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Who

Keith Barnes

Director

Company insider

Files Form 4 as: Director, Knowles; Director, Viavi Solutions; Director, Rogers; Director, Mentor Graphics; Director, Spansion; Director, Intermec; Chief Executive Officer, Verigy; Director, Cascade Microtech.

In numbers

Trades disclosed
539
Buys
1
Sells
54
Bought
$91K
Sold
$21.9M
Companies
8
Companies where not an officer
7
First trade
12 Jun 2006
Last trade
28 Apr 2026
Last filed
29 Apr 2026

Companies traded

Where they are an officer
VerigyDirector, Officer · last 4 Jul 20110 buys · 15 sells
Everywhere else they filed: board seats, 10% stakes, other companies
KN KnowlesDirector · Electrical Equipment & Grid · last 28 Apr 20260 buys · 7 sells
VIAV Viavi SolutionsDirector · Electronic Components & EMS · last 13 Nov 20250 buys · 15 sells
ROG RogersDirector · Chemicals · last 4 May 20230 buys · 7 sells
Mentor GraphicsDirector · last 30 Mar 20170 buys · 7 sells
SpansionDirector · last 12 Mar 20150 buys · 3 sells
IntermecDirector · last 17 Sep 20131 buy · 0 sells
Cascade MicrotechDirector · last 31 Dec 20100 buys · 0 sells

Activity over time

1 Nov 2024 – 1 Oct 2026
20Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
28 Apr 2026filed 29 Apr 2026KN KnowlesElectrical Equipment & GridSEC FORM 4 Code A$190K6,265 at $30.33filing
28 Apr 2026filed 29 Apr 2026KN KnowlesElectrical Equipment & GridSEC FORM 4 Code A$190K6,265 at $30.33filing
19 Feb 2026filed 24 Feb 2026KN KnowlesElectrical Equipment & GridSEC FORM 4 Sold$1.1M41,048 at $27.16filing
19 Feb 2026filed 24 Feb 2026KN KnowlesElectrical Equipment & GridSEC FORM 4 Sold$1.1M41,048 at $27.16filing
10 Feb 2026filed 24 Feb 2026KN KnowlesElectrical Equipment & GridSEC FORM 4 Code G—41,048 at $0.00filing
10 Feb 2026filed 24 Feb 2026KN KnowlesElectrical Equipment & GridSEC FORM 4 Code G—41,048 at $0.00filing
10 Feb 2026filed 24 Feb 2026KN KnowlesElectrical Equipment & GridSEC FORM 4 Code G—41,048 at $0.00filing
10 Feb 2026filed 24 Feb 2026KN KnowlesElectrical Equipment & GridSEC FORM 4 Code G—41,048 at $0.00filing
13 Nov 2025filed 13 Nov 2025VIAV Viavi Solutionsoption or derivative · Electronic Components & EMSSEC FORM 4 Code A—14,369 at $0.00filing
10 Nov 2025filed 12 Nov 2025VIAV Viavi SolutionsElectronic Components & EMSSEC FORM 4 Sold$429K23,529 at $18.22filing
10 Nov 2025filed 12 Nov 2025VIAV Viavi SolutionsElectronic Components & EMSSEC FORM 4 Sold$1.8M97,938 at $18.17filing
7 Nov 2025filed 10 Nov 2025VIAV Viavi Solutionsoption or derivative · Electronic Components & EMSSEC FORM 4 Code M—23,529 at $0.00filing
7 Nov 2025filed 10 Nov 2025VIAV Viavi SolutionsElectronic Components & EMSSEC FORM 4 Code M—23,529 at $0.00filing
3 Nov 2025filed 4 Nov 2025VIAV Viavi SolutionsElectronic Components & EMSSEC FORM 4 Sold$696K40,363 at $17.25filing
3 Nov 2025filed 4 Nov 2025VIAV Viavi SolutionsElectronic Components & EMSSEC FORM 4 Sold$235K13,570 at $17.34filing
29 Apr 2025filed 1 May 2025KN KnowlesElectrical Equipment & GridSEC FORM 4 Code A$190K11,890 at $15.98filing
4 Feb 2025filed 5 Feb 2025VIAV Viavi SolutionsElectronic Components & EMSSEC FORM 4 Sold$189K15,418 at $12.24filing
7 Nov 2024filed 7 Nov 2024VIAV Viavi Solutionsoption or derivative · Electronic Components & EMSSEC FORM 4 Code A—23,529 at $0.00filing
6 Nov 2024filed 7 Nov 2024VIAV Viavi Solutionsoption or derivative · Electronic Components & EMSSEC FORM 4 Code M—26,819 at $0.00filing
6 Nov 2024filed 7 Nov 2024VIAV Viavi SolutionsElectronic Components & EMSSEC FORM 4 Code M—26,819 at $0.00filing

The newest 500 lines are listed; the numbers count every line.

Sectors

Technology15
Industrials7
Materials7
Not placed26

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

Related people

Luke M. ScrivanichSVP General Manager OSP · Also traded VIAV in the last 90 days
Paul McNabEVP, Chief Mktg & Stgy Officer · Also traded VIAV in the last 90 days
Ilan DaskalEVP, CFO · Also traded VIAV in the last 90 days
Cheryl L. ShaversDirector · Also traded KN in the last 90 days
Laura A. BlackDirector · Also traded VIAV in the last 90 days
Jeffrey NiewPresident & CEO · Also traded KN in the last 90 days
Joanne SolomonDirector · Also traded VIAV in the last 90 days
John S. AndersonSenior Vice President & CFO · Also traded KN in the last 90 days