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 151-180 of 981
Date 23 Jun 2026
Symbol AMKRAmkor Technology Inc
Insider CAROLIN, ROGER ANTHONYDirector
Side Acquisition
Shares 9
Value 0
Industry Semiconductor Equipment & Materials
Date 23 Jun 2026
Symbol AMKRAmkor Technology Inc
Insider CAROLIN, ROGER ANTHONYDirector
Side Acquisition
Shares 3
Value 0
Industry Semiconductor Equipment & Materials
Date 23 Jun 2026
Symbol AMKRAmkor Technology Inc
Insider CAROLIN, ROGER ANTHONYDirector
Side Acquisition
Shares 8
Value 0
Industry Semiconductor Equipment & Materials
Date 23 Jun 2026
Symbol AMKRAmkor Technology Inc
Insider CHURCHILL, WINSTON JDirector
Side Acquisition
Shares 3
Value 0
Industry Semiconductor Equipment & Materials
Date 23 Jun 2026
Symbol AMKRAmkor Technology Inc
Insider KIM, SUSAN YDirector, 10% Owner, Member of 10% owner group (5)
Side Acquisition
Shares 3
Value 0
Industry Semiconductor Equipment & Materials
Date 23 Jun 2026
Symbol AMKRAmkor Technology Inc
Insider LIAO, DANIEL JLDirector
Side Acquisition
Shares 9
Value 0
Industry Semiconductor Equipment & Materials
Date 23 Jun 2026
Symbol AMKRAmkor Technology Inc
Insider LIAO, DANIEL JLDirector
Side Acquisition
Shares 3
Value 0
Industry Semiconductor Equipment & Materials
Date 23 Jun 2026
Symbol AMKRAmkor Technology Inc
Insider MCCOURT, MARYFRANCESDirector
Side Acquisition
Shares 8
Value 0
Industry Semiconductor Equipment & Materials
Date 23 Jun 2026
Symbol AMKRAmkor Technology Inc
Insider MCCOURT, MARYFRANCESDirector
Side Acquisition
Shares 3
Value 0
Industry Semiconductor Equipment & Materials
Date 23 Jun 2026
Symbol AMKRAmkor Technology Inc
Insider MORSE, ROBERT RANDOLPHDirector
Side Acquisition
Shares 9
Value 0
Industry Semiconductor Equipment & Materials
Date 23 Jun 2026
Symbol AMKRAmkor Technology Inc
Insider MORSE, ROBERT RANDOLPHDirector
Side Acquisition
Shares 8
Value 0
Industry Semiconductor Equipment & Materials
Date 23 Jun 2026
Symbol AMKRAmkor Technology Inc
Insider MORSE, ROBERT RANDOLPHDirector
Side Acquisition
Shares 3
Value 0
Industry Semiconductor Equipment & Materials
Date 23 Jun 2026
Symbol AMKRAmkor Technology Inc
Insider RUTTEN, GUILLAUME MARIE JEANDirector
Side Acquisition
Shares 3
Value 0
Industry Semiconductor Equipment & Materials
Date 23 Jun 2026
Symbol AMKRAmkor Technology Inc
Insider TILY, GIL C.Director
Side Acquisition
Shares 3
Value 0
Industry Semiconductor Equipment & Materials
Date 23 Jun 2026
Symbol AMKRAmkor Technology Inc
Insider WATSON, DAVID NDirector
Side Acquisition
Shares 3
Value 0
Industry Semiconductor Equipment & Materials
Date 22 Jun 2026
Symbol IPGPIPG Photonics Corporation
Insider AGNES, TANGDirector
Side Disposal
Shares 775
Value 90923
Industry Semiconductor Equipment & Materials
Date 22 Jun 2026
Symbol IPGPIPG Photonics Corporation
Insider AGNES, TANGDirector
Side Disposal
Shares 536
Value 63291
Industry Semiconductor Equipment & Materials
Date 22 Jun 2026
Symbol IPGPIPG Photonics Corporation
Insider AGNES, TANGDirector
Side Disposal
Shares 200
Value 23864
Industry Semiconductor Equipment & Materials
Date 18 Jun 2026
Symbol KLICKulicke and Soffa Industries Inc
Insider WONG, LESTER AInterim CEO and CFO
Side Disposal
Shares 60000
Value 7302552
Industry Semiconductor Equipment & Materials
Date 18 Jun 2026
Symbol AMATApplied Materials Inc
Insider RAJA, PRABU G.President, Semi. Products Grp.
Side Disposal
Shares 10000
Value 6335300
Industry Semiconductor Equipment & Materials
Date 18 Jun 2026
Symbol AEHRAehr Test Systems
Insider OLIPHANT, LAURADirector
Side Disposal
Shares 19
Value 0
Industry Semiconductor Equipment & Materials
Date 17 Jun 2026
Symbol AMBAAmbarella Inc
Insider WANG, FENG-MINGDirector, CEO
Side Disposal
Shares 6204
Value 421065
Industry Semiconductor Equipment & Materials
Date 17 Jun 2026
Symbol AMBAAmbarella Inc
Insider YOUNG, JOHN ALEXANDERCFO
Side Disposal
Shares 3186
Value 216234
Industry Semiconductor Equipment & Materials
Date 17 Jun 2026
Symbol AMBAAmbarella Inc
Insider LEE, CHAN WChief Operations Officer
Side Disposal
Shares 2951
Value 200284
Industry Semiconductor Equipment & Materials
Date 17 Jun 2026
Symbol AMBAAmbarella Inc
Insider JU, CHI-HONGSenior VP, Systems & GM
Side Disposal
Shares 2017
Value 136894
Industry Semiconductor Equipment & Materials
Date 17 Jun 2026
Symbol AMBAAmbarella Inc
Insider YOUNG, JOHN ALEXANDERCFO
Side Disposal
Shares 1847
Value 123712
Industry Semiconductor Equipment & Materials
Date 17 Jun 2026
Symbol AMBAAmbarella Inc
Insider WANG, FENG-MINGDirector, CEO
Side Disposal
Shares 10000
Value 0
Industry Semiconductor Equipment & Materials
Date 16 Jun 2026
Symbol AMATApplied Materials Inc
Insider DICKERSON, GARY EDirector, President and CEO
Side Disposal
Shares 15755
Value 9303643
Industry Semiconductor Equipment & Materials
Date 16 Jun 2026
Symbol AMATApplied Materials Inc
Insider DICKERSON, GARY EDirector, President and CEO
Side Disposal
Shares 13505
Value 8060054
Industry Semiconductor Equipment & Materials
Date 16 Jun 2026
Symbol AMATApplied Materials Inc
Insider DICKERSON, GARY EDirector, President and CEO
Side Disposal
Shares 10411
Value 6165186
Industry Semiconductor Equipment & Materials