- Corporate Officers - M
- Morrison Briggs
Insider Trading History of Morrison Briggs
The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) of Morrison Briggs since 2019.
This trader's CIK number is 1654430.
At the time of last reporting, Morrison Briggs was the Officer of Syndax Pharmaceuticals Inc. (stock ticker symbol SNDX).
Also see all insider trading activities at Syndax Pharmaceuticals Inc.
Note that in the past
Morrison Briggs also reported insider trading activities as an insider of the following companies:
Yearly summary of insider trading at Repare Therapeutics Inc. (RPTX) by Morrison Briggs
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2020 | RPTX | 4,800 | $96,000 | 0 | $0 | 0 | $0 |
Yearly summary of insider trading at Codiak Biosciences, Inc. (CDAK) by Morrison Briggs
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2021 | CDAK | 4,761 | $99,981 | 0 | $0 | 0 | $0 |
Yearly summary of insider trading at Syndax Pharmaceuticals Inc (SNDX) by Morrison Briggs
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2023 | SNDX | 0 | $0 | 369,983 | $7,935,227 | 369,983 | $2,676,296 |
| 2022 | SNDX | 0 | $0 | 619,873 | $13,627,874 | 589,373 | $5,391,080 |
| 2021 | SNDX | 0 | $0 | 140,624 | $2,836,557 | 140,624 | $1,142,569 |
| 2020 | SNDX | 12,500 | $100,000 | 80,404 | $1,611,592 | 80,404 | $578,908 |
| 2019 | SNDX | 31,400 | $211,642 | 0 | $0 | 0 | $0 |
Yearly summary of insider trading at Arvinas, Inc. (ARVN) by Morrison Briggs
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2022 | ARVN | 0 | $0 | 41,920 | $2,771,980 | 32,376 | $518,016 |
| 2020 | ARVN | 2,500 | $95,450 | 0 | $0 | 0 | $0 |
Insider trading activities at 4 companies by Morrison Briggs:
1. Repare Therapeutics Inc. (RPTX)
2. Codiak Biosciences, Inc. (CDAK)
3. Syndax Pharmaceuticals Inc (SNDX)
4. Arvinas, Inc. (ARVN)
Table 1. Insider trading of Repare Therapeutics Inc. (RPTX) by Morrison Briggs
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2020-06-23 | RPTX | Buy | 4,800 | 20.00 | 96,000 |
Table 2. Insider trading of Codiak Biosciences, Inc. (CDAK) by Morrison Briggs
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2021-02-17 | CDAK | Buy | 4,761 | 21.00 | 99,981 |
Table 3. Insider trading of Syndax Pharmaceuticals Inc (SNDX) by Morrison Briggs
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2023-08-09 | SNDX | Option Ex | 52,855 | 8.77 | 463,538 |
| 2023-08-09 | SNDX | Sale | 52,855 | 18.27 | 965,396 |
| 2023-07-10 | SNDX | Option Ex | 52,855 | 8.77 | 463,538 |
| 2023-07-10 | SNDX | Sale | 52,855 | 20.40 | 1,078,083 |
| 2023-06-09 | SNDX | Option Ex | 52,855 | 7.58 | 400,376 |
| 2023-06-09 | SNDX | Sale | 52,855 | 21.18 | 1,119,416 |
| 2023-05-09 | SNDX | Option Ex | 52,855 | 6.38 | 337,214 |
| 2023-05-09 | SNDX | Sale | 52,855 | 21.41 | 1,131,466 |
| 2023-04-10 | SNDX | Option Ex | 52,855 | 6.38 | 337,214 |
| 2023-04-10 | SNDX | Sale | 52,855 | 19.53 | 1,032,258 |
| 2023-03-13 | SNDX | Option Ex | 52,854 | 6.38 | 337,208 |
| 2023-03-13 | SNDX | Sale | 52,854 | 22.53 | 1,190,694 |
| 2023-02-06 | SNDX | Option Ex | 52,854 | 6.38 | 337,208 |
| 2023-02-06 | SNDX | Sale | 52,854 | 26.83 | 1,417,914 |
| 2022-09-19 | SNDX | Sale | 114,339 | 23.03 | 2,632,998 |
| 2022-09-20 | SNDX | Sale | 59,649 | 23.25 | 1,387,018 |
| 2022-09-19 | SNDX | Option Ex | 114,339 | 10.90 | 1,246,295 |
| 2022-09-20 | SNDX | Option Ex | 59,649 | 10.90 | 650,174 |
| 2022-09-16 | SNDX | Sale | 125,000 | 23.22 | 2,902,500 |
| 2022-09-15 | SNDX | Sale | 66,775 | 24.20 | 1,616,021 |
| 2022-09-16 | SNDX | Option Ex | 125,000 | 9.05 | 1,131,250 |
| 2022-09-14 | SNDX | Sale | 87,645 | 23.80 | 2,085,863 |
| 2022-09-15 | SNDX | Option Ex | 66,775 | 7.20 | 480,780 |
| 2022-09-14 | SNDX | Option Ex | 87,645 | 7.20 | 631,044 |
| 2022-07-01 | SNDX | Sale | 62,292 | 19.00 | 1,183,423 |
| 2022-07-01 | SNDX | Option Ex | 62,292 | 7.20 | 448,502 |
| 2022-04-01 | SNDX | Option Ex | 70,545 | 10.90 | 768,940 |
| 2022-04-01 | SNDX | Sale | 101,045 | 17.45 | 1,762,831 |
| 2022-04-04 | SNDX | Option Ex | 3,128 | 10.90 | 34,095 |
| 2022-04-04 | SNDX | Sale | 3,128 | 18.29 | 57,220 |
| 2021-12-17 | SNDX | Option Ex | 35,156 | 10.90 | 383,200 |
| 2021-12-17 | SNDX | Sale | 35,156 | 20.00 | 703,120 |
| 2021-09-17 | SNDX | Sale | 70,262 | 20.07 | 1,410,017 |
| 2021-09-20 | SNDX | Option Ex | 50 | 7.20 | 360 |
| 2021-09-20 | SNDX | Sale | 50 | 20.00 | 1,000 |
| 2021-09-17 | SNDX | Option Ex | 70,262 | 7.20 | 505,886 |
| 2021-02-08 | SNDX | Option Ex | 35,156 | 7.20 | 253,123 |
| 2021-02-08 | SNDX | Sale | 35,156 | 20.55 | 722,420 |
| 2020-11-09 | SNDX | Sale | 62,938 | 20.04 | 1,261,277 |
| 2020-11-10 | SNDX | Sale | 17,466 | 20.06 | 350,315 |
| 2020-11-09 | SNDX | Option Ex | 62,938 | 7.20 | 453,153 |
| 2020-11-10 | SNDX | Option Ex | 17,466 | 7.20 | 125,755 |
| 2020-02-04 | SNDX | Buy | 12,500 | 8.00 | 100,000 |
| 2019-10-10 | SNDX | Buy | 11,000 | 5.40 | 59,400 |
| 2019-05-09 | SNDX | Buy | 13,200 | 7.55 | 99,726 |
| 2019-05-13 | SNDX | Buy | 7,200 | 7.29 | 52,516 |
Table 4. Insider trading of Arvinas, Inc. (ARVN) by Morrison Briggs
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2022-04-14 | ARVN | Option Ex | 16,188 | 16.00 | 259,008 |
| 2022-04-14 | ARVN | Sale | 20,960 | 66.11 | 1,385,749 |
| 2022-01-14 | ARVN | Sale | 20,960 | 66.14 | 1,386,231 |
| 2022-01-14 | ARVN | Option Ex | 16,188 | 16.00 | 259,008 |
| 2020-03-24 | ARVN | Buy | 2,500 | 38.18 | 95,450 |
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 Morrison Briggs
(Officer of Syndax Pharmaceuticals Inc at the time of this reporting) see
the Securities and Exchange Commission (SEC) website.