| $350M | ||
| $217M | ||
| $172M | ||
| $109M | ||
| $107M | ||
| $104M |
Buys | $2,739,181 | 10 | 42 |
Sells | $8,293,800 | 14 | 58 |
| Tempus AI, Inc. | 10 percent owner | 10 | $2.74M | 0 | $0 | $2.74M |
| Moore Stephen Michael | SVP and Chief Legal Officer | 0 | $0 | 1 | $33,543 | $-33,543 |
| Chen Richard | President and CMO | 0 | $0 | 2 | $1.58M | $-1.58M |
| Tachibana Aaron | CFO AND COO | 0 | $0 | 7 | $2.85M | $-2.85M |
| Hall Christopher M | PRESIDENT AND CEO | 0 | $0 | 5 | $4.09M | $-4.09M |
Personalis, Inc. operates globally as a specialized cancer genomics firm. The company delivers advanced sequencing and data analysis capabilities, primarily supporting the development of novel cancer treatments and facilitating extensive genetic research initiatives. Central to their offerings is the NeXT Platform, which enables detailed data analysis of tumors and their surrounding immune microenvironments, even from small tissue or plasma samples. This platform encompasses several specialized solutions: ImmunoID Next for tissue-based tumor …
Over the last 12 months, insiders at Personalis, Inc. have bought $2.74M and sold $8.29M worth of Personalis, Inc. stock.
On average, over the past 5 years, insiders at Personalis, Inc. have bought $6.85M and sold $2.66M worth of stock each year.
Highest buying activity among insiders over the last 12 months: Tempus AI, Inc. (10 percent owner) — $2.74M.
The last purchase of 28,000 shares for transaction amount of $250,040 was made by Tempus AI, Inc. (10 percent owner) on 2025‑12‑22.
| 2026-09-18 | Sale | Hall Christopher M | Chief Executive Officer | 7,459 0.0069% | $16.22 | $120,985 | -2.50% | |
| 2026-09-18 | Sale | Tachibana Aaron | CFO AND COO | 2,931 0.0027% | $16.22 | $47,541 | -2.50% | |
| 2026-09-18 | Sale | Chen Richard | President and CMO | 3,998 0.0037% | $16.22 | $64,848 | -2.50% | |
| 2026-09-18 | Sale | Moore Stephen Michael | SVP and Chief Legal Officer | 2,068 0.0019% | $16.22 | $33,543 | -2.50% | |
| 2026-07-15 | Sale | Chen Richard | President and CMO | 100,000 0.1135% | $15.15 | $1.51M | +0.92% | |
| 2026-07-09 | Sale | Hall Christopher M | Chief Executive Officer | 100,000 0.1203% | $15.08 | $1.51M | +8.62% | |
| 2026-06-29 | Sale | Tachibana Aaron | CFO AND COO | 4,982 0.006% | $14.00 | $69,748 | +15.49% | |
| 2026-06-26 | Sale | Hall Christopher M | Chief Executive Officer | 100,000 0.1176% | $13.15 | $1.31M | +21.85% | |
| 2026-06-26 | Sale | Tachibana Aaron | CFO AND COO | 51,251 0.0604% | $13.18 | $675,488 | +21.85% | |
| 2026-06-04 | Sale | Tachibana Aaron | CFO AND COO | 40,000 0.0447% | $12.01 | $480,400 | +30.25% | |
| 2026-05-29 | Sale | Hall Christopher M | Chief Executive Officer | 80,091 0.0905% | $11.02 | $882,603 | +37.28% | |
| 2026-05-29 | Sale | Tachibana Aaron | CFO AND COO | 38,799 0.0461% | $11.58 | $449,292 | +37.28% | |
| 2026-01-22 | Sale | Tachibana Aaron | CFO AND COO | 1,201 0.0014% | $11.50 | $13,812 | -4.18% | |
| 2025-12-22 | Tempus AI, Inc. | 10 percent owner | 28,000 0.0323% | $8.93 | $250,040 | +14.56% | ||
| 2025-12-19 | Tempus AI, Inc. | 10 percent owner | 29,641 0.0328% | $8.39 | $248,688 | +16.73% | ||
| 2025-12-18 | Tempus AI, Inc. | 10 percent owner | 31,430 0.0353% | $7.91 | $248,611 | +25.73% | ||
| 2025-12-17 | Tempus AI, Inc. | 10 percent owner | 31,650 0.0362% | $7.86 | $248,769 | +28.29% | ||
| 2025-11-25 | Sale | Tachibana Aaron | CFO AND COO | 103,668 0.1293% | $10.78 | $1.12M | -12.67% | |
| 2025-11-25 | Tempus AI, Inc. | 10 percent owner | 23,600 0.029% | $10.62 | $250,665 | -12.67% | ||
| 2025-11-24 | Tempus AI, Inc. | 10 percent owner | 25,225 0.0288% | $9.87 | $248,971 | -1.85% |
| Tempus AI, Inc. | 10 percent owner | 13039067 12.2089% | $205.37M | 11 | 0 | <0.0001% |
| Lightspeed Venture Partners Select IV, L.P. | director | 1774240 1.6613% | $27.94M | 3 | 0 | +58.12% |
| LUDLUM KEN | director | 30000 0.0281% | $472,500.00 | 1 | 1 | <0.0001% |
| MYERS WOODROW A JR | director | 26116 0.0245% | $411,327.00 | 1 | 0 | +127.22% |
| RICCI PAUL | director | 20000 0.0187% | $315,000.00 | 1 | 0 | <0.0001% |
| Nieh Peter | 4750 0.0044% | $74,812.50 | 1 | 0 | <0.0001% |
| Increased Positions | 69 | +55.65% | 21M | +31.97% |
| Decreased Positions | 52 | -41.94% | 4M | -6.77% |
| New Positions | 32 | New | 3M | New |
| Sold Out Positions | 15 | Sold Out | 2M | Sold Out |
| Total Postitions | 141 | +13.71% | 81M | +25.2% |
| Merck & Co., Inc. | $110,253.00 | 15.78% | 14.04M | 0 | 0% | 2025-09-30 |
| Lightspeed Management Company, L.L.C. | $64,062.00 | 9.17% | 8.16M | 0 | 0% | 2025-09-30 |
| Ark Investment Management Llc | $62,095.00 | 8.89% | 7.91M | +802,268 | +11.29% | 2025-09-30 |
| Blackrock, Inc. | $44,312.00 | 6.34% | 5.64M | +440,806 | +8.47% | 2025-09-30 |
| Aigh Capital Management Llc | $30,553.00 | 4.37% | 3.89M | +168,143 | +4.51% | 2025-09-30 |
| Vanguard Group Inc | $23,600.00 | 3.38% | 3.01M | -130,651 | -4.17% | 2025-09-30 |
| T. Rowe Price Investment Management, Inc. | $22,636.00 | 3.24% | 2.88M | +2M | +128.05% | 2025-09-30 |
| Aberdeen Group Plc | $18,745.00 | 2.68% | 2.39M | +628,450 | +35.72% | 2025-09-30 |
| Kennedy Capital Management Llc | $15,190.00 | 2.17% | 1.94M | +1M | +196.16% | 2025-09-30 |
| Blue Water Life Science Advisors, Lp | $13,159.00 | 1.88% | 1.68M | 0 | 0% | 2025-09-30 |