<SEC-DOCUMENT>0000041719-26-000046-index.html : 20260629 <SEC-HEADER>0000041719-26-000046.hdr.sgml : 20260629 <ACCEPTANCE-DATETIME>20260629143913 ACCESSION NUMBER: 0000041719-26-000046 CONFORMED SUBMISSION TYPE: 11-K PUBLIC DOCUMENT COUNT: 36 CONFORMED PERIOD OF REPORT: 20251231 FILED AS OF DATE: 20260629 DATE AS OF CHANGE: 20260629 FILER: COMPANY DATA: COMPANY CONFORMED NAME: Magnera Corp CENTRAL INDEX KEY: 0000041719 STANDARD INDUSTRIAL CLASSIFICATION: PAPER MILLS [2621] ORGANIZATION NAME: 04 Manufacturing EIN: 230628360 STATE OF INCORPORATION: PA FISCAL YEAR END: 0926 FILING VALUES: FORM TYPE: 11-K SEC ACT: 1934 Act SEC FILE NUMBER: 001-03560 FILM NUMBER: 261134913 BUSINESS ADDRESS: STREET 1: 9335 HARRIS CORNERS PKWY STREET 2: SUITE 300 CITY: CHARLOTTE STATE: NC ZIP: 28269 BUSINESS PHONE: 866-744-7380 MAIL ADDRESS: STREET 1: 9335 HARRIS CORNERS PKWY STREET 2: SUITE 300 CITY: CHARLOTTE STATE: NC ZIP: 28269 FORMER COMPANY: FORMER CONFORMED NAME: Glatfelter Corp DATE OF NAME CHANGE: 20200930 FORMER COMPANY: FORMER CONFORMED NAME: GLATFELTER P H CO DATE OF NAME CHANGE: 19920703 </SEC-HEADER> <DOCUMENT> <TYPE>11-K <SEQUENCE>1 <FILENAME>mgr-20251231.htm <DESCRIPTION>FORM 11-K <TEXT> Document 1 - file: mgr-20251231.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-101.SCH <SEQUENCE>2 <FILENAME>mgr-20251231.xsd <DESCRIPTION>XBRL TAXONOMY EXTENSION - SCHEMA <TEXT> Document 2 - file: mgr-20251231.xsd
</DOCUMENT> <DOCUMENT> <TYPE>EX-101.DEF <SEQUENCE>3 <FILENAME>mgr-20251231_def.xml <DESCRIPTION>XBRL TAXONOMY EXTENSION - DEFINITION LINKBASE <TEXT> Document 3 - file: mgr-20251231_def.xml
</DOCUMENT> <DOCUMENT> <TYPE>EX-101.LAB <SEQUENCE>4 <FILENAME>mgr-20251231_lab.xml <DESCRIPTION>XBRL TAXONOMY EXTENSION - LABEL LINKBASE <TEXT> Document 4 - file: mgr-20251231_lab.xml
</DOCUMENT> <DOCUMENT> <TYPE>EX-101.PRE <SEQUENCE>5 <FILENAME>mgr-20251231_pre.xml <DESCRIPTION>XBRL TAXONOMY EXTENSION - PRESENTATION LINKBASE <TEXT> Document 5 - file: mgr-20251231_pre.xml
</DOCUMENT> <DOCUMENT> <TYPE>EX-101.CAL <SEQUENCE>6 <FILENAME>mgr-20251231_cal.xml <DESCRIPTION>XBRL TAXONOMY EXTENSION - CALCULATION LINKBASE DOCUMENT <TEXT> Document 6 - file: mgr-20251231_cal.xml
</DOCUMENT> <DOCUMENT> <TYPE>EX-23.1 <SEQUENCE>7 <FILENAME>exhibit23-1.htm <DESCRIPTION>EXHIBIT 23.1 <TEXT> Document 7 - file: exhibit23-1.htm
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>9 <FILENAME>R1.htm <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 9 - file: R1.htm
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>10 <FILENAME>R2.htm <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 10 - file: R2.htm
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>11 <FILENAME>R3.htm <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 11 - file: R3.htm
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>12 <FILENAME>R4.htm <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 12 - file: R4.htm
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>13 <FILENAME>R5.htm <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 13 - file: R5.htm
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>14 <FILENAME>R6.htm <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 14 - file: R6.htm
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>15 <FILENAME>R7.htm <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 15 - file: R7.htm
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>16 <FILENAME>R8.htm <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 16 - file: R8.htm
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>17 <FILENAME>R9.htm <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 17 - file: R9.htm
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>18 <FILENAME>R10.htm <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 18 - file: R10.htm
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>19 <FILENAME>R11.htm <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 19 - file: R11.htm
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>20 <FILENAME>R12.htm <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 20 - file: R12.htm
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>21 <FILENAME>R13.htm <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 21 - file: R13.htm
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>22 <FILENAME>R14.htm <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 22 - file: R14.htm
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>23 <FILENAME>R15.htm <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 23 - file: R15.htm
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>24 <FILENAME>R16.htm <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 24 - file: R16.htm
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>25 <FILENAME>R17.htm <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 25 - file: R17.htm
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>26 <FILENAME>R18.htm <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 26 - file: R18.htm
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>27 <FILENAME>R19.htm <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 27 - file: R19.htm
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>28 <FILENAME>R20.htm <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 28 - file: R20.htm
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>29 <FILENAME>R21.htm <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 29 - file: R21.htm
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>30 <FILENAME>R22.htm <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 30 - file: R22.htm
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>31 <FILENAME>R23.htm <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 31 - file: R23.htm
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>32 <FILENAME>report.css <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 32 - file: report.css
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>33 <FILENAME>Show.js <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 33 - file: Show.js
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>35 <FILENAME>FilingSummary.xml <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 35 - file: FilingSummary.html
Document 35 - RAW XML: FilingSummary.xml
</DOCUMENT> <DOCUMENT> <TYPE>JSON <SEQUENCE>38 <FILENAME>MetaLinks.json <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 38 - file: MetaLinks.json
</DOCUMENT> <DOCUMENT> <TYPE>ZIP <SEQUENCE>39 <FILENAME>0000041719-26-000046-xbrl.zip <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 39 - file: 0000041719-26-000046-xbrl.zip
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>40 <FILENAME>mgr-20251231_htm.xml <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 40 - file: mgr-20251231_htm.html
Document 40 - RAW XML: mgr-20251231_htm.xml
</DOCUMENT> </SEC-DOCUMENT>