾	Common Shares	2,000,000		0	I	By Granular Capital Ltd⁽²⁾

Explanation of Responses:

1. 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.

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

3. 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.

Remarks:

	/s/ Temi Bankole as attorney-in-fact	10/02/2026
	** 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 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR