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Who

T. J. Chung

Director

Company insider

Files Form 4 as: Director, Littelfuse; Director, Airgain; Director, MasterCraft Boat Holdings; VP & President Bnt, Brunswick.

In numbers

Trades disclosed
215
Buys
1
Sells
14
Bought
$21K
Sold
$6.6M
Companies
4
Companies where not an officer
3
First trade
14 Feb 2006
Last trade
3 Sep 2026
Last filed
8 Sep 2026

Companies traded

Where they are an officer
BC BrunswickOfficer · Machinery · last 20 Feb 20070 buys · 4 sells
Everywhere else they filed: board seats, 10% stakes, other companies
LFUS LittelfuseDirector · Electrical Equipment & Grid · last 3 Sep 20260 buys · 10 sells
AIRG AirgainDirector · Hardware, Devices & Storage · last 2 Feb 20261 buy · 0 sells
MCFT MasterCraft Boat HoldingsDirector · Marine Shipping · last 27 Jul 20210 buys · 0 sells

Activity over time

1 Nov 2024 – 1 Oct 2026
10Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
3 Sep 2026filed 8 Sep 2026LFUS LittelfuseElectrical Equipment & GridSEC FORM 4 Code A$7,04217 at $414.24filing
3 Sep 2026filed 8 Sep 2026LFUS LittelfuseElectrical Equipment & GridSEC FORM 4 Code A$4141 at $414.24filing
3 Sep 2026filed 8 Sep 2026LFUS LittelfuseElectrical Equipment & GridSEC FORM 4 Code A$7,04217 at $414.24filing
3 Sep 2026filed 8 Sep 2026LFUS LittelfuseElectrical Equipment & GridSEC FORM 4 Code A$4141 at $414.24filing
4 Jun 2026filed 8 Jun 2026LFUS LittelfuseElectrical Equipment & GridSEC FORM 4 Code A$4,80210 at $480.24filing
4 Jun 2026filed 8 Jun 2026LFUS LittelfuseElectrical Equipment & GridSEC FORM 4 Code A$1,4413 at $480.24filing
4 Jun 2026filed 8 Jun 2026LFUS LittelfuseElectrical Equipment & GridSEC FORM 4 Code A$4,80210 at $480.24filing
4 Jun 2026filed 8 Jun 2026LFUS LittelfuseElectrical Equipment & GridSEC FORM 4 Code A$1,4413 at $480.24filing
22 Apr 2026filed 24 Apr 2026LFUS LittelfuseElectrical Equipment & GridSEC FORM 4 Code A—482 at $0.00filing
22 Apr 2026filed 24 Apr 2026LFUS LittelfuseElectrical Equipment & GridSEC FORM 4 Code A—482 at $0.00filing
5 Mar 2026filed 9 Mar 2026LFUS LittelfuseElectrical Equipment & GridSEC FORM 4 Code A$6,79521 at $323.58filing
5 Mar 2026filed 9 Mar 2026LFUS LittelfuseElectrical Equipment & GridSEC FORM 4 Code A$6472 at $323.58filing
5 Mar 2026filed 9 Mar 2026LFUS LittelfuseElectrical Equipment & GridSEC FORM 4 Code A$6,79521 at $323.58filing
5 Mar 2026filed 9 Mar 2026LFUS LittelfuseElectrical Equipment & GridSEC FORM 4 Code A$6472 at $323.58filing
2 Feb 2026filed 4 Feb 2026AIRG AirgainHardware, Devices & StorageSEC FORM 4 Code A—7,257 at $0.00filing
2 Feb 2026filed 4 Feb 2026AIRG Airgainoption or derivative · Hardware, Devices & StorageSEC FORM 4 Code A—12,660 at $0.00filing
2 Feb 2026filed 4 Feb 2026AIRG Airgainoption or derivative · Hardware, Devices & StorageSEC FORM 4 Code A—12,660 at $0.00filing
2 Feb 2026filed 4 Feb 2026AIRG AirgainHardware, Devices & StorageSEC FORM 4 Code A—7,257 at $0.00filing
2 Jan 2026filed 5 Jan 2026AIRG AirgainHardware, Devices & StorageSEC FORM 4 Code A—2,308 at $0.00filing
2 Jan 2026filed 5 Jan 2026AIRG AirgainHardware, Devices & StorageSEC FORM 4 Code A—2,308 at $0.00filing

Sectors

Industrials14
Technology1

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

Related people

Brenna PreisserE.V.P. & President Boat Group · E.V.P. & President Boat Group at Brunswick, filing Form 4 there in the last year
Ryan M. GwillimE.V.P. , CFO, Cso · E.V.P. , CFO, Cso at Brunswick, filing Form 4 there in the last year
John G. BuelowEVP & President Mercury Marine · EVP & President Mercury Marine at Brunswick, filing Form 4 there in the last year
Aine DenariEVP, Pres. Navico Group, CTO · EVP, Pres. Navico Group, CTO at Brunswick, filing Form 4 there in the last year
David C. EverittDirector · Director at Brunswick, filing Form 4 there in the last year
Stephan D. MemmenDirector · Also traded AIRG in the last 90 days
Jacob SuenPresident and CEO · Also traded AIRG in the last 90 days
James K. SimsDirector · Also traded AIRG in the last 90 days