- Corporate Officers - M
- Mignone Roberto
Insider Trading History of Mignone Roberto
The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) of Mignone Roberto since 2015.
This trader's CIK number is 1258394.
At the time of last reporting, Mignone Roberto was the Director of Guardant Health, Inc.. (stock ticker symbol GH).
Also see all insider trading activities at Guardant Health, Inc..
Note that in the past
MIGNONE ROBERTO also reported insider trading activities as an insider of the following companies:
Yearly summary of insider trading at Cardiff Oncology, Inc. (TROV) by Mignone Roberto
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2016 | TROV | 322,472 | $993,213 | 0 | $0 | 0 | $0 |
| 2015 | TROV | 1,147,730 | $6,706,333 | 0 | $0 | 0 | $0 |
Yearly summary of insider trading at Guardant Health, Inc. (GH) by Mignone Roberto
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2025 | GH | 0 | $0 | 0 | $0 | 3,167 | $0 |
Yearly summary of insider trading at Teva Pharmaceutical Industries Ltd (TEVA) by Mignone Roberto
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2025 | TEVA | 0 | $0 | 0 | $0 | 9,632 | $0 |
| 2024 | TEVA | 0 | $0 | 519,000 | $8,838,570 | 21,108 | $0 |
| 2023 | TEVA | 0 | $0 | 0 | $0 | 15,810 | $0 |
| 2022 | TEVA | 0 | $0 | 0 | $0 | 14,479 | $0 |
| 2021 | TEVA | 0 | $0 | 0 | $0 | 18,709 | $0 |
| 2020 | TEVA | 0 | $0 | 0 | $0 | 25,577 | $0 |
| 2018 | TEVA | 750,000 | $14,432,750 | 0 | $0 | 0 | $0 |
Yearly summary of insider trading at Avanti Acquisition Corp. (AVAN) by Mignone Roberto
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2020 | AVAN | 1,000,000 | $10,000,000 | 0 | $0 | 0 | $0 |
Insider trading activities at 4 companies by Mignone Roberto:
1. Cardiff Oncology, Inc. (TROV)
2. Guardant Health, Inc. (GH)
3. Teva Pharmaceutical Industries Ltd (TEVA)
4. Avanti Acquisition Corp. (AVAN)
Table 1. Insider trading of Cardiff Oncology, Inc. (TROV) by Mignone Roberto
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2016-11-11 | TROV | Buy | 322,472 | 3.08 | 993,213 |
| 2015-07-17 | TROV | Buy | 140,000 | 8.75 | 1,225,000 |
| 2015-04-02 | TROV | Buy | 300,000 | 6.90 | 2,070,000 |
| 2015-02-25 | TROV | Buy | 105,142 | 5.12 | 538,327 |
| 2015-02-26 | TROV | Buy | 78,801 | 5.42 | 427,101 |
| 2015-02-27 | TROV | Buy | 79,343 | 5.62 | 445,907 |
| 2015-02-06 | TROV | Buy | 444,444 | 4.50 | 1,999,998 |
Table 2. Insider trading of Guardant Health, Inc. (GH) by Mignone Roberto
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2025-10-21 | GH | Option Ex | 3,167 | .00 | 0 |
Table 3. Insider trading of Teva Pharmaceutical Industries Ltd (TEVA) by Mignone Roberto
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2025-06-06 | TEVA | Option Ex | 9,632 | .00 | 0 |
| 2024-06-18 | TEVA | Sale | 519,000 | 17.03 | 8,838,570 |
| 2024-06-15 | TEVA | Option Ex | 21,108 | .00 | 0 |
| 2023-08-04 | TEVA | Option Ex | 15,810 | .00 | 0 |
| 2022-06-14 | TEVA | Option Ex | 14,479 | .00 | 0 |
| 2021-06-09 | TEVA | Option Ex | 12,668 | .00 | 0 |
| 2021-06-05 | TEVA | Option Ex | 6,041 | .00 | 0 |
| 2020-08-11 | TEVA | Option Ex | 7,956 | .00 | 0 |
| 2020-06-11 | TEVA | Option Ex | 17,621 | .00 | 0 |
| 2018-05-09 | TEVA | Buy | 500,000 | 19.21 | 9,603,000 |
| 2018-05-10 | TEVA | Buy | 250,000 | 19.32 | 4,829,750 |
Table 4. Insider trading of Avanti Acquisition Corp. (AVAN) by Mignone Roberto
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2020-10-01 | AVAN | Buy | 1,000,000 | 10.00 | 10,000,000 |
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 Mignone Roberto
(Director of Guardant Health, Inc. at the time of this reporting) see
the Securities and Exchange Commission (SEC) website.