Q2 2026 13F · SEC CIK 1789778
Blue Water Life Science Advisors, LP
Hedge fundFiled 2026-08-14 for Q2 2026. Open the filing ↗ · All SEC filings ↗
- Reported 13F value
- $158.8M
- Reported positions
- 9
- Top holdings a year, 3 yrs
- +44.3%
- Assets under management
- $192.6M
Blue Water Life Science Advisors, LP is a hedge fund that reported 9 positions worth $158.8M in its Q2 2026 13F, filed 2026-08-14. Its largest holdings were Caredx Inc (CDNA, 21.4%), 10x Genomics Inc (TXG, 15.5%), Personalis Inc (PSNL, 14.1%). A portfolio copying its top holdings returned 44.3% a year over the last 3 years, against 20.4% for the S&P 500.
Blue Water Life Science Advisors, LP holdings all 9 positions.
Weights are shares of the filer's total reported 13F value, compared with Q1 2026. Share changes may reflect splits; weight changes also reflect price moves. A 13F shows long US-listed positions only, up to 135 days after the fact.
| Stock | % of 13F value | Share change | Reported value |
|---|---|---|---|
| CDNACaredx Inc | 21.4% | +27.3% | $33.9M |
| TXG10x Genomics Inc | 15.5% | -41.1% | $24.6M |
| PSNLPersonalis Inc | 14.1% | +0.0% | $22.5M |
| ADPTAdaptive Biotechnologies Corp | 13.6% | +0.0% | $21.7M |
| GHGuardant Health Inc | 10.8% | -52.6% | $17.2M |
| QTRXQuanterix Corp | 9.5% | +62.2% | $15.0M |
| NTRANatera Inc Com | 5.9% | -23.0% | $9.4M |
| BLLNBilliontoone Inc | 5.3% | +250.0% | $8.4M |
| TEMTempus Ai Inc | 3.8% | -32.6% | $6.1M |
What Blue Water Life Science Advisors, LP bought and sold in Q2 2026, against Q1 2026.
New positions
No new positions among the largest holdings.
Added to
- BLLN Billiontoone Inc+250.0% shares
- QTRX Quanterix Corp+62.2% shares
- CDNA Caredx Inc+27.3% shares
Reduced
- GH Guardant Health Inc-52.6% shares
- TXG 10x Genomics Inc-41.1% shares
- TEM Tempus Ai Inc-32.6% shares
- NTRA Natera Inc Com-23.0% shares
Sold out
- TWST Twist Bioscience Corpwas 10.5%
Share counts compared with the Q1 2026 13F; a split also changes share counts.
How the holdings did against the S&P 500.
- 1 year
- +147.9% /yr
- S&P 500 +20.1%
- 3 years
- +44.3% /yr
- S&P 500 +20.4%
- 5 years
- +3.6% /yr
- S&P 500 +11.6%
A portfolio of the filer's 20 largest 13F positions, weighted by value and rebuilt each quarter on the day the filing became public. 13Fs show long US-listed positions only, so this is an estimate of the stock picks, not the fund's reported returns.
Reported 13F value by quarter.
| Quarter | 13F value | Positions |
|---|---|---|
| Q2 2026 | $158.8M | 9 |
| Q1 2026 | $124.7M | 10 |
| Q4 2025 | $159.3M | 9 |
| Q3 2025 | $109.6M | 7 |
| Q2 2025 | $126.3M | 8 |
| Q1 2025 | $100.9M | 7 |
| Q4 2024 | $112.9M | 9 |
| Q3 2024 | $113.7M | 8 |
| Q2 2024 | $102.8M | 8 |
| Q1 2024 | $106.3M | 8 |
| Q4 2023 | $114.2M | 9 |
| Q3 2023 | $105.9M | 7 |
Questions about Blue Water Life Science Advisors, LP's portfolio
What stocks does Blue Water Life Science Advisors, LP own?
Blue Water Life Science Advisors, LP's latest 13F, for Q2 2026 and filed Aug 14, 2026, lists 9 positions worth $158.8M. The largest are Caredx Inc (CDNA) at 21.4%, 10x Genomics Inc (TXG) at 15.5%, Personalis Inc (PSNL) at 14.1%, Adaptive Biotechnologies Corp (ADPT) at 13.6% and Guardant Health Inc (GH) at 10.8%.
What did Blue Water Life Science Advisors, LP buy last quarter?
In Q2 2026, Blue Water Life Science Advisors, LP added Billiontoone Inc (BLLN) (+250.0% shares), Quanterix Corp (QTRX) (+62.2% shares) and Caredx Inc (CDNA) (+27.3% shares), compared with its Q1 2026 filing.
What did Blue Water Life Science Advisors, LP sell last quarter?
In Q2 2026, Blue Water Life Science Advisors, LP sold all of Twist Bioscience Corp (TWST), Guardant Health Inc (GH) (-52.6% shares), 10x Genomics Inc (TXG) (-41.1% shares) and Tempus Ai Inc (TEM) (-32.6% shares), compared with its Q1 2026 filing.
How has Blue Water Life Science Advisors, LP's portfolio performed?
A portfolio copying Blue Water Life Science Advisors, LP's 20 largest 13F holdings each quarter, from the day each filing was public, returned +44.3% a year over the last 3 years, against +20.4% for the S&P 500. Over 1 year: +147.9% against +20.1%. Over 5 years: +3.6% a year against +11.6%.
When is Blue Water Life Science Advisors, LP's next 13F filing due?
13F filings are due 45 days after each quarter ends. Blue Water Life Science Advisors, LP's filing for the quarter ending Sep 30, 2026 is due by Nov 14, 2026; this page updates the day after it is published.
How much money does Blue Water Life Science Advisors, LP manage?
Blue Water Life Science Advisors, LP reported $192.6M of regulatory assets under management on its latest SEC Form ADV. Its 13F, which covers only US-listed stocks and options, totals $158.8M.