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Filing Detail
Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend]
SEC Accession No. 0001104659-22-018321
Filing Date
2022-02-10
Accepted
2022-02-10 08:32:46
Documents
1

Document Format Files

Seq Description Document Type Size
1 SCHEDULE 13G/A tv01651-permapipeinternati_b.htm SC 13G/A 15379
  Complete submission text file 0001104659-22-018321.txt   17366
Mailing Address PO BOX 2600 V26 VALLEY FORGE PA 19482
Business Address PO BOX 2600 V26 VALLEY FORGE PA 19482 6106691000
VANGUARD INDEX FUNDS (Filed by) CIK: 0000036405 (see all company filings)

IRS No.: 231999755 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G/A

Mailing Address 6410 WEST HOWARD STREET NILES IL 60714
Business Address 6410 WEST HOWARD STREET NILES IL 60714 8479661000
Perma-Pipe International Holdings, Inc. (Subject) CIK: 0000914122 (see all company filings)

IRS No.: 363922969 | State of Incorp.: DE | Fiscal Year End: 0131
Type: SC 13G/A | Act: 34 | File No.: 005-43197 | Film No.: 22610538
SIC: 3564 Industrial & Commercial Fans & Blowers & Air Purifing Equip