Perma-Pipe International Holdings, Inc.
US ˙ NasdaqGM ˙ US7141671039

SecurityPPIH / Perma-Pipe International Holdings, Inc.
InstitutionNorthern Trust Corp
Latest Disclosed Ownership30,812 shares
Latest Disclosed Value $ 918,506
Northern Trust Corp reports 3.13% decrease in ownership of PPIH / Perma-Pipe International Holdings, Inc.

On May 14, 2026 - Northern Trust Corp filed a 13F-HR form disclosing ownership of 30,812 shares of Perma-Pipe International Holdings, Inc. (US:PPIH) valued at $918,506 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 31,806 shares of Perma-Pipe International Holdings, Inc.. This represents a change in shares of -3.13% during the quarter. The current value of the position is $1,006,012 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 PERMA-PIPE INTL HLDGS COM 714167103 30,812 -994 -3.13 919 -4.87 0.0000
2026-02-17 2025-12-31 13F PERMA-PIPE INTL HLDGS COM 714167103 31,806 2,468 8.41 966 40.47 0.0000
2025-11-14 2025-09-30 13F PERMA-PIPE INTL HLDGS COM 714167103 29,338 -6,325 -17.74 687 -15.71 0.0000
2025-08-13 2025-06-30 13F PERMA-PIPE INTL HLDGS COM 714167103 35,663 -1,063 -2.89 816 78.73 0.0001
2025-05-13 2025-03-31 13F PERMA-PIPE INTL HLDGS COM 714167103 36,726 1,444 4.09 457 -13.47 0.0001
2025-02-14 2024-12-31 13F PERMA-PIPE INTL HLDGS COM 714167103 35,282 -37,051 -51.22 527 -43.82 0.0001
2024-11-13 2024-09-30 13F PERMA-PIPE INTL HLDGS COM 714167103 72,333 47,501 191.29 939 324.43 0.0002
2024-08-14 2024-06-30 13F PERMA-PIPE INTL HLDGS COM 714167103 24,832 300 1.22 221 14.51 0.0000
2024-05-14 2024-03-31 13F PERMA-PIPE INTL HLDGS COM 714167103 24,532 -1,788 -6.79 194 -7.21 0.0000
2024-02-13 2023-12-31 13F PERMA-PIPE INTL HLDGS COM 714167103 26,320 14,282 118.64 209 112.24 0.0000
2023-11-13 2023-09-30 13F PERMA-PIPE INTL HLDGS COM 714167103 12,038 -2,006 -14.28 98 -26.32 0.0000
2023-08-11 2023-06-30 13F PERMA-PIPE INTL HLDGS COM 714167103 14,044 -41 -0.29 134 -11.33 0.0000
2023-05-15 2023-03-31 13F PERMA-PIPE INTL HLDGS COM 714167103 14,085 752 5.64 151 20.00 0.0000
2023-02-13 2022-12-31 13F PERMA-PIPE INTL HLDGS COM 714167103 13,333 0 0.00 126 -0.79 0.0000
2022-11-14 2022-09-30 13F PERMA-PIPE INTL HLDGS COM 714167103 13,333 573 4.49 126 9.57 0.0000
2022-08-12 2022-06-30 13F PERMA-PIPE INTL HLDGS COM 714167103 12,760 12,760 115 0.0000
2022-05-13 2022-03-31 13F PERMA-PIPE INTL HLDGS COM 714167103 0 -10,828 -100.00 0 -100.00
2022-02-08 2021-12-31 13F PERMA-PIPE INTL HLDGS COM 714167103 10,828 -2,154 -16.59 94 -6.93 0.0000
2021-11-15 2021-09-30 13F PERMA-PIPE INTL HLDGS COM 714167103 12,982 -769 -5.59 101 9.78 0.0000
2021-08-13 2021-06-30 13F PERMA-PIPE INTL HLDGS COM 714167103 13,751 24 0.17 92 10.84 0.0000
2021-05-12 2021-03-31 13F PERMA-PIPE INTL HLDGS COM 714167103 13,727 1,122 8.90 83 7.79 0.0000
2021-02-11 2020-12-31 13F PERMA-PIPE INTL HLDGS COM 714167103 12,605 956 8.21 77 16.67 0.0000
2020-11-16 2020-09-30 13F PERMA PIPE INTL HLDGS COM 714167103 11,649 496 4.45 66 4.76 0.0000
2020-08-14 2020-06-30 13F PERMA PIPE INTL HLDGS COM 714167103 11,153 377 3.50 63 -5.97 0.0000
2020-05-14 2020-03-31 13F PERMA PIPE INTL HLDGS COM 714167103 10,776 -32 -0.30 67 -34.31 0.0000
2020-02-14 2019-12-31 13F PERMA PIPE INTL HLDGS COM 714167103 10,808 10,808 102 0.0000
2019-11-13 2019-09-30 13F PERMA PIPE INTL HLDGS COM 714167103 0 -12,024 -100.00 0 -100.00
2019-08-13 2019-06-30 13F PERMA PIPE INTL HLDGS COM 714167103 12,024 0 0.00 110 3.77 0.0000
2019-05-13 2019-03-31 13F PERMA PIPE INTL HLDGS COM 714167103 12,024 0 0.00 106 0.95 0.0000
2019-02-12 2018-12-31 13F PERMA PIPE INTL HLDGS COM 714167103 12,024 -2,643 -18.02 105 -21.64 0.0000
2018-11-14 2018-09-30 13F PERMA PIPE INTL HLDGS COM 714167103 14,667 -33,212 -69.37 134 -70.09 0.0000
2018-09-18 2018-06-30 13F/A-1 PERMA PIPE INTL HLDGS COM 714167103 47,879 -108 -0.23 448 2.52 0.0001
2018-08-14 2018-06-30 13F PERMA PIPE INTL HLDGS COM 714167103 47,879 -108 448
2018-05-09 2018-03-31 13F PERMA PIPE INTL HLDGS COM 714167103 47,987 -400 -0.83 437 0.46 0.0001
2018-02-14 2017-12-31 13F PERMA PIPE INTL HLDGS COM 714167103 48,387 35,289 269.42 435 291.89 0.0001
2017-11-13 2017-09-30 13F PERMA PIPE INTL HLDGS COM 714167103 13,098 -36,289 -73.48 111 -71.90 0.0000
2017-08-11 2017-06-30 13F PERMA PIPE INTL HLDGS COM 714167103 49,387 35,960 267.82 395 269.16 0.0001
2017-05-12 2017-03-31 13F PERMA PIPE INTL HLDGS COM 714167103 13,427 1,040 8.40 107 7.00 0.0000
2017-02-13 2016-12-31 13F MFRI COM 552721102 12,387 721 6.18 100 11.11 0.0000
2016-11-09 2016-09-30 13F MFRI COM 552721102 11,666 64 0.55 90 3.45 0.0000
2016-08-12 2016-06-30 13F MFRI COM 552721102 11,602 0 0.00 87 6.10 0.0000
2016-08-19 2016-03-31 13F/A-1 MFRI COM 552721102 11,602 0 0.00 82 7.89 0.0000
2016-05-13 2016-03-31 13F MFRI COM 552721102 11,602 82
2016-02-12 2015-12-31 13F MFRI COM 552721102 11,602 0 0.00 76 26.67 0.0000
2015-11-12 2015-09-30 13F MFRI COM 552721102 11,602 11,602 0.00 60 0.0000
2015-08-13 2015-06-30 13F MFRI COM 552721102 0 -12,328 -100.00 0 -100.00
2015-05-14 2015-03-31 13F MFRI COM 552721102 12,328 -803 -6.12 77 -16.30 0.0000
2015-02-12 2014-12-31 13F MFRI COM 552721102 13,131 -238 -1.78 92 -27.56 0.0000
2014-11-13 2014-09-30 13F MFRI COM 552721102 13,369 -2,619 -16.38 127 -30.22 0.0000
2014-08-14 2014-06-30 13F MFRI COM 552721102 15,988 2,910 22.25 182 2.25 0.0001
2014-05-14 2014-03-31 13F MFRI COM 552721102 13,078 -39,341 -75.05 178 -76.33 0.0001
2014-02-21 2013-12-31 13F/A-1 MFRI COM 552721102 52,419 39,193 296.33 752 398.01 0.0002
2014-02-12 2013-12-31 13F MFRI COM 552721102 52,419 752
2013-11-13 2013-09-30 13F MFRI COM 552721102 13,226 -3,668 -21.71 151 -21.35 0.0001
2013-08-09 2013-06-30 13F MFRI COM 552721102 16,894 16,894 192 0.0001
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.