Personalis, Inc.
PSNL- Exchange
- Nasdaq
- Industry
- Services-Medical Laboratories
- SEC CIK
- 0001527753
In the last 90 days, Personalis, Inc. insiders filed 0 open-market purchases and 6 sales; 158 institutions reported holding it in 13F filings for Q2 2026, worth $1.14B in total; ARK Invest is the only superinvestor holding it.
13F holders, Q4 2025
Institutional positions in Personalis, Inc. as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 126
- +17 vs. Q3 2025
- Shares held
- 81.0M
- +16.3M (+25.2%) vs. Q3 2025
- Total value
- $644.8M
- +$222.9M (+52.8%) vs. Q3 2025
- New holders
- 31
- 37 more added
- Sold out
- 14
- 38 more reduced
Compare with Q3 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting PSNL on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 158 | $1.14B |
| Q1 2026 | 140 | $538.8M |
| Q4 2025 | 126 | $644.8M |
| Q3 2025 | 109 | $421.8M |
| Q2 2025 | 105 | $396.6M |
| Q1 2025 | 104 | $192.4M |
| Q4 2024 | 107 | $298.2M |
| Q3 2024 | 83 | $157.6M |
| Q2 2024 | 69 | $25.7M |
| Q1 2024 | 71 | $33.2M |
| Q4 2023 | 69 | $46.1M |
| Q3 2023 | 63 | $30.0M |
| Q2 2023 | 66 | $49.0M |
| Q1 2023 | 63 | $75.0M |
| Q4 2022 | 80 | $55.0M |
| Q3 2022 | 81 | $83.9M |
| Q2 2022 | 99 | $105.6M |
| Q1 2022 | 125 | $265.3M |
| Q4 2021 | 108 | $456.2M |
| Q3 2021 | 120 | $604.2M |
| Q2 2021 | 136 | $807.9M |
| Q1 2021 | 134 | $763.1M |
Institutions, Q4 2025
Shares, value and share of portfolio for each institution holding Personalis, Inc.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Goldman Sachs Group Inc | 342,475 | $2.73M | 0.00% | −231,506−40.3% | Reduced |
| Northern Trust Corp | 354,918 | $2.83M | 0.00% | −38,866−9.9% | Reduced |
| First Manhattan Co | 373,822 | $2.98M | 0.01% | +373,822 | New |
| Portolan Capital Management, LLC | 379,197 | $3.02M | 0.16% | +379,197 | New |
| State of Michigan Retirement System | 493,798 | $3.93M | 0.02% | 00.0% | Unchanged |
| Sumitomo Mitsui Trust Holdings, Inc. | 518,441 | $4.13M | 0.00% | −72,555−12.3% | Reduced |
| Nikko Asset Management Americas, Inc. | 518,441 | $4.13M | 0.05% | −72,555−12.3% | Reduced |
| Howland Capital Management LLC | 547,115 | $4.36M | 0.17% | +216,442+65.5% | Added |
| Next Century Growth Investors LLC | 624,363 | $4.97M | 0.35% | +624,363 | New |
| PFM Health Sciences, LP | 805,817 | $6.41M | 0.65% | +805,817 | New |
| Dimensional Fund Advisors LP | 983,174 | $7.83M | 0.00% | +9,519+1.0% | Added |
| State Street Corp | 1,050,590 | $8.36M | 0.00% | +124,243+13.4% | Added |
| Geode Capital Management, LLC | 1,297,807 | $10.3M | 0.00% | −35,734−2.7% | Reduced |
| Price T Rowe Associates Inc | 1,448,585 | $11.5M | 0.00% | +1,347,439+1,332.2% | Added |
| Blue Water Life Science Advisors, LLC | 1,676,300 | $13.3M | 8.37% | 00.0% | Unchanged |
| Kennedy Capital Management, Inc. | 1,712,652 | $13.6M | 0.29% | −222,426−11.5% | Reduced |
| AIGH Capital Management LLC | 2,900,000 | $23.1M | 6.82% | −992,101−25.5% | Reduced |
| Standard Life Aberdeen plc | 3,249,895 | $25.9M | 0.04% | +861,948+36.1% | Added |
| Vanguard Group Inc | 3,253,797 | $25.9M | 0.00% | +247,387+8.2% | Added |
| BlackRock, Inc. | 5,319,508 | $42.3M | 0.00% | −325,291−5.8% | Reduced |
| Ameriprise Financial Inc | 6,287,151 | $50.0M | 0.01% | +5,988,126+2,002.6% | Added |
| ARK Investment Management LLCSuperinvestorARK Invest | 7,879,087 | $62.7M | 0.42% | −31,104−0.4% | Reduced |
| Lightspeed Management Company, L.L.C. | 8,160,734 | $65.0M | 4.65% | 00.0% | Unchanged |
| T. Rowe Price Investment Management, Inc. | 10,780,290 | $85.8M | 0.05% | +7,896,714+273.9% | Added |
| Merck & Co., Inc. | 14,044,943 | $111.8M | 40.47% | 00.0% | Unchanged |
| Berbice Capital Management LLC | 320 | – | – | 00.0% | Unchanged |
| Millennium Management LLC | 0 | $0 | 0.00% | −1,210,754−100.0% | Sold out |
| JBF Capital, Inc. | 0 | $0 | 0.00% | −166,104−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −46,193−100.0% | Sold out |
| Sanctuary Advisors, LLC | 0 | $0 | 0.00% | −39,974−100.0% | Sold out |
| Ieq Capital, LLC | 0 | $0 | 0.00% | −22,000−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −18,886−100.0% | Sold out |
| Atom Investors LP | 0 | $0 | 0.00% | −18,043−100.0% | Sold out |
| Parallel Advisors, LLC | 0 | $0 | 0.00% | −16,522−100.0% | Sold out |
| Brevan Howard Capital Management LP | 0 | $0 | 0.00% | −14,855−100.0% | Sold out |
| FourThought Financial Partners, LLC | 0 | $0 | 0.00% | −13,145−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −2,142−100.0% | Sold out |
| GPS Wealth Strategies Group, LLC | 0 | $0 | 0.00% | −1,000−100.0% | Sold out |
| Rise Advisors, LLC | 0 | $0 | 0.00% | −142−100.0% | Sold out |
| Principal Securities, Inc. | 0 | $0 | 0.00% | −134−100.0% | Sold out |