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 | 12.41 | 25,273,906 | -6.5 | 06/30/2026 |
| Vanguard Portfolio Management, LLC | 6.20 | 12,630,285 | -6.6 | 06/30/2026 |
| Dimensional Fund Advisors, Inc. | 5.79 | 11,796,622 | -1.1 | 06/30/2026 |
| Vanguard Capital Management, LLC | 4.55 | 9,276,681 | -0.1 | 06/30/2026 |
| State Street Corp | 3.36 | 6,834,391 | -2.0 | 06/30/2026 |
| LSV Asset Management | 3.23 | 6,576,464 | +1.9 | 06/30/2026 |
| AQR Capital Management LLC | 2.82 | 5,749,595 | -20.4 | 06/30/2026 |
| Victory Capital Management Inc. | 2.40 | 4,880,034 | +4.9 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| iShares Core S&P Mid-Cap ETF | 3.56 | 7,254,637 | +0.0 | 09/30/2026 |
| Vanguard MStar Total Stk Mkt Idx Invest | 3.16 | 6,432,178 | -1.2 | 09/30/2026 |
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 | 10,218,398 $ | Aug 17, 2026 | direct |
| Calaway Tonit M | EVP, CAO, Gen Counsel & Sec | 73,831 | 3,721,082 $ | Aug 24, 2026 | direct |
| McKenzie Isabelle | Vice President | 53,328 | 2,687,731 $ | Aug 17, 2026 | direct |
| Hanley Michael S | Director | 34,313 | 1,729,375 $ | Aug 28, 2026 | direct |
| McAlmont Shaun | Director | 18,070 | 910,728 $ | Aug 17, 2026 | direct |
| Kulikowski Amy B. | VP & Chief Accounting Officer | 9,725 | 490,140 $ | Aug 18, 2026 | direct |
| Kalathur Rajesh | Director | 7,407 | 373,313 $ | 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: November 4, 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.