# Blue Water Life Science Advisors, LP: Form 13F holdings

An institutional investment manager in LARKSPUR, CA. SEC CIK 1789778.

- Quarter ended: 2026-06-30
- Filed: 2026-08-14
- Reported value: $158.8m
- Positions: 9 (9 lines in the filing's table; lines for the same security and option type are added together here)
- Compared with: the 13F for the quarter ended 2026-03-31
- Filing: https://www.sec.gov/Archives/edgar/data/1789778/000142050626001647/

## Holdings

As filed, largest first. Reported value is what the manager stated at the quarter end (Jun 30, 2026), in US dollars; it is filing data, not a price. Weight is the share of the total reported value.

| Issuer | Class | Reported value | Weight | Shares | Put or call | Change on the quarter before |
| --- | --- | ---: | ---: | ---: | --- | --- |
| [CAREDX INC (CDNA)](/companies/cdna.md) | COM | $33.9m | 21.4% | 1,190,000 |  | Added +255,000 |
| [10X GENOMICS INC (TXG)](/companies/txg.md) | CL A COM | $24.6m | 15.5% | 642,000 |  | Reduced −448,000 |
| [PERSONALIS INC (PSNL)](/companies/psnl.md) | COM | $22.5m | 14.1% | 1,676,300 |  | Unchanged |
| [ADAPTIVE BIOTECHNOLOGIES COR (ADPT)](/companies/adpt.md) | COM | $21.7m | 13.6% | 1,010,145 |  | Unchanged |
| [GUARDANT HEALTH INC (GH)](/companies/gh.md) | COM | $17.2m | 10.8% | 114,747 |  | Reduced −127,500 |
| [QUANTERIX CORP (QTRX)](/companies/qtrx.md) | COM | $15.0m | 9.5% | 3,474,202 |  | Added +1,332,055 |
| [NATERA INC (NTRA)](/companies/ntra.md) | COM | $9.4m | 5.9% | 34,494 |  | Reduced −10,300 |
| [BILLIONTOONE INC (BLLN)](/companies/blln.md) | CL A | $8.4m | 5.3% | 70,000 |  | Added +50,000 |
| [TEMPUS AI INC (TEM)](/companies/tem.md) | CL A | $6.1m | 3.8% | 105,412 |  | Reduced −51,000 |

## Sold out

Held at the end of the quarter before and not reported this quarter.

| Issuer | Class | Reported value | Weight | Shares | Put or call | Change on the quarter before |
| --- | --- | ---: | ---: | ---: | --- | --- |
| [TWIST BIOSCIENCE CORP (TWST)](/companies/twst.md) | COM | $0 | 0.0% | 0 |  | Sold out −276,000 |

Source: SEC EDGAR, Form 13F-HR, accession 0001420506-26-001647. Last ingested by Listed: Oct 22, 2026, 05:26 ET. No prices; not investment advice.