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Who

Tunc Doluca

Director

Company insider

Files Form 4 as: Director, Western Digital; Director, Analog Devices; President and CEO, Maxim Integrated Products.

In numbers

Trades disclosed
481
Buys
0
Sells
176
Bought
$0
Sold
$97.6M
Companies
3
Companies where not an officer
2
First trade
3 Feb 2006
Last trade
17 Sep 2026
Last filed
21 Sep 2026

Companies traded

Where they are an officer
Maxim Integrated ProductsDirector, Officer · last 26 Aug 20210 buys · 147 sells
Everywhere else they filed: board seats, 10% stakes, other companies
WDC Western DigitalDirector · Hardware, Devices & Storage · last 17 Sep 20260 buys · 0 sells
ADI Analog DevicesDirector · Semiconductors · last 1 Mar 20230 buys · 29 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
17 Sep 2026filed 21 Sep 2026WDC Western Digitaloption or derivative · Hardware, Devices & StorageSEC FORM 4 Code A—0.562 at $0.00filing
17 Sep 2026filed 21 Sep 2026WDC Western Digitaloption or derivative · Hardware, Devices & StorageSEC FORM 4 Code A—0.56 at $0.00filing
17 Jun 2026filed 22 Jun 2026WDC Western Digitaloption or derivative · Hardware, Devices & StorageSEC FORM 4 Code A—0.334 at $0.00filing
17 Jun 2026filed 22 Jun 2026WDC Western Digitaloption or derivative · Hardware, Devices & StorageSEC FORM 4 Code A—0.33 at $0.00filing
18 Mar 2026filed 19 Mar 2026WDC Western Digitaloption or derivative · Hardware, Devices & StorageSEC FORM 4 Code A—0.65 at $0.00filing
18 Mar 2026filed 19 Mar 2026WDC Western Digitaloption or derivative · Hardware, Devices & StorageSEC FORM 4 Code A—0.65 at $0.00filing
18 Dec 2025filed 22 Dec 2025WDC Western Digitaloption or derivative · Hardware, Devices & StorageSEC FORM 4 Code A—1.13 at $0.00filing
20 Nov 2025filed 21 Nov 2025WDC Western DigitalHardware, Devices & StorageSEC FORM 4 Code A—1,585 at $0.00filing
19 Nov 2025filed 21 Nov 2025WDC Western Digitaloption or derivative · Hardware, Devices & StorageSEC FORM 4 Code M—14.43 at $0.00filing
19 Nov 2025filed 21 Nov 2025WDC Western DigitalHardware, Devices & StorageSEC FORM 4 Code M—14 at $0.00filing
18 Sep 2025filed 22 Sep 2025WDC Western Digitaloption or derivative · Hardware, Devices & StorageSEC FORM 4 Code A—5.2 at $0.00filing
18 Jun 2025filed 23 Jun 2025WDC Western Digitaloption or derivative · Hardware, Devices & StorageSEC FORM 4 Code A—9.22 at $0.00filing
20 Nov 2024filed 22 Nov 2024WDC Western DigitalHardware, Devices & StorageSEC FORM 4 Code A—3,759 at $0.00filing
15 Nov 2023filed 16 Nov 2023WDC Western DigitalHardware, Devices & StorageSEC FORM 4 Code A—5,213 at $0.00filing
1 Mar 2023filed 2 Mar 2023ADI Analog DevicesSemiconductorsSEC FORM 4 Sold$662K3,600 at $183.86filing
1 Mar 2023filed 2 Mar 2023ADI Analog DevicesSemiconductorsSEC FORM 4 Sold$276K1,500 at $183.86filing
15 Feb 2023filed 16 Feb 2023ADI Analog DevicesSemiconductorsSEC FORM 4 Sold$777K4,000 at $194.34filing
15 Feb 2023filed 16 Feb 2023ADI Analog DevicesSemiconductorsSEC FORM 4 Sold$389K2,000 at $194.34filing
2 Feb 2023filed 3 Feb 2023ADI Analog DevicesSemiconductorsSEC FORM 4 Sold$864K4,800 at $180.00filing
2 Feb 2023filed 3 Feb 2023ADI Analog DevicesSemiconductorsSEC FORM 4 Sold$360K2,000 at $180.00filing

Sectors

Technology29
Not placed147

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

Related people

Rick LarsenRepresentative, WA-02 · Also traded ADI in the last 90 days
Vivek JainChief Operations/Tech Officer · Also traded ADI in the last 90 days
Ray StataDirector · Also traded ADI in the last 90 days
Richard C. Puccio Jr.Chief Financial Officer · Also traded ADI in the last 90 days
Katsufumi NakamuraChief Customer Officer · Also traded ADI in the last 90 days
Vincent RocheChair & CEO · Also traded ADI in the last 90 days
Sheldon WhitehouseSenator, RI · Also traded ADI in the last 90 days
Karen GolzDirector · Also traded ADI in the last 90 days