Insider NameBuy/SellCompany NameTickerAmountShares Change
Mar 28, 2025Mar 31, 2025Nierenberg David
10%
BuyPotbelly CorpPBPB$9.36$207,502+0.71%
Jan 07, 2025Jan 11, 2025Nierenberg David
10%
BuyPotbelly CorpPBPB$9.23$70,149+0.25%
Dec 18, 2024Dec 20, 2024Nierenberg David
10%
BuyPotbelly CorpPBPB$9.36$44,367+50.00%
Dec 14, 2023Dec 15, 2023Nierenberg David
Dir
BuyFlotek Industries Inc/cn/FTK$3.72$72,469+1.46%
Dec 11, 2023Dec 13, 2023Nierenberg David
Dir
BuyFlotek Industries Inc/cn/FTK$3.45$189,189+4.05%
Jun 07, 2023Jun 09, 2023Nierenberg David
Dir
SellFlotek Industries Inc/cn/FTK$0.63$468,750-9.41%
Nov 30, 2020Dec 02, 2020Nierenberg David
Dir
BuyFlotek Industries Inc/cn/FTK$2.05$100,924+1.04%
Nov 23, 2020Nov 25, 2020Nierenberg David
Dir
BuyFlotek Industries Inc/cn/FTK$1.99$297,624+3.13%
Sep 11, 2020Sep 15, 2020Nierenberg David
Dir
BuyFlotek Industries Inc/cn/FTK$2.48$286,534+2.42%
Sep 08, 2020Sep 10, 2020Nierenberg David
Dir
BuyFlotek Industries Inc/cn/FTK$2.43$168,761+1.51%
Sep 01, 2020Sep 03, 2020Nierenberg David
Dir
BuyFlotek Industries Inc/cn/FTK$2.4$391,810+3.54%
Aug 20, 2020Aug 24, 2020Nierenberg David
Dir
BuyFlotek Industries Inc/cn/FTK$2$1M+13.85%
Mar 16, 2020Mar 17, 2020Nierenberg David
Dir
10%
BuyHouston Wire & Cable CoHWCC$2$799,600+16.36%
Mar 13, 2020Mar 17, 2020Nierenberg David
Dir
BuyRiverview Bancorp IncRVSB$4.98$149,420+18.65%
Mar 11, 2020Mar 13, 2020Nierenberg David
Dir
BuyFlotek Industries Inc/cn/FTK$0.97$973,536+22.15%
Sep 13, 2019Sep 16, 2019Nierenberg David
Dir
BuyFlotek Industries Inc/cn/FTK$2.51$284,418+4.32%
Sep 10, 2019Sep 12, 2019Nierenberg David
Dir
BuyFlotek Industries Inc/cn/FTK$2.39$642,330+10.05%
Sep 04, 2019Sep 04, 2019Nierenberg David
Dir
BuyRiverview Bancorp IncRVSP$6.85$137,000+16.55%
Jun 07, 2019Jun 11, 2019Nierenberg David
Dir
BuyFlotek Industries Inc/cn/FTK$3.6$400,457+4.96%
Jun 04, 2019Jun 06, 2019Nierenberg David
Dir
BuyFlotek Industries Inc/cn/FTK$3.44$645,610+8.49%
May 30, 2019Jun 03, 2019Nierenberg David
Dir
BuyFlotek Industries Inc/cn/FTK$3.12$316,229+5.23%
May 15, 2019May 17, 2019Nierenberg David
Dir
SellRosetta Stone IncRST$25.6$3M-17.24%
May 10, 2019May 14, 2019Nierenberg David
Dir
SellRosetta Stone IncRST$26.12$2M-13.00%
Mar 13, 2019Mar 15, 2019Nierenberg David
Dir
SellRosetta Stone IncRST$23.06$2M-10.99%
Oct 30, 2018Nov 01, 2018Nierenberg David
Dir
BuyRiverview Bancorp IncRVSP$8.26$72,665+9.81%
May 29, 2018May 30, 2018Nierenberg David
Dir
SellRosetta Stone IncRST$16.55$2M-15.75%
Nov 28, 2017Nov 30, 2017Nierenberg David
Dir
SellRosetta Stone IncRST$12.01$2M-17.35%
Jun 06, 2017Jun 08, 2017Nierenberg David
Dir
SellRosetta Stone IncRST$12.01$162,651-1.16%
Jun 02, 2017Jun 07, 2017Nierenberg David
Dir
SellRosetta Stone IncRST$12.04$684,102-4.64%
May 16, 2017May 18, 2017Nierenberg David
Dir
SellRosetta Stone IncRST$12.01$69,310-0.47%
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