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Who

William R. Jellison

Director

Company insider

Files Form 4 as: Director, Avient; Director, Medtronic plc; Director, Masimo; Director, Anika Therapeutics; VP and CFO, Stryker; Sr. VP & C.F.O., Dentsply Sirona.

In numbers

Trades disclosed
232
Buys
5
Sells
16
Bought
$1.1M
Sold
$18.1M
Companies
6
Companies where not an officer
4
First trade
22 Nov 2005
Last trade
30 Sep 2026
Last filed
2 Oct 2026

Companies traded

Where they are an officer
SYK StrykerOfficer · Medical Devices · last 11 Feb 20150 buys · 0 sells
XRAY Dentsply SironaOfficer · Medical Devices · last 12 Apr 20130 buys · 16 sells
Everywhere else they filed: board seats, 10% stakes, other companies
AVNT AvientDirector · Chemicals · last 30 Sep 20262 buys · 0 sells
MDT Medtronic plcDirector · Medical Devices · last 27 Apr 20262 buys · 0 sells
MasimoDirector · last 11 Aug 20251 buy · 0 sells
ANIK Anika TherapeuticsDirector · Medical Devices · last 20 Jun 20250 buys · 0 sells

Activity over time

1 Nov 2024 – 1 Oct 2026
03Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
30 Sep 2026filed 2 Oct 2026AVNT AvientChemicalsSEC FORM 4 Code A—958 at $0.00filing
30 Jun 2026filed 2 Jul 2026AVNT AvientChemicalsSEC FORM 4 Code A—1,049 at $0.00filing
30 Jun 2026filed 2 Jul 2026AVNT AvientChemicalsSEC FORM 4 Code A—1,049 at $0.00filing
27 Apr 2026filed 29 Apr 2026MDT Medtronic plcMedical DevicesSEC FORM 4 Code A—1,444 at $0.00filing
27 Apr 2026filed 29 Apr 2026MDT Medtronic plcMedical DevicesSEC FORM 4 Code A—1,444 at $0.00filing
31 Mar 2026filed 2 Apr 2026AVNT AvientChemicalsSEC FORM 4 Code A—1,072 at $0.00filing
31 Mar 2026filed 2 Apr 2026AVNT AvientChemicalsSEC FORM 4 Code A—1,072 at $0.00filing
31 Dec 2025filed 5 Jan 2026AVNT AvientChemicalsSEC FORM 4 Code A—1,239 at $0.00filing
31 Dec 2025filed 5 Jan 2026AVNT AvientChemicalsSEC FORM 4 Code A—1,239 at $0.00filing
30 Sep 2025filed 2 Oct 2025AVNT AvientChemicalsSEC FORM 4 Code A—1,192 at $0.00filing
25 Aug 2025filed 25 Aug 2025MDT Medtronic plcMedical DevicesSEC FORM 4 Bought$231K2,500 at $92.37filing
22 Aug 2025filed 25 Aug 2025MDT Medtronic plcMedical DevicesSEC FORM 4 Bought$232K2,500 at $92.73filing
11 Aug 2025filed 12 Aug 2025MasimoSEC FORM 4 Bought$438K3,000 at $145.98filing
30 Jun 2025filed 2 Jul 2025AVNT AvientChemicalsSEC FORM 4 Code A—1,187 at $0.00filing
20 Jun 2025filed 24 Jun 2025ANIK Anika TherapeuticsMedical DevicesSEC FORM 4 Code A—14,164 at $0.00filing
29 Apr 2025filed 2 May 2025Masimooption or derivativeSEC FORM 4 Code M—1,790 at $0.00filing
29 Apr 2025filed 2 May 2025Masimooption or derivativeSEC FORM 4 Code A—1,225 at $0.00filing
29 Apr 2025filed 2 May 2025MasimoSEC FORM 4 Code A—1,790 at $0.00filing
31 Mar 2025filed 2 Apr 2025AVNT AvientChemicalsSEC FORM 4 Code A—1,055 at $0.00filing
31 Dec 2024filed 3 Jan 2025AVNT AvientChemicalsSEC FORM 4 Code A—955 at $0.00filing

News

Sectors

Health Care18
Materials2
Not placed1

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

Related people

Jonathan Jay MazelskyDirector · Director at Dentsply Sirona, filing Form 4 there in the last year
Preston Wendell WellsVP, Chief Financial Officer · VP, Chief Financial Officer at Stryker, filing Form 4 there in the last year
Mary K. BrainerdDirector · Director at Stryker, filing Form 4 there in the last year
Dylan Bram CrottyGroup President · Group President at Stryker, filing Form 4 there in the last year
Ronda E. StrykerDirector · Director at Stryker, filing Form 4 there in the last year
Geoffrey MarthaChairman and CEO · Also traded MDT in the last 90 days
Michael MarinaroEVP, Pres MedSurg and Americas · Also traded MDT in the last 90 days
Harry Skip KiilEVP & President Cardiovascular · Also traded MDT in the last 90 days