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