BorgWarner Inc
Ownership
Ownership Structure
Who owns BorgWarner Inc (BWA)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 99.0% of the shares are freely tradable; institutional investors hold 107.6%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 13.27 | 27,024,218 | -18.9 | 03/31/2026 |
| Vanguard Portfolio Management, LLC | 6.64 | 13,518,484 | +0.0 | 03/31/2026 |
| Dimensional Fund Advisors, Inc. | 5.79 | 11,796,622 | -1.1 | 06/30/2026 |
| Vanguard Capital Management, LLC | 4.56 | 9,287,383 | +0.0 | 03/31/2026 |
| AQR Capital Management LLC | 3.55 | 7,224,564 | -21.7 | 03/31/2026 |
| State Street Corp | 3.42 | 6,975,144 | -0.9 | 03/31/2026 |
| LSV Asset Management | 3.23 | 6,576,464 | +1.9 | 06/30/2026 |
| The Goldman Sachs Group Inc | 2.52 | 5,134,323 | +113.1 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| iShares Core S&P Mid-Cap ETF | 3.53 | 7,183,875 | +0.0 | 08/31/2026 |
| Vanguard MStar Total Stk Mkt Idx Invest | 3.21 | 6,530,013 | +0.3 | 07/31/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Demmerle Stefan | Vice President | 202,746 | 12,833,822 $ | Aug 17, 2026 | direct |
| Calaway Tonit M | EVP, CAO, Gen Counsel & Sec | 73,831 | 4,673,502 $ | Aug 24, 2026 | direct |
| McKenzie Isabelle | Vice President | 53,328 | 3,375,662 $ | Aug 17, 2026 | direct |
| Hanley Michael S | Director | 34,313 | 2,172,013 $ | Aug 28, 2026 | direct |
| McAlmont Shaun | Director | 18,070 | 1,143,831 $ | Aug 17, 2026 | direct |
| Kulikowski Amy B. | VP & Chief Accounting Officer | 9,725 | 615,593 $ | Aug 18, 2026 | direct |
| Kalathur Rajesh | Director | 7,407 | 468,863 $ | Aug 19, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Aug 28, 2026 | Hanley Michael S | Director | Sell | 5,000 | 65.51 | 327,550 |
| Aug 24, 2026 | Calaway Tonit M | EVP, CAO, Gen Counsel & Sec | Sell | 22,000 | 66.26 | 1,457,667 |
| Aug 19, 2026 | Kalathur Rajesh | Director | Buy | 7,407 | 67.59 | 500,664 |
| Aug 18, 2026 | Kulikowski Amy B. | VP & Chief Accounting Officer | Sell | 2,900 | 68.60 | 198,940 |
| Aug 17, 2026 | Demmerle Stefan | Vice President | Sell | 1,000 | 70.00 | 70,000 |
| Aug 17, 2026 | Calaway Tonit M | EVP, CAO, Gen Counsel & Sec | Sell | 26,624 | 69.44 | 1,848,771 |
| Aug 17, 2026 | Calaway Tonit M | EVP, CAO, Gen Counsel & Sec | Sell | 17,376 | 69.97 | 1,215,799 |
| Aug 17, 2026 | McKenzie Isabelle | Vice President | Sell | 4,500 | 70.39 | 316,769 |
| Aug 17, 2026 | McAlmont Shaun | Director | Sell | 7,000 | 69.36 | 485,548 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: September 18, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.