MFRI Inc

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MFRI Inc
TickerPPIH
CIK #0000914122
CUSIP714167103
SectorTechnology - Industrial & Commercial Fans & Blowers & Air Purifing Equip
Address7720 Lehigh Ave, Niles, IL 60714
Source [EDGAR]
CIK Filing 2011 - 2025
[0000914122] 10-K
[0000914122] 10-Q
[0000914122] 3
[0000914122] 4
[0000914122] 8-K
[0000914122] SC 13D
[0000914122] SC 13G
Form 13D/13G Filer Form 13D/13G Subject Filed % Owned
Raymond James & Associates Perma-Pipe International Holdings Inc [2025-04-15] 0.0
Vanguard Index Funds Perma-Pipe International Holdings Inc [2020-02-12] 5.78
Vanguard Group Inc Perma-Pipe International Holdings Inc [2020-02-11] 6.66
Wells Fargo & Company/MN Perma-Pipe International Holdings Inc [2020-02-04] 0.01
Cannell Capital LLC Perma-Pipe International Holdings Inc [2018-02-14] 11.0
Wells Fargo & Company/MN Perma-Pipe International Holdings Inc [2018-01-30] 6.11
Wells Fargo & Company/MN MFRI Inc [2017-01-27] 6.0
Dinger Carl W III MFRI Inc [2016-10-19] 5.63
Form 3/4/5 Filer 2011 - 2025
Lewicki Matthew Earl
Perma-Pipe International Holdings, Inc.
Mansfield David J
Brown David B
McNally Robert Joseph
Biro Jon C
Alkuwari Ibrahim
Sagr Saleh Nehad Saleh
Boiter Cynthia
Walker Jerome T.
Dewbre Grant
Norwood D Bryan
Bosch Wayne
Barrie David S
Zorko Mark A
Schmidt Karl J
Mautner Bradley E
Elgendy Fati A
Gade Michael J
Unger David
Kessler Dennis
Buck Stephen C
Schwartz Stephen B
Brookstone Arnold F
Murphy Timothy P
Maffei Robert A
Crylen Edward A
Bennett Michael D
Miller Eugene
Foster John Mark
OConnor Gerald P
Form 13F Holdings
Firm Period DFND Voting Shares
Raymond James Financial Inc [2025-06-30] DFND 0 648,165
Dimensional Fund Advisors LP [2025-06-30] SOLE 456,657 459,261
Vanguard Group Inc [2025-06-30] SOLE 0 332,103
Caldwell Sutter Capital Inc [2025-06-30] SOLE 0 241,154
Renaissance Technologies LLC [2025-06-30] SOLE 180,093 180,093
Susquehanna International Group LLP [2025-06-30] OTR 37,418 178,718
Morgan Stanley [2025-06-30] DFND 37 130,375
Cannell Capital LLC [2025-06-30] SOLE 93,911 93,911
Geode Capital Management LLC [2025-06-30] DFND 84,881 84,881
Arrowstreet Capital Limited Partnership [2025-06-30] DFND 73,089 73,089
Shufro Rose & Co LLC [2025-06-30] SOLE 0 70,000
Bridgeway Capital Management LLC [2025-06-30] SOLE 64,422 64,422
American Century Companies Inc [2025-06-30] DFND 57,465 57,465
Truffle Hound Capital LLC [2025-06-30] SOLE 41,000 41,000
Northern Trust Corp [2025-06-30] DFND 35,663 35,663
Informed Momentum Co LLC [2025-06-30] SOLE 34,999 34,999
BlackRock, Inc. [2025-06-30] SOLE 31,372 31,372
State Street Corp [2025-06-30] DFND 29,468 29,468
Flputnam Investment Management Co [2025-06-30] SOLE 25,049 25,049
Connor Clark & Lunn Investment Management Ltd [2025-06-30] SOLE 23,225 23,225
Empowered Funds LLC [2025-06-30] OTR 22,012 22,012
First Financial Bankshares Inc [2025-06-30] DFND 22,000 22,000
Dimensional Fund Advisors LP [2025-06-30] DFND 0 17,264
Baird Financial Group, Inc. [2025-06-30] DFND 16,343 16,343
Millennium Management LLC [2025-06-30] SOLE 13,085 13,085
Essex Investment Management Co LLC [2025-06-30] SOLE 12,942 12,942
Gamco Investors Inc ET AL [2025-06-30] SOLE 12,360 12,360
Hillsdale Investment Management Inc [2025-06-30] SOLE 12,200 12,200
Marshall Wace LLP [2025-06-30] OTR 0 12,023
Royal Bank of Canada [2025-06-30] DFND 116 11,016
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