BorgWarner (NYSE: BWA) VP Stefan Demmerle sells 5,000 shares in open-market trade

Rhea-AI Filing Summary

BorgWarner Inc. Vice President Stefan Demmerle reported an open-market sale of Common Stock. On May 13, 2026, he sold 5,000 shares at $65.00 per share. After this transaction, he directly holds 203,746 shares of BorgWarner common stock.

Insider Trade Summary

Net Seller: 5,000 shares ($325,000)

Net Sell 1 txn

Insider Demmerle Stefan

Role Vice President

Sold 5,000 shs ($325K)

Type	Security	Shares	Price	Value
Sale	Common Stock	5,000	$65.00	$325K

Holdings After Transaction: Common Stock — 203,746 shares (Direct, null)

Footnotes (1)

Key Figures

Shares sold: 5,000 shares Sale price: $65.00 per share Post-transaction holdings: 203,746 shares +1 more

4 metrics

Shares sold 5,000 shares Open-market sale of BorgWarner Common Stock

Sale price $65.00 per share Price for the 5,000-share open-market sale

Post-transaction holdings 203,746 shares Direct ownership after the sale

Transaction date May 13, 2026 Date of the reported insider sale

Key Terms

Common Stock, open-market sale, Form 4, transaction code S

4 terms

Common Stock financial

"He sold 5,000 shares of BorgWarner Common Stock in an open-market sale."

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

open-market sale financial

"He sold 5,000 shares at $65.00 per share in an open-market sale."

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

Form 4 regulatory

"The transaction was reported on Form 4 filed with regulators."

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

transaction code S regulatory

"The Form 4 lists transaction code S, indicating a sale."

Form 4 Insider Transactions: What Each Field Means →

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^*

Demmerle Stefan

(Last) (First) (Middle)

3850 HAMLIN ROAD

(Street)

AUBURN HILLS MICHIGAN 48326

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
BORGWARNER INC [ BWA ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/13/2026

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 Stock	05/13/2026		S		5,000	D	$65	203,746	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:

	Miyuki P. Oshima as attorney-in-fact for Stefan Demmerle	05/14/2026
	** 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)

FAQ

What insider transaction did BorgWarner (BWA) report for Stefan Demmerle?

BorgWarner reported that Vice President Stefan Demmerle completed an open-market sale of company stock. He sold 5,000 shares of BorgWarner Common Stock in a single transaction disclosed on Form 4 filed with regulators.

At what price did BorgWarner (BWA) insider Stefan Demmerle sell shares?

Stefan Demmerle sold BorgWarner Common Stock at an average price of $65.00 per share. This price applies to the 5,000 shares reported in the Form 4 transaction dated May 13, 2026, reflecting an open-market sale.

How many BorgWarner (BWA) shares does Stefan Demmerle own after the sale?

After the reported sale, Stefan Demmerle directly holds 203,746 shares of BorgWarner Common Stock. This post-transaction holding figure is disclosed in the Form 4 and reflects his remaining direct ownership following the 5,000-share open-market sale.

Was the BorgWarner (BWA) insider trade by Stefan Demmerle a buy or a sell?

The reported transaction by Stefan Demmerle was a sale of BorgWarner Common Stock. The Form 4 lists transaction code S, describing an open-market sale of 5,000 shares at $65.00 per share on May 13, 2026.

What type of security did BorgWarner (BWA) insider Stefan Demmerle trade?

Stefan Demmerle traded Common Stock of BorgWarner Inc. The Form 4 specifies a non-derivative transaction involving 5,000 shares of BorgWarner Common Stock, executed as an open-market sale with direct ownership reported after the transaction.