Borr Drilling director buys 1M company shares

Borr Drilling Ltd (BORR) director Tor Olav Trøim, through entity Drew Holdings Ltd., purchased 1,000,000 common shares on September 16, 2026 at $4.2995 per share, reported as indirect ownership.

Rhea-AI Filing Summary

Borr Drilling Ltd (BORR) director Tor Olav Trøim, through entity Drew Holdings Ltd., purchased 1,000,000 common shares on September 16, 2026 at $4.2995 per share, reported as indirect ownership. Following this, he is reported with 30,385,941 indirectly held shares and 81,867 directly held shares, including 54,545 RSUs scheduled to vest on September 30, 2026 if he continues serving as a director. No Rule 10b5‑1 trading plan is indicated.

Insider Trade Summary

Net Buyer: 1,000,000 shares

Net Buy 2 txns

Insider Troim Tor Olav

Role Director

Bought 1,000,000 shs ($4.30M)

Type	Security	Shares	Price	Value
Purchase	Common Shares F1	1,000,000	$4.2995	$4.30M
holding	Common Shares F2	--	--	--

Holdings After Transaction: Common Shares — 30,385,941 shares (Indirect, By Drew Holdings Ltd.); Common Shares — 81,867 shares (Direct)

Footnotes (2)

1. F1. Drew Holdings Ltd. is wholly owned by Drew Trust, a non-discretionary trust in which the reporting person is the beneficiary.
2. F2. Includes 54,545 restricted stock units (RSUs) that vest in full on September 30, 2026 conditional upon continuing to serve as a Director of the Issuer at the date of vesting. Each RSU represents a contingent right to receive one common share.

Key Figures

Common shares purchased: 1,000,000 shares Purchase price per share: $4.2995 per share Indirect holdings after transaction: 30,385,941 shares +2 more

5 metrics

Common shares purchased 1,000,000 shares Open-market or private purchase on September 16, 2026

Purchase price per share $4.2995 per share Price paid for 1,000,000 common shares on September 16, 2026

Indirect holdings after transaction 30,385,941 shares Common shares indirectly held via Drew Holdings Ltd. after the purchase

Direct holdings after transaction 81,867 shares Common shares held directly by Tor Olav Trøim after the reported transaction

Restricted stock units (RSUs) 54,545 RSUs Included in direct holdings; vesting scheduled for September 30, 2026

Key Terms

indirect ownership, restricted stock units (RSUs), non-discretionary trust, Rule 10b5-1 trading plan

4 terms

indirect ownership financial

"reported as indirect ownership through Drew Holdings Ltd."

restricted stock units (RSUs) financial

"Includes 54,545 restricted stock units (RSUs) that vest 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.

non-discretionary trust financial

"Drew Trust, a non-discretionary trust in which the reporting person"

Rule 10b5-1 trading plan regulatory

"The filing’s Rule 10b5-1 checkbox is not marked as affirming"

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

FAQ

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

What insider transaction did BORR director Tor Olav Trøim report on this Form 4?

He reported that an affiliated entity, Drew Holdings Ltd., purchased 1,000,000 Borr Drilling common shares on September 16, 2026 at $4.2995 per share, classified as an indirect open‑market or private transaction purchase.

How many BORR shares does Tor Olav Trøim indirectly own after this transaction?

After the reported purchase, Tor Olav Trøim is reported as indirectly owning 30,385,941 common shares of Borr Drilling through Drew Holdings Ltd., which is wholly owned by Drew Trust, a non‑discretionary trust where he is the beneficiary.

What are Tor Olav Trøim’s direct share holdings in BORR after the Form 4?

The filing shows 81,867 common shares held directly after the transaction. This amount includes 54,545 restricted stock units (RSUs) that each represent a contingent right to receive one common share, subject to vesting conditions.

When do Tor Olav Trøim’s BORR RSUs vest and under what condition?

The 54,545 restricted stock units (RSUs) vest in full on September 30, 2026, provided that Tor Olav Trøim continues to serve as a Director of Borr Drilling on the vesting date. Each RSU converts into one common share upon vesting.

Were the reported BORR share purchases made under a Rule 10b5-1 trading plan?

The filing’s Rule 10b5‑1 checkbox is not marked as affirming a trading plan. No footnote indicates use of a Rule 10b5‑1 trading plan, so the transaction is not reported as being executed pursuant to such a pre‑arranged plan.

Who actually holds the indirectly owned BORR shares associated with Tor Olav Trøim?

The indirectly owned shares are held by Drew Holdings Ltd., which is wholly owned by Drew Trust, described as a non‑discretionary trust in which Tor Olav Trøim is the beneficiary, according to the footnote in the Form 4.

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

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Available on EDGAR 09/17/2026 - 08:52 AM Accepted by SEC EDGAR 09/17/2026 - 08:51 AM Learn about SEC filing dates

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^*

Troim Tor Olav

(Last) (First) (Middle)

C/O BORR DRILLING LIMITED

2ND FLOOR 9 PAR-LA-VILLE ROAD

(Street)

HAMILTON D0 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)
09/16/2026

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)
			Code	V	Amount	(A) or (D)	Price
Common Shares	09/16/2026	09/17/2026	P	V	1,000,000	A	$4.2995	30,385,941	I	By Drew Holdings Ltd.(1)
Common Shares								81,867(2)	D

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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Drew Holdings Ltd. is wholly owned by Drew Trust, a non-discretionary trust in which the reporting person is the beneficiary.

2. Includes 54,545 restricted stock units (RSUs) that vest in full on September 30, 2026 conditional upon continuing to serve as a Director of the Issuer at the date of vesting. Each RSU represents a contingent right to receive one common share.

Remarks:

	/s/ Temi Bankole as attorney-in-fact	09/17/2026
	** 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)