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Who

David Byron Smith Jr.

Director

Company insider

Files Form 4 as: Director, Illinois Tool Works; Director, Northern Trust.

In numbers

Trades disclosed
142
Buys
6
Sells
5
Bought
$2.8M
Sold
$20.7M
Companies
2
Companies where not an officer
2
First trade
15 Dec 2009
Last trade
7 Aug 2026
Last filed
11 Aug 2026

Companies traded

Everywhere else they filed: board seats, 10% stakes, other companies
ITW Illinois Tool WorksDirector · Machinery · last 7 Aug 20266 buys · 5 sells
NTRS Northern TrustDirector · Regional banks · last 31 Jul 20260 buys · 0 sells

Activity over time

1 Nov 2024 – 1 Oct 2026
01Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
7 Aug 2026filed 11 Aug 2026ITW Illinois Tool WorksMachinerySEC FORM 4 Code A$39K130 at $296.66filing
7 Aug 2026filed 11 Aug 2026ITW Illinois Tool WorksMachinerySEC FORM 4 Code A$39K130 at $296.66filing
31 Jul 2026filed 4 Aug 2026NTRS Northern TrustRegional banksSEC FORM 4 Code G—1,120 at $0.00filing
31 Jul 2026filed 4 Aug 2026NTRS Northern TrustRegional banksSEC FORM 4 Code G—1,120 at $0.00filing
8 May 2026filed 12 May 2026ITW Illinois Tool WorksMachinerySEC FORM 4 Code A$234K917 at $254.76filing
8 May 2026filed 12 May 2026ITW Illinois Tool WorksMachinerySEC FORM 4 Code A$234K917 at $254.76filing
30 Apr 2026filed 1 May 2026NTRS Northern TrustRegional banksSEC FORM 4 Code G—1,200 at $0.00filing
30 Apr 2026filed 1 May 2026NTRS Northern TrustRegional banksSEC FORM 4 Code G—1,200 at $0.00filing
21 Apr 2026filed 23 Apr 2026NTRS Northern TrustRegional banksSEC FORM 4 Code A—989 at $0.00filing
21 Apr 2026filed 23 Apr 2026NTRS Northern TrustRegional banksSEC FORM 4 Code A—989 at $0.00filing
6 Feb 2026filed 10 Feb 2026ITW Illinois Tool WorksMachinerySEC FORM 4 Code A$38K131 at $293.57filing
6 Feb 2026filed 10 Feb 2026ITW Illinois Tool WorksMachinerySEC FORM 4 Code A$38K131 at $293.57filing
30 Jan 2026filed 2 Feb 2026NTRS Northern TrustRegional banksSEC FORM 4 Code G—1,340 at $0.00filing
30 Jan 2026filed 2 Feb 2026NTRS Northern TrustRegional banksSEC FORM 4 Code G—1,340 at $0.00filing
11 Dec 2025filed 12 Dec 2025ITW Illinois Tool WorksMachinerySEC FORM 4 Code J—81,301 at $0.00filing
11 Dec 2025filed 12 Dec 2025ITW Illinois Tool WorksMachinerySEC FORM 4 Code J—5,990 at $0.00filing
11 Dec 2025filed 12 Dec 2025ITW Illinois Tool WorksMachinerySEC FORM 4 Code J—5,990 at $0.00filing
10 Dec 2025filed 12 Dec 2025ITW Illinois Tool WorksMachinerySEC FORM 4 Code G—6,709 at $0.00filing
10 Dec 2025filed 12 Dec 2025ITW Illinois Tool WorksMachinerySEC FORM 4 Bought$1.7M6,709 at $250.13filing
7 Nov 2025filed 12 Nov 2025ITW Illinois Tool WorksMachinerySEC FORM 4 Code A$39K157 at $245.49filing

Sectors

Industrials11

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

Related people

Martin P. SlarkDirector · Director at Northern Trust, filing Form 4 there in the last year
Chandra DhandapaniDirector · Director at Northern Trust, filing Form 4 there in the last year
Richard PetrinoDirector · Director at Northern Trust, filing Form 4 there in the last year
Dean M. HarrisonDirector · Director at Northern Trust, filing Form 4 there in the last year
Marcy S. KlevornDirector · Director at Northern Trust, filing Form 4 there in the last year
Kevin HernRepresentative, OK-01 · Also traded ITW in the last 90 days
Ernest Scott SantiDirector · Also traded ITW in the last 90 days
Matteo C. PigozzoVP & Chief Accounting Officer · Also traded ITW in the last 90 days