Insider · CIK 0001040899

Nierenberg David

Reports to the SEC for 18 companies · CAMAS, WA

sec.gov

Transactions

Companies

Filings

CIK

0001040899

Forms 4 and 5

Insider transactions

50 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2025-03-28	PBPBPOTBELLY CORPP Purchase	10% Owner	PPurchase	+22.2K sh	$9.36	+$208K	124,167
2025-01-07	PBPBPOTBELLY CORPP Purchase	10% Owner	PPurchase	+100 sh	$9.24	+$924	101,998
2025-01-07	PBPBPOTBELLY CORPP Purchase	10% Owner	PPurchase	+7,500 sh	$9.23	+$69.2K	101,898
2024-12-18	PBPBPOTBELLY CORPP Purchase	10% Owner	PPurchase	+3,150 sh	$9.34	+$29.4K	3,150
2024-12-18	PBPBPOTBELLY CORPP Purchase	10% Owner	PPurchase	+1,590 sh	$9.40	+$14.9K	1,590
2023-12-14	FTKFLOTEK INDUSTRIES INC/CN/P Purchase	Director	PPurchase	+11.9K sh	$3.72	+$44.4K	765,150
2023-12-14	FTKFLOTEK INDUSTRIES INC/CN/P Purchase	Director	PPurchase	+6,785 sh	$3.72	+$25.2K	434,580
2023-12-14	FTKFLOTEK INDUSTRIES INC/CN/P Purchase	Director	PPurchase	+748 sh	$3.72	+$2,782.56	47,907
2023-12-13	FTKFLOTEK INDUSTRIES INC/CN/P Purchase	Director	PPurchase	+1,272 sh	$3.53	+$4,490.16	47,159
2023-12-13	FTKFLOTEK INDUSTRIES INC/CN/P Purchase	Director	PPurchase	+11.5K sh	$3.53	+$40.7K	427,795
2023-12-13	FTKFLOTEK INDUSTRIES INC/CN/P Purchase	Director	PPurchase	+20.3K sh	$3.53	+$71.7K	753,202
2023-12-12	FTKFLOTEK INDUSTRIES INC/CN/P Purchase	Director	PPurchase	+858 sh	$3.42	+$2,934.36	45,887
2023-12-12	FTKFLOTEK INDUSTRIES INC/CN/P Purchase	Director	PPurchase	+6,923 sh	$3.42	+$23.7K	732,892
2023-12-12	FTKFLOTEK INDUSTRIES INC/CN/P Purchase	Director	PPurchase	+4,954 sh	$3.42	+$16.9K	416,259
2023-12-11	FTKFLOTEK INDUSTRIES INC/CN/P Purchase	Director	PPurchase	+5,254 sh	$3.19	+$16.8K	411,305
2023-12-11	FTKFLOTEK INDUSTRIES INC/CN/P Purchase	Director	PPurchase	+3,752 sh	$3.19	+$12K	45,029
2023-07-01	FTKFLOTEK INDUSTRIES INC/CN/A Award	Director	AAward	+241K sh	—	—	419,564
2023-06-07	FTKFLOTEK INDUSTRIES INC/CN/S Sale	Director	SSale	−539K sh	$0.63	−$337K	4,355,810
2023-06-07	FTKFLOTEK INDUSTRIES INC/CN/S Sale	Director	SSale	−211K sh	$0.63	−$132K	2,436,303
2023-01-20	FTKFLOTEK INDUSTRIES INC/CN/A Award	Director	AAward	+13.2K sh	—	—	178,468
2022-08-04	FTKFLOTEK INDUSTRIES INC/CN/A Award	Director	AAward	+165K sh	—	—	165,289
2022-03-21	FTKFLOTEK INDUSTRIES INC/CN/C Conversion	Director	CConversion	+1.04M sh	—	—	2,595,383
2022-03-21	FTKFLOTEK INDUSTRIES INC/CN/ · Convertible DebtC Conversion	Director	CConversion	—	—	—	—
2022-03-21	FTKFLOTEK INDUSTRIES INC/CN/ · Convertible DebtC Conversion	Director	CConversion	—	—	—	—
2022-03-21	FTKFLOTEK INDUSTRIES INC/CN/ · Convertible DebtC Conversion	Director	CConversion	—	—	—	—
2022-03-21	FTKFLOTEK INDUSTRIES INC/CN/C Conversion	Director	CConversion	+76.8K sh	—	—	242,656
2022-03-21	FTKFLOTEK INDUSTRIES INC/CN/C Conversion	Director	CConversion	+1.68M sh	—	—	4,795,960
2022-02-02	FTKFLOTEK INDUSTRIES INC/CN/ · Convertible DebtP Purchase	Director	PPurchase	+94.8K sh	$0.87	+$82.5K	—
2022-02-02	FTKFLOTEK INDUSTRIES INC/CN/ · Convertible DebtP Purchase	Director	PPurchase	+2.07M sh	$0.87	+$1.8M	—
2022-02-02	FTKFLOTEK INDUSTRIES INC/CN/ · Convertible DebtP Purchase	Director	PPurchase	+1.28M sh	$0.87	+$1.11M	—
2021-06-15	Houston Wire & Cable COD Disposition to Issuer	Director, 10% Owner	DDisposition to Issuer	−1.31M sh	—	—	0
2021-06-15	Houston Wire & Cable COD Disposition to Issuer	Director, 10% Owner	DDisposition to Issuer	−64.2K sh	—	—	0
2021-06-15	Houston Wire & Cable COD Disposition to Issuer	Director, 10% Owner	DDisposition to Issuer	−665K sh	—	—	0
2021-06-03	FTKFLOTEK INDUSTRIES INC/CN/A Award	Director	AAward	+104K sh	—	—	260,111
2020-11-30	FTKFLOTEK INDUSTRIES INC/CN/P Purchase	Director	PPurchase	+10.3K sh	$2.05	+$21.1K	1,520,390
2020-11-30	FTKFLOTEK INDUSTRIES INC/CN/P Purchase	Director	PPurchase	+37.1K sh	$2.05	+$76K	3,011,673
2020-11-30	FTKFLOTEK INDUSTRIES INC/CN/P Purchase	Director	PPurchase	+1,878 sh	$2.05	+$3,849.9	152,569
2020-11-23	FTKFLOTEK INDUSTRIES INC/CN/P Purchase	Director	PPurchase	+16.3K sh	$1.99	+$32.4K	150,691
2020-11-23	FTKFLOTEK INDUSTRIES INC/CN/P Purchase	Director	PPurchase	+60.7K sh	$1.99	+$121K	1,510,107
2020-11-23	FTKFLOTEK INDUSTRIES INC/CN/P Purchase	Director	PPurchase	+72.6K sh	$1.99	+$144K	2,974,603
2020-10-15	ROSETTA STONE INCStock Option (right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−1,771 sh	—	—	0
2020-10-15	ROSETTA STONE INCStock Option (right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−14.5K sh	—	—	0
2020-10-15	ROSETTA STONE INCStock Option (right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−9,766 sh	—	—	0
2020-10-15	ROSETTA STONE INCD Disposition to Issuer	Director	DDisposition to Issuer	−335K sh	$30.00	−$10M	0
2020-10-15	ROSETTA STONE INCStock Option (right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−16.2K sh	—	—	0
2020-10-15	ROSETTA STONE INCRestricted Stock UnitD Disposition to Issuer	Director	DDisposition to Issuer	−45.3K sh	—	—	0
2020-10-15	ROSETTA STONE INCStock Option (right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−18.3K sh	—	—	0
2020-10-15	ROSETTA STONE INCD Disposition to Issuer	Director	DDisposition to Issuer	−14K sh	$30.00	−$419K	0
2020-10-15	ROSETTA STONE INCD Disposition to Issuer	Director	DDisposition to Issuer	−166K sh	$30.00	−$4.98M	0
2020-10-15	ROSETTA STONE INCStock Option (right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−5,076 sh	—	—	0

Recent filings

Accepted (ET)
Mar 314
Nierenberg David0001013594-25-000434
SEC(opens sec.gov)
Jan 104
Nierenberg David0001013594-25-000034
SEC(opens sec.gov)
Dec 204
Nierenberg David0001013594-24-001027
SEC(opens sec.gov)
Dec 154
Nierenberg David0000928054-23-000225
SEC(opens sec.gov)
Dec 134
Nierenberg David0000928054-23-000223
SEC(opens sec.gov)
Jul 54
Nierenberg David0000928054-23-000128
SEC(opens sec.gov)
Jun 94
Nierenberg David0000928054-23-000101
SEC(opens sec.gov)
Jan 244
Nierenberg David0000928054-23-000013
SEC(opens sec.gov)

Companies

Address

19605 NE 8TH STREET

CAMAS, WA, 98607