Brunswick Corporation
Ownership
Ownership Structure
Who owns Brunswick Corporation (BC)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 98.6% of the shares are freely tradable; institutional investors hold 106.3%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 10.41 | 6,748,107 | +9.3 | 06/30/2026 |
| Massachusetts Financial Services Company | 6.38 | 4,136,460 | +4.6 | 06/30/2026 |
| Vanguard Portfolio Management, LLC | 5.33 | 3,456,691 | +1.1 | 06/30/2026 |
| American Century Companies Inc | 4.72 | 3,055,802 | +0.3 | 06/30/2026 |
| Vanguard Capital Management, LLC | 4.53 | 2,932,941 | +0.4 | 06/30/2026 |
| Baillie Gifford & Co Limited. | 4.23 | 2,740,077 | -5.2 | 06/30/2026 |
| Dimensional Fund Advisors, Inc. | 4.18 | 2,709,074 | -7.6 | 06/30/2026 |
| AQR Capital Management LLC | 3.34 | 2,163,477 | +8.0 | 06/30/2026 |
| State Street Corp | 3.28 | 2,126,703 | +2.6 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| iShares Core S&P Mid-Cap ETF | 3.56 | 2,309,617 | +0.0 | 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 |
|---|---|---|---|---|---|
| Whisler J Steven | Director | 100,003 | 7,530,226 $ | Jul 31, 2026 | direct |
| Preisser Brenna | E.V.P. & President Boat Group | 94,727 | 7,132,943 $ | Sep 21, 2026 | direct |
| Gwillim Ryan M | E.V.P. , CFO, CSO | 78,282 | 5,894,635 $ | Sep 21, 2026 | direct |
| Wood Roger | Director | 68,610 | 5,166,333 $ | Jul 31, 2026 | direct |
| Buelow John G | EVP & President Mercury Marine | 52,839 | 3,978,777 $ | Sep 21, 2026 | direct |
| Everitt David C | Director | 39,908 | 3,005,072 $ | Jul 31, 2026 | direct |
| Singer David V | Director | 37,546 | 2,827,214 $ | Jul 31, 2026 | direct |
| Denari Aine | EVP, Pres. Navico Group, CTO | 37,393 | 2,815,693 $ | Aug 19, 2026 | direct |
| Mcclanathan Joseph W | Director | 28,238 | 2,126,321 $ | Jul 31, 2026 | direct |
| Cooper Nancy E | Director | 28,184 | 2,122,255 $ | Aug 3, 2026 | direct |
| Flaherty Lauren Patricia | Director | 18,247 | 1,373,999 $ | Jul 31, 2026 | direct |
| Fils-Aime Reginald | Director | 12,052 | 907,516 $ | Jul 31, 2026 | direct |
| Wright MaryAnn | Director | 11,764 | 885,829 $ | Jul 31, 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 |
|---|---|---|---|---|---|---|
| Sep 21, 2026 | Buelow John G | EVP & President Mercury Marine | Other | 25,760 | 66.00 | 1,700,160 |
| Sep 21, 2026 | Gwillim Ryan M | E.V.P. , CFO, CSO | Other | 45,450 | 66.00 | 2,999,700 |
| Sep 21, 2026 | Preisser Brenna | E.V.P. & President Boat Group | Other | 25,760 | 66.00 | 1,700,160 |
| Aug 19, 2026 | Denari Aine | EVP, Pres. Navico Group, CTO | Other | 301 | 81.61 | 24,565 |
| Aug 19, 2026 | Preisser Brenna | E.V.P. & President Boat Group | Other | 301 | 81.61 | 24,565 |
| Aug 3, 2026 | Cooper Nancy E | Director | Sell | 206 | 78.45 | 16,161 |
| Jul 31, 2026 | Flaherty Lauren Patricia | Director | Other | 562 | 79.00 | 44,398 |
| Jul 31, 2026 | Fils-Aime Reginald | Director | Other | 601 | 79.00 | 47,479 |
| Jul 31, 2026 | Wood Roger | Director | Other | 585 | 79.00 | 46,215 |
| Jul 31, 2026 | Everitt David C | Director | Other | 740 | 79.00 | 58,460 |
| Jul 31, 2026 | Singer David V | Director | Other | 1,046 | 79.00 | 82,634 |
| Jul 31, 2026 | Wright MaryAnn | Director | Other | 581 | 79.00 | 45,899 |
| Jul 31, 2026 | Mcclanathan Joseph W | Director | Other | 562 | 79.00 | 44,398 |
| Jul 31, 2026 | Whisler J Steven | Director | Other | 1,026 | 79.00 | 81,054 |
| Jul 31, 2026 | Cooper Nancy E | Director | Other | 589 | 79.00 | 46,531 |
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: October 30, 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.