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 241-270 of 981
Date 12 Jun 2026
Symbol LRCXLam Research Corp
Insider BRANDT, ERICDirector
Side Disposal
Shares 2300
Value 838143
Industry Semiconductor Equipment & Materials
Date 12 Jun 2026
Symbol LRCXLam Research Corp
Insider BRANDT, ERICDirector
Side Disposal
Shares 1906
Value 686446
Industry Semiconductor Equipment & Materials
Date 12 Jun 2026
Symbol AMBAAmbarella Inc
Insider CHEN, YUN-LUNGVP, Business Development and
Side Disposal
Shares 9856
Value 660943
Industry Semiconductor Equipment & Materials
Date 12 Jun 2026
Symbol LRCXLam Research Corp
Insider BRANDT, ERICDirector
Side Disposal
Shares 1600
Value 596944
Industry Semiconductor Equipment & Materials
Date 12 Jun 2026
Symbol LRCXLam Research Corp
Insider BRANDT, ERICDirector
Side Disposal
Shares 1393
Value 497635
Industry Semiconductor Equipment & Materials
Date 12 Jun 2026
Symbol LRCXLam Research Corp
Insider BRANDT, ERICDirector
Side Disposal
Shares 1200
Value 438192
Industry Semiconductor Equipment & Materials
Date 12 Jun 2026
Symbol LRCXLam Research Corp
Insider BRANDT, ERICDirector
Side Disposal
Shares 1100
Value 393778
Industry Semiconductor Equipment & Materials
Date 12 Jun 2026
Symbol AMKRAmkor Technology Inc
Insider CHURCHILL, WINSTON JDirector
Side Disposal
Shares 5000
Value 391000
Industry Semiconductor Equipment & Materials
Date 12 Jun 2026
Symbol LRCXLam Research Corp
Insider BRANDT, ERICDirector
Side Disposal
Shares 819
Value 295831
Industry Semiconductor Equipment & Materials
Date 12 Jun 2026
Symbol LRCXLam Research Corp
Insider BRANDT, ERICDirector
Side Disposal
Shares 300
Value 106713
Industry Semiconductor Equipment & Materials
Date 12 Jun 2026
Symbol AMKRAmkor Technology Inc
Insider CHURCHILL, WINSTON JDirector
Side Acquisition
Shares 5000
Value 96950
Industry Semiconductor Equipment & Materials
Date 12 Jun 2026
Symbol AMKRAmkor Technology Inc
Insider CHURCHILL, WINSTON JDirector
Side Disposal
Shares 5000
Value 0
Industry Semiconductor Equipment & Materials
Date 12 Jun 2026
Symbol AMKRAmkor Technology Inc
Insider KIM, SUSAN YDirector, 10% Owner, Member of 10% owner group (5)
Side Acquisition
Shares 9893
Value 0
Industry Semiconductor Equipment & Materials
Date 12 Jun 2026
Symbol AXTIAXT Inc
Insider YOUNG, MORRIS SDirector, CEO
Side Disposal
Shares 1200
Value 0
Industry Semiconductor Equipment & Materials
Date 12 Jun 2026
Symbol TERTeradyne Inc
Insider HERWECK, PETERDirector
Side Acquisition
Shares 4
Value 0
Industry Semiconductor Equipment & Materials
Date 12 Jun 2026
Symbol TERTeradyne Inc
Insider MADDOCK, ERNEST EDirector
Side Acquisition
Shares 2
Value 0
Industry Semiconductor Equipment & Materials
Date 12 Jun 2026
Symbol TERTeradyne Inc
Insider TUFANO, PAUL JDirector
Side Acquisition
Shares 19
Value 0
Industry Semiconductor Equipment & Materials
Date 11 Jun 2026
Symbol KLACKLA Corporation
Insider WALLACE, RICHARD PPresident and CEO
Side Disposal
Shares 4512
Value 9986725
Industry Semiconductor Equipment & Materials
Date 11 Jun 2026
Symbol LRCXLam Research Corp
Insider BRANDT, ERICDirector
Side Disposal
Shares 6592
Value 2293093
Industry Semiconductor Equipment & Materials
Date 11 Jun 2026
Symbol LRCXLam Research Corp
Insider BRANDT, ERICDirector
Side Disposal
Shares 5717
Value 2074985
Industry Semiconductor Equipment & Materials
Date 11 Jun 2026
Symbol LRCXLam Research Corp
Insider BRANDT, ERICDirector
Side Disposal
Shares 4334
Value 1511396
Industry Semiconductor Equipment & Materials
Date 11 Jun 2026
Symbol LRCXLam Research Corp
Insider BRANDT, ERICDirector
Side Disposal
Shares 3644
Value 1249564
Industry Semiconductor Equipment & Materials
Date 11 Jun 2026
Symbol LRCXLam Research Corp
Insider BRANDT, ERICDirector
Side Disposal
Shares 3442
Value 1193651
Industry Semiconductor Equipment & Materials
Date 11 Jun 2026
Symbol LRCXLam Research Corp
Insider BRANDT, ERICDirector
Side Disposal
Shares 3208
Value 1106503
Industry Semiconductor Equipment & Materials
Date 11 Jun 2026
Symbol VECOVeeco Instruments Inc
Insider WILKERSON, SUSANSVP, GLOBAL SALES & SERVICE
Side Disposal
Shares 15506
Value 1078570
Industry Semiconductor Equipment & Materials
Date 11 Jun 2026
Symbol LRCXLam Research Corp
Insider BRANDT, ERICDirector
Side Disposal
Shares 2832
Value 979419
Industry Semiconductor Equipment & Materials
Date 11 Jun 2026
Symbol LRCXLam Research Corp
Insider BRANDT, ERICDirector
Side Disposal
Shares 2604
Value 943169
Industry Semiconductor Equipment & Materials
Date 11 Jun 2026
Symbol AXTIAXT Inc
Insider CHEN, JESSEDirector
Side Disposal
Shares 9000
Value 796933
Industry Semiconductor Equipment & Materials
Date 11 Jun 2026
Symbol LRCXLam Research Corp
Insider BRANDT, ERICDirector
Side Disposal
Shares 1880
Value 673454
Industry Semiconductor Equipment & Materials
Date 11 Jun 2026
Symbol LRCXLam Research Corp
Insider BRANDT, ERICDirector
Side Disposal
Shares 1895
Value 643826
Industry Semiconductor Equipment & Materials