Mativ Holdings, Inc.
US ˙ NYSE

SecurityMATV / Mativ Holdings, Inc.
InstitutionNorthern Trust Corp
Latest Disclosed Ownership531,781 shares
Latest Disclosed Value $ 4,626,495
Northern Trust Corp reports 18.06% increase in ownership of MATV / Mativ Holdings, Inc.

On May 14, 2026 - Northern Trust Corp filed a 13F-HR form disclosing ownership of 531,781 shares of Mativ Holdings, Inc. (US:MATV) valued at $4,626,495 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 450,424 shares of Mativ Holdings, Inc.. This represents a change in shares of 18.06% during the quarter. The current value of the position is $4,084,078 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 Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F MATIV HOLDINGS COM 808541106 531,781 81,357 18.06 4,626 -15.46 0.0001
2026-02-17 2025-12-31 13F MATIV HOLDINGS COM 808541106 450,424 -27,776 -5.81 5,473 1.18 0.0007
2025-11-14 2025-09-30 13F MATIV HOLDINGS COM 808541106 478,200 8,150 1.73 5,408 68.74 0.0007
2025-08-13 2025-06-30 13F MATIV HOLDINGS COM 808541106 470,050 -73,807 -13.57 3,206 -5.40 0.0004
2025-05-13 2025-03-31 13F MATIV HOLDINGS COM 808541106 543,857 -41,897 -7.15 3,388 -46.93 0.0005
2025-02-14 2024-12-31 13F MATIV HOLDINGS COM 808541106 585,754 18,962 3.35 6,385 -33.70 0.0009
2024-11-13 2024-09-30 13F MATIV HOLDINGS COM 808541106 566,792 2,118 0.38 9,630 0.55 0.0016
2024-08-14 2024-06-30 13F MATIV HOLDINGS COM 808541106 564,674 -17,820 -3.06 9,577 -12.32 0.0016
2024-05-14 2024-03-31 13F MATIV HOLDINGS COM 808541106 582,494 -20,398 -3.38 10,922 18.32 0.0019
2024-02-13 2023-12-31 13F MATIV HOLDINGS COM 808541106 602,892 19,543 3.35 9,230 10.96 0.0017
2023-11-13 2023-09-30 13F MATIV HOLDINGS COM 808541106 583,349 -43 -0.01 8,319 -5.69 0.0016
2023-08-11 2023-06-30 13F MATIV HOLDINGS COM 808541106 583,392 -10,766 -1.81 8,821 -30.86 0.0017
2023-05-15 2023-03-31 13F MATIV HOLDINGS COM 808541106 594,158 -35,397 -5.62 12,757 -3.05 0.0025
2023-02-13 2022-12-31 13F MATIV HOLDINGS COM 808541106 629,555 1,066 0.17 13,158 -5.19 0.0028
2022-11-14 2022-09-30 13F MATIV HOLDINGS COM 808541106 628,489 292,629 87.13 13,877 64.48 0.0032
2022-08-12 2022-06-30 13F SCHWEITZER-MAUDUIT INTL COM 808541106 335,860 -87 -0.03 8,437 -8.67 0.0018
2022-05-13 2022-03-31 13F SCHWEITZER-MAUDUIT INTL COM 808541106 335,947 -44,035 -11.59 9,238 -18.69 0.0016
2022-02-08 2021-12-31 13F SCHWEITZER-MAUDUIT INTL COM 808541106 379,982 -24,937 -6.16 11,362 -19.04 0.0019
2021-11-15 2021-09-30 13F SCHWEITZER-MAUDUIT INTL COM 808541106 404,919 -6,747 -1.64 14,034 -15.57 0.0025
2021-08-13 2021-06-30 13F SCHWEITZER-MAUDUIT INTL COM 808541106 411,666 -6,096 -1.46 16,623 -18.75 0.0029
2021-05-12 2021-03-31 13F SCHWEITZER-MAUDUIT INTL COM 808541106 417,762 -72,520 -14.79 20,458 3.77 0.0038
2021-02-11 2020-12-31 13F SCHWEITZER-MAUDUIT INTL COM 808541106 490,282 -15,937 -3.15 19,715 28.15 0.0038
2020-11-16 2020-09-30 13F SCHWEITZER-MAUDUIT INTL COM 808541106 506,219 -18,888 -3.60 15,384 -12.31 0.0034
2020-08-14 2020-06-30 13F SCHWEITZER-MAUDUIT INTL COM 808541106 525,107 -3,859 -0.73 17,543 19.21 0.0042
2020-05-14 2020-03-31 13F SCHWEITZER-MAUDUIT INTL COM 808541106 528,966 10,145 1.96 14,716 -32.45 0.0042
2020-02-14 2019-12-31 13F SCHWEITZER-MAUDUIT INTL COM 808541106 518,821 -8,687 -1.65 21,784 10.30 0.0049
2019-11-13 2019-09-30 13F SCHWEITZER-MAUDUIT INTL COM 808541106 527,508 11,815 2.29 19,749 15.42 0.0047
2019-08-13 2019-06-30 13F SCHWEITZER-MAUDUIT INTL COM 808541106 515,693 16,701 3.35 17,110 -11.44 0.0041
2019-05-13 2019-03-31 13F SCHWEITZER-MAUDUIT INTL COM 808541106 498,992 476 0.10 19,320 54.71 0.0048
2019-02-12 2018-12-31 13F SCHWEITZER-MAUDUIT INTL COM 808541106 498,516 -55,171 -9.96 12,488 -41.12 0.0035
2018-11-14 2018-09-30 13F SCHWEITZER-MAUDUIT INTL COM 808541106 553,687 5,071 0.92 21,211 -11.57 0.0052
2018-09-18 2018-06-30 13F/A-1 SCHWEITZER-MAUDUIT INTL COM 808541106 548,616 83,452 17.94 23,985 31.71 0.0061
2018-08-14 2018-06-30 13F SCHWEITZER-MAUDUIT INTL COM 808541106 550,636 85,472 24,073
2018-05-09 2018-03-31 13F SCHWEITZER-MAUDUIT INTL COM 808541106 465,164 5,103 1.11 18,210 -12.74 0.0047
2018-02-14 2017-12-31 13F SCHWEITZER-MAUDUIT INTL COM 808541106 460,061 -4,649 -1.00 20,868 8.31 0.0053
2017-11-13 2017-09-30 13F SCHWEITZER-MAUDUIT INTL COM 808541106 464,710 47 0.01 19,267 11.38 0.0050
2017-08-11 2017-06-30 13F SCHWEITZER-MAUDUIT INTL COM 808541106 464,663 8,425 1.85 17,299 -8.46 0.0048
2017-05-12 2017-03-31 13F SCHWEITZER-MAUDUIT INTL COM 808541106 456,238 3,618 0.80 18,898 -8.29 0.0054
2017-02-13 2016-12-31 13F SCHWEITZER-MAUDUIT INTL COM 808541106 452,620 62,708 16.08 20,607 37.06 0.0063
2016-11-09 2016-09-30 13F SCHWEITZER-MAUDUIT INTL COM 808541106 389,912 6,280 1.64 15,035 11.08 0.0047
2016-08-12 2016-06-30 13F SCHWEITZER-MAUDUIT INTL COM 808541106 383,632 12,412 3.34 13,535 15.20 0.0044
2016-08-19 2016-03-31 13F/A-1 SCHWEITZER-MAUDUIT INTL COM 808541106 371,220 1,516 0.41 11,749 -24.32 0.0039
2016-05-13 2016-03-31 13F Schweitzer-Mauduit I COMM 808541106 371,218 11,686
2016-02-12 2015-12-31 13F Schweitzer-Mauduit I COMM 808541106 369,704 6,233 1.71 15,524 24.23 0.0051
2015-11-12 2015-09-30 13F SCHWEITZER-MAUDUIT INTL COM 808541106 363,471 363,471 0.00 12,496 0.0042
2015-08-13 2015-06-30 13F Schweitzer-Mauduit I COMM 808541106 0 -600,502 -100.00 0 -100.00
2015-05-14 2015-03-31 13F Schweitzer-Mauduit I COMM 808541106 600,502 22,678 3.92 27,695 13.31 0.0083
2015-02-12 2014-12-31 13F Schweitzer-Mauduit I COM 808541106 577,824 32,983 6.05 24,441 8.59 0.0074
2014-11-13 2014-09-30 13F Schweitzer-Mauduit I COMM 808541106 544,841 53,328 10.85 22,507 4.88 0.0071
2014-08-14 2014-06-30 13F SCHWEITZER-MAUDUIT INTL com 808541106 491,513 -133,915 -21.41 21,460 -19.44 0.0067
2014-05-14 2014-03-31 13F SCHWEITZER-MAUDUIT INTL COMM 808541106 625,428 65,694 11.74 26,637 -7.54 0.0084
2014-02-21 2013-12-31 13F/A-1 SCHWEITZER-MAUDUIT INTL COM 808541106 559,734 11,815 2.16 28,810 -13.13 0.0092
2014-02-12 2013-12-31 13F SCHWEITZER-MAUDUIT INTL COM 808541106 559,734 28,810
2013-11-13 2013-09-30 13F SCHWEITZER-MAUDUIT INTL COM 808541106 547,919 -19,784 -3.48 33,166 17.12 0.0117
2013-08-09 2013-06-30 13F SCHWEITZER-MAUDUIT INTL COM 808541106 567,703 567,703 28,317 0.0103
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.