Stefan Demmerle

CIK: 0001559086

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)14 (58.3%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)6 (25.0%)

Compensation grants

Other (G, F, J, C, D, …)4 (16.7%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

BWA

BORGWARNER INC

Officer

Discretionary Trading P&L

Holdings

Transaction History (24 total)

BWA
BORGWARNER INC
Aug 17, 2026
Sale(S)
Direct
1K shares at avg. $70.00$70K
BWA
BORGWARNER INC
May 13, 2026
Sale(S)
Direct
5K shares at avg. $65.00$325K
BWA
BORGWARNER INC
May 11, 2026
Sale(S)
Direct
5K shares at avg. $62.00$310K
BWA
BORGWARNER INC
May 8, 2026
Sale(S)
Direct
20K shares at avg. $59.26$1.2M
BWA
BORGWARNER INC
Mar 10, 2026
Sale(S)
Direct
2.5K shares at avg. $53.03$133K
BWA
BORGWARNER INC
Feb 28, 2026
Award(A)
Direct
953 shares-
BWA
BORGWARNER INC
Feb 28, 2026
Tax Payment(F)
Direct
13K shares at avg. $57.57$747K
BWA
BORGWARNER INC
Feb 4, 2026
Award(A)
Direct
55.7K shares-
BWA
BORGWARNER INC
Feb 4, 2026
Tax Payment(F)
Direct
24.4K shares at avg. $48.57$1.2M
BWA
BORGWARNER INC
Feb 3, 2026
Award(A)
Direct
22.6K shares-
BWA
BORGWARNER INC
Nov 12, 2025
Sale(S)
Direct
5K shares at avg. $46.00$230K
BWA
BORGWARNER INC
Nov 11, 2025
Sale(S)
Direct
15K shares at avg. $45.52$683K
BWA
BORGWARNER INC
Sep 5, 2025
Sale(S)
Direct
5K shares at avg. $44.00$220K
BWA
BORGWARNER INC
Aug 13, 2025
Sale(S)
Direct
5K shares at avg. $40.50$203K
BWA
BORGWARNER INC
Aug 12, 2025
Sale(S)
Direct
5K shares at avg. $40.04$200K
BWA
BORGWARNER INC
Aug 12, 2025
Sale(S)
Direct
10K shares at avg. $38.95$390K
BWA
BORGWARNER INC
Aug 4, 2025
Sale(S)
Direct
20K shares at avg. $38.17$763K
BWA
BORGWARNER INC
Feb 28, 2025
Tax Payment(F)
Direct
5.3K shares at avg. $29.61$157K
BWA
BORGWARNER INC
Feb 28, 2025
Tax Payment(F)
Direct
5.8K shares at avg. $29.61$170K
BWA
BORGWARNER INC
Feb 5, 2025
Award(A)
Direct
38.2K shares at avg. $31.33$1.2M
BWA
BORGWARNER INC
Feb 4, 2025
Award(A)
Direct
30.2K shares-
BWA
BORGWARNER INC
Feb 4, 2025
Award(A)
Direct
32.9K shares-
BWA
BORGWARNER INC
Nov 27, 2024
Sale(S)
Direct
20.5K shares at avg. $34.28$704K
BWA
BORGWARNER INC
Nov 14, 2024
Sale(S)
Direct
21.5K shares at avg. $34.79$748K

		Type	Shares	Price		Ownership
Aug 17, 2026	BWA BORGWARNER INC	Sale(S)	1,000	$70.00	$70,000	Direct
May 13, 2026	BWA BORGWARNER INC	Sale(S)	5,000	$65.00	$325,000	Direct
May 11, 2026	BWA BORGWARNER INC	Sale(S)	5,000	$62.00	$310,000	Direct
May 8, 2026	BWA BORGWARNER INC	Sale(S)	20,000	$59.26	$1,185,150	Direct
Mar 10, 2026	BWA BORGWARNER INC	Sale(S)	2,500	$53.03	$132,575	Direct
Feb 28, 2026	BWA BORGWARNER INC	Award(A)	953	-	$0	Direct
Feb 28, 2026	BWA BORGWARNER INC	Tax Payment(F)	12,972	$57.57	$746,798	Direct
Feb 4, 2026	BWA BORGWARNER INC	Award(A)	55,689	-	$0	Direct
Feb 4, 2026	BWA BORGWARNER INC	Tax Payment(F)	24,401	$48.57	$1,185,157	Direct
Feb 3, 2026	BWA BORGWARNER INC	Award(A)	22,610	-	$0	Direct
Nov 12, 2025	BWA BORGWARNER INC	Sale(S)	5,000	$46.00	$230,000	Direct
Nov 11, 2025	BWA BORGWARNER INC	Sale(S)	15,000	$45.52	$682,751	Direct
Sep 5, 2025	BWA BORGWARNER INC	Sale(S)	5,000	$44.00	$220,006	Direct
Aug 13, 2025	BWA BORGWARNER INC	Sale(S)	5,000	$40.50	$202,500	Direct
Aug 12, 2025	BWA BORGWARNER INC	Sale(S)	5,000	$40.04	$200,219	Direct
Aug 12, 2025	BWA BORGWARNER INC	Sale(S)	10,000	$38.95	$389,500	Direct
Aug 4, 2025	BWA BORGWARNER INC	Sale(S)	20,000	$38.17	$763,384	Direct
Feb 28, 2025	BWA BORGWARNER INC	Tax Payment(F)	5,319	$29.61	$157,496	Direct
Feb 28, 2025	BWA BORGWARNER INC	Tax Payment(F)	5,758	$29.61	$170,494	Direct
Feb 5, 2025	BWA BORGWARNER INC	Award(A)	38,163	$31.33	$1,195,647	Direct
Feb 4, 2025	BWA BORGWARNER INC	Award(A)	30,214	-	$0	Direct
Feb 4, 2025	BWA BORGWARNER INC	Award(A)	32,910	-	-	Direct
Nov 27, 2024	BWA BORGWARNER INC	Sale(S)	20,544	$34.28	$704,150	Direct
Nov 14, 2024	BWA BORGWARNER INC	Sale(S)	21,500	$34.79	$748,077	Direct

1-24 of 24 transactions

About Demmerle Stefan

Demmerle Stefan (SEC CIK 0001559086) files insider reports with the SEC as Vice President of BORGWARNER INC (BWA).

Signal8 holds 18 ownership filings by Demmerle Stefan, all Form 4s, filed between Nov 18, 2024 and Aug 18, 2026. Those filings report 24 transactions, from Nov 14, 2024 to Aug 17, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Demmerle Stefan's filings is in AUBURN HILLS, MI.

Recent filings by Demmerle Stefan

Aug 17, 2026: Open-market sale of BWA shares (Form 4, code S).
May 13, 2026: Open-market sale of BWA shares (Form 4, code S).
May 11, 2026: Open-market sale of BWA shares (Form 4, code S).
May 8, 2026: Open-market sale of BWA shares (Form 4, code S).
Mar 10, 2026: Open-market sale of BWA shares (Form 4, code S).

Other insiders filing for BORGWARNER INC (BWA)

Hanley Michael S, Director
CALAWAY TONIT M, EVP, CAO, Gen Counsel & Sec
Kalathur Rajesh, Director
Kulikowski Amy B., VP & Chief Accounting Officer
McKenzie Isabelle, Vice President
McAlmont Shaun, Director

How to read Form 4 transaction codes