Latest filingSep 01, 2026Most recent Form 4
BWA
BORGWARNER INC
NYSEConsumer DiscretionaryMotor Vehicle Parts & Accessories
Insider activity for last month from 08/04 to 09/04. Counts use processed Form 4 rows. Purchase and sale metrics use codes P and S; totals remain unknown when any matching value is missing. Rows without a usable transaction date cannot be assigned to a rolling period and are excluded.
Total buying$50.0M1 buys
Total selling$446M7 sells
Net open-market-$396M7 insiders
Open-market mix
Buy vs sell distribution by transaction countInsider activity report
Monthly open-market purchase and sale counts Buys Sells
Transaction codes
By Form 4 transaction code in selected period8transactions
- S · Open-market sells · dominant7 · 88%
- P · Open-market buys1 · 13%
Activity by reported role
A joint filing can contribute to multiple roles15transactions
- CAO · dominant3 · 20%
- Director3 · 20%
- VP3 · 20%
- EVP2 · 13%
- GC2 · 13%
- SEC2 · 13%
Distinct insiders active
Reporting-owner CIKs by month · peak Aug 2026 (7)Aug 2026Sep 2026
Reported Holdings After
Separated by insider, security, and ownership typeCalaway Tonit MCommon Stock · Direct
95,831Aug 17, 2026
McAlmont ShaunCommon Stock · Direct
18,070Aug 17, 2026
McKenzie IsabelleCommon Stock · Direct
53,328Aug 17, 2026
Demmerle StefanCommon Stock · Direct
202,746Aug 17, 2026
Kulikowski Amy B.Common Stock · Direct
9,725Aug 18, 2026
Kalathur RajeshCommon Stock · Direct
7,407Aug 19, 2026
Hanley Michael SCommon Stock · Direct
34,313Aug 28, 2026
These are reported post-transaction holdings, not company-wide ownership percentages. Securities, indirect vehicles, and amendments are kept separate.
Filing activity heatmap
Each cell is one day · intensity = transactions · buys green, sells redAug 04 → Sep 04
LessMore
Top insiders
By absolute net value across the selected period- CM-$3.1M
- KR+$500.7k
- MS-$485.5k
- HS-$327.6k
- MI-$316.8k
Filing detail checks
Secondary metrics for the selected periodFiling-only signals
Deterministic matches in the selected period
BWA transaction history
Filters apply within this company and selected period by default| Ticker | Insider | Role | Type | Shares | Value | Code | Signals | 90d return | Filed | Trans date |
|---|---|---|---|---|---|---|---|---|---|---|
| BWA | Hanley Michael S | DIR | sale | 5.00k | -$32.7M | S | 0.0% | 09/01 | 08/28 | |
| BWA | Kalathur Rajesh | DIR | buy | 7.40k | $50.0M | P | −1.9% | 08/20 | 08/19 | |
| BWA | Kulikowski Amy B. | VPCAO | sale | 2.90k | -$19.8M | S | −1.9% | 08/20 | 08/18 | |
| BWA | Demmerle Stefan | VP | sale | 1.00k | -$7.00M | S | −6.5% | 08/18 | 08/17 | |
| BWA | CALAWAY TONIT M | EVPCAOGC+1 | sale | 26.6k | -$184M | S | −6.5% | 08/18 | 08/17 | |
| BWA | CALAWAY TONIT M | EVPCAOGC+1 | sale | 17.3k | -$121M | S | −6.5% | 08/18 | 08/17 | |
| BWA | McKenzie Isabelle | VP | sale | 4.50k | -$31.6M | S | −6.5% | 08/18 | 08/17 | |
| BWA | McAlmont Shaun | DIR | sale | 7.00k | -$48.5M | S | −6.5% | 08/18 | 08/17 |
BORGWARNER INC Insider Activity FAQ
SEC Form 4 contextWho recently reported transactions at BORGWARNER INC?
Hanley Michael S, Kalathur Rajesh, Kulikowski Amy B., Demmerle Stefan, CALAWAY TONIT M, McKenzie Isabelle, McAlmont Shaun.
When was the latest reported open-market purchase?
Kalathur Rajesh reported a buy on Aug 19, 2026 valued at $50.0M. Read the SEC filing.
When was the latest reported open-market sale?
Hanley Michael S reported a sale on Aug 28, 2026 valued at $32.7M. Read the SEC filing.
What is the recent purchase and sale balance?
Net open-market selling in the selected period was $3,962,711.47. Sales can occur for many non-investment reasons.
Where can I see the original SEC filing?
Every transaction row and latest-activity fact links to its original SEC filing.
What do these Form 4 transaction codes mean?
P and S generally describe open-market or private purchases and sales. A, D, F, M, X, G, J, and V describe awards, issuer dispositions, tax withholding, exercises, gifts, other transactions, and voluntary early reports; review each filing and its footnotes for context.