- Corporate Officers - R
- Rosenthal Brent D
Insider Trading History of Rosenthal Brent D
The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) of Rosenthal Brent D since 2015.
This trader's CIK number is 1443849.
At the time of last reporting, Rosenthal Brent D was the Director of Horizon Kinetics Holding Corp. (stock ticker symbol HKHC).
Also see all insider trading activities at Horizon Kinetics Holding Corp.
Note that in the past
Rosenthal Brent D also reported insider trading activities as an insider of the following companies:
Yearly summary of insider trading at Ricebran Technologies (RIBT) by Rosenthal Brent D
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2021 | RIBT | 11,779 | $10,836 | 0 | $0 | 0 | $0 |
| 2019 | RIBT | 33,094 | $63,121 | 0 | $0 | 0 | $0 |
Yearly summary of insider trading at Horizon Kinetics Holding Corp (HKHC) by Rosenthal Brent D
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2025 | HKHC | 300 | $11,400 | 0 | $0 | 0 | $0 |
| 2024 | HKHC | 400 | $15,124 | 0 | $0 | 0 | $0 |
Yearly summary of insider trading at Rentrak Corp (RENT) by Rosenthal Brent D
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2015 | RENT | 1,000 | $53,701 | 0 | $0 | 0 | $0 |
Yearly summary of insider trading at Sito Mobile, Ltd. (SITO) by Rosenthal Brent D
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2016 | SITO | 26,667 | $100,001 | 0 | $0 | 0 | $0 |
Yearly summary of insider trading at Comscore, Inc. (SCOR) by Rosenthal Brent D
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2024 | SCOR | 0 | $0 | 0 | $0 | 8,415 | $0 |
| 2023 | SCOR | 0 | $0 | 0 | $0 | 100,000 | $0 |
| 2022 | SCOR | 0 | $0 | 0 | $0 | 79,328 | $0 |
| 2021 | SCOR | 15,000 | $48,750 | 0 | $0 | 0 | $0 |
| 2020 | SCOR | 0 | $0 | 0 | $0 | 24,155 | $0 |
| 2019 | SCOR | 46,500 | $148,102 | 0 | $0 | 11,390 | $0 |
Insider trading activities at 5 companies by Rosenthal Brent D:
1. Ricebran Technologies (RIBT)
2. Horizon Kinetics Holding Corp (HKHC)
3. Rentrak Corp (RENT)
4. Sito Mobile, Ltd. (SITO)
5. Comscore, Inc. (SCOR)
Table 1. Insider trading of Ricebran Technologies (RIBT) by Rosenthal Brent D
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2021-05-06 | RIBT | Buy | 11,779 | .92 | 10,836 |
| 2019-12-19 | RIBT | Buy | 20,000 | 1.25 | 25,000 |
| 2019-05-28 | RIBT | Buy | 6,873 | 2.90 | 19,931 |
| 2019-05-29 | RIBT | Buy | 6,221 | 2.92 | 18,190 |
Table 2. Insider trading of Horizon Kinetics Holding Corp (HKHC) by Rosenthal Brent D
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2025-09-02 | HKHC | Buy | 300 | 38.00 | 11,400 |
| 2024-11-19 | HKHC | Buy | 100 | 37.06 | 3,706 |
| 2024-11-14 | HKHC | Buy | 300 | 38.06 | 11,418 |
Table 3. Insider trading of Rentrak Corp (RENT) by Rosenthal Brent D
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2015-02-10 | RENT | Buy | 1,000 | 53.70 | 53,701 |
Table 4. Insider trading of Sito Mobile, Ltd. (SITO) by Rosenthal Brent D
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2016-09-21 | SITO | Buy | 26,667 | 3.75 | 100,001 |
Table 5. Insider trading of Comscore, Inc. (SCOR) by Rosenthal Brent D
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2024-06-12 | SCOR | Option Ex | 8,415 | .00 | 0 |
| 2023-06-15 | SCOR | Option Ex | 100,000 | .00 | 0 |
| 2022-06-15 | SCOR | Option Ex | 79,328 | .00 | 0 |
| 2021-08-11 | SCOR | Buy | 15,000 | 3.25 | 48,750 |
| 2020-06-30 | SCOR | Option Ex | 24,155 | .00 | 0 |
| 2019-11-07 | SCOR | Buy | 46,500 | 3.19 | 148,102 |
| 2019-06-10 | SCOR | Option Ex | 11,390 | .00 | 0 |
Insider trading activities including stock purchases, stock sales, and option exercises
listed in the above table cannot be completely guaranteed as to their accuracy.
For more information regarding the trades made by Rosenthal Brent D
(Director of Horizon Kinetics Holding Corp at the time of this reporting) see
the Securities and Exchange Commission (SEC) website.