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US INSIDER PROFILE · NON-SCORING RESEARCH
Baker Brothers Life Sciences LP
10% Owner | Director
Identity: SEC reporting-owner CIK · Reporting-owner CIK: 0001363364
Purchase history
- Companies traded
- 5
- Purchases · 12M
- 5
- Purchases · 24M
- 10
- Average purchase
- $52.5M
- Median purchase
- $36.0M
- Gross purchase value
- $525.5M
Companies: BICYCLE THERAPEUTICS PLC | Immunocore Holdings plc | Kodiak Sciences Inc. | Kymera Therapeutics, Inc. | MADRIGAL PHARMACEUTICALS, INC.
10 SEC accession(s) · 10 joint-owner event(s). Values are reported Form 4 transaction values in USD.
Qualifying purchase disclosures
| Published | Company | Ticker | Role | Reported value | SEC source |
|---|---|---|---|---|---|
| 2026-09-30 | Kodiak Sciences Inc. | KOD | Director | 10% Owner | $63.4M | Open filing |
| 2026-09-30 | Kodiak Sciences Inc. | KOD | Director | 10% Owner | $35.0M | Open filing |
| 2026-09-30 | Kodiak Sciences Inc. | KOD | Director | 10% Owner | $58.6M | Open filing |
| 2025-12-19 | Kodiak Sciences Inc. | KOD | Director | 10% Owner | $60.0M | Open filing |
| 2025-12-11 | Kymera Therapeutics, Inc. | KYMR | Director | 10% Owner | $172.5M | Open filing |
| 2025-08-20 | MADRIGAL PHARMACEUTICALS, INC. | MDGL | Director | $25.0M | Open filing |
| 2025-08-20 | MADRIGAL PHARMACEUTICALS, INC. | MDGL | Director | $36.9M | Open filing |
| 2025-06-30 | Kymera Therapeutics, Inc. | KYMR | Director | $28.8M | Open filing |
| 2025-03-19 | Immunocore Holdings plc | IMCR | Director | $24.0M | Open filing |
| 2024-12-17 | BICYCLE THERAPEUTICS PLC | BCYC | Director | 10% Owner | $21.2M | Open filing |
Post-purchase outcomes
Excess return = stock return − S&P 500 ETF (SPY adjusted close) return. Returns start on the first shared trading session on or after publication.
| Period | Completed events | Price coverage | Hit rate | Median excess return | Average excess return | Worst excess return |
|---|---|---|---|---|---|---|
| 5D | 5Developing | 50.0% (5/10) | 20.0% (1/5) | -5.8% | -2.1% | -5.8% |
| 20D | 2Small Sample | 28.6% (2/7) | 50.0% (1/2) | -4.5% | -4.5% | -11.1% |
| 60D | 2Small Sample | 28.6% (2/7) | 0.0% (0/2) | -19.8% | -19.8% | -29.9% |
| 120D | 2Small Sample | 28.6% (2/7) | 50.0% (1/2) | -11.7% | -11.7% | -43.2% |
Research patterns
- First purchase in 12M
- 1/6
- Large purchase ≥ $100k
- 10/10
- Cluster buying · 15D
- 10/10
- Buying the dip
- 1/5
Routine / opportunistic: Not classifiable. These labels never affect the score or ranking.
Small samples remain visible but are not scored. This research enrichment never affects US-v1.1.