PersonalisPSNL
13F holders, Q1 2026 (March 31)140holders +14
30new positions
19sold out
5famous investors
$6.39avg. 13F price*
At the end of Q1 2026, 140 institutions reported holding Personalis Inc. (PSNL) in their 13F filings, up 14 from Q4 2025. 30 opened new positions and 19 sold out. The largest holders were Merck & Co., Inc. ($89.5M), Lightspeed Management Company, L.L.C. ($52.0M) and ARK Investment Management ($50.6M). 5 famous investors held it, including Cathie Wood (0.4% of ARK Investment Management's portfolio), Paul Tudor Jones (0.0% of Tudor Investment Corporation's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Personalis Inc.
- CUSIP
- 71535D106
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 30 | $43.1M |
| Exits | 19 | $10.5M |
All 13F filers, Q4 2025 → Q1 2026: 11,431,140 shares bought and 8,071,909 shares sold, net +3,359,231 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 140 holders
| Merck & Co., Inc. | 25.60% | No change | 14,044,943 | $89.5M |
| Lightspeed Management Company, L.L.C. | 5.26% | No change | 8,160,734 | $52.0M |
| ARK Investment Management | 0.39% | Add +0.8% | 7,944,112 | $50.6M |
| Ameriprise Financial Inc. | 0.01% | Add +20.8% | 7,592,807 | $48.4M |
| BlackRock, Inc. | 0.00% | Add +1.3% | 5,389,885 | $34.3M |
| T. Rowe Price Investment Management, Inc. | 0.02% | Reduce -55.9% | 4,758,091 | $30.3M |
| Aberdeen Group plc | 0.04% | Add +7.3% | 3,488,308 | $22.2M |
| Deep Track Capital, LP | 0.39% | New | 3,000,000 | $19.1M |
| AIGH Capital Management LLC | 3.78% | No change | 2,900,000 | $18.5M |
| Vanguard Capital Management LLC | 0.00% | — | 2,868,463 | $18.3M |
| Kennedy Capital Management LLC | 0.29% | Add +27.5% | 2,183,572 | $13.9M |
| Blue Water Life Science Advisors, LP | 8.56% | No change | 1,676,300 | $10.7M |
| T. Rowe Price Associates Inc. | 0.00% | Add +13.9% | 1,650,141 | $10.5M |
| Casdin Capital, LLC | 0.77% | New | 1,600,000 | $10.2M |
| Geode Capital Management, LLC | 0.00% | Reduce -0.0% | 1,297,655 | $8.3M |
| State Street Corp. | 0.00% | Add +8.0% | 1,134,170 | $7.2M |
| Dimensional Fund Advisors LP | 0.00% | Add +8.4% | 1,066,248 | $6.8M |
| PFM Health Sciences, LP | 0.59% | Add +8.0% | 870,097 | $5.5M |
| Goldman Sachs Group Inc. | 0.00% | Add +115.2% | 737,132 | $4.7M |
| Portolan Capital Management, LLC | 0.25% | Add +94.3% | 736,713 | $4.7M |
| JPMorgan Chase & Co. | 0.00% | Add +2054.1% | 575,490 | $3.6M |
| Vanguard Portfolio Management LLC | 0.00% | — | 560,539 | $3.6M |
| Howland Capital Management LLC | 0.14% | No change | 547,115 | $3.5M |
| State of Michigan Retirement System | 0.02% | No change | 493,798 | $3.1M |
| Sumitomo Mitsui Trust Group, Inc. | 0.00% | Reduce -6.6% | 484,270 | $3.1M |
| Amova Asset Management Americas, Inc. | 0.04% | Reduce -6.6% | 484,270 | $3.1M |
| Millennium Management | 0.00% | New | 419,128 | $2.7M |
| Northern Trust Corp. | 0.00% | Add +14.3% | 405,800 | $2.6M |
| UBS Group AG | 0.00% | Add +25.1% | 383,503 | $2.4M |
| Nuveen, LLC | 0.00% | Add +11.3% | 343,520 | $2.2M |
| Wellington Shields Capital Management, LLC | 0.32% | Reduce -0.1% | 339,733 | $2.2M |
| Vanguard Fiduciary Trust Co. | 0.00% | — | 339,508 | $2.2M |
| IQ EQ FUND MANAGEMENT (IRELAND) Ltd | 0.16% | Add +20.8% | 323,374 | $2.1M |
| Balyasny Asset Management L.P. | 0.00% | New | 308,696 | $2.0M |
| Adage Capital Partners Gp, L.L.C. | 0.00% | New | 300,000 | $1.9M |
| Wellington Shields & Co., LLC | 0.47% | No change | 292,489 | $1.9M |
| Swiss Life Asset Management Ltd | 0.01% | New | 30,116 | $1.6M |
| Perkins Capital Management Inc. | 1.43% | No change | 239,000 | $1.5M |
| Morgan Stanley | 0.00% | Add +5.7% | 237,315 | $1.5M |
| Nano Cap New Millennium Growth Fund L P | 1.40% | Reduce -19.0% | 235,000 | $1.5M |
| Bruce & Co., Inc. | 0.42% | No change | 233,000 | $1.5M |
| First Manhattan Co. Llc. | 0.00% | Reduce -38.3% | 230,600 | $1.5M |
| Tudor Investment Corporation | 0.01% | New | 209,826 | $1.3M |
| HRT Financial LP | 0.00% | Add +113.7% | 208,891 | $1.3M |
| Royce & Associates LP | 0.01% | New | 156,036 | $994K |
| Susquehanna International Group, LLP | 0.00% | Add +382.2% | 149,336 | $951K |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -8.6% | 144,626 | $921K |
| Sei Investments Co. | 0.00% | Add +148.3% | 139,046 | $886K |
| Williams Jones Wealth Management, LLC. | 0.01% | No change | 134,072 | $854K |
| LPL Financial LLC | 0.00% | Reduce -0.3% | 132,012 | $841K |
| Bank of New York Mellon Corp | 0.00% | Add +1.4% | 124,641 | $794K |
| American Century Companies Inc. | 0.00% | Add +0.6% | 114,683 | $731K |
| Bank of America Corp. | 0.00% | Add +85.4% | 111,306 | $709K |
| TD Asset Management Inc | 0.00% | Reduce -61.1% | 105,678 | $673K |
| Swiss National Bank | 0.00% | New | 105,400 | $671K |
| Russell Investments Group, Ltd. | 0.00% | Add +2336.3% | 101,937 | $649K |
| Two Sigma Investments, LP | 0.00% | Add +179.3% | 90,711 | $578K |
| Gsa Capital Partners LLP | 0.03% | New | 82,175 | $523K |
| Royal Bank of Canada | 0.00% | Reduce -0.7% | 78,742 | $502K |
| Janney Montgomery Scott LLC | 0.00% | Add +150.0% | 75,000 | $478K |
| Green Alpha Advisors, LLC | 0.42% | Reduce -3.1% | 66,409 | $423K |
| Aquatic Capital Management LLC | 0.01% | New | 64,269 | $409K |
| AlphaCentric Advisors LLC | 0.41% | Add +34.0% | 64,032 | $408K |
| Rhumbline Advisers | 0.00% | Reduce -1.7% | 63,111 | $402K |
| Invesco Ltd. | 0.00% | Add +57.4% | 62,745 | $400K |
| FMR LLC | 0.00% | Add +1748.6% | 62,686 | $399K |
| Susquehanna Portfolio Strategies, LLC | 0.01% | Reduce -0.9% | 61,292 | $390K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +3.8% | 58,972 | $376K |
| Barclays PLC | 0.00% | Reduce -57.0% | 51,577 | $329K |
| Quadrature Capital Ltd | 0.00% | New | 38,722 | $247K |
| Pathstone Holdings, LLC | 0.00% | Reduce -1.4% | 38,449 | $245K |
| Alliancebernstein L.P. | 0.00% | No change | 28,700 | $228K |
| VANGUARD ASSET MANAGEMENT, Ltd | 0.00% | — | 35,517 | $226K |
| Vanguard Global Advisers, LLC | 0.00% | — | 34,980 | $223K |
| Deutsche Bank AG | 0.00% | Reduce -10.1% | 34,899 | $222K |
| Virtu Financial LLC | 0.01% | New | 34,434 | $219K |
| Cerity Partners LLC | 0.00% | New | 34,100 | $217K |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0.00% | Add +2360.6% | 31,126 | $198K |
| Janus Henderson Group PLC | 0.00% | New | 30,200 | $192K |
| Wells Fargo & Company | 0.00% | Reduce -54.9% | 28,975 | $185K |
| MetLife Investment Management, LLC | 0.00% | Add +50.1% | 28,002 | $178K |
| Legal & General Group Plc | 0.00% | Add +505.8% | 27,698 | $176K |
| Bridgefront Capital, LLC | 0.04% | New | 25,643 | $163K |
| ADAR1 Capital Management, LLC | 0.01% | New | 25,000 | $159K |
| Captrust Financial Advisors | 0.00% | New | 23,533 | $150K |
| Persistent Asset Partners Ltd | 0.05% | New | 20,929 | $133K |
| China Universal Asset Management Co., Ltd. | 0.01% | Add +28.3% | 18,568 | $118K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +2233.1% | 18,128 | $115K |
| SG Americas Securities, LLC | 0.00% | Reduce -60.3% | 17,731 | $113K |
| AQR Capital Management | 0.00% | Add +70.1% | 17,422 | $111K |
| US Bancorp \de | 0.00% | Reduce -13.6% | 17,344 | $110K |
| Vanguard Investments Australia, Ltd. | 0.00% | — | 16,113 | $103K |
| XTX Topco Ltd | 0.00% | Reduce -59.3% | 16,035 | $102K |
| New York State Common Retirement Fund | 0.00% | No change | 15,800 | $101K |
| Creative Planning | 0.00% | Reduce -0.1% | 15,748 | $100K |
| Renaissance Technologies | 0.00% | Reduce -83.7% | 15,200 | $97K |
| Arizona State Retirement System | 0.00% | New | 14,635 | $93K |
| Manufacturers Life Insurance Company, The | 0.00% | Reduce -9.9% | 14,179 | $90K |
| BNP Paribas Financial Markets | 0.00% | Add +1.3% | 13,634 | $87K |
| Scientech Research LLC | 0.07% | Add +9.5% | 13,575 | $86K |
"% of holder's portfolio" is PSNL's weight in each manager's 13F, not the share of Personalis Inc. the manager owns.