Insider Trading & Ownership - Nierenberg David

Real time insider trading transaction history:

  • Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
  • Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
Time period
Insider Trading Transactions for Nierenberg David
Common stock purchase or sale:
Transaction
Date
Reported
DateTime
CompanySymbolInsider
Relationship
Shares
Traded
Average
Price
Total
Amount
Shares
Owned
Filing
2025-03-28
Purchase
2025-03-31
09:30 am
POTBELLY CORPPBPBNierenberg David
Nierenberg Investment Management Company Inc.
10% Owner
22,169$9.36$207,5023,109,471
(Indirect
Direct)
View
2025-01-07
Purchase
2025-01-10
7:45 pm
POTBELLY CORPPBPBNierenberg David
Nierenberg Investment Management Company Inc.
10% Owner
7,600$9.2301$70,1493,087,302
(Indirect
Direct)
View
2024-12-18
Purchase
2024-12-20
4:37 pm
POTBELLY CORPPBPBNierenberg David
Nierenberg Investment Management Company Inc.
10% Owner
4,740$9.3601$44,3673,150
(Indirect)
View
2024-08-05
Purchase
2024-08-07
6:39 pm
POTBELLY CORPPBPBNierenberg Investment Management Company Inc.
Nierenberg David
10% Owner
74,345$6.5317$485,600105,469
(Indirect)
View
2023-12-14
Purchase
2023-12-15
09:31 am
FLOTEK INDUSTRIES INCFTKNierenberg David
Director
19,481$3.72$72,469117,836
(Indirect
Direct)
View
2023-12-11
Purchase
2023-12-13
4:29 pm
FLOTEK INDUSTRIES INCFTKNierenberg David
Director
54,859$3.4486$189,189117,088
(Indirect
Direct)
View
2023-06-07
Sale
2023-06-09
12:58 pm
FLOTEK INDUSTRIES INCFTKNierenberg David
Director
750,000$0.625$468,7502,862,431
(Indirect
Direct)
View
2021-06-15
Sale
2021-06-21
3:30 pm
Houston Wire & Cable COHWCCNierenberg David
Nierenberg Investment Management Company Inc.
Director
10% Owner
2,043,358$0$00
(Indirect)
View
2020-11-30
Purchase
2020-12-02
6:25 pm
FLOTEK INDUSTRIES INCFTKNierenberg David
Director
49,231$2.05$100,924152,569
(Indirect)
View
2020-11-23
Purchase
2020-11-25
4:09 pm
FLOTEK INDUSTRIES INCFTKNierenberg David
Director
149,560$1.99$297,624150,691
(Indirect)
View
2020-10-15
Sale
2020-10-16
5:10 pm
ROSETTA STONE INCRSTNierenberg David
Director
514,493$30$15,434,7900
(Indirect
Direct)
View

Stock options: Exercise, Award, Grant, Conversion
Transaction
Date
Reported
DateTime
Exercisable
Expiration
CompanySymnbolInsider
Relationship
Shares
Traded
Conversion
Price
Shares
Owned
Filing

Ownership
2024-08-07
6:37 pm
N/A
N/A
POTBELLY CORPPBPBNierenberg Investment Management Company Inc.
Nierenberg David
10% Owner
0$03,000,617
(Indirect)
View
2023-07-01
Option Award
2023-07-05
9:32 pm
N/A
N/A
FLOTEK INDUSTRIES INCFTKNierenberg David
Director
241,096$07,459,337
(Direct)
View
2023-01-20
Option Award
2023-01-24
4:46 pm
N/A
N/A
FLOTEK INDUSTRIES INCFTKNierenberg David
Director
13,179$07,968,241
(Direct)
View
2022-08-04
Option Award
2022-08-08
6:26 pm
N/A
N/A
FLOTEK INDUSTRIES INCFTKNierenberg David
Director
165,289$07,955,062
(Direct)
View
2022-03-21
Conversion
2022-03-23
4:30 pm
2022-02-02
2023-02-02
FLOTEK INDUSTRIES INCFTKNierenberg David
Director
5,832,197$0242,656
(Indirect)
View
2021-06-03
Option Award
2021-06-07
6:54 pm
N/A
N/A
FLOTEK INDUSTRIES INCFTKNierenberg David
Director
103,774$04,944,743
(Direct)
View