InsidersTradesSigma
Total declarations
Companies
▲ Purchases (5 ops.)
▼ Sales (1 ops.)
Insider track record
OtherDisclosed buys
5
Disclosed sells
1
Not enough buy signals with a settled T+90 horizon to measure a track record yet.
Signal history
Browse the complete record of transactions filed by Nierenberg David. Insider active across 4 companies, notably Flotek Industries INC. Aggregated, 12 disclosures have been recorded. Split: 5 buys · 1 sell. Total volume traded: €626k. History available since 3 June 2021. The latest transaction was disclosed on 28 March 2025 (Acquisition). Regulator: SEC (Form 4). All data is free.
Companies and markets linked to Nierenberg David
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
Declarations12 total
22,169 shares@ US$9.3670.4% of flowCommon StockSEC:0001013594-25-000434:0
Canonical exit: 26 Jun 2025 (T+90)
7,500 shares@ US$9.2324.4% of flowCommon StockSEC:0001013594-25-000034:0
Canonical exit: 7 Apr 2025 (T+90)
1,590 shares@ US$9.405.2% of flowCommon StockSEC:0001013594-24-001027:0
Canonical exit: 18 Mar 2025 (T+90)
6,785 shares@ US$3.726.6% of flowCommon SharesSEC:0000928054-23-000225:0
Canonical exit: 13 Mar 2024 (T+90)
5,254 shares@ US$3.194.4% of flowCommon SharesSEC:0000928054-23-000223:0
Canonical exit: 10 Mar 2024 (T+90)
241,096 shares0Common SharesSEC:0000928054-23-000128:0
538,920 shares@ US$0.62589.0% of flowCommon SharesSEC:0000928054-23-000101:0
13,179 shares0Common SharesSEC:0000928054-23-000013:0
165,289 shares0Common SharesSEC:0000928054-22-000169:0
1,036,214 shares0Common SharesSEC:0000928054-22-000054:0
664,888 sharesCOMMON STOCKSEC:0001356949-21-000013:0
103,774 shares0Common StockSEC:0000928054-21-000111:0
12 of 12 declarations
About Nierenberg David
Nierenberg David is a director at FLOTEK INDUSTRIES INC/CN/, Flotek Industries INC and Houston Wire & Cable CO. He has filed 12 disclosures in total, and across the 12 most recent filings, from 2021-06-07 to 2025-03-31, buys amount to EUR 311758 and sells to EUR 314571, with Acquisition as the modal transaction nature.
