Smurfit Westrock plc
SW- Exchange
- NYSE
- Industry
- Paperboard Containers & Boxes
- SEC CIK
- 0002005951
No open-market purchases or sales by Smurfit Westrock plc insiders were filed in the last 90 days; 643 institutions reported holding it in 13F filings for Q2 2026, worth $23.3B in total; Soros Fund Management is the only superinvestor holding it.
Holders of 5% or more of SW
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Smurfit Westrock plc, largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Vanguard Capital Management LLC | 13G | 7.49%39.3M shares | New | Apr 28, 20261 filing | Apr 28, 2026 | SEC |
| Capital Research Global Investors | 13G/A | 6.90%36.1M shares | +1.60 ppfrom 5.30% | Aug 13, 20252 filings | Feb 12, 2026 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
6 Schedule 13D and 13G filings on Smurfit Westrock plc, newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Apr 28, 202612:40 PM ET | Vanguard Capital Management LLC | 13G | 7.49%39.3M shares | New | Mar 31, 2026 | SEC |
| Mar 27, 20269:19 AM ET | Vanguard Group Inc | 13G/A | 0.00%0 shares | −11.77 ppfrom 11.77%Below 5% | Mar 13, 2026 | SEC |
| Feb 12, 202610:25 AM ET | Capital Research Global Investors | 13G/A | 6.90%36.1M shares | +1.60 ppfrom 5.30% | Dec 31, 2025 | SEC |
| Oct 31, 202511:29 AM ET | Vanguard Group Inc | 13G/A | 11.77%61.5M shares | – | Sep 30, 2025 | SEC |
| Aug 13, 202511:37 AM ET | Capital Research Global Investors | 13G | 5.30%27.7M shares | New | Jun 30, 2025 | SEC |
| Feb 12, 20259:13 AM ET | Norges Bank | 13G/A | 4.70%24.6M shares | –Below 5% | Dec 31, 2024 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Smurfit Westrock plc shares.
No Form 144 notices for Smurfit Westrock plc are on file.