Insider · CIK 0001040899
David Nierenberg
Files at FTK (FLOTEK INDUSTRIES INC/CN/), PBPB (POTBELLY CORP). First filing Dec 13, 2023, latest Dec 20, 2024.
In brief
David Nierenberg files SEC Form 4 as 10% owner and director at FTK (FLOTEK INDUSTRIES INC/CN/), and also at PBPB (POTBELLY CORP). Since Dec 13, 2023, David Nierenberg has reported 3 open-market buys worth $306k and 0 open-market sells worth $0, the latest filed on Dec 20, 2024.
A track record needs three past buys with six months of prices behind them; David Nierenberg has 0, so none is measured yet.
The newest scored trade: bought $44k of PBPB on Dec 18, 2024, filed Dec 20, 2024, scored 6 (weak), under a 10b5-1 plan.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
FTK: FLOTEK INDUSTRIES INC/CN/
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 6Weak | POTBELLY CORP | $44k 4,740 shares | - | - | |
| 36Weak | FTKbuy FLOTEK INDUSTRIES INC/CN/ | $72k 19,481 shares | +5% | +18% from low-56% from high | |
| 56Moderate | FLOTEK INDUSTRIES INC/CN/ | $189k 54,859 shares | +14% | +3% from low-62% from high |
Transactions
Every row this insider has filed, 13 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Dec 18, 2024 | PBPB POTBELLY CORP | POpen-market purchase Common Stockindirect: By Children10b5-1 | +1,590 | $9.40 | $15k | 1,590 | Dec 20, 2024 |
| Dec 18, 2024 | PBPB POTBELLY CORP | POpen-market purchase Common Stockindirect: By Spouse10b5-1 | +3,150 | $9.34 | $29k | 3,150 | Dec 20, 2024 |
| Dec 14, 2023 | FTK FLOTEK INDUSTRIES INC/CN/ | POpen-market purchase Common Sharesindirect: By The D3 Family Fund, LP | +6,785 | $3.72 | $25k | 434,580 | Dec 15, 2023 |
| Dec 14, 2023 | FTK FLOTEK INDUSTRIES INC/CN/ | POpen-market purchase Common Sharesindirect: By The D3 Family Bulldog Fund, LP | +11,948 | $3.72 | $44k | 765,150 | Dec 15, 2023 |
| Dec 14, 2023 | FTK FLOTEK INDUSTRIES INC/CN/ | POpen-market purchase Common Sharesindirect: By Haredale Ltd. | +748 | $3.72 | $2,783 | 47,907 | Dec 15, 2023 |
| Dec 11, 2023 | FTK FLOTEK INDUSTRIES INC/CN/ | POpen-market purchase Common Sharesindirect: By The D3 Family Fund, LP | +5,254 | $3.19 | $17k | 411,305 | Dec 13, 2023 |
| Dec 11, 2023 | FTK FLOTEK INDUSTRIES INC/CN/ | POpen-market purchase Common Sharesindirect: By Haredale Ltd. | +3,752 | $3.19 | $12k | 45,029 | Dec 13, 2023 |
| Dec 12, 2023 | FTK FLOTEK INDUSTRIES INC/CN/ | POpen-market purchase Common Sharesindirect: By The D3 Family Fund, LP | +4,954 | $3.42 | $17k | 416,259 | Dec 13, 2023 |
| Dec 12, 2023 | FTK FLOTEK INDUSTRIES INC/CN/ | POpen-market purchase Common Sharesindirect: By The D3 Family Bulldog Fund, LP | +6,923 | $3.42 | $24k | 732,892 | Dec 13, 2023 |
| Dec 12, 2023 | FTK FLOTEK INDUSTRIES INC/CN/ | POpen-market purchase Common Sharesindirect: By Haredale Ltd. | +858 | $3.42 | $2,934 | 45,887 | Dec 13, 2023 |
| Dec 13, 2023 | FTK FLOTEK INDUSTRIES INC/CN/ | POpen-market purchase Common Sharesindirect: By The D3 Family Fund, LP | +11,536 | $3.53 | $41k | 427,795 | Dec 13, 2023 |
| Dec 13, 2023 | FTK FLOTEK INDUSTRIES INC/CN/ | POpen-market purchase Common Sharesindirect: By The D3 Family Bulldog Fund, LP | +20,310 | $3.53 | $72k | 753,202 | Dec 13, 2023 |
| Dec 13, 2023 | FTK FLOTEK INDUSTRIES INC/CN/ | POpen-market purchase Common Sharesindirect: By Haredale Ltd. | +1,272 | $3.53 | $4,490 | 47,159 | Dec 13, 2023 |
Questions about David Nierenberg
Answered from the filings on this page, as of the latest one.
Is David Nierenberg buying or selling?
Not in the last 12 months. David Nierenberg's latest open-market trade on SEC Form 4 was bought $44k of PBPB on Dec 18, 2024.
How did David Nierenberg's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and David Nierenberg has 0.
Where does David Nierenberg file Form 4?
David Nierenberg has filed Form 4 at FTK (FLOTEK INDUSTRIES INC/CN/); PBPB (POTBELLY CORP). A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.