Insider Transactions by Nierenberg David

Symbol CompanyOwnerRelationshipDateTransactionCost# SharesValue ($)Total SharesFiling
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorDec 14, 2023Buy$3.727482,78347,907Dec 15, 2023, 09:31 AM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorDec 14, 2023Buy$3.7211,94844,447765,150Dec 15, 2023, 09:31 AM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorDec 14, 2023Buy$3.726,78525,240434,580Dec 15, 2023, 09:31 AM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorDec 11, 2023Buy$3.195,25416,760411,305Dec 13, 2023, 04:29 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorDec 13, 2023Buy$3.5311,53640,722427,795Dec 13, 2023, 04:29 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorDec 12, 2023Buy$3.428582,93445,887Dec 13, 2023, 04:29 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorDec 12, 2023Buy$3.426,92323,677732,892Dec 13, 2023, 04:29 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorDec 12, 2023Buy$3.424,95416,943416,259Dec 13, 2023, 04:29 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorDec 13, 2023Buy$3.531,2724,49047,159Dec 13, 2023, 04:29 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorDec 11, 2023Buy$3.193,75211,96945,029Dec 13, 2023, 04:29 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorDec 13, 2023Buy$3.5320,31071,694753,202Dec 13, 2023, 04:29 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorJun 07, 2023Sale$0.63538,920336,8254,355,810Jun 09, 2023, 12:58 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorJun 07, 2023Sale$0.63211,080131,9252,436,303Jun 09, 2023, 12:58 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorNov 30, 2020Buy$2.0537,07075,9933,011,673Dec 02, 2020, 06:25 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorNov 30, 2020Buy$2.0510,28321,0801,520,390Dec 02, 2020, 06:25 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorNov 30, 2020Buy$2.051,8783,850152,569Dec 02, 2020, 06:25 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorNov 23, 2020Buy$1.9916,26032,357150,691Nov 25, 2020, 04:09 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorNov 23, 2020Buy$1.9972,607144,4882,974,603Nov 25, 2020, 04:09 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorNov 23, 2020Buy$1.9960,693120,7791,510,107Nov 25, 2020, 04:09 PM
RSTROSETTA STONE INCNierenberg DavidDirectorOct 15, 2020Option Exercise$30.0013,954418,6200Oct 16, 2020, 05:10 PM
RSTROSETTA STONE INCNierenberg DavidDirectorOct 15, 2020Option Exercise$30.00334,69210,040,7600Oct 16, 2020, 05:10 PM
RSTROSETTA STONE INCNierenberg DavidDirectorOct 15, 2020Option Exercise$30.00165,8474,975,4100Oct 16, 2020, 05:10 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorSep 15, 2020Buy$2.537171,814134,431Sep 15, 2020, 07:11 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorSep 11, 2020Buy$2.4431,35276,4992,858,746Sep 15, 2020, 07:11 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorSep 11, 2020Buy$2.4415,65938,2081,427,813Sep 15, 2020, 07:11 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorSep 15, 2020Buy$2.5315,47339,1472,901,996Sep 15, 2020, 07:11 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorSep 14, 2020Buy$2.511,2873,230133,714Sep 15, 2020, 07:11 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorSep 15, 2020Buy$2.537,72819,5521,449,414Sep 15, 2020, 07:11 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorSep 14, 2020Buy$2.5127,77769,7202,886,523Sep 15, 2020, 07:11 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorSep 14, 2020Buy$2.5113,87334,8211,441,686Sep 15, 2020, 07:11 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorSep 11, 2020Buy$2.441,4523,543132,427Sep 15, 2020, 07:11 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorSep 09, 2020Buy$2.4329,37071,3692,819,501Sep 10, 2020, 04:38 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorSep 09, 2020Buy$2.4314,67035,6481,408,213Sep 10, 2020, 04:38 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorSep 08, 2020Buy$2.40352845129,249Sep 10, 2020, 04:38 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorSep 10, 2020Buy$2.48366908130,975Sep 10, 2020, 04:38 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorSep 08, 2020Buy$2.407,59618,2302,790,131Sep 10, 2020, 04:38 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorSep 10, 2020Buy$2.487,89319,5752,827,394Sep 10, 2020, 04:38 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorSep 08, 2020Buy$2.403,7959,1081,393,543Sep 10, 2020, 04:38 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorSep 10, 2020Buy$2.483,9419,7741,412,154Sep 10, 2020, 04:38 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorSep 09, 2020Buy$2.431,3603,305130,609Sep 10, 2020, 04:38 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorSep 03, 2020Buy$2.395,09512,1771,389,748Sep 03, 2020, 07:34 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorSep 02, 2020Buy$2.404,35210,445128,424Sep 03, 2020, 07:34 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorSep 02, 2020Buy$2.4093,966225,5182,772,333Sep 03, 2020, 07:34 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorSep 02, 2020Buy$2.4046,932112,6371,384,653Sep 03, 2020, 07:34 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorSep 01, 2020Buy$2.3072166124,072Sep 03, 2020, 07:34 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorSep 03, 2020Buy$2.394731,130128,897Sep 03, 2020, 07:34 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorSep 01, 2020Buy$2.301,5533,5722,678,367Sep 03, 2020, 07:34 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorSep 03, 2020Buy$2.3910,20224,3832,782,535Sep 03, 2020, 07:34 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorSep 01, 2020Buy$2.307751,7821,337,721Sep 03, 2020, 07:34 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorAug 24, 2020Buy$2.119,52420,096124,000Aug 24, 2020, 06:21 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorAug 20, 2020Buy$1.85127,809236,4472,350,023Aug 24, 2020, 06:21 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorAug 24, 2020Buy$2.11205,587433,7892,676,814Aug 24, 2020, 06:21 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorAug 20, 2020Buy$1.8553,08598,2071,173,729Aug 24, 2020, 06:21 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorAug 24, 2020Buy$2.11102,681216,6571,336,946Aug 24, 2020, 06:21 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorAug 21, 2020Buy$1.955,61510,949114,476Aug 24, 2020, 06:21 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorAug 21, 2020Buy$1.95121,204236,3482,471,227Aug 24, 2020, 06:21 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorAug 21, 2020Buy$1.9560,536118,0451,234,265Aug 24, 2020, 06:21 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorAug 20, 2020Buy$1.854,1067,596108,861Aug 24, 2020, 06:21 PM
HWCCHouston Wire & Cable CONierenberg DavidDirectorMar 16, 2020Buy$2.00252,800505,6001,314,254Mar 17, 2020, 05:16 PM
HWCCHouston Wire & Cable CONierenberg DavidDirectorMar 16, 2020Buy$2.00115,050230,100664,888Mar 17, 2020, 05:16 PM
HWCCHouston Wire & Cable CONierenberg DavidDirectorMar 16, 2020Buy$2.0031,95063,90064,216Mar 17, 2020, 05:16 PM
RVSBRIVERVIEW BANCORP INCNierenberg DavidDirectorMar 16, 2020Buy$4.9013,86567,939130,869Mar 17, 2020, 10:47 AM
RVSBRIVERVIEW BANCORP INCNierenberg DavidDirectorMar 13, 2020Buy$5.0516,13581,482117,004Mar 17, 2020, 10:47 AM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorMar 12, 2020Buy$0.90151,600136,4402,070,613Mar 13, 2020, 04:57 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorMar 12, 2020Buy$0.9076,45168,8061,044,193Mar 13, 2020, 04:57 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorMar 11, 2020Buy$0.9918,91818,72990,463Mar 13, 2020, 04:57 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorMar 13, 2020Buy$1.017,1467,217104,755Mar 13, 2020, 04:57 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorMar 11, 2020Buy$0.99363,618359,9821,919,013Mar 13, 2020, 04:57 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorMar 13, 2020Buy$1.01151,601153,1172,222,214Mar 13, 2020, 04:57 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorMar 11, 2020Buy$0.99147,069145,598967,742Mar 13, 2020, 04:57 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorMar 13, 2020Buy$1.0176,45177,2161,120,644Mar 13, 2020, 04:57 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorMar 12, 2020Buy$0.907,1466,43197,609Mar 13, 2020, 04:57 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorSep 13, 2019Buy$2.503,3058,26371,279Sep 16, 2019, 05:38 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorSep 16, 2019Buy$2.544,20710,686820,673Sep 16, 2019, 05:38 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorSep 13, 2019Buy$2.5053,667134,1681,543,168Sep 16, 2019, 05:38 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorSep 13, 2019Buy$2.5039,82899,570816,466Sep 16, 2019, 05:38 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorSep 16, 2019Buy$2.5426667671,545Sep 16, 2019, 05:38 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorSep 16, 2019Buy$2.5412,22731,0571,555,395Sep 16, 2019, 05:38 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorSep 11, 2019Buy$2.4062,205149,2921,436,831Sep 12, 2019, 06:21 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorSep 11, 2019Buy$2.4046,164110,794737,551Sep 12, 2019, 06:21 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorSep 10, 2019Buy$2.302,0834,79160,900Sep 12, 2019, 06:21 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorSep 12, 2019Buy$2.453,2437,94567,974Sep 12, 2019, 06:21 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorSep 10, 2019Buy$2.3033,81977,7841,374,626Sep 12, 2019, 06:21 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorSep 12, 2019Buy$2.4552,670129,0421,489,501Sep 12, 2019, 06:21 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorSep 10, 2019Buy$2.3025,09857,725691,387Sep 12, 2019, 06:21 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorSep 12, 2019Buy$2.4539,08795,763776,638Sep 12, 2019, 06:21 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorSep 11, 2019Buy$2.403,8319,19464,731Sep 12, 2019, 06:21 PM
RVSPRIVERVIEW BANCORP INCNierenberg DavidDirectorSep 04, 2019Buy$6.8520,000137,000100,879Sep 04, 2019, 06:12 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorJun 07, 2019Buy$3.572,0757,40858,053Jun 11, 2019, 06:47 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorJun 07, 2019Buy$3.5737,527133,9711,326,982Jun 11, 2019, 06:47 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorJun 07, 2019Buy$3.5741,698148,862650,928Jun 11, 2019, 06:47 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorJun 10, 2019Buy$3.687642,81258,817Jun 11, 2019, 06:47 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorJun 10, 2019Buy$3.6813,82550,8761,340,807Jun 11, 2019, 06:47 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorJun 10, 2019Buy$3.6815,36156,528666,289Jun 11, 2019, 06:47 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorJun 05, 2019Buy$3.4323,07979,1611,244,360Jun 06, 2019, 05:11 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorJun 05, 2019Buy$3.4325,64587,962575,197Jun 06, 2019, 05:11 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorJun 04, 2019Buy$3.462,4638,52252,507Jun 06, 2019, 05:11 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorJun 06, 2019Buy$3.421,0473,58154,830Jun 06, 2019, 05:11 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorJun 04, 2019Buy$3.4644,543154,1191,221,281Jun 06, 2019, 05:11 PM
FTKFLOTEK INDUSTRIES INC/CN/Nierenberg DavidDirectorJun 06, 2019Buy$3.4218,92564,7241,263,285Jun 06, 2019, 05:11 PM