Dennis Thomas St Insider Trading Transactions

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General | Insider Transactions | Monthly Overview

Get the latest insider transactions of Dennis Thomas St. Dennis Thomas St is Senior Vice President in APPLIED MATERIALS INC /DE ($AMAT) and Director in VEECO INSTRUMENTS INC ($VECO) and Director in MATTSON TECHNOLOGY INC ($MTSN) and Director in AXCELIS TECHNOLOGIES INC ($ACLS) and CEO in FORMFACTOR INC ($FORM) and Director in FORMFACTOR INC ($FORM) and EXECUTIVE CHAIRMAN in FORMFACTOR INC ($FORM).

Latest Insider Trading Transactions of Dennis Thomas St

1 Week2 Weeks1 Month3 Months6 Months1 Year2 Years
No. of Purchases0000000
Value of Purchases ($)0000000
No. of Sales0000000
Value of Sales ($)0000000

Sentiment: All, AMAT, ACLS, FORM, MTSN, VECO

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DateTickerCompanyOwnerRelationship Transaction Code Cost ($) Shares Transaction Value ($) Total Shares % Holdings
May 10 2021VECOVEECO INSTRUMENTS ...St Dennis ThomasDirectorGrantA0.005,378043,33838 K to 43.3 K (+14.17 %)
May 19 2020FORMFORMFACTOR INCSt Dennis ThomasDirectorOption ExerciseA0.007,09807,098
May 19 2020FORMFORMFACTOR INCSt Dennis ThomasDirectorOption ExerciseM0.009,00000
May 19 2020FORMFORMFACTOR INCSt Dennis ThomasDirectorBuyM0.009,000039,00030 K to 39 K (+30.00 %)
May 15 2020ACLSAXCELIS TECHNOLOGI ...St Dennis ThomasDirectorGrantA0.006,881025,93919.1 K to 25.9 K (+36.11 %)
May 12 2020FORMFORMFACTOR INCSt Dennis ThomasDirectorSellS24.786,000148,68730,00036 K to 30 K (-16.67 %)
May 11 2020ACLSAXCELIS TECHNOLOGI ...St Dennis ThomasDirectorSellS26.616,000159,66019,05825.1 K to 19.1 K (-23.94 %)
May 08 2020VECOVEECO INSTRUMENTS ...St Dennis ThomasDirectorGrantA0.0010,389037,96027.6 K to 38 K (+37.68 %)
May 08 2020VECOVEECO INSTRUMENTS ...St Dennis ThomasDirectorGrantA0.0010,389037,96027.6 K to 38 K (+37.68 %)
Feb 12 2020FORMFORMFACTOR INCSt Dennis ThomasDirectorSellS25.9410,000259,37936,00046 K to 36 K (-21.74 %)
Feb 10 2020ACLSAXCELIS TECHNOLOGI ...St Dennis ThomasDirectorSellS28.278,500240,29525,05833.6 K to 25.1 K (-25.33 %)
Nov 22 2019FORMFORMFACTOR INCSt Dennis ThomasDirectorSellS22.685,000113,41546,00051 K to 46 K (-9.80 %)
Aug 21 2019FORMFORMFACTOR INCSt Dennis ThomasDirectorSellS17.263,00051,77751,00054 K to 51 K (-5.56 %)
May 21 2019FORMFORMFACTOR INCSt Dennis ThomasDirectorOption ExerciseM0.009,00000
May 21 2019FORMFORMFACTOR INCSt Dennis ThomasDirectorOption ExerciseA0.009,00009,000
May 21 2019FORMFORMFACTOR INCSt Dennis ThomasDirectorBuyM0.009,000054,00045 K to 54 K (+20.00 %)
May 15 2019ACLSAXCELIS TECHNOLOGI ...St Dennis ThomasDirectorGrantA0.006,232033,55827.3 K to 33.6 K (+22.81 %)
May 08 2019VECOVEECO INSTRUMENTS ...St Dennis ThomasDirectorGrantA0.009,331027,57118.2 K to 27.6 K (+51.16 %)
Feb 21 2019FORMFORMFACTOR INCSt Dennis ThomasDirectorSellS15.998,000127,89545,00053 K to 45 K (-15.09 %)
Feb 20 2019ACLSAXCELIS TECHNOLOGI ...St Dennis ThomasDirectorSellS22.435,000112,15027,32632.3 K to 27.3 K (-15.47 %)
May 30 2018FORMFORMFACTOR INCSt Dennis ThomasDirectorOption ExerciseM0.003,33400
May 30 2018FORMFORMFACTOR INCSt Dennis ThomasDirectorOption ExerciseM0.009,00000
May 30 2018FORMFORMFACTOR INCSt Dennis ThomasDirectorBuyM0.003,334053,00049.7 K to 53 K (+6.71 %)
May 30 2018FORMFORMFACTOR INCSt Dennis ThomasDirectorBuyM0.009,000049,66640.7 K to 49.7 K (+22.13 %)
May 22 2018FORMFORMFACTOR INCSt Dennis ThomasDirectorOption ExerciseA0.009,00009,000
May 17 2018ACLSAXCELIS TECHNOLOGI ...St Dennis ThomasDirectorGrantA0.005,637032,32626.7 K to 32.3 K (+21.12 %)
May 04 2018VECOVEECO INSTRUMENTS ...St Dennis ThomasDirectorGrantA0.007,643018,24010.6 K to 18.2 K (+72.12 %)
Mar 07 2018FORMFORMFACTOR INCSt Dennis ThomasDirectorOption ExerciseM10.3720,867216,3910
Mar 07 2018FORMFORMFACTOR INCSt Dennis ThomasDirectorSellS13.5820,867283,29040,66661.5 K to 40.7 K (-33.91 %)
Mar 07 2018FORMFORMFACTOR INCSt Dennis ThomasDirectorBuyM10.3720,867216,39161,53340.7 K to 61.5 K (+51.31 %)
Jun 15 2017FORMFORMFACTOR INCSt Dennis ThomasDirectorOption ExerciseM10.374004,14820,867
Jun 15 2017FORMFORMFACTOR INCSt Dennis ThomasDirectorOption ExerciseM10.374004,14820,867
Jun 15 2017FORMFORMFACTOR INCSt Dennis ThomasDirectorSellS13.934005,57040,66641.1 K to 40.7 K (-0.97 %)
Jun 15 2017FORMFORMFACTOR INCSt Dennis ThomasDirectorSellS13.934005,57040,66641.1 K to 40.7 K (-0.97 %)
Jun 15 2017FORMFORMFACTOR INCSt Dennis ThomasDirectorBuyM10.374004,14841,06640.7 K to 41.1 K (+0.98 %)
Jun 15 2017FORMFORMFACTOR INCSt Dennis ThomasDirectorBuyM10.374004,14841,06640.7 K to 41.1 K (+0.98 %)
Jun 06 2017FORMFORMFACTOR INCSt Dennis ThomasDirectorOption ExerciseM10.37128,7331,334,96121,267
Jun 06 2017FORMFORMFACTOR INCSt Dennis ThomasDirectorOption ExerciseA0.009,00009,000
Jun 06 2017FORMFORMFACTOR INCSt Dennis ThomasDirectorSellS14.58128,7331,876,43840,666169.4 K to 40.7 K (-75.99 %)
Jun 06 2017FORMFORMFACTOR INCSt Dennis ThomasDirectorBuyM10.37128,7331,334,961169,39940.7 K to 169.4 K (+316.56 %)
Jun 06 2017FORMFORMFACTOR INCSt Dennis ThomasDirectorSellS14.63156,6002,291,55940,666197.3 K to 40.7 K (-79.39 %)
May 31 2017FORMFORMFACTOR INCSt Dennis ThomasDirectorOption ExerciseM0.003,33303,334
May 31 2017FORMFORMFACTOR INCSt Dennis ThomasDirectorBuyM0.003,3330197,266193.9 K to 197.3 K (+1.72 %)
May 23 2017FORMFORMFACTOR INCSt Dennis ThomasDirectorOption ExerciseM0.009,00000
May 23 2017FORMFORMFACTOR INCSt Dennis ThomasDirectorGrantA0.009,0000193,933184.9 K to 193.9 K (+4.87 %)
May 17 2017ACLSAXCELIS TECHNOLOGI ...St Dennis ThomasDirectorGrantA0.003,802026,68922.9 K to 26.7 K (+16.61 %)
May 15 2017FORMFORMFACTOR INCSt Dennis ThomasDirectorOption ExerciseM7.5213,962104,9940
May 15 2017FORMFORMFACTOR INCSt Dennis ThomasDirectorSellS13.5513,962189,200184,933198.9 K to 184.9 K (-7.02 %)
May 15 2017FORMFORMFACTOR INCSt Dennis ThomasDirectorBuyM7.5213,962104,994198,895184.9 K to 198.9 K (+7.55 %)
May 09 2017FORMFORMFACTOR INCSt Dennis ThomasDirectorOption ExerciseM7.5262,088466,90213,962
May 09 2017FORMFORMFACTOR INCSt Dennis ThomasDirectorOption ExerciseM0.0020,00000
May 09 2017FORMFORMFACTOR INCSt Dennis ThomasDirectorSellS13.7762,088854,852184,933247 K to 184.9 K (-25.13 %)
May 09 2017FORMFORMFACTOR INCSt Dennis ThomasDirectorBuyM7.5262,088466,902247,021184.9 K to 247 K (+33.57 %)
May 09 2017FORMFORMFACTOR INCSt Dennis ThomasDirectorBuyM0.0020,0000184,933164.9 K to 184.9 K (+12.13 %)
May 09 2017VECOVEECO INSTRUMENTS ...St Dennis ThomasDirectorGrantA33.403,592119,97310,5977 K to 10.6 K (+51.28 %)
Feb 24 2017FORMFORMFACTOR INCSt Dennis ThomasDirectorOption ExerciseM7.522,70020,30476,050
Feb 24 2017FORMFORMFACTOR INCSt Dennis ThomasDirectorOption ExerciseM7.5217,597132,32978,750
Feb 24 2017FORMFORMFACTOR INCSt Dennis ThomasDirectorSellS11.232,70030,308164,933167.6 K to 164.9 K (-1.61 %)
Feb 24 2017FORMFORMFACTOR INCSt Dennis ThomasDirectorBuyM7.522,70020,304167,633164.9 K to 167.6 K (+1.64 %)
Feb 24 2017FORMFORMFACTOR INCSt Dennis ThomasDirectorSellS11.7517,597206,765164,933182.5 K to 164.9 K (-9.64 %)
Feb 24 2017FORMFORMFACTOR INCSt Dennis ThomasDirectorBuyM7.5217,597132,329182,530164.9 K to 182.5 K (+10.67 %)
Feb 15 2017FORMFORMFACTOR INCSt Dennis ThomasDirectorOption ExerciseM7.5258,170437,438293,029
Feb 15 2017FORMFORMFACTOR INCSt Dennis ThomasDirectorOption ExerciseM7.5280,397604,585351,199
Feb 15 2017FORMFORMFACTOR INCSt Dennis ThomasDirectorOption ExerciseM7.5218,404138,398431,596
Feb 15 2017FORMFORMFACTOR INCSt Dennis ThomasDirectorSellS12.1358,170705,678164,933223.1 K to 164.9 K (-26.07 %)
Feb 15 2017FORMFORMFACTOR INCSt Dennis ThomasDirectorBuyM7.5258,170437,438223,103164.9 K to 223.1 K (+35.27 %)
Feb 15 2017FORMFORMFACTOR INCSt Dennis ThomasDirectorSellS12.0180,397965,222164,933245.3 K to 164.9 K (-32.77 %)
Feb 15 2017FORMFORMFACTOR INCSt Dennis ThomasDirectorBuyM7.5280,397604,585245,330164.9 K to 245.3 K (+48.75 %)
Feb 15 2017FORMFORMFACTOR INCSt Dennis ThomasDirectorSellS12.1518,404223,649164,933183.3 K to 164.9 K (-10.04 %)
Feb 15 2017FORMFORMFACTOR INCSt Dennis ThomasDirectorBuyM7.5218,404138,398183,337164.9 K to 183.3 K (+11.16 %)
Aug 09 2016FORMFORMFACTOR INCSt Dennis ThomasDirectorSellS10.5123,120242,896164,933188.1 K to 164.9 K (-12.29 %)
Jun 02 2016FORMFORMFACTOR INCSt Dennis ThomasDirectorOption ExerciseM0.003,33306,667
Jun 02 2016FORMFORMFACTOR INCSt Dennis ThomasDirectorBuyM0.003,3330188,053184.7 K to 188.1 K (+1.80 %)
May 23 2016FORMFORMFACTOR INCSt Dennis ThomasDirectorOption ExerciseA0.009,00009,000
May 17 2016ACLSAXCELIS TECHNOLOGI ...St Dennis ThomasDirectorGrantA0.0030,545091,54561 K to 91.5 K (+50.07 %)
May 11 2016MTSNMATTSON TECHNOLOGY ...St Dennis ThomasDirectorOption ExerciseD2.9325,00073,2500
May 11 2016MTSNMATTSON TECHNOLOGY ...St Dennis ThomasDirectorOption ExerciseD2.1212,50026,50025,000
May 11 2016MTSNMATTSON TECHNOLOGY ...St Dennis ThomasDirectorSellD3.807,37528,02507.4 K to 0 (-100.00 %)
May 11 2016MTSNMATTSON TECHNOLOGY ...St Dennis ThomasDirectorSellD3.8026,12599,2757,37533.5 K to 7.4 K (-77.99 %)
May 09 2016FORMFORMFACTOR INCSt Dennis ThomasDirectorOption ExerciseM0.0020,00000
May 09 2016FORMFORMFACTOR INCSt Dennis ThomasDirectorOption ExerciseM0.0020,000020,000
May 09 2016FORMFORMFACTOR INCSt Dennis ThomasDirectorBuyM0.0020,0000184,720164.7 K to 184.7 K (+12.14 %)
May 09 2016FORMFORMFACTOR INCSt Dennis ThomasDirectorBuyM0.0020,0000164,720144.7 K to 164.7 K (+13.82 %)
May 06 2016VECOVEECO INSTRUMENTS ...St Dennis ThomasDirectorGrantA17.137,005119,9967,0050 to 7 K
May 03 2016FORMFORMFACTOR INCSt Dennis ThomasDirectorOption ExerciseM0.00116,60000
May 03 2016FORMFORMFACTOR INCSt Dennis ThomasDirectorBuyM0.00116,6000144,72028.1 K to 144.7 K (+414.65 %)
Apr 08 2016FORMFORMFACTOR INCSt Dennis ThomasDirectorOption ExerciseA0.00116,6000116,600
Jul 16 2015ACLSAXCELIS TECHNOLOGI ...St Dennis ThomasDirectorGrantA0.0016,000061,00045 K to 61 K (+35.56 %)
Jun 01 2015FORMFORMFACTOR INCSt Dennis ThomasEXECUTIVE CHAIRMANOption ExerciseA0.0010,000070,000
May 29 2015MTSNMATTSON TECHNOLOGY ...St Dennis ThomasDirectorOption ExerciseA3.8512,50048,12550,000
May 29 2015MTSNMATTSON TECHNOLOGY ...St Dennis ThomasDirectorGrantA0.0012,500033,50021 K to 33.5 K (+59.52 %)
May 21 2015FORMFORMFACTOR INCSt Dennis ThomasEXECUTIVE CHAIRMANSellS8.91130,0001,158,87228,120158.1 K to 28.1 K (-82.22 %)
May 18 2015ACLSAXCELIS TECHNOLOGI ...St Dennis ThomasDirectorGrantA0.0045,000045,0000 to 45 K
May 08 2015FORMFORMFACTOR INCSt Dennis ThomasEXECUTIVE CHAIRMANOption ExerciseM0.0020,000060,000
May 08 2015FORMFORMFACTOR INCSt Dennis ThomasEXECUTIVE CHAIRMANSellS8.2810,60687,851158,120168.7 K to 158.1 K (-6.29 %)
May 08 2015FORMFORMFACTOR INCSt Dennis ThomasEXECUTIVE CHAIRMANBuyM0.0020,0000168,726148.7 K to 168.7 K (+13.45 %)
May 07 2015FORMFORMFACTOR INCSt Dennis ThomasEXECUTIVE CHAIRMANOption ExerciseM0.0020,000080,000
May 07 2015FORMFORMFACTOR INCSt Dennis ThomasEXECUTIVE CHAIRMANSellS8.2510,60787,519148,726159.3 K to 148.7 K (-6.66 %)
May 07 2015FORMFORMFACTOR INCSt Dennis ThomasEXECUTIVE CHAIRMANBuyM0.0020,0000159,333139.3 K to 159.3 K (+14.35 %)
May 06 2015FORMFORMFACTOR INCSt Dennis ThomasEXECUTIVE CHAIRMANOption ExerciseM0.005,0000100,000
May 06 2015FORMFORMFACTOR INCSt Dennis ThomasEXECUTIVE CHAIRMANOption ExerciseM0.00175,00000
May 06 2015FORMFORMFACTOR INCSt Dennis ThomasEXECUTIVE CHAIRMANOption ExerciseA0.00175,0000175,000
May 06 2015FORMFORMFACTOR INCSt Dennis ThomasEXECUTIVE CHAIRMANSellS8.4292,782781,512139,333232.1 K to 139.3 K (-39.97 %)
May 06 2015FORMFORMFACTOR INCSt Dennis ThomasEXECUTIVE CHAIRMANBuyM0.00175,0000232,11557.1 K to 232.1 K (+306.40 %)
May 06 2015FORMFORMFACTOR INCSt Dennis ThomasEXECUTIVE CHAIRMANBuyM0.005,000057,11552.1 K to 57.1 K (+9.59 %)
Mar 20 2015MTSNMATTSON TECHNOLOGY ...St Dennis ThomasDirectorOption ExerciseA2.1212,50026,50037,500
Mar 20 2015MTSNMATTSON TECHNOLOGY ...St Dennis ThomasDirectorGrantA0.0012,500021,0008.5 K to 21 K (+147.06 %)
Mar 09 2015FORMFORMFACTOR INCSt Dennis ThomasCEOSellS9.1127,500250,40752,11579.6 K to 52.1 K (-34.54 %)
Mar 09 2015FORMFORMFACTOR INCSt Dennis ThomasCEOSellS9.102,50022,75379,61582.1 K to 79.6 K (-3.04 %)
Mar 09 2015FORMFORMFACTOR INCSt Dennis ThomasCEOSellS9.1860,000550,84282,115142.1 K to 82.1 K (-42.22 %)
Mar 03 2015FORMFORMFACTOR INCSt Dennis ThomasCEOOption ExerciseM0.0035,49400
Mar 03 2015FORMFORMFACTOR INCSt Dennis ThomasCEOSellS10.1513,548137,458142,115155.7 K to 142.1 K (-8.70 %)
Mar 03 2015FORMFORMFACTOR INCSt Dennis ThomasCEOBuyM0.0035,4940155,663120.2 K to 155.7 K (+29.54 %)
Sep 08 2006AMATAPPLIED MATERIALS ...St Dennis ThomasSenior Vice Preside ...Payment of ExerciseF16.904,46975,52645,98350.5 K to 46 K (-8.86 %)
Dec 15 2005AMATAPPLIED MATERIALS ...St Dennis ThomasSenior Vice Preside ...Option ExerciseA19.20200,0003,840,000200,000
Dec 15 2005AMATAPPLIED MATERIALS ...St Dennis ThomasSenior Vice Preside ...GrantA0.0050,000050,0000 to 50 K

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