Smurfit WestRock plc
Ownership
Ownership Structure
Who owns Smurfit WestRock plc (SW)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 99.3% of the shares are freely tradable; institutional investors hold 101.9%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 8.67 | 45,496,899 | +1.5 | 06/30/2026 |
| Capital Research Global Investors | 8.13 | 42,634,328 | +9.4 | 06/30/2026 |
| Vanguard Capital Management, LLC | 6.53 | 34,245,410 | +0.8 | 06/30/2026 |
| State Street Corp | 5.35 | 28,063,403 | +11.1 | 06/30/2026 |
| Nuveen, LLC | 4.73 | 24,812,775 | +0.9 | 06/30/2026 |
| Vanguard Portfolio Management, LLC | 4.64 | 24,357,234 | +0.2 | 06/30/2026 |
| Capital World Investors | 2.95 | 15,472,417 | +24.1 | 06/30/2026 |
| Causeway Capital Management LLC | 2.87 | 15,039,041 | -3.4 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| American Funds Income Fd of Amer A | 3.36 | 17,625,270 | +13.9 | 09/30/2026 |
| Vanguard MStar Total Stk Mkt Idx Invest | 3.16 | 16,596,272 | -0.4 | 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 |
|---|---|---|---|---|---|
| Smurfit Anthony P J | President and CEO | 1,728,994 | 74,519,641 $ | Sep 10, 2026 | direct |
| Mayer Saverio | See remarks | 241,684 | 10,416,580 $ | Sep 10, 2026 | direct |
| Bowles Ken | Executive VP and CFO | 174,487 | 7,520,390 $ | Sep 10, 2026 | direct |
| Sellier Laurent | See remarks | 139,015 | 5,991,547 $ | Sep 10, 2026 | direct |
| Henao Alvaro | See remarks | 72,871 | 3,140,740 $ | Sep 10, 2026 | direct |
| Wilson Alan D | Director | 67,580 | 2,912,707 $ | Sep 10, 2026 | direct |
| Page Irene | Chief Accounting Officer | 62,787 | 2,706,120 $ | Sep 10, 2026 | direct |
| Finan Irial | Director | 58,973 | 2,541,736 $ | Sep 10, 2026 | direct |
| Bernlohr Timothy J | Director | 57,619 | 2,483,379 $ | Sep 10, 2026 | direct |
| Arnold Colleen F. | Director | 36,623 | 1,578,440 $ | Sep 10, 2026 | direct |
| Harrison Suzan F. | Director | 28,054 | 1,209,127 $ | Sep 10, 2026 | direct |
| Garren Ben | See remarks | 14,996 | 646,328 $ | Sep 10, 2026 | direct |
| Rasmussen Jorgen Buhl | Director | 14,790 | 637,449 $ | Sep 10, 2026 | direct |
| Fairweather Carol | Director | 11,644 | 501,856 $ | Sep 10, 2026 | direct |
| Hietala Kaisa | Director | 10,115 | 435,957 $ | Sep 10, 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 10, 2026 | Smurfit Anthony P J | President and CEO | Other | 486 | 0.00 | – |
| Sep 10, 2026 | Page Irene | Chief Accounting Officer | Other | 23 | 0.00 | – |
| Sep 10, 2026 | Mayer Saverio | See remarks | Other | 119 | 0.00 | – |
| Sep 10, 2026 | Henao Alvaro | See remarks | Other | 35 | 0.00 | – |
| Sep 10, 2026 | Sellier Laurent | See remarks | Other | 140 | 0.00 | – |
| Sep 10, 2026 | Garren Ben | See remarks | Other | 56 | 0.00 | – |
| Sep 10, 2026 | Bowles Ken | Executive VP and CFO | Other | 140 | 0.00 | – |
| Sep 10, 2026 | Fairweather Carol | Director | Other | 48 | 0.00 | – |
| Sep 10, 2026 | FergusonMchugh MaryLynn | Director | Other | 48 | 0.00 | – |
| Sep 10, 2026 | Wilson Alan D | Director | Other | 674 | 0.00 | – |
| Sep 10, 2026 | Finan Irial | Director | Other | 75 | 0.00 | – |
| Sep 10, 2026 | Hietala Kaisa | Director | Other | 48 | 0.00 | – |
| Sep 10, 2026 | Harrison Suzan F. | Director | Other | 48 | 0.00 | – |
| Sep 10, 2026 | Arnold Colleen F. | Director | Other | 344 | 0.00 | – |
| Sep 10, 2026 | Bernlohr Timothy J | Director | Other | 48 | 0.00 | – |
| Sep 10, 2026 | Brown Carole Lynnette | Director | Other | 48 | 0.00 | – |
| Sep 10, 2026 | Rasmussen Jorgen Buhl | Director | Other | 48 | 0.00 | – |
| Aug 14, 2026 | Bowles Ken | Executive VP and Group CFO | Other | 234 | 0.00 | – |
| Aug 14, 2026 | Smurfit Anthony P J | President and Group CEO | Other | 784 | 0.00 | – |
| Aug 14, 2026 | Page Irene | Chief Accounting Officer | Other | 29 | 0.00 | – |
| Aug 14, 2026 | Mayer Saverio | See remarks | Other | 195 | 0.00 | – |
| Aug 14, 2026 | Henao Alvaro | See remarks | Other | 67 | 0.00 | – |
| Aug 14, 2026 | Garren Ben | See remarks | Other | 71 | 0.00 | – |
| Aug 14, 2026 | Sellier Laurent | See remarks | Other | 234 | 0.00 | – |
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.