Who owns Personalis, Inc.?
Institutional ownership of PSNL from SEC Form 13F filings across 120 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
120
13F holders
$739.5M
value, 2026 filers
52.7%
of shares outstanding (56.3M sh)
33
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30· % of fund = share of the manager's own book · % of co. = share of PSNL's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | ARK Investment Management LLC | 8.3M | $110.8M | 0.7% | 7.7% | +4.1% |
| 2 | BlackRock, Inc. | 7.1M | $94.9M | 0.0% | 6.6% | +31.4% |
| 3 | LIGHTSPEED MANAGEMENT COMPANY, L.L.C. | 6.1M | $81.8M | 3.4% | 5.7% | -25.2% |
| 4 | AMERIPRISE FINANCIAL INC | 6.1M | $81.6M | 0.0% | 5.7% | -19.8% |
| 5 | Deep Track Capital, LP | 4.0M | $53.6M | 0.8% | 3.7% | +33.3% |
| 6 | Aberdeen Group plc | 3.7M | $50.2M | 0.1% | 3.5% | +7.4% |
| 7 | VANGUARD CAPITAL MANAGEMENT LLC | 3.0M | $40.3M | 0.0% | 2.8% | -47.5% |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | 1.8M | $24.4M | 0.0% | 1.7% | +40.4% |
| 9 | BANK OF AMERICA CORP /DE/ | 1.8M | $24.4M | 0.0% | 1.7% | +1535.6% |
| 10 | MORGAN STANLEY | 1.3M | $17.0M | 0.0% | 1.2% | +435.6% |
| 11 | GOLDMAN SACHS GROUP INC | 931,031 | $12.5M | 0.0% | 0.9% | +26.3% |
| 12 | HRT FINANCIAL LP | 930,816 | $12,472 | 0.0% | 0.9% | +345.6% |
| 13 | Nuveen, LLC | 753,004 | $10.1M | 0.0% | 0.7% | +119.2% |
| 14 | JANE STREET GROUP, LLCNEW | 738,241 | $9.9M | 0.0% | 0.7% | new |
| 15 | VANGUARD PORTFOLIO MANAGEMENT LLC | 659,834 | $8.8M | 0.0% | 0.6% | +17.7% |
| 16 | NORTHERN TRUST CORP | 632,803 | $8.5M | 0.0% | 0.6% | +55.9% |
| 17 | VANGUARD FIDUCIARY TRUST CO | 453,257 | $6.1M | 0.0% | 0.4% | +33.5% |
| 18 | MILLENNIUM MANAGEMENT LLC | 450,160 | $6.0M | 0.0% | 0.4% | +7.4% |
| 19 | Sumitomo Mitsui Trust Group, Inc. | 417,488 | $5.6M | 0.0% | 0.4% | -13.8% |
| 20 | Amova Asset Management Americas, Inc. | 417,488 | $5.6M | 0.1% | 0.4% | -13.8% |
| 21 | BNP PARIBAS FINANCIAL MARKETS | 364,764 | $4.9M | 0.0% | 0.3% | +2575.4% |
| 22 | IQ EQ FUND MANAGEMENT (IRELAND) Ltd | 351,741 | $4.7M | 0.3% | 0.3% | +8.8% |
| 23 | Wellington Shields Capital Management, LLC | 339,733 | $4.6M | 0.6% | 0.3% | 0.0% |
| 24 | Wellington Shields & Co., LLC | 292,489 | $3.9M | 0.9% | 0.3% | 0.0% |
| 25 | GILDER GAGNON HOWE & CO LLCNEW | 278,490 | $3.7M | 0.0% | 0.3% | new |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.