- Corporate Officers - P
- Protopapas Anna
Insider Trading History of Protopapas Anna
The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) of Protopapas Anna since 2006.
This trader's CIK number is 1347582.
At the time of last reporting, Protopapas Anna was the Officer of Mersana Therapeutics, Inc.. (stock ticker symbol MRSN).
Also see all insider trading activities at Mersana Therapeutics, Inc..
Note that in the past
Protopapas Anna also reported insider trading activities as an insider of the following companies:
Yearly summary of insider trading at Millennium Pharmaceuticals Inc (MLNM) by Protopapas Anna
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2008 | MLNM | 0 | $0 | 20,875 | $331,427 | 7,373 | $59,905 |
| 2007 | MLNM | 0 | $0 | 59,386 | $727,735 | 194,345 | $1,938,838 |
| 2006 | MLNM | 0 | $0 | 436 | $5,075 | 0 | $0 |
Yearly summary of insider trading at Nuvalent, Inc. (NUVL) by Protopapas Anna
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2023 | NUVL | 0 | $0 | 5,000 | $378,350 | 5,000 | $46,800 |
Yearly summary of insider trading at Mersana Therapeutics, Inc. (MRSN) by Protopapas Anna
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2025 | MRSN | 0 | $0 | 26,362 | $16,521 | 69,250 | $0 |
| 2024 | MRSN | 0 | $0 | 29,399 | $79,671 | 86,958 | $0 |
| 2023 | MRSN | 0 | $0 | 17,346 | $99,566 | 55,708 | $0 |
| 2022 | MRSN | 0 | $0 | 0 | $0 | 38,958 | $0 |
| 2021 | MRSN | 0 | $0 | 41,944 | $513,186 | 117,709 | $0 |
| 2017 | MRSN | 0 | $0 | 0 | $0 | 10,417 | $15,938 |
Insider trading activities at 3 companies by Protopapas Anna:
1. Millennium Pharmaceuticals Inc (MLNM)
2. Nuvalent, Inc. (NUVL)
3. Mersana Therapeutics, Inc. (MRSN)
Table 1. Insider trading of Millennium Pharmaceuticals Inc (MLNM) by Protopapas Anna
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2008-05-01 | MLNM | Sale | 2,041 | 24.88 | 50,780 |
| 2008-03-07 | MLNM | Sale | 2,010 | 13.34 | 26,811 |
| 2008-02-29 | MLNM | Sale | 4,289 | 13.67 | 58,647 |
| 2008-02-19 | MLNM | Option Ex | 3,561 | 8.12 | 28,933 |
| 2008-02-19 | MLNM | Sale | 3,561 | 14.03 | 49,960 |
| 2008-01-18 | MLNM | Option Ex | 3,812 | 8.12 | 30,972 |
| 2008-01-18 | MLNM | Sale | 3,812 | 16.53 | 63,012 |
| 2008-01-08 | MLNM | Sale | 1,071 | 15.23 | 16,311 |
| 2008-01-03 | MLNM | Sale | 4,091 | 16.11 | 65,906 |
| 2007-12-17 | MLNM | Option Ex | 143,750 | 11.51 | 1,654,562 |
| 2007-12-03 | MLNM | Sale | 5,674 | 14.55 | 82,556 |
| 2007-11-26 | MLNM | Sale | 5,000 | 14.32 | 71,600 |
| 2007-11-19 | MLNM | Sale | 5,000 | 13.62 | 68,100 |
| 2007-11-12 | MLNM | Sale | 5,000 | 13.41 | 67,050 |
| 2007-11-05 | MLNM | Sale | 5,000 | 12.62 | 63,099 |
| 2007-11-01 | MLNM | Sale | 368 | 12.00 | 4,416 |
| 2007-09-17 | MLNM | Option Ex | 25,674 | 4.91 | 125,956 |
| 2007-05-01 | MLNM | Sale | 1,929 | 11.07 | 21,354 |
| 2007-04-09 | MLNM | Sale | 4,250 | 11.56 | 49,130 |
| 2007-04-09 | MLNM | Option Ex | 4,250 | 6.88 | 29,240 |
| 2007-04-02 | MLNM | Sale | 4,250 | 11.40 | 48,450 |
| 2007-04-02 | MLNM | Option Ex | 4,250 | 6.88 | 29,240 |
| 2007-03-26 | MLNM | Option Ex | 4,250 | 6.88 | 29,240 |
| 2007-03-26 | MLNM | Sale | 4,250 | 11.38 | 48,365 |
| 2007-03-26 | MLNM | Option Ex | 4,250 | 6.88 | 29,240 |
| 2007-03-26 | MLNM | Sale | 4,250 | 11.38 | 48,365 |
| 2007-03-19 | MLNM | Sale | 4,088 | 10.73 | 43,864 |
| 2007-03-19 | MLNM | Option Ex | 4,088 | 7.99 | 32,663 |
| 2007-03-09 | MLNM | Option Ex | 3,833 | 2.27 | 8,697 |
| 2007-03-09 | MLNM | Sale | 3,833 | 10.59 | 40,572 |
| 2007-03-12 | MLNM | Sale | 1,970 | 10.64 | 20,960 |
| 2007-01-04 | MLNM | Sale | 4,524 | 11.02 | 49,854 |
| 2006-11-01 | MLNM | Sale | 436 | 11.64 | 5,075 |
Table 2. Insider trading of Nuvalent, Inc. (NUVL) by Protopapas Anna
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2023-12-18 | NUVL | Option Ex | 5,000 | 9.36 | 46,800 |
| 2023-12-18 | NUVL | Sale | 5,000 | 75.67 | 378,350 |
Table 3. Insider trading of Mersana Therapeutics, Inc. (MRSN) by Protopapas Anna
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2025-01-16 | MRSN | Sale | 8,637 | .58 | 5,009 |
| 2025-01-15 | MRSN | Option Ex | 21,250 | .00 | 0 |
| 2025-01-14 | MRSN | Option Ex | 16,750 | .00 | 0 |
| 2025-01-15 | MRSN | Sale | 6,191 | .63 | 3,900 |
| 2025-01-13 | MRSN | Option Ex | 31,250 | .00 | 0 |
| 2025-01-14 | MRSN | Sale | 11,534 | .66 | 7,612 |
| 2024-01-13 | MRSN | Option Ex | 31,250 | .00 | 0 |
| 2024-01-15 | MRSN | Option Ex | 38,958 | .00 | 0 |
| 2024-01-14 | MRSN | Option Ex | 16,750 | .00 | 0 |
| 2024-01-16 | MRSN | Sale | 29,399 | 2.71 | 79,671 |
| 2023-01-14 | MRSN | Option Ex | 16,750 | .00 | 0 |
| 2023-01-17 | MRSN | Sale | 17,346 | 5.74 | 99,566 |
| 2023-01-15 | MRSN | Option Ex | 38,958 | .00 | 0 |
| 2022-01-14 | MRSN | Option Ex | 38,958 | .00 | 0 |
| 2021-07-15 | MRSN | Option Ex | 100,000 | .00 | 0 |
| 2021-07-16 | MRSN | Sale | 20,043 | 12.47 | 249,936 |
| 2021-07-19 | MRSN | Sale | 21,901 | 12.02 | 263,250 |
| 2021-01-15 | MRSN | Option Ex | 17,709 | .00 | 0 |
| 2017-12-20 | MRSN | Option Ex | 10,417 | 1.53 | 15,938 |
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 Protopapas Anna
(Officer of Mersana Therapeutics, Inc. at the time of this reporting) see
the Securities and Exchange Commission (SEC) website.