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Disclosery

MPTI M-TRON INDS INC

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COMMON STOCK (common), issuer CIK 1902314

71 managers (71 13F filers) reported a position in MPTI shares at 2025-06-30, 1,366,512 shares in all. 22 filers opened a position and 7 filers sold out during the quarter.

Managers
71
13F filers
71
New
22
Added
21
Reduced
16
Sold out
7
Shares held by filers
1,366,512

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q2 2025

Filers in the available 13F reports with a share position at 2025-06-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
GAMCO INVESTORS, INC. ET ALin group GAMCO Investors (Gabelli)144,500$6.07M0.06%-3,80013F-HRTimelineGroup
VANGUARD GROUP INCin group VANGUARD GROUP INC124,470$5.23M<0.01%+18,33913F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.118,460$4.98M<0.01%+104,25913F-HRTimelineGroup
Archon Capital Management LLC100,668$4.23M3.47%new13F-HRTimeline
BARD ASSOCIATES INC87,087$3.66M1.18%-1,50013F-HRTimeline
NEXT CENTURY GROWTH INVESTORS LLC68,777$2.89M0.22%-1,82913F-HRTimeline
Palisades Investment Partners, LLC62,088$2.61M1.14%-89213F-HRTimeline
MARSHALL WACE, LLPin group MARSHALL WACE, LLP56,263$2.36M<0.01%+17,94313F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC54,731$2.3M<0.01%+29,60513F-HRTimelineGroup
G2 Investment Partners Management LLC51,336$2.16M0.47%+21,88213F-HRTimeline
RENAISSANCE TECHNOLOGIES LLC38,605$1.62M<0.01%+6,00013F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.35,628$1.5M<0.01%+2,01713F-HR/ATimelineGroup
HERALD INVESTMENT MANAGEMENT Ltd35,000$1.46M0.22%013F-HRTimeline
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP30,772$1.29M<0.01%-1,66413F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP29,957$1.26M<0.01%+19,33413F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY27,622$1.16M<0.01%+12,69313F-HRTimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND27,300$1.15M<0.01%+2,50013F-HR/ATimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP25,829$1.08M<0.01%+20,66713F-HRTimelineGroup
Illumine Investment Management, LLC24,266$1.02M0.81%+27213F-HRTimeline
MCINTYRE FREEDMAN & FLYNN INVESTMENT AD…22,000$924K0.65%013F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…21,215$891K<0.01%-3,28313F-HRTimelineGroup
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC20,446$859K<0.01%+9,49313F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC15,998$672K<0.01%new13F-HRTimelineGroup
Evernest Financial Advisors, LLC15,675$658K0.21%new13F-HRTimeline
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC11,096$466K<0.01%-32213F-HRTimelineGroup
BOOTHBAY FUND MANAGEMENT, LLC8,900$374K0.01%+3,38313F-HRTimeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co8,768$368K<0.01%new13F-HRTimelineGroup
Janney Montgomery Scott LLC8,143$342K<0.01%+1,52413F-HRTimeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC8,020$336K<0.01%-2,34713F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp6,843$287K<0.01%new13F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP6,615$278K<0.01%new13F-HRTimelineGroup
LOS ANGELES CAPITAL MANAGEMENT LLC6,535$274K<0.01%new13F-HRTimeline
BRIDGEWAY CAPITAL MANAGEMENT, LLC6,334$266K0.01%013F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC6,235$262K<0.01%-12,68813F-HRTimelineGroup
UBS Group AGin group UBS Group AG6,025$253K<0.01%+5,92513F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC5,942$250K<0.01%-3,81913F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA5,749$241K<0.01%-1,04413F-HR/ATimelineGroup
Quadrature Capital Ltdin group Quadrature Capital Ltd4,938$206K<0.01%new13F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC4,642$195K<0.01%+4,19713F-HR/ATimelineGroup
RHUMBLINE ADVISERS3,526$148K<0.01%new13F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/2,899$122K<0.01%-1,36113F-HRTimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\2,449$103K<0.01%new13F-HRTimelineGroup
UMB Bank, n.a.2,133$89.6K<0.01%013F-HR/ATimeline
Truvestments Capital LLC1,772$74.4K0.01%-32413F-HRTimeline
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC1,586$66.6K<0.01%new13F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN1,369$57.5K<0.01%+56613F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO1,160$48.7K<0.01%new13F-HRTimelineGroup
CITIGROUP INCin group CITIGROUP INC871$36.6K<0.01%new13F-HRTimelineGroup
CALDWELL SUTTER CAPITAL, INC.724$30.4K0.01%013F-HRTimeline
Police & Firemen's Retirement System of…687$28.9K<0.01%new13F-HRTimeline
AlphaQuest LLC567$23.8K<0.01%-1,07413F-HRTimeline
OPTIMUM INVESTMENT ADVISORS500$21K0.01%+30013F-HRTimeline
CIBC Private Wealth Group LLCin group CIBC Bancorp USA Inc.500$21K<0.01%013F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS451$18.9K<0.01%-21813F-HRTimelineGroup
BFSG, LLC300$12.6K<0.01%013F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc272$11.4K<0.01%new13F-HRTimelineGroup
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…251$10.5K<0.01%new13F-HRTimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…187$7.85K<0.01%new13F-HRTimelineGroup
CALIFORNIA STATE TEACHERS RETIREMENT SY…153$6.43K<0.01%new13F-HRTimeline
SBI Securities Co., Ltd.149$6.26K<0.01%+12913F-HRTimeline
IFP Advisors, Inc100$4.2K<0.01%+5013F-HRTimeline
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.97$4.07K<0.01%-11013F-HRTimelineGroup
AMALGAMATED BANK84$4K<0.01%new13F-HRTimeline
MCF Advisors LLC88$3.7K<0.01%013F-HRTimeline
WealthCollab, LLC81$3.4K<0.01%013F-HRTimeline
CoreCap Advisors, LLC39$1.64K<0.01%013F-HRTimeline
FMR LLCin group FMR LLC18$772<0.01%new13F-HRTimelineGroup
Plante Moran Financial Advisors, LLC10$420<0.01%new13F-HRTimeline
Sterling Capital Management LLC6$252<0.01%new13F-HR/ATimeline
Founders Capital Management5$210<0.01%013F-HRTimeline
CONCOURSE FINANCIAL GROUP SECURITIES, I…0$0013F-HRTimelineValue filed as zero, left out of ratios. Amount filed as zero, left out of ratios.