Personalis, Inc. Common Stock (PSNL)
SERVICES-MEDICAL LABORATORIES
Personalis, Inc. Common Stock (PSNL) is listed on Nasdaq, where it has traded since June 20, 2019.
- Listed On
- Nasdaq
- Listed Since
- June 20, 2019
- Employees
- 260
- Market Cap
- $1.8B
About Personalis, Inc. Common Stock
Personalis Inc is a provider of genomic sequencing and analytics solutions to support the development of personalized cancer vaccines and other next-generation cancer immunotherapies. It has one segment, the sale of sequencing and data analysis services. The company' products include ImmunoID NeXT, NeXT Personal, NeXT Dx Test, and other pharma research solutions.
Institutional ownership
In 13F filings for the quarter ended June 30, 2026, 150 institutions reported holding PSNL, with 84.9 million shares worth $1.1 billion in aggregate. The largest reported holder was Merck & Co, with 14.0 million shares worth $188.2 million. Of the 5 largest holders listed below, 2 added shares, 2 reduced their positions and 1 held its position unchanged during the quarter.
| Institution | Shares | Value | Quarter change |
|---|---|---|---|
| Merck & Co | 14,044,943 | $188M | Unchanged |
| ARK Invest | 8,271,339 | $111M | Added 4.12% |
| BlackRock | 7,082,491 | $95M | Added 31.4% |
| Lightspeed Management Company, | 6,101,850 | $82M | Reduced 25.23% |
| Ameriprise Financial | 6,086,315 | $82M | Reduced 19.84% |
Form 13F is a quarterly report that institutional investment managers with at least $100 million in qualifying securities file with the SEC. It lists long positions as of the last day of the quarter and is due within 45 days of quarter end, so these holdings describe that date rather than today.
Frequently asked questions
What is PSNL?
Personalis, Inc. Common Stock (PSNL) is listed on Nasdaq, where it has traded since June 20, 2019.
Who are the largest institutional holders of PSNL?
In 13F filings for the quarter ended June 30, 2026, the largest reported holders of PSNL were Merck & Co, ARK Invest and BlackRock.
How many institutions own PSNL?
150 institutions reported a position in PSNL for the quarter ended June 30, 2026, worth $1.1 billion in total.
Did institutions buy or sell PSNL last quarter?
Of the 5 largest reported holders, 2 added shares, 2 reduced their positions and 1 held its position unchanged during the quarter. Every reported holder and its change is on the SentiSense ownership page for PSNL.
Every reported institutional holder, plus insider and congressional trades in PSNL, on SentiSense.