Industry Insider Activity

Semiconductor Equipment & Materials insider activity

Concentrated executive and director transaction evidence across 22 companies, with acquisition/disposal balance, filing cadence, value concentration, and linked company research.

Latest filing 21 Jul 2026 981 filings tracked

Top-level read

Net insider selling

Semiconductor Equipment & Materials shows 285 acquisition filings against 696 disposal filings. The largest stored filing is $35.2M in AMAT by DICKERSON, GARY E.

Net value $-515.8Macquisitions minus disposals
Companies 22with stored filings
Total filings 981stored transaction rows
Acquisition value $22.3M285 acquisitions
Disposal value $538.1M696 disposals
Largest filing $35.2Mreported transaction value

Filing cadence

Last 12 active months
Mar 2026 30
Apr 2026 169
May 2026 320
Jun 2026 357
Jul 2026 103

Acquisitions 29.1% · Disposals 70.9%

Company Reads

Most active company insider tapes

22 shown

Transaction Evidence

Latest filings in Semiconductor Equipment & Materials

Showing 61-90 of 981
Date 2 Jul 2026
Symbol AEHRAehr Test Systems
Insider ERICKSON, GAYNDirector, President and CEO
Side Disposal
Shares 3091
Value 216246
Industry Semiconductor Equipment & Materials
Date 2 Jul 2026
Symbol UCTTUltra Clean Holdings Inc
Insider HARDING, BRIAN EChief Accounting Officer
Side Disposal
Shares 1203
Value 156539
Industry Semiconductor Equipment & Materials
Date 2 Jul 2026
Symbol AEHRAehr Test Systems
Insider SIU, CHRISCFO
Side Disposal
Shares 1139
Value 79684
Industry Semiconductor Equipment & Materials
Date 2 Jul 2026
Symbol UCTTUltra Clean Holdings Inc
Insider HARDING, BRIAN EChief Accounting Officer
Side Disposal
Shares 440
Value 55843
Industry Semiconductor Equipment & Materials
Date 2 Jul 2026
Symbol KLACKLA Corporation
Insider KIRLOSKAR, VIRENDRA ASVP & Chief Accounting Officer
Side Disposal
Shares 196
Value 52075
Industry Semiconductor Equipment & Materials
Date 2 Jul 2026
Symbol AEHRAehr Test Systems
Insider SALAMONE, ALBERTOEVP, PPBI BUSINESS
Side Disposal
Shares 556
Value 38898
Industry Semiconductor Equipment & Materials
Date 2 Jul 2026
Symbol AEHRAehr Test Systems
Insider ENGINEER, ADILChief Operating Officer
Side Disposal
Shares 437
Value 30573
Industry Semiconductor Equipment & Materials
Date 2 Jul 2026
Symbol AEHRAehr Test Systems
Insider ROGERS, VERNONExec VP of Sales & Mktg.
Side Disposal
Shares 337
Value 23577
Industry Semiconductor Equipment & Materials
Date 2 Jul 2026
Symbol AEHRAehr Test Systems
Insider RICHMOND, DONALD P. IICTO
Side Disposal
Shares 311
Value 21758
Industry Semiconductor Equipment & Materials
Date 2 Jul 2026
Symbol AEHRAehr Test Systems
Insider SPORCK, ALISTAIR NVP Contactor Business Unit
Side Disposal
Shares 259
Value 18120
Industry Semiconductor Equipment & Materials
Date 2 Jul 2026
Symbol LRCXLam Research Corp
Insider ARCHER, TIMOTHYPresident and CEO
Side Disposal
Shares 30000
Value 0
Industry Semiconductor Equipment & Materials
Date 1 Jul 2026
Symbol KLACKLA Corporation
Insider WILKINSON, MARY BETHEVP, CLO and Secretary
Side Disposal
Shares 14392
Value 4106038
Industry Semiconductor Equipment & Materials
Date 1 Jul 2026
Symbol AEHRAehr Test Systems
Insider ERICKSON, GAYNDirector, President and CEO
Side Disposal
Shares 22925
Value 1935443
Industry Semiconductor Equipment & Materials
Date 1 Jul 2026
Symbol AMBAAmbarella Inc
Insider WANG, FENG-MINGDirector, CEO
Side Disposal
Shares 16250
Value 1463800
Industry Semiconductor Equipment & Materials
Date 1 Jul 2026
Symbol AMBAAmbarella Inc
Insider JU, CHI-HONGSenior VP, Systems & GM
Side Disposal
Shares 10000
Value 888400
Industry Semiconductor Equipment & Materials
Date 1 Jul 2026
Symbol AEHRAehr Test Systems
Insider ENGINEER, ADILChief Operating Officer
Side Disposal
Shares 2213
Value 186833
Industry Semiconductor Equipment & Materials
Date 1 Jul 2026
Symbol AEHRAehr Test Systems
Insider RICHMOND, DONALD P. IICTO
Side Disposal
Shares 2213
Value 186833
Industry Semiconductor Equipment & Materials
Date 1 Jul 2026
Symbol AEHRAehr Test Systems
Insider ROGERS, VERNONExec VP of Sales & Mktg.
Side Disposal
Shares 2213
Value 186833
Industry Semiconductor Equipment & Materials
Date 1 Jul 2026
Symbol AEHRAehr Test Systems
Insider SIU, CHRISCFO
Side Disposal
Shares 2213
Value 186833
Industry Semiconductor Equipment & Materials
Date 1 Jul 2026
Symbol AEHRAehr Test Systems
Insider SPORCK, ALISTAIR NVP Contactor Business Unit
Side Disposal
Shares 2213
Value 186833
Industry Semiconductor Equipment & Materials
Date 1 Jul 2026
Symbol ICHRIchor Holdings Ltd
Insider RAGSDALE, BRUCEChief Operating Officer
Side Disposal
Shares 1580
Value 176597
Industry Semiconductor Equipment & Materials
Date 1 Jul 2026
Symbol AEHRAehr Test Systems
Insider SALAMONE, ALBERTOEVP, PPBI BUSINESS
Side Disposal
Shares 1453
Value 122670
Industry Semiconductor Equipment & Materials
Date 1 Jul 2026
Symbol AMATApplied Materials Inc
Insider SANDERS, ADAMCorp. Controller & CAO
Side Disposal
Shares 125
Value 81364
Industry Semiconductor Equipment & Materials
Date 1 Jul 2026
Symbol TERTeradyne Inc
Insider JOHNSON, MERCEDESDirector
Side Disposal
Shares 167
Value 76820
Industry Semiconductor Equipment & Materials
Date 1 Jul 2026
Symbol ATOMAtomera Inc
Insider MEARS, ROBERT JChief Technology Officer
Side Disposal
Shares 1000
Value 8400
Industry Semiconductor Equipment & Materials
Date 1 Jul 2026
Symbol AEHRAehr Test Systems
Insider DANESH, FARIBADirector
Side Acquisition
Shares 1658
Value 0
Industry Semiconductor Equipment & Materials
Date 1 Jul 2026
Symbol AEHRAehr Test Systems
Insider ENGINEER, ADILChief Operating Officer
Side Acquisition
Shares 6165
Value 0
Industry Semiconductor Equipment & Materials
Date 1 Jul 2026
Symbol AEHRAehr Test Systems
Insider ENGINEER, ADILChief Operating Officer
Side Acquisition
Shares 3079
Value 0
Industry Semiconductor Equipment & Materials
Date 1 Jul 2026
Symbol AEHRAehr Test Systems
Insider ERICKSON, GAYNDirector, President and CEO
Side Acquisition
Shares 11899
Value 0
Industry Semiconductor Equipment & Materials
Date 1 Jul 2026
Symbol AEHRAehr Test Systems
Insider ERICKSON, GAYNDirector, President and CEO
Side Acquisition
Shares 35886
Value 0
Industry Semiconductor Equipment & Materials