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, Q2 2026
Institutional positions in Personalis, Inc. as of Jun 30, 2026. 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
- 158
- +20 vs. Q1 2026
- Shares held
- 85.0M
- +380.9K (+0.5%) vs. Q1 2026
- Total value
- $1.14B
- +$598.8M (+111.2%) vs. Q1 2026
- New holders
- 42
- 68 more added
- Sold out
- 22
- 34 more reduced
2 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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, Q2 2026
Shares, value and share of portfolio for each institution holding Personalis, Inc.; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Janney Montgomery Scott LLC | 105,001 | $1.41M | 0.00% | +30,001+40.0% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 105,225 | $1.41M | 0.00% | +46,253+78.4% | Added |
| Engineers Gate Manager LP | 115,842 | $1.55M | 0.02% | +115,842 | New |
| Susquehanna Portfolio Strategies, LLC | 121,299 | $1.63M | 0.03% | +60,007+97.9% | Added |
| Russell Investments Group, Ltd. | 126,670 | $1.70M | 0.00% | +24,733+24.3% | Added |
| Jump Financial, LLC | 130,294 | $1.75M | 0.02% | +130,294 | New |
| LPL Financial LLC | 132,602 | $1.78M | 0.00% | +590+0.4% | Added |
| Williams Jones Wealth Management, LLC. | 134,072 | $1.80M | 0.02% | 00.0% | Unchanged |
| Swiss National Bank | 136,500 | $1.83M | 0.00% | +31,100+29.5% | Added |
| Citadel Advisors LLC | 144,998 | $1.94M | 0.00% | +144,998 | New |
| Nano Cap New Millennium Growth Fund L P | 157,500 | $2.11M | 1.62% | −77,500−33.0% | Reduced |
| Price T Rowe Associates Inc | 158,838 | $2.13M | 0.00% | −1,491,303−90.4% | Reduced |
| UBS Group AG | 164,761 | $2.21M | 0.00% | −218,742−57.0% | Reduced |
| Fred Alger Management, LLC | 165,579 | $2.22M | 0.01% | +165,579 | New |
| Bank of New York Mellon Corp | 189,065 | $2.53M | 0.00% | +64,424+51.7% | Added |
| Charles Schwab Investment Management Inc | 209,320 | $2.80M | 0.00% | +64,694+44.7% | Added |
| First Manhattan Co | 230,600 | $3.09M | 0.01% | 00.0% | Unchanged |
| Bruce & Co., Inc. | 233,000 | $3.12M | 0.84% | 00.0% | Unchanged |
| Perkins Capital Management Inc | 239,000 | $3.20M | 2.53% | 00.0% | Unchanged |
| StemPoint Capital LP | 247,783 | $3.32M | 0.57% | +247,783 | New |
| Tudor Investment Corp Et Al | 274,321 | $3.68M | 0.02% | +64,495+30.7% | Added |
| Gilder Gagnon Howe & Co LLC | 278,490 | $3.73M | 0.04% | +278,490 | New |
| Militia Capital Management LLC | 291,881 | $3.91M | 0.71% | +291,881 | New |
| Wellington Shields & Co., LLC | 292,489 | $3.92M | 0.88% | 00.0% | Unchanged |
| Wellington Shields Capital Management, LLC | 339,733 | $4.55M | 0.58% | 00.0% | Unchanged |
| Davy Global Fund Management Ltd | 351,741 | $4.71M | 0.30% | +28,367+8.8% | Added |
| BNP Paribas Arbitrage, SA | 364,764 | $4.89M | 0.00% | +351,130+2,575.4% | Added |
| Nikko Asset Management Americas, Inc. | 417,488 | $5.59M | 0.07% | −66,782−13.8% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 417,488 | $5.59M | 0.00% | −66,782−13.8% | Reduced |
| Millennium Management LLC | 450,160 | $6.03M | 0.00% | +31,032+7.4% | Added |
| Vanguard Fiduciary Trust Co | 453,257 | $6.07M | 0.00% | +113,749+33.5% | Added |
| State of Michigan Retirement System | 493,798 | $6.62M | 0.03% | 00.0% | Unchanged |
| Howland Capital Management LLC | 555,641 | $7.45M | 0.27% | +8,526+1.6% | Added |
| Trexquant Investment LP | 600,216 | $8.04M | 0.05% | +600,216 | New |
| Northern Trust Corp | 632,803 | $8.48M | 0.00% | +227,003+55.9% | Added |
| Vanguard Portfolio Management LLC | 659,834 | $8.84M | 0.00% | +99,295+17.7% | Added |
| Jane Street Group, LLC | 738,241 | $9.89M | 0.01% | +738,241 | New |
| Nuveen, LLC | 753,004 | $10.1M | 0.00% | +409,484+119.2% | Added |
| HRT Financial LP | 930,816 | $12.5M | 0.02% | +721,925+345.6% | Added |
| Goldman Sachs Group Inc | 931,031 | $12.5M | 0.00% | +193,899+26.3% | Added |
| Morgan Stanley | 1,270,946 | $17.0M | 0.00% | +1,033,631+435.6% | Added |
| State Street Corp | 1,487,077 | $19.9M | 0.00% | +352,907+31.1% | Added |
| Dimensional Fund Advisors LP | 1,496,983 | $20.1M | 0.00% | +430,735+40.4% | Added |
| Blue Water Life Science Advisors, LLC | 1,676,300 | $22.5M | 14.15% | 00.0% | Unchanged |
| AIGH Capital Management LLC | 1,715,000 | $23.0M | 2.08% | −1,185,000−40.9% | Reduced |
| Bank of America Corp | 1,820,541 | $24.4M | 0.00% | +1,709,235+1,535.6% | Added |
| Geode Capital Management, LLC | 1,822,445 | $24.4M | 0.00% | +524,790+40.4% | Added |
| Kennedy Capital Management, Inc. | 2,364,282 | $31.7M | 0.56% | +180,710+8.3% | Added |
| Casdin Capital, LLC | 2,550,000 | $34.2M | 1.71% | +950,000+59.4% | Added |
| Vanguard Capital Management LLC | 3,010,150 | $40.3M | 0.00% | +141,687+4.9% | Added |
| Standard Life Aberdeen plc | 3,747,290 | $50.2M | 0.07% | +258,982+7.4% | Added |
| Deep Track Capital, LP | 4,000,000 | $53.6M | 0.79% | +1,000,000+33.3% | Added |
| Ameriprise Financial Inc | 6,086,315 | $81.6M | 0.02% | −1,506,492−19.8% | Reduced |
| Lightspeed Management Company, L.L.C. | 6,101,850 | $81.8M | 3.40% | −2,058,884−25.2% | Reduced |
| BlackRock, Inc. | 7,082,491 | $94.9M | 0.00% | +1,692,606+31.4% | Added |
| ARK Investment Management LLCSuperinvestorARK Invest | 8,271,339 | $110.8M | 0.72% | +327,227+4.1% | Added |
| Merck & Co., Inc. | 14,044,943 | $188.2M | 35.75% | 00.0% | Unchanged |
| Udine Wealth Management, Inc. | 50,030 | – | – | +50,030 | New |
| T. Rowe Price Investment Management, Inc. | 0 | $0 | 0.00% | −4,758,091−100.0% | Sold out |
| PFM Health Sciences, LP | 0 | $0 | 0.00% | −870,097−100.0% | Sold out |
| Portolan Capital Management, LLC | 0 | $0 | 0.00% | −736,713−100.0% | Sold out |
| Balyasny Asset Management LLC | 0 | $0 | 0.00% | −308,696−100.0% | Sold out |
| Adage Capital Partners GP, L.L.C. | 0 | $0 | 0.00% | −300,000−100.0% | Sold out |
| Royce & Associates LP | 0 | $0 | 0.00% | −156,036−100.0% | Sold out |
| TD Asset Management Inc | 0 | $0 | 0.00% | −105,678−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −64,269−100.0% | Sold out |
| Virtu Financial LLC | 0 | $0 | 0.00% | −34,434−100.0% | Sold out |
| Bridgefront Capital, LLC | 0 | $0 | 0.00% | −25,643−100.0% | Sold out |
| Persistent Asset Partners Ltd | 0 | $0 | 0.00% | −20,929−100.0% | Sold out |
| Renaissance Technologies LLC | 0 | $0 | 0.00% | −15,200−100.0% | Sold out |
| Scientech Research LLC | 0 | $0 | 0.00% | −13,575−100.0% | Sold out |
| Axq Capital, LP | 0 | $0 | 0.00% | −12,350−100.0% | Sold out |
| International Assets Investment Management, LLC | 0 | $0 | 0.00% | −3,900−100.0% | Sold out |
| Opal Wealth Advisors, LLC | 0 | $0 | 0.00% | −3,500−100.0% | Sold out |
| Northwestern Mutual Wealth Management Co | 0 | $0 | 0.00% | −1,977−100.0% | Sold out |
| Sound Income Strategies, LLC | 0 | $0 | 0.00% | −200−100.0% | Sold out |
| Twin Peaks Wealth Advisors, LLC | 0 | $0 | 0.00% | −72−100.0% | Sold out |
| MAI Capital Management | 0 | $0 | 0.00% | −31−100.0% | Sold out |
| Swiss Life Asset Management Ltd | 0 | $0 | 0.00% | −30,116−100.0% | Sold out |
| Berbice Capital Management LLC | 0 | $0 | 0.00% | −100−100.0% | Sold out |
| Janus Henderson Group PLC | – | – | – | – | Not filed |
| CWM, LLC | – | – | – | – | Not filed |