Assetmark, Inc reports 90.36% decrease in ownership of SEE / Sealed Air Corporation

Sealed Air Corporation

US ˙ NYSE ˙ US81211K1007

DIESES SYMBOL IST NICHT MEHR AKTIV

Security	SEE / Sealed Air Corporation
Institution	Assetmark, Inc
Latest Disclosed Ownership	5,880 shares
Latest Disclosed Value	$ 247,254

On May 6, 2026 - Assetmark, Inc filed a 13F-HR form disclosing ownership of 5,880 shares of Sealed Air Corporation (US:SEE) valued at $247,254 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 60,967 shares of Sealed Air Corporation. This represents a change in shares of -90.36% during the quarter. The current value of the position is $0 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)

File Date	Effective Date	Form	Security	Class	ID	Reported Shares	ΔShares	ΔShares (%)	Reported Value (x1000)	ΔValue (%)	Alloc (%)
2026-05-06	2026-03-31	13F	SEALED AIR CORP	COM	81211K100	5,880	-55,087	-90.36	247	-90.22	0.0005
2026-01-23	2025-12-31	13F	SEALED AIR CORP	COM	81211K100	60,967	1,795	3.03	2,526	20.76	0.0052
2025-11-06	2025-09-30	13F	SEALED AIR CORP	COM	81211K100	59,172	331	0.56	2,092	14.58	0.0045
2025-08-04	2025-06-30	13F	SEALED AIR CORP	COM	81211K100	58,841	1,952	3.43	1,826	11.01	0.0043
2025-05-06	2025-03-31	13F	SEALED AIR CORP	COM	81211K100	56,889	-1,070	-1.85	1,644	-16.12	0.0045
2025-02-06	2024-12-31	13F	SEALED AIR CORP	COM	81211K100	57,959	2,389	4.30	1,961	-2.83	0.0053
2024-11-01	2024-09-30	13F	SEALED AIR CORP	COM	81211K100	55,570	961	1.76	2,017	6.21	0.0058
2024-08-13	2024-06-30	13F	SEALED AIR CORP	COM	81211K100	54,609	-252	-0.46	1,900	-6.91	0.0059
2024-05-07	2024-03-31	13F	SEALED AIR CORP	COM	81211K100	54,861	-11	-0.02	2,041	1.85	0.0066
2024-02-09	2023-12-31	13F	SEALED AIR CORP	COM	81211K100	54,872	-868	-1.56	2,004	9.39	0.0072
2023-10-27	2023-09-30	13F	SEALED AIR CORP	COM	81211K100	55,740	19,231	52.67	1,832	25.41	0.0073
2023-08-11	2023-06-30	13F	SEALED AIR CORP NEW COM	COM	81211K100	36,509	587	1.63	1,460	-11.46	0.0057
2023-05-05	2023-03-31	13F	SEALED AIR CORP NEW COM	COM	81211K100	35,922	9,555	36.24	1,649	25.40	0.0068
2023-02-10	2022-12-31	13F	SEALED AIR CORP	COM	81211K100	26,367	9,563	56.91	1,315	75.80	0.0057
2022-11-01	2022-09-30	13F	SEALED AIR CORP	COM	81211K100	16,804	6,254	59.28	748	22.82	0.0035
2022-08-03	2022-06-30	13F	SEALED AIR CORP NEW COM	COM	81211K100	10,550	6,027	133.25	609	100.99	0.0027
2022-05-13	2022-03-31	13F	SEALED AIR CORP NEW COM	COM	81211K100	4,523	3,530	355.49	303	352.24	0.0013
2022-02-14	2021-12-31	13F	SEALED AIR CORP NEW COM	COM	81211K100	993	751	310.33	67	415.38	0.0003
2021-11-12	2021-09-30	13F	SEALED AIR CORP NEW COM	COM	81211K100	242	72	42.35	13	30.00	0.0001
2021-08-16	2021-06-30	13F	SEALED AIR CORP NEW COM	COM	81211K100	170	170		10		0.0000
2020-05-12	2020-03-31	13F	SEALED AIR CORP NEW COM	COM	81211K100	0	-5	-100.00	0	-100.00	0.0000
2020-02-11	2019-12-31	13F	SEALED AIR CORP NEW COM	COM	81211K100	5	5		0		0.0000
2019-11-13	2019-09-30	13F	SEALED AIR CORP NEW COM	COM	81211K100	0	-31	-100.00	0	-100.00
2019-08-14	2019-06-30	13F	SEALED AIR CORP NEW COM	COM	81211K100	31	-68	-68.69	1	-80.00	0.0000
2019-05-14	2019-03-31	13F	SEALED AIR CORP NEW COM	COM	81211K100	99	0	0.00	5	66.67	0.0000
2019-02-13	2018-12-31	13F	SEALED AIR CORP NEW COM	COM	81211K100	99	-53	-34.87	3	-50.00	0.0000
2018-11-13	2018-09-30	13F	SEALED AIR CORP NEW COM	COM	81211K100	152	-502	-76.76	6	-78.57	0.0001
2018-08-01	2018-06-30	13F	SEALED AIR CORP NEW COM	COM	81211K100	654	-155	-19.16	28	-20.00	0.0003
2018-05-16	2018-03-31	13F	SEALED AIR CORP NEW COM	COM	81211K100	809	-1,841	-69.47	35	-73.28	0.0004
2018-02-13	2017-12-31	13F	SEALED AIR CORP NEW COM	COM	81211K100	2,650	-65	-2.39	131	12.93	0.0013
2017-11-08	2017-09-30	13F	SEALED AIR CORP NEW COM	COM	81211K100	2,715	-76	-2.72	116	-7.20	0.0013
2017-08-14	2017-06-30	13F	SEALED AIR CORP NEW COM	COM	81211K100	2,791	347	14.20	125	16.82	0.0016
2017-09-15	2017-03-31	13F/A-1	SEALED AIR CORP NEW COM	COM	81211K100	2,444	25	1.03	107	-2.73	0.0014
2017-05-08	2017-03-31	13F	SEALED AIR CORP NEW COM	COM	81211K100	2,444	25		107
2017-09-15	2016-12-31	13F/A-1	SEALED AIR CORP NEW COM	COM	81211K100	2,419	-20	-0.82	110	-1.79	0.0016
2017-02-14	2016-12-31	13F	SEALED AIR CORP NEW COM	COM	81211K100	2,419	-20		110
2017-09-14	2016-09-30	13F/A-1	SEALED AIR CORP NEW COM	COM	81211K100	2,439	-327	-11.82	112	-11.81	0.0017
2016-11-04	2016-09-30	13F	SEALED AIR CORP NEW COM	COM	81211K100	2,439	-327		112
2017-09-14	2016-06-30	13F/A-1	SEALED AIR CORP NEW COM	COM	81211K100	2,766	-15	-0.54	127	-5.22	0.0021
2016-08-08	2016-06-30	13F	SEALED AIR CORP NEW COM	COM	81211K100	2,766	-15		127
2017-09-14	2016-03-31	13F/A-1	SEALED AIR CORP NEW COM	COM	81211K100	2,781	33	1.20	134	8.94	0.0023
2016-05-13	2016-03-31	13F	SEALED AIR CORP NEW COM	COM	81211K100	2,781	33		134
2017-09-14	2015-12-31	13F/A-1	SEALED AIR CORP NEW COM	COM	81211K100	2,748	2,610	1,891.30	123	1,950.00	0.0023
2016-02-12	2015-12-31	13F	SEALED AIR CORP NEW COM	COM	81211K100	2,748	2,610		123
2016-01-05	2015-09-30	13F/A-1	SEALED AIR CORP NEW COM	COM	81211K100	138	-13	-8.61	6	-25.00	0.0001
2015-11-10	2015-09-30	13F	SEALED AIR CORP NEW COM	COM	81211K100	138			6
2015-08-13	2015-06-30	13F	SEALED AIR CORP NEW COM	COM	81211K100	151	151		8		0.0002

Legend

Shares: The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value: The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price: The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class: This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred

Allocation (%): The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation: The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%): The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis: The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss: This is the market value of the position as of the effective date minus the cost basis.