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Who

Robert B. Toth

Director

Company insider

Files Form 4 as: Director, Materion; Director, SPX Technologies; Chairman, President and CEO, Polypore International.

In numbers

Trades disclosed
193
Buys
5
Sells
11
Bought
$289K
Sold
$48.9M
Companies
3
Companies where not an officer
2
First trade
28 Jun 2007
Last trade
31 Aug 2026
Last filed
31 Aug 2026

Companies traded

Where they are an officer
Polypore InternationalDirector, Officer · last 26 Aug 20155 buys · 11 sells
Everywhere else they filed: board seats, 10% stakes, other companies
MTRN MaterionDirector · Machinery · last 31 Aug 20260 buys · 0 sells
SPXC SPX TechnologiesDirector · Machinery · last 31 Aug 20260 buys · 0 sells

Activity over time

1 Nov 2024 – 1 Oct 2026
101Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
31 Aug 2026filed 31 Aug 2026MTRN MaterionMachinerySEC FORM 4 Code G—28,832 at $0.00filing
31 Aug 2026filed 31 Aug 2026MTRN MaterionMachinerySEC FORM 4 Code G—28,832 at $0.00filing
31 Aug 2026filed 31 Aug 2026MTRN MaterionMachinerySEC FORM 4 Code G—28,832 at $0.00filing
31 Aug 2026filed 31 Aug 2026MTRN MaterionMachinerySEC FORM 4 Code G—28,832 at $0.00filing
31 Aug 2026filed 31 Aug 2026SPXC SPX TechnologiesMachinerySEC FORM 4 Code G—24,892 at $0.00filing
31 Aug 2026filed 31 Aug 2026SPXC SPX TechnologiesMachinerySEC FORM 4 Code G—24,892 at $0.00filing
31 Aug 2026filed 31 Aug 2026SPXC SPX TechnologiesMachinerySEC FORM 4 Code G—24,892 at $0.00filing
31 Aug 2026filed 31 Aug 2026SPXC SPX TechnologiesMachinerySEC FORM 4 Code G—24,892 at $0.00filing
10 Aug 2026filed 12 Aug 2026MTRN MaterionMachinerySEC FORM 4 Code G—28,832 at $0.00filing
10 Aug 2026filed 12 Aug 2026MTRN MaterionMachinerySEC FORM 4 Code G—28,832 at $0.00filing
10 Aug 2026filed 12 Aug 2026MTRN MaterionMachinerySEC FORM 4 Code G—28,832 at $0.00filing
10 Aug 2026filed 12 Aug 2026MTRN MaterionMachinerySEC FORM 4 Code G—28,832 at $0.00filing
10 Aug 2026filed 11 Aug 2026SPXC SPX TechnologiesMachinerySEC FORM 4 Code G—24,892 at $0.00filing
10 Aug 2026filed 11 Aug 2026SPXC SPX TechnologiesMachinerySEC FORM 4 Code G—24,892 at $0.00filing
10 Aug 2026filed 11 Aug 2026SPXC SPX TechnologiesMachinerySEC FORM 4 Code G—24,892 at $0.00filing
10 Aug 2026filed 11 Aug 2026SPXC SPX TechnologiesMachinerySEC FORM 4 Code G—24,892 at $0.00filing
12 May 2026filed 14 May 2026SPXC SPX TechnologiesMachinerySEC FORM 4 Code A—754filing
12 May 2026filed 14 May 2026SPXC SPX TechnologiesMachinerySEC FORM 4 Code A—754filing
8 May 2026filed 11 May 2026MTRN Materionoption or derivative · MachinerySEC FORM 4 Code A—758 at $0.00filing
8 May 2026filed 11 May 2026MTRN Materionoption or derivative · MachinerySEC FORM 4 Code A—758 at $0.00filing

News

No headline names them, or the companies they trade most, lately.

Sectors

Not placed16

Buys in green, sells in red, by the company’s sector.

Related people

Nobody else traded the same names lately.