- Corporate Officers - B
- Baker Brothers Life Sciences Lp
Insider Trading History of Baker Brothers Life Sciences Lp
The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) of Baker Brothers Life Sciences Lp since 2015.
This trader's CIK number is 1363364.
At the time of last reporting, Baker Brothers Life Sciences Lp was the Officer of Madrigal Pharmaceuticals, Inc.. (stock ticker symbol MDGL).
Also see all insider trading activities at Madrigal Pharmaceuticals, Inc..
Note that in the past
Baker Brothers Life Sciences LP also reported insider trading activities as an insider of the following companies:
Yearly summary of insider trading at Madrigal Pharmaceuticals, Inc. (MDGL) by Baker Brothers Life Sciences Lp
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2025 | MDGL | 165,683 | $61,875,548 | 0 | $0 | 0 | $0 |
| 2023 | MDGL | 424,685 | $77,408,698 | 0 | $0 | 0 | $0 |
Yearly summary of insider trading at Beone Medicines Ltd. (BGNE) by Baker Brothers Life Sciences Lp
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2017 | BGNE | 176,056 | $12,499,976 | 0 | $0 | 0 | $0 |
Yearly summary of insider trading at Talis Biomedical Corp (TLIS) by Baker Brothers Life Sciences Lp
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2021 | TLIS | 50,000 | $218,250 | 0 | $0 | 0 | $0 |
Yearly summary of insider trading at Tscan Therapeutics, Inc. (TCRX) by Baker Brothers Life Sciences Lp
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2022 | TCRX | 1,359,792 | $2,533,780 | 0 | $0 | 0 | $0 |
Yearly summary of insider trading at Incyte Corp (INCY) by Baker Brothers Life Sciences Lp
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2017 | INCY | 100,000 | $13,200,000 | 0 | $0 | 60,000 | $435,600 |
Yearly summary of insider trading at Alexion Pharmaceuticals, Inc. (ALXN) by Baker Brothers Life Sciences Lp
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2017 | ALXN | 2,009,734 | $234,362,596 | 0 | $0 | 0 | $0 |
Yearly summary of insider trading at Seagen Inc. (SGEN) by Baker Brothers Life Sciences Lp
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2021 | SGEN | 0 | $0 | 394,895 | $63,958,966 | 0 | $0 |
| 2017 | SGEN | 0 | $0 | 0 | $0 | 20,000 | $204,000 |
| 2016 | SGEN | 5,819,302 | $236,397,681 | 0 | $0 | 20,000 | $83,600 |
| 2015 | SGEN | 9,422,008 | $389,855,263 | 0 | $0 | 20,000 | $102,200 |
Yearly summary of insider trading at Acadia Pharmaceuticals Inc (ACAD) by Baker Brothers Life Sciences Lp
| | Insider Buying | Insider Sales | Option Exercises |
|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
|---|
| 2023 | ACAD | 896,522 | $22,719,343 | 0 | $0 | 25,000 | $425,250 |
Insider trading activities at 8 companies by Baker Brothers Life Sciences Lp:
1. Madrigal Pharmaceuticals, Inc. (MDGL)
2. Beone Medicines Ltd. (BGNE)
3. Talis Biomedical Corp (TLIS)
4. Tscan Therapeutics, Inc. (TCRX)
5. Incyte Corp (INCY)
6. Alexion Pharmaceuticals, Inc. (ALXN)
7. Seagen Inc. (SGEN)
8. Acadia Pharmaceuticals Inc (ACAD)
Table 1. Insider trading of Madrigal Pharmaceuticals, Inc. (MDGL) by Baker Brothers Life Sciences Lp
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2025-08-18 | MDGL | Buy | 68,618 | 363.32 | 24,930,017 |
| 2025-08-18 | MDGL | Buy | 37,164 | 373.65 | 13,886,402 |
| 2025-08-20 | MDGL | Buy | 59,901 | 384.95 | 23,059,129 |
| 2023-12-14 | MDGL | Buy | 20,633 | 228.37 | 4,711,978 |
| 2023-12-13 | MDGL | Buy | 81,159 | 220.73 | 17,914,226 |
| 2023-12-12 | MDGL | Buy | 34,578 | 213.61 | 7,386,102 |
| 2023-11-20 | MDGL | Buy | 20,709 | 186.18 | 3,855,580 |
| 2023-11-17 | MDGL | Buy | 46,370 | 172.91 | 8,018,068 |
| 2023-11-21 | MDGL | Buy | 64,350 | 187.22 | 12,047,349 |
| 2023-11-14 | MDGL | Buy | 37,660 | 153.55 | 5,782,655 |
| 2023-11-13 | MDGL | Buy | 69,839 | 141.51 | 9,883,196 |
| 2023-11-14 | MDGL | Buy | 34,188 | 156.42 | 5,347,823 |
| 2023-11-15 | MDGL | Buy | 15,199 | 161.97 | 2,461,721 |
Table 2. Insider trading of Beone Medicines Ltd. (BGNE) by Baker Brothers Life Sciences Lp
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2017-08-11 | BGNE | Buy | 176,056 | 71.00 | 12,499,976 |
Table 3. Insider trading of Talis Biomedical Corp (TLIS) by Baker Brothers Life Sciences Lp
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2021-11-18 | TLIS | Buy | 50,000 | 4.37 | 218,250 |
Table 4. Insider trading of Tscan Therapeutics, Inc. (TCRX) by Baker Brothers Life Sciences Lp
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2022-05-10 | TCRX | Buy | 1,333,927 | 1.86 | 2,482,438 |
| 2022-05-11 | TCRX | Buy | 25,865 | 1.99 | 51,342 |
Table 5. Insider trading of Incyte Corp (INCY) by Baker Brothers Life Sciences Lp
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2017-09-08 | INCY | Buy | 100,000 | 132.00 | 13,200,000 |
| 2017-04-27 | INCY | Option Ex | 60,000 | 7.26 | 435,600 |
Table 6. Insider trading of Alexion Pharmaceuticals, Inc. (ALXN) by Baker Brothers Life Sciences Lp
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2017-06-15 | ALXN | Buy | 656,387 | 117.05 | 76,832,723 |
| 2017-06-14 | ALXN | Buy | 4,392 | 118.00 | 518,256 |
| 2017-06-14 | ALXN | Buy | 1,348,955 | 116.39 | 157,011,617 |
Table 7. Insider trading of Seagen Inc. (SGEN) by Baker Brothers Life Sciences Lp
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2021-11-30 | SGEN | Sale | 301,444 | 162.21 | 48,896,628 |
| 2021-12-01 | SGEN | Sale | 93,451 | 161.18 | 15,062,338 |
| 2017-05-15 | SGEN | Option Ex | 20,000 | 10.20 | 204,000 |
| 2016-11-08 | SGEN | Buy | 326,300 | 59.47 | 19,403,429 |
| 2016-11-07 | SGEN | Buy | 56,200 | 58.74 | 3,301,356 |
| 2016-11-01 | SGEN | Buy | 184,674 | 53.89 | 9,952,266 |
| 2016-11-02 | SGEN | Buy | 466,619 | 56.04 | 26,151,195 |
| 2016-11-03 | SGEN | Buy | 379,336 | 56.73 | 21,519,731 |
| 2016-11-03 | SGEN | Buy | 198,433 | 56.35 | 11,180,905 |
| 2016-09-09 | SGEN | Buy | 256,220 | 50.58 | 12,958,326 |
| 2016-09-12 | SGEN | Buy | 49,889 | 50.64 | 2,526,378 |
| 2016-09-13 | SGEN | Buy | 141,202 | 50.74 | 7,164,024 |
| 2016-09-07 | SGEN | Buy | 59,560 | 48.29 | 2,875,914 |
| 2016-09-08 | SGEN | Buy | 211,093 | 49.85 | 10,523,830 |
| 2016-09-06 | SGEN | Buy | 143,363 | 45.59 | 6,536,062 |
| 2016-03-17 | SGEN | Buy | 124,065 | 32.07 | 3,978,392 |
| 2016-03-14 | SGEN | Buy | 118,941 | 33.77 | 4,016,518 |
| 2016-03-16 | SGEN | Buy | 569,203 | 31.71 | 18,050,565 |
| 2016-03-15 | SGEN | Buy | 661,093 | 31.85 | 21,057,134 |
| 2016-03-09 | SGEN | Buy | 208,670 | 31.91 | 6,659,494 |
| 2016-03-10 | SGEN | Buy | 290,231 | 32.35 | 9,390,424 |
| 2016-03-11 | SGEN | Buy | 195,765 | 32.82 | 6,424,811 |
| 2016-03-08 | SGEN | Option Ex | 20,000 | 4.18 | 83,600 |
| 2016-03-08 | SGEN | Buy | 153,200 | .00 | 0 |
| 2016-03-07 | SGEN | Buy | 61,265 | 33.70 | 2,064,630 |
| 2016-03-04 | SGEN | Buy | 288,058 | 32.09 | 9,242,917 |
| 2016-03-01 | SGEN | Buy | 24,200 | 31.24 | 756,104 |
| 2016-02-29 | SGEN | Buy | 251,722 | 30.45 | 7,663,676 |
| 2016-03-02 | SGEN | Buy | 400,000 | 32.50 | 12,999,600 |
| 2015-11-18 | SGEN | Buy | 14,638 | 43.42 | 635,552 |
| 2015-11-19 | SGEN | Buy | 133,073 | 43.93 | 5,845,364 |
| 2015-11-20 | SGEN | Buy | 181,647 | 43.93 | 7,980,297 |
| 2015-11-10 | SGEN | Buy | 9,400 | 44.00 | 413,600 |
| 2015-11-09 | SGEN | Buy | 507,300 | 43.57 | 22,102,553 |
| 2015-11-06 | SGEN | Buy | 417,924 | 41.91 | 17,514,776 |
| 2015-09-11 | SGEN | Buy | 4,212,787 | 42.49 | 179,009,745 |
| 2015-09-14 | SGEN | Buy | 320,438 | 45.76 | 14,663,883 |
| 2015-09-15 | SGEN | Buy | 626,259 | 47.64 | 29,837,483 |
| 2015-05-19 | SGEN | Buy | 214,129 | 40.91 | 8,759,375 |
| 2015-05-20 | SGEN | Buy | 374,298 | 42.07 | 15,745,219 |
| 2015-05-21 | SGEN | Buy | 362,459 | 43.46 | 15,753,555 |
| 2015-05-11 | SGEN | Option Ex | 20,000 | 5.11 | 102,200 |
| 2015-05-05 | SGEN | Buy | 530,952 | 34.49 | 18,312,003 |
| 2015-05-07 | SGEN | Buy | 47,717 | 37.11 | 1,770,873 |
| 2015-05-06 | SGEN | Buy | 453,995 | 36.22 | 16,441,882 |
| 2015-03-09 | SGEN | Buy | 275,717 | 34.66 | 9,555,248 |
| 2015-03-10 | SGEN | Buy | 9,319 | 34.59 | 322,362 |
| 2015-03-03 | SGEN | Buy | 425,220 | 34.84 | 14,815,090 |
| 2015-03-04 | SGEN | Buy | 23,621 | 34.81 | 822,152 |
| 2015-02-24 | SGEN | Buy | 217,465 | 33.68 | 7,324,656 |
| 2015-02-25 | SGEN | Buy | 63,650 | 35.03 | 2,229,595 |
Table 8. Insider trading of Acadia Pharmaceuticals Inc (ACAD) by Baker Brothers Life Sciences Lp
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|
| 2023-05-24 | ACAD | Buy | 553,263 | 25.48 | 14,096,587 |
| 2023-05-22 | ACAD | Buy | 134,206 | 24.63 | 3,305,493 |
| 2023-05-23 | ACAD | Buy | 209,053 | 25.43 | 5,317,263 |
| 2023-05-23 | ACAD | Option Ex | 25,000 | 17.01 | 425,250 |
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 Baker Brothers Life Sciences Lp
(Officer of Madrigal Pharmaceuticals, Inc. at the time of this reporting) see
the Securities and Exchange Commission (SEC) website.