Sealed Air Corp
SEEDelisted Apr 9, 2026- Industry
- Plastic Material, Synth Resin/Rubber, Cellulos (No Glass)
- SEC CIK
- 0001012100
Sealed Air Corp was delisted on Apr 9, 2026; its insiders filed their last Form 4 on Apr 9, 2026; 423 institutions reported holding it in 13F filings for Q1 2026, worth $6.45B in total; superinvestors Soros Fund Management and Harris Associates (Oakmark) held it.
Holders of 5% or more of SEE
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Sealed Air Corp, largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| BlackRock, Inc. | 13G/A | 11.20%16.6M shares | +1.00 ppfrom 10.20% | Feb 7, 20252 filings | Apr 29, 2026 | SEC |
| Vanguard Portfolio Management LLC | 13G | 5.77%8.51M shares | New | Apr 29, 20261 filing | Apr 29, 2026 | SEC |
| Vanguard Capital Management LLC | 13G | 5.24%7.73M shares | New | Apr 30, 20261 filing | Apr 30, 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
33 Schedule 13D and 13G filings on Sealed Air Corp, newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Apr 30, 20261:11 PM ET | Vanguard Capital Management LLC | 13G | 5.24%7.73M shares | New | Mar 31, 2026 | SEC |
| Apr 29, 20264:11 PM ET | BlackRock, Inc. | 13G/A | 11.20%16.6M shares | +1.00 ppfrom 10.20% | Mar 31, 2026 | SEC |
| Apr 29, 20264:08 PM ET | BlackRock Portfolio Management LLC | 13G/A | 0.10%125.2K shares | −9.20 ppfrom 9.30%Below 5% | Mar 31, 2026 | SEC |
| Apr 29, 20263:14 PM ET | Vanguard Portfolio Management LLC | 13G | 5.77%8.51M shares | New | Mar 31, 2026 | SEC |
| Mar 27, 202612:59 PM ET | Vanguard Group Inc | 13G/A | 0.00%0 shares | −10.88 ppfrom 10.88%Below 5% | Mar 13, 2026 | SEC |
| Feb 17, 202610:28 AM ET | T. Rowe Price Investment Management, Inc. | 13G/A | 0.00%140 shares | −5.70 ppfrom 5.70%Below 5% | Dec 31, 2025 | SEC |
| Jan 30, 20262:46 PM ET | Vanguard Group Inc | 13G/A | 10.88%16.0M shares | −1.70 ppfrom 12.58% | Dec 31, 2025 | SEC |
| Nov 18, 20254:17 PM ET | Integrated Core Strategies (US) LLCand 3 others | 13G/A | 3.70%5.40M shares | −1.40 ppfrom 5.10%Below 5% | Nov 11, 2025 | SEC |
| Nov 14, 202512:18 PM ET | T. Rowe Price Investment Management, Inc. | 13G/A | 5.70%8.45M shares | – | Sep 30, 2025 | SEC |
| Nov 7, 20254:14 PM ET | Integrated Core Strategies (US) LLCand 3 others | 13G | 5.10%7.54M shares | New | Nov 3, 2025 | SEC |
| Apr 15, 20255:23 PM ET | BlackRock Portfolio Management LLC | 13G | 9.30%13.6M shares | New | Mar 31, 2025 | SEC |
| Feb 7, 20256:04 AM ET | BlackRock, Inc. | 13G/A | 10.20%14.8M shares | – | Jan 31, 2025 | SEC |
| Jan 31, 20259:56 AM ET | Vanguard Group Inc | 13G/A | 12.58%18.3M shares | – | Dec 31, 2024 | SEC |
| Nov 14, 2024 | T. Rowe Price Investment Management, Inc. | 13G/AOld format | – | – | – | SEC |
| Feb 14, 2024 | T. Rowe Price Investment Management, Inc. | 13GOld format | – | – | – | SEC |
| Feb 13, 2024 | Vanguard Group Inc | 13G/AOld format | – | – | – | SEC |
| Jan 19, 20242:40 PM ET | BlackRock Inc. | 13G/AOld format | – | – | – | SEC |
| Feb 14, 2023 | T. Rowe Price Investment Management, Inc. | 13GOld format | – | New | – | SEC |
| Feb 9, 2023 | Vanguard Group Inc | 13G/AOld format | – | – | – | SEC |
| Jan 27, 20234:30 PM ET | BlackRock Inc. | 13G/AOld format | – | – | – | SEC |
| Jan 23, 20233:52 PM ET | BlackRock Inc. | 13G/AOld format | – | – | – | SEC |
| Aug 10, 2022 | Price T Rowe Associates Inc | 13G/AOld format | – | – | – | SEC |
| Feb 14, 2022 | Price T Rowe Associates Inc | 13G/AOld format | – | – | – | SEC |
| Feb 10, 2022 | Janus Henderson Group PLC | 13G/AOld format | – | – | – | SEC |
| Feb 10, 2022 | Vanguard Group Inc | 13G/AOld format | – | – | – | SEC |
| Jan 27, 20221:59 PM ET | BlackRock Inc. | 13G/AOld format | – | – | – | SEC |
| Jan 25, 20226:45 PM ET | BlackRock Inc. | 13G/AOld format | – | – | – | SEC |
| Aug 9, 20213:18 PM ET | BlackRock Inc. | 13G/AOld format | – | – | – | SEC |
| Feb 16, 2021 | Rivulet Capital, LLC | 13G/AOld format | – | – | – | SEC |
| Feb 16, 2021 | Price T Rowe Associates Inc | 13G/AOld format | – | – | – | SEC |
| Feb 11, 2021 | Janus Henderson Group PLC | 13G/AOld format | – | – | – | SEC |
| Feb 10, 2021 | Vanguard Group Inc | 13G/AOld format | – | – | – | SEC |
| Feb 1, 20218:30 AM ET | BlackRock Inc. | 13G/AOld format | – | – | – | SEC |
Form 144: proposed insider sales
1 notice from officers, directors and other affiliates planning to sell Sealed Air Corp shares, newest first.
| Filed (ET) | Seller | Shares to sell | Market value | Planned sale | Broker | Filing |
|---|---|---|---|---|---|---|
| Aug 13, 20242:40 PM ET | Thomsen JannickFormer officer | 8.36K | $273.9K | Aug 13, 2024 | Fidelity Brokerage Services LLC | SEC |