Who Owns M TRON INDS INC COM (MPTI)? -- Institutional Holders (2026-06-30)

127 institutions reported holding $289.4M of M TRON INDS INC COM (MPTI) in SEC 13F filings for 2026-06-30. Largest institutional holders: T. Rowe Price Investment Management, Inc. ($25.3M), BlackRock, Inc. ($25.1M), VANGUARD GROUP INC ($23.2M), GAMCO INVESTORS, INC. ET AL ($20.0M), ROYCE & ASSOCIATES LP ($15.5M). Source: SEC Form 13F.

Rank	Institution	Value	Shares	Change
1	T. Rowe Price Investment Management, Inc.	$25.3M	255,506	New
2	BlackRock, Inc.	$25.1M	252,972	Added
3	VANGUARD GROUP INC	$23.2M	233,749	Added
4	GAMCO INVESTORS, INC. ET AL	$20.0M	201,280	Added
5	ROYCE & ASSOCIATES LP	$15.5M	156,595	Added
6	TWO SIGMA INVESTMENTS, LP	$13.1M	132,465	Added
7	NEXT CENTURY GROWTH INVESTORS LLC	$12.3M	124,173	Added
8	GEODE CAPITAL MANAGEMENT, LLC	$10.0M	100,646	Added
9	RENAISSANCE TECHNOLOGIES LLC	$9.5M	96,005	Trimmed
10	STATE STREET CORP	$8.2M	82,493	Added
11	Palisades Investment Partners, LLC	$8.2M	82,296	Added
12	Congruence Capital, LLC	$6.6M	66,701	Added
13	ADVISORY RESEARCH INC	$5.9M	59,011	Added
14	Herald Investment Management Ltd	$5.8M	58,500	Added
15	Grandeur Peak Global Advisors, LLC	$5.6M	56,681	Added
16	D. E. Shaw & Co., Inc.	$4.8M	48,493	Added
17	DIMENSIONAL FUND ADVISORS LP	$4.7M	47,681	Added
18	HUNTER ASSOCIATES INVESTMENT MANAGEMENT LLC	$4.6M	46,804	New
19	BARD ASSOCIATES INC	$4.4M	44,578	Trimmed
20	Aristides Capital LLC	$4.1M	41,209	Trimmed
21	NORTHERN TRUST CORP	$3.9M	39,832	Added
22	Potrero Capital Research LLC	$3.8M	38,161	Added
23	NEW YORK STATE COMMON RETIREMENT FUND	$3.1M	31,660	Hold
24	BNP PARIBAS FINANCIAL MARKETS	$3.0M	30,583	Added
25	MCINTYRE FREEDMAN & FLYNN INVESTMENT ADVISERS INC	$2.6M	25,800	Added

来源：SEC 13F 申报文件 · 截至 2026-06-30