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Who

michael C. arnold

Director

Company insider

Files Form 4 as: Director, Kaiser Aluminum; Director, Agco; President and CEO, Ryerson Holding; Director, Gardner Denver; ExVP Brngs & Pwr Transmission, Timken.

In numbers

Trades disclosed
165
Buys
3
Sells
4
Bought
$743K
Sold
$7.4M
Companies
5
Companies where not an officer
3
First trade
31 Jan 2006
Last trade
4 Jun 2026
Last filed
5 Jun 2026

Companies traded

Where they are an officer
RYZ Ryerson HoldingOfficer · Distributors & Wholesale · last 17 Nov 20142 buys · 0 sells
TKR TimkenOfficer · Machinery · last 29 Nov 20100 buys · 4 sells
Everywhere else they filed: board seats, 10% stakes, other companies
KALU Kaiser AluminumDirector · Steel & Metals Processing · last 4 Jun 20260 buys · 0 sells
AGCO AgcoDirector · Machinery · last 23 Apr 20261 buy · 0 sells
Gardner DenverDirector · last 30 Jul 20130 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
4 Jun 2026filed 5 Jun 2026KALU Kaiser AluminumSteel & Metals ProcessingSEC FORM 4 Code A—786 at $0.00filing
4 Jun 2026filed 5 Jun 2026KALU Kaiser AluminumSteel & Metals ProcessingSEC FORM 4 Code A—786 at $0.00filing
23 Apr 2026filed 27 Apr 2026AGCO AgcoMachinerySEC FORM 4 Code A—1,673 at $0.00filing
23 Apr 2026filed 27 Apr 2026AGCO AgcoMachinerySEC FORM 4 Code A—1,673 at $0.00filing
10 Jun 2025filed 12 Jun 2025KALU Kaiser AluminumSteel & Metals ProcessingSEC FORM 4 Code A—1,905 at $0.00filing
10 Jun 2025filed 12 Jun 2025KALU Kaiser AluminumSteel & Metals ProcessingSEC FORM 4 Code A$67K918 at $73.49filing
24 Apr 2025filed 28 Apr 2025AGCO AgcoMachinerySEC FORM 4 Code A—2,157 at $0.00filing
7 Aug 2024filed 8 Aug 2024AGCO AgcoMachinerySEC FORM 4 Bought$158K1,800 at $87.69filing
11 Jun 2024filed 12 Jul 2024KALU Kaiser AluminumSteel & Metals ProcessingSEC FORM 4 Code A—1,444 at $0.00filing
11 Jun 2024filed 12 Jul 2024KALU Kaiser AluminumSteel & Metals ProcessingSEC FORM 4 Code A$135K1,393 at $96.89filing
11 Jun 2024filed 13 Jun 2024KALU Kaiser AluminumSteel & Metals ProcessingSEC FORM 4 Code A—1,444 at $0.00filing
11 Jun 2024filed 13 Jun 2024KALU Kaiser AluminumSteel & Metals ProcessingSEC FORM 4 Code A$54K557 at $96.89filing
25 Apr 2024filed 30 Apr 2024AGCO AgcoMachinerySEC FORM 4 Code A—1,572 at $0.00filing
7 Jun 2023filed 9 Jun 2023KALU Kaiser AluminumSteel & Metals ProcessingSEC FORM 4 Code A—2,060 at $0.00filing
7 Jun 2023filed 9 Jun 2023KALU Kaiser AluminumSteel & Metals ProcessingSEC FORM 4 Code A$54K856 at $63.08filing
27 Apr 2023filed 1 May 2023AGCO AgcoMachinerySEC FORM 4 Code A—1,341 at $0.00filing
27 Apr 2023filed 1 May 2023AGCO AgcoMachinerySEC FORM 4 Code F$33K269 at $122.99filing
2 Jun 2022filed 6 Jun 2022KALU Kaiser AluminumSteel & Metals ProcessingSEC FORM 4 Code A—1,325 at $0.00filing
28 Apr 2022filed 2 May 2022AGCO AgcoMachinerySEC FORM 4 Code A—1,296 at $0.00filing
28 Apr 2022filed 2 May 2022AGCO AgcoMachinerySEC FORM 4 Code F$33K260 at $127.31filing

Sectors

Industrials7

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

Related people

Andrew S. GreiffEVP · EVP at Ryerson Holding, filing Form 4 there in the last year
James J. ClaussenExecutive Vice President & CFO · Executive Vice President & CFO at Ryerson Holding, filing Form 4 there in the last year
Molly D. KannanCAO & Corporate Controller · CAO & Corporate Controller at Ryerson Holding, filing Form 4 there in the last year
Edward J. LehnerCEO · CEO at Ryerson Holding, filing Form 4 there in the last year
Richard T. MarabitoPresident & COO · President & COO at Ryerson Holding, filing Form 4 there in the last year
Ivory Marie HarrisSVP Chief HR Officer · Also traded AGCO in the last 90 days
Eric P. HansotiaChairman, President and CEO · Also traded AGCO in the last 90 days
Kelvin Eugene BennettSVP Engineering · Also traded AGCO in the last 90 days