Insider trades › Baker Bros. Advisors (GP) LLC
Baker Bros. Advisors (GP) LLC
A corporate insider: an officer, director or owner of more than 10% of a company. Insiders report their trades to the SEC on Form 4The form insiders use to report each purchase or sale of their company's stock. It is due within two business days of the trade. · Last filing Sep 30, 2026
Companies
11
where this person reports as an insider
Open-market buys
84
among the latest 86 trades
Open-market sales
2
among the latest 86 trades
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Using 13F.ai, list Baker Bros. Advisors (GP) LLC's open-market buys and sells across companies in the last two years, with the Form 4 links.
Using 13F.ai, how did the stocks Baker Bros. Advisors (GP) LLC bought perform after the purchase compared with the S&P 500?
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Buying and selling by quarter
Dollars bought and sold on the open market over the last two years.
Bought Sold
By trade date, using the shares and price reported for each trade. Stock grants, option exercises and shares withheld for tax are left out.
Roles
The companies where this person reports as an insider, and their position at each, most recent first.
| KOD Kodiak Sciences Inc | Director, 10% owner | Sep 30, 2026 |
| KYMR Kymera Therapeutics, Inc. | Director, 10% owner | Jun 25, 2026 |
| REPL Replimune Group, Inc. | Director, 10% owner | Apr 7, 2026 |
| TRDA Entrada Therapeutics, Inc. | 10% owner | Nov 12, 2025 |
| CELC Celcuity Inc. | 10% owner | Sep 10, 2025 |
| MDGL Madrigal Pharmaceuticals, Inc. | Director | Aug 20, 2025 |
| ACAD ACADIA Pharmaceuticals Inc. | Director, 10% owner | Jun 2, 2025 |
| IMCR Immunocore Holdings plc | Director | May 19, 2025 |
| ONC BeOne Medicines Ltd. | Director | Feb 28, 2025 |
| BCYC Bicycle Therapeutics plc | Director, 10% owner | Dec 17, 2024 |
| IGMS IGM Biosciences, Inc. | Director, 10% owner | Oct 2, 2024 |
Roles come from the filings themselves and can change over time.
Latest open-market trades
Purchases and sales at every company, most recent filing first.
| How the stock has done since the trade date, measured against the S&P 500 over the same days. It describes the stock, not the trader's actual gain or loss. | Filing | ||||||
|---|---|---|---|---|---|---|---|
| Sep 28, 2026 | KOD Kodiak Sciences Inc | Buy | 154 | $68.37 | $10.5K | +25.1% | Form 4 ↗ |
| Sep 28, 2026 | KOD Kodiak Sciences Inc | Buy | 14,344 | $61.21 | $878.0K | +25.1% | Form 4 ↗ |
| Sep 28, 2026 | KOD Kodiak Sciences Inc | Buy | 2,666 | $61.63 | $164.3K | +25.1% | Form 4 ↗ |
| Sep 28, 2026 | KOD Kodiak Sciences Inc | Buy | 44,690 | $61.63 | $2.8M | +25.1% | Form 4 ↗ |
| Sep 28, 2026 | KOD Kodiak Sciences Inc | Buy | 243 | $62.96 | $15.3K | +25.1% | Form 4 ↗ |
| Sep 28, 2026 | KOD Kodiak Sciences Inc | Buy | 4,067 | $62.96 | $256.1K | +25.1% | Form 4 ↗ |
| Sep 28, 2026 | KOD Kodiak Sciences Inc | Buy | 479 | $64.43 | $30.9K | +25.1% | Form 4 ↗ |
| Sep 28, 2026 | KOD Kodiak Sciences Inc | Buy | 8,021 | $64.43 | $516.8K | +25.1% | Form 4 ↗ |
| Sep 28, 2026 | KOD Kodiak Sciences Inc | Buy | 321 | $67.10 | $21.5K | +25.1% | Form 4 ↗ |
| Sep 28, 2026 | KOD Kodiak Sciences Inc | Buy | 5,382 | $67.10 | $361.1K | +25.1% | Form 4 ↗ |
| Sep 28, 2026 | KOD Kodiak Sciences Inc | Buy | 856 | $61.21 | $52.4K | +25.1% | Form 4 ↗ |
| Sep 28, 2026 | KOD Kodiak Sciences Inc | Buy | 2,585 | $68.37 | $176.7K | +25.1% | Form 4 ↗ |
| Sep 28, 2026 | KOD Kodiak Sciences Inc | Buy | 2,331 | $68.96 | $160.7K | +25.1% | Form 4 ↗ |
| Sep 28, 2026 | KOD Kodiak Sciences Inc | Buy | 39,066 | $68.96 | $2.7M | +25.1% | Form 4 ↗ |
| Sep 28, 2026 | KOD Kodiak Sciences Inc | Buy | 1,056 | $71.48 | $75.5K | +25.1% | Form 4 ↗ |
| Sep 28, 2026 | KOD Kodiak Sciences Inc | Buy | 17,698 | $71.48 | $1.3M | +25.1% | Form 4 ↗ |
| Sep 28, 2026 | KOD Kodiak Sciences Inc | Buy | 16,641 | $72.39 | $1.2M | +25.1% | Form 4 ↗ |
| Sep 28, 2026 | KOD Kodiak Sciences Inc | Buy | 278,978 | $72.39 | $20.2M | +25.1% | Form 4 ↗ |
| Sep 28, 2026 | KOD Kodiak Sciences Inc | Buy | 4,696 | $73.08 | $343.2K | +25.1% | Form 4 ↗ |
| Sep 28, 2026 | KOD Kodiak Sciences Inc | Buy | 78,726 | $73.08 | $5.8M | +25.1% | Form 4 ↗ |
| Sep 28, 2026 | KOD Kodiak Sciences Inc | Buy | 4,577 | $73.97 | $338.6K | +25.1% | Form 4 ↗ |
| Sep 28, 2026 | KOD Kodiak Sciences Inc | Buy | 76,723 | $73.97 | $5.7M | +25.1% | Form 4 ↗ |
| Sep 28, 2026 | KOD Kodiak Sciences Inc | Buy | 1,924 | $75.52 | $145.3K | +25.1% | Form 4 ↗ |
| Sep 28, 2026 | KOD Kodiak Sciences Inc | Buy | 32,261 | $75.52 | $2.4M | +25.1% | Form 4 ↗ |
| Sep 28, 2026 | KOD Kodiak Sciences Inc | Buy | 3,681 | $76.35 | $281.0K | +25.1% | Form 4 ↗ |
| Sep 28, 2026 | KOD Kodiak Sciences Inc | Buy | 61,700 | $76.35 | $4.7M | +25.1% | Form 4 ↗ |
| Sep 28, 2026 | KOD Kodiak Sciences Inc | Buy | 2,884 | $77.43 | $223.3K | +25.1% | Form 4 ↗ |
| Sep 28, 2026 | KOD Kodiak Sciences Inc | Buy | 48,350 | $77.43 | $3.7M | +25.1% | Form 4 ↗ |
| Sep 28, 2026 | KOD Kodiak Sciences Inc | Buy | 2,969 | $78.57 | $233.3K | +25.1% | Form 4 ↗ |
| Sep 28, 2026 | KOD Kodiak Sciences Inc | Buy | 49,771 | $78.57 | $3.9M | +25.1% | Form 4 ↗ |
| Nov 12, 2025 | TRDA Entrada Therapeutics, Inc. | Buy | 11,494 | $7.95 | $91.4K | -46.8% | Form 4 ↗ |
| Nov 12, 2025 | TRDA Entrada Therapeutics, Inc. | Buy | 1,040 | $7.95 | $8,268 | -46.8% | Form 4 ↗ |
| Nov 12, 2025 | TRDA Entrada Therapeutics, Inc. | Buy | 7,321 | $7.73 | $56.6K | -46.8% | Form 4 ↗ |
| Nov 12, 2025 | TRDA Entrada Therapeutics, Inc. | Buy | 80,881 | $7.73 | $625.2K | -46.8% | Form 4 ↗ |
| Nov 11, 2025 | TRDA Entrada Therapeutics, Inc. | Buy | 2,795 | $7.54 | $21.1K | -44.3% | Form 4 ↗ |
| Nov 11, 2025 | TRDA Entrada Therapeutics, Inc. | Buy | 1,059 | $7.39 | $7,826 | -44.3% | Form 4 ↗ |
| Nov 11, 2025 | TRDA Entrada Therapeutics, Inc. | Buy | 11,701 | $7.39 | $86.5K | -44.3% | Form 4 ↗ |
| Nov 11, 2025 | TRDA Entrada Therapeutics, Inc. | Buy | 30,879 | $7.54 | $232.8K | -44.3% | Form 4 ↗ |
| Nov 10, 2025 | TRDA Entrada Therapeutics, Inc. | Buy | 2,296 | $7.21 | $16.6K | -40.6% | Form 4 ↗ |
| Nov 10, 2025 | TRDA Entrada Therapeutics, Inc. | Buy | 2,947 | $7.22 | $21.3K | -40.6% | Form 4 ↗ |
| Nov 10, 2025 | TRDA Entrada Therapeutics, Inc. | Buy | 267 | $7.22 | $1,928 | -40.6% | Form 4 ↗ |
| Nov 10, 2025 | TRDA Entrada Therapeutics, Inc. | Buy | 25,364 | $7.21 | $182.9K | -40.6% | Form 4 ↗ |
| Sep 8, 2025 | CELC Celcuity Inc. | Buy | 13,976 | $56.22 | $785.7K | -13.3% | Form 4 ↗ |
| Sep 8, 2025 | CELC Celcuity Inc. | Buy | 151,524 | $56.22 | $8.5M | -13.3% | Form 4 ↗ |
| Sep 8, 2025 | CELC Celcuity Inc. | Buy | 388 | $58.02 | $22.5K | -13.3% | Form 4 ↗ |
| Sep 8, 2025 | CELC Celcuity Inc. | Buy | 4,212 | $58.02 | $244.4K | -13.3% | Form 4 ↗ |
| Aug 20, 2025 | MDGL Madrigal Pharmaceuticals, Inc. | Buy | 262 | $382.82 | $100.3K | -9.1% | Form 4 ↗ |
| Aug 20, 2025 | MDGL Madrigal Pharmaceuticals, Inc. | Buy | 34 | $389.00 | $13.2K | -9.1% | Form 4 ↗ |
| Aug 20, 2025 | MDGL Madrigal Pharmaceuticals, Inc. | Buy | 366 | $389.00 | $142.4K | -9.1% | Form 4 ↗ |
| Aug 20, 2025 | MDGL Madrigal Pharmaceuticals, Inc. | Buy | 231 | $389.89 | $90.1K | -9.1% | Form 4 ↗ |
| Aug 20, 2025 | MDGL Madrigal Pharmaceuticals, Inc. | Buy | 2,506 | $389.89 | $977.1K | -9.1% | Form 4 ↗ |
| Aug 20, 2025 | MDGL Madrigal Pharmaceuticals, Inc. | Buy | 862 | $392.24 | $338.1K | -9.1% | Form 4 ↗ |
| Aug 20, 2025 | MDGL Madrigal Pharmaceuticals, Inc. | Buy | 9,362 | $392.24 | $3.7M | -9.1% | Form 4 ↗ |
| Aug 20, 2025 | MDGL Madrigal Pharmaceuticals, Inc. | Buy | 480 | $380.44 | $182.6K | -9.1% | Form 4 ↗ |
| Aug 20, 2025 | MDGL Madrigal Pharmaceuticals, Inc. | Buy | 5,209 | $380.44 | $2.0M | -9.1% | Form 4 ↗ |
| Aug 20, 2025 | MDGL Madrigal Pharmaceuticals, Inc. | Buy | 176 | $380.78 | $67.0K | -9.1% | Form 4 ↗ |
| Aug 20, 2025 | MDGL Madrigal Pharmaceuticals, Inc. | Buy | 1,919 | $380.78 | $730.7K | -9.1% | Form 4 ↗ |
| Aug 20, 2025 | MDGL Madrigal Pharmaceuticals, Inc. | Buy | 873 | $381.12 | $332.7K | -9.1% | Form 4 ↗ |
| Aug 20, 2025 | MDGL Madrigal Pharmaceuticals, Inc. | Buy | 9,477 | $381.12 | $3.6M | -9.1% | Form 4 ↗ |
| Aug 20, 2025 | MDGL Madrigal Pharmaceuticals, Inc. | Buy | 105 | $382.29 | $40.1K | -9.1% | Form 4 ↗ |
| Aug 20, 2025 | MDGL Madrigal Pharmaceuticals, Inc. | Buy | 1,136 | $382.29 | $434.3K | -9.1% | Form 4 ↗ |
| Aug 20, 2025 | MDGL Madrigal Pharmaceuticals, Inc. | Buy | 2,838 | $382.82 | $1.1M | -9.1% | Form 4 ↗ |
| Aug 20, 2025 | MDGL Madrigal Pharmaceuticals, Inc. | Buy | 373 | $383.79 | $143.2K | -9.1% | Form 4 ↗ |
| Aug 20, 2025 | MDGL Madrigal Pharmaceuticals, Inc. | Buy | 4,049 | $383.79 | $1.6M | -9.1% | Form 4 ↗ |
| Aug 20, 2025 | MDGL Madrigal Pharmaceuticals, Inc. | Buy | 1,248 | $385.06 | $480.6K | -9.1% | Form 4 ↗ |
| Aug 20, 2025 | MDGL Madrigal Pharmaceuticals, Inc. | Buy | 13,545 | $385.06 | $5.2M | -9.1% | Form 4 ↗ |
| Aug 20, 2025 | MDGL Madrigal Pharmaceuticals, Inc. | Buy | 409 | $387.07 | $158.3K | -9.1% | Form 4 ↗ |
| Aug 20, 2025 | MDGL Madrigal Pharmaceuticals, Inc. | Buy | 4,441 | $387.07 | $1.7M | -9.1% | Form 4 ↗ |
| Aug 18, 2025 | MDGL Madrigal Pharmaceuticals, Inc. | Buy | 26,704 | $372.87 | $10.0M | -8.1% | Form 4 ↗ |
| Aug 18, 2025 | MDGL Madrigal Pharmaceuticals, Inc. | Buy | 675 | $374.43 | $252.7K | -8.1% | Form 4 ↗ |
| Aug 18, 2025 | MDGL Madrigal Pharmaceuticals, Inc. | Buy | 7,325 | $374.43 | $2.7M | -8.1% | Form 4 ↗ |
| Aug 18, 2025 | MDGL Madrigal Pharmaceuticals, Inc. | Buy | 2,460 | $372.87 | $917.3K | -8.1% | Form 4 ↗ |
| Jun 30, 2025 | KYMR Kymera Therapeutics, Inc. | Buy | 600,309 | $44.00 | $26.4M | +170.2% | Form 4 ↗ |
| Jun 30, 2025 | KYMR Kymera Therapeutics, Inc. | Buy | 55,191 | $44.00 | $2.4M | +170.2% | Form 4 ↗ |
| Feb 28, 2025 | ONC BeOne Medicines Ltd. | Sale | 60,851 | $260.00 | $15.8M | +26.3% | Form 4 ↗ |
| Feb 28, 2025 | ONC BeOne Medicines Ltd. | Sale | 671,976 | $260.00 | $174.7M | +26.3% | Form 4 ↗ |
| Dec 16, 2024 | BCYC Bicycle Therapeutics plc | Buy | 457,631 | $15.34 | $7.0M | -102.0% | Form 4 ↗ |
| Dec 16, 2024 | BCYC Bicycle Therapeutics plc | Buy | 42,369 | $15.34 | $649.9K | -102.0% | Form 4 ↗ |
| Dec 13, 2024 | BCYC Bicycle Therapeutics plc | Buy | 5,573 | $13.63 | $76.0K | -100.4% | Form 4 ↗ |
| Dec 13, 2024 | BCYC Bicycle Therapeutics plc | Buy | 59,995 | $13.63 | $817.7K | -100.4% | Form 4 ↗ |
| Dec 13, 2024 | BCYC Bicycle Therapeutics plc | Buy | 22,722 | $13.72 | $311.7K | -100.4% | Form 4 ↗ |
| Dec 13, 2024 | BCYC Bicycle Therapeutics plc | Buy | 244,587 | $13.72 | $3.4M | -100.4% | Form 4 ↗ |
| Dec 13, 2024 | BCYC Bicycle Therapeutics plc | Buy | 52,656 | $13.80 | $726.7K | -100.4% | Form 4 ↗ |
| Dec 13, 2024 | BCYC Bicycle Therapeutics plc | Buy | 566,814 | $13.80 | $7.8M | -100.4% | Form 4 ↗ |
| Dec 13, 2024 | BCYC Bicycle Therapeutics plc | Buy | 30,241 | $13.50 | $408.3K | -100.4% | Form 4 ↗ |
| Dec 13, 2024 | BCYC Bicycle Therapeutics plc | Buy | 2,809 | $13.50 | $37.9K | -100.4% | Form 4 ↗ |
Each row links to its Form 4. Since trade compares the stock’s move from the close on the trade date (or the next trading day) to its latest close with the S&P 500 over the same days, adjusted for splits and excluding dividends. It describes the stock, not what the trader made: we don’t know their purchase price, position size or later sales. A dash means the trade isn’t matched to a listed stock, or there is no closing price after it yet.
When several people report on the same filing, we list it under the first one named, so trades by someone usually listed second may be missing here. Information, not investment advice: see the disclaimer.