Overview
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- TickerPSNL on Nasdaq1
- IndustryServices-Medical Laboratories1
- HeadquartersMenlo Park1
- Websitewww.personalis.com
- Legal formDelaware corporation1
- Incorporated inDE4
- Business address6600 Dumbarton Circle, Fremont, Ca 945554
- Filer categoryNon-accelerated filer, Smaller reporting company4
- LEI549300EZ2NYFK7H0US483
- StatusActive3
- LEI statusLapsed (not renewed)3
- Registered addressC/O Incorporating Services, Ltd., 19901 Dover, United States3
- Registered withDivision of Corporations, Department of State, 49430633
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Personalis develops, markets, and sells advanced cancer genomic testing services. Our testing services are used by physicians to detect residual or recurrent cancer in patients, monitor cancer response to therapy, and uncover insights for therapy selection. Our testing services are used by pharmaceutical companies for translational research, biomarker discovery, the development of personalized cancer therapies, and clinical trials. We also provide whole exome sequencing services for other diagnostic companies and whole genome sequencing services for population sequencing initiatives.6 From its latest annual report
Financials
From the company’s reports to the SEC. Every number links to the filing it came from.
Key numbers, fiscal 2025
Where the money goes
Where each dollar of revenue went, fiscal 2025
- Cost of revenue34¢$53.9M
- Research and development32¢$50.3M
- Selling, general and admin34¢$53.6M
- Interest0¢$205.0K
- Income tax0¢$21.0K
Out of $69.6M in revenue.7 The company lost money this year.
Financial statements
Every line of the income statement as filed: the last 2 fiscal years, latest first.7
| Period ending | 2025-12-31 | 2024-12-31 |
|---|---|---|
| Cost of revenue | $53.9M | $57.8M |
| Research and development | $50.3M | $48.9M |
| Selling, general and administrative | $53.6M | $46.2M |
| Total costs and expenses | $157.7M | $152.9M |
| Loss from operations | -$88.1M | -$68.3M |
| Interest income | $7.2M | $5.5M |
| Interest expense | -$205.0K | -$24.0K |
| Other income (expense), net | -$142.0K | -$18.5M |
| Loss before income taxes | -$81.2M | -$81.3M |
| Provision for income taxes | $21.0K | $18.0K |
| Net loss | -$81.3M | -$81.3M |
| Net loss per share, basic | -$0.91 | -$1.37 |
| Net loss per share, diluted | -$0.91 | -$1.37 |
| Weighted-average shares outstanding, basic | 89.2M shares | 59.3M shares |
| Weighted-average shares outstanding, diluted | 89.2M shares | 59.3M shares |
| Revenue | $69.6M | $84.6M |
No quarter-by-quarter statement was filed.
Every line of the balance sheet as filed: the last 3 fiscal years (annual) or 3 quarters (quarterly), latest first.7
| Period ending | 2025-12-31 | 2024-12-31 | 2023-12-31 |
|---|---|---|---|
| Cash and cash equivalents | $124.2M | $91.4M | |
| Short-term investments | $115.7M | $93.6M | |
| Accounts receivable, net | $16.2M | $8.1M | $17.7M |
| Inventory and other deferred costs | $6.1M | $5.9M | |
| Prepaid expenses and other current assets | $5.7M | $3.9M | |
| Total current assets | $268.0M | $203.0M | |
| Property and equipment, net | $44.8M | $48.3M | |
| Operating lease right-of-use assets | $15.1M | $16.5M | |
| Other long-term assets | $6.3M | $2.5M | |
| Total assets | $334.2M | $270.3M | |
| Accounts payable | $13.0M | $6.4M | |
| Contract liabilities | $1.6M | $3.1M | $3.3M |
| Total current liabilities | $39.6M | $31.1M | |
| Long-term operating lease liabilities | $31.9M | $34.9M | |
| Total liabilities | $73.0M | $67.3M | |
| Common stock, $0.0001 par value - 200,000,000 shares authorized; 102,475,891and 85,171,146 shares issued and outstanding, respectively | $10.0K | $9.0K | |
| Additional paid-in capital | $892.3M | $753.0M | |
| Accumulated other comprehensive income (loss) | $104.0K | -$23.0K | |
| Accumulated deficit | -$631.3M | -$550.0M | |
| Total stockholders equity | $261.2M | $203.0M | $129.4M |
| Total liabilities and stockholders equity | $334.2M | $270.3M | |
| Preferred stock, par value | $0.00 | $0.00 | |
| Preferred stock, shares authorized | 10.0M shares | 10.0M shares | |
| Preferred stock, shares issued | 0 shares | 0 shares | |
| Common stock, par value | $0.00 | $0.00 | |
| Common stock, shares authorized | 200.0M shares | 200.0M shares | |
| Common stock, shares, issued | 102.5M shares | 85.2M shares | |
| Common stock, shares, outstanding | 102.5M shares | 85.2M shares | |
| Accrued and other current liabilities | $25.1M | $21.6M | |
| Other long-term liabilities | $1.5M | $1.3M |
| Period ending | 2025-12-31 | 2024-12-31 | 2023-12-31 |
|---|---|---|---|
| Cash and cash equivalents | $124.2M | $91.4M | |
| Short-term investments | $115.7M | $93.6M | |
| Accounts receivable, net | $16.2M | $8.1M | $17.7M |
| Inventory and other deferred costs | $6.1M | $5.9M | |
| Prepaid expenses and other current assets | $5.7M | $3.9M | |
| Total current assets | $268.0M | $203.0M | |
| Property and equipment, net | $44.8M | $48.3M | |
| Operating lease right-of-use assets | $15.1M | $16.5M | |
| Other long-term assets | $6.3M | $2.5M | |
| Total assets | $334.2M | $270.3M | |
| Accounts payable | $13.0M | $6.4M | |
| Contract liabilities | $1.6M | $3.1M | $3.3M |
| Total current liabilities | $39.6M | $31.1M | |
| Long-term operating lease liabilities | $31.9M | $34.9M | |
| Total liabilities | $73.0M | $67.3M | |
| Common stock, $0.0001 par value - 200,000,000 shares authorized; 102,475,891and 85,171,146 shares issued and outstanding, respectively | $10.0K | $9.0K | |
| Additional paid-in capital | $892.3M | $753.0M | |
| Accumulated other comprehensive income (loss) | $104.0K | -$23.0K | |
| Accumulated deficit | -$631.3M | -$550.0M | |
| Total stockholders equity | $261.2M | $203.0M | $129.4M |
| Total liabilities and stockholders equity | $334.2M | $270.3M | |
| Preferred stock, par value | $0.00 | $0.00 | |
| Preferred stock, shares authorized | 10.0M shares | 10.0M shares | |
| Preferred stock, shares issued | 0 shares | 0 shares | |
| Common stock, par value | $0.00 | $0.00 | |
| Common stock, shares authorized | 200.0M shares | 200.0M shares | |
| Common stock, shares, issued | 102.5M shares | 85.2M shares | |
| Common stock, shares, outstanding | 102.5M shares | 85.2M shares | |
| Accrued and other current liabilities | $25.1M | $21.6M | |
| Other long-term liabilities | $1.5M | $1.3M |
Cash flow is reported year to date, not quarter by quarter, so there are no separate quarterly figures.
Every line of the cash flow as filed: the last 2 fiscal years, latest first.7
| Period ending | 2025-12-31 | 2024-12-31 |
|---|---|---|
| Net loss | -$81.3M | -$81.3M |
| Stock-based compensation expense | $9.4M | $10.7M |
| Depreciation and amortization | $10.0M | $10.9M |
| Noncash operating lease cost | $1.3M | $1.4M |
| Noncash gain related to liability | $18.3M | |
| Amortization of discount on short-term investments | -$4.0M | -$2.7M |
| Other | -$302.0K | $93.0K |
| Accounts receivable | -$8.1M | $9.6M |
| Inventories and other deferred costs | -$204.0K | $4.4M |
| Prepaid expenses and other assets | -$2.2M | $1.1M |
| Accounts payable | $4.5M | -$8.9M |
| Accrued and other current liabilities | $2.3M | -$2.4M |
| Contract liabilities | -$1.5M | -$4.1M |
| Operating lease liabilities | -$3.8M | -$3.5M |
| Other long-term liabilities | -$1.2M | $1.2M |
| Net cash used in operating activities | -$74.9M | -$45.1M |
| Purchases of available-for-sale debt securities | -$210.2M | -$121.7M |
| Proceeds from maturities of available-for-sale debt securities | $192.1M | $88.0M |
| Purchases of property and equipment | -$4.5M | -$1.6M |
| Proceeds from sales of property and equipment | $242.0K | |
| Net cash used in investing activities | -$22.6M | -$35.1M |
| Proceeds from sales of common stock under ATM facility, net of commissions | $126.8M | $30.1M |
| Proceeds from exercise of Tempus Warrants | $18.4M | |
| Proceeds from sale of common stock under Tempus Investment Agreement | $17.7M | |
| Proceeds from sale of common stock under Merck Investment Agreement | $50.0M | |
| Payment of costs related to Tempus and Merck Investment Agreements | -$189.0K | -$1.2M |
| Proceeds from loans | $2.6M | |
| Repayments of loans | -$2.0M | -$1.1M |
| Proceeds from issuance of common stock under equity incentive plans | $3.1M | $770.0K |
| Net cash provided by financing activities | $130.3M | $114.7M |
| Effect of exchange rates on cash, cash equivalents and restricted cash | $6.0K | -$22.0K |
| Net change in cash, cash equivalents and restricted cash | $32.8M | $34.4M |
| Cash paid for income taxes, net of refunds | $23.0K | $38.0K |
| Acquisition of property and equipment included in accounts payable and accrued liabilities | $2.5M | $473.0K |
| Finance lease assets obtained in exchange for finance lease liabilities | $3.2M |
No quarter-by-quarter statement was filed.
Corporate structure
Personalis (United States) sits at the top of its group. 2 entities, 2 countries on record. Switch between the flow chart and the network, and select any entity to see its details.
Major holders of Personalis (United States)
- Ameriprise Financial Filed SCHEDULE 13G/A on Personalis (United States), latest Aug 14, 2026 (2 filings since Feb 17, 2026)
- Deep Track Capital, LP Filed SCHEDULE 13G/A on Personalis (United States), latest Aug 14, 2026 (2 filings since May 12, 2026)
- BlackRock Filed SCHEDULE 13G on Personalis (United States), latest Jul 29, 2026 (8 filings since Feb 3, 2022)
- Tempus AI Filed SCHEDULE 13D/A on Personalis (United States), latest Jul 21, 2026 (5 filings since Dec 5, 2023)
- Lightspeed Venture Partners Select IV, L.P. Filed SCHEDULE 13D/A on Personalis (United States), latest Jun 10, 2026
- T. Rowe Price Investment Management, Inc. Filed SCHEDULE 13G/A on Personalis (United States), latest Apr 8, 2026 (2 filings since Jan 8, 2026)
- Orin Hirschman Filed SCHEDULE 13G/A on Personalis (United States), latest Jan 29, 2026 (4 filings since Jul 26, 2024)
- ARK Investment Management LLC Filed SCHEDULE 13G/A on Personalis (United States), latest May 14, 2025 (6 filings since Feb 9, 2022)
- Merck & Co. Filed SCHEDULE 13G on Personalis (United States), latest Dec 23, 2024
- LIGHTSPEED VENTURE PARTNERS VIII LP Filed SC 13D/A on Personalis (United States), latest Jun 28, 2024 (2 filings since Mar 7, 2022)
- JPMorgan Chase Filed SC 13G/A on Personalis (United States), latest Dec 7, 2023 (3 filings since Jan 14, 2022)
- Personalis (United States) Menlo Park, California, United States
- Personalis (UK) Ltd. Subsidiary · United Kingdom
Built from parent and subsidiary links from GLEIF, the Global Legal Entity Identifier Foundation (CC0); subsidiaries listed in Exhibit 21 of annual reports filed with the SEC; major holders from Schedules 13D and 13G. Each entity in the chart links to its source.
What it owns
What Personalis (United States) reports owning in its annual reports to the SEC: buildings, land and equipment, real estate and locations, investments, intangible assets and inventory, at the end of its latest fiscal year and a year before.
Property and equipment
| Item | Latest | A year before | Change |
|---|---|---|---|
| Property and equipment, before depreciation | $98.7M7 Dec 31, 2025 | $94.3M7 Dec 31, 2024 | +4.7% |
| Accumulated depreciation | $53.9M7 Dec 31, 2025 | $46.0M7 Dec 31, 2024 | +17.1% |
| Property and equipment, net | $44.8M7 Dec 31, 2025 | $48.3M7 Dec 31, 2024 | −7.2% |
| Finance-lease assets | $3.1M7 Dec 31, 2025 | ||
| Operating-lease assets (leased space) | $15.1M7 Dec 31, 2025 | $16.5M7 Dec 31, 2024 | −8.1% |
Investments
| Item | Latest | A year before | Change |
|---|---|---|---|
| Cash and cash equivalents | $124.2M7 Dec 31, 2025 | $91.4M7 Dec 31, 2024 | +35.9% |
| Marketable securities, current | $115.7M7 Dec 31, 2025 | $93.6M7 Dec 31, 2024 | +23.6% |
Inventory
Properties, in its own words
Our corporate headquarters is located in Fremont, California, and comprised of 100,000 square feet of space, pursuant to a lease that expires in 2036. The lease includes two options to extend the term for a period of five-years per option, at prevailing market rates. This facility is used for our CLIA-certified and CAP-accredited laboratory operations, research and development, and corporate functions.
We also lease 31,280 square feet of space in Menlo Park, California, pursuant to a lease that expires in 2027. This facility was previously used for laboratory operations and our former corporate headquarters. We moved all laboratory operations to the Fremont facility during the third quarter of 2023 and are actively marketing the space for sublease.
The rest of Item 2
We believe that our facilities are sufficient to meet our current and foreseeable future needs. We also believe we will be able to obtain additional space, as needed, on commercially reasonable terms.
Item 2 of the 10-K filed Feb 26, 2026.6
Leadership
Who has led Personalis (United States), and when. Pick a name to see everywhere that person has worked.
President
Chief financial officer
Chief operating officer
- PresidentRichard Chen Mar 17, 2026 to now15
- Chief financial officerAaron Tachibana Jun 19, 2019 to now16
- Chief operating officerAaron Tachibana Mar 17, 2023 to now17
Board members and other officers (13)
- Chief Business OfficerClinton Musil Jun 19, 2019 to Mar 18, 202018
- Chief Scientific OfficerRichard Chen Jun 19, 2019 to now19
- Board memberKenneth J. Widder Jun 14, 2023 to now20
- Board memberOlivia Kyusuk Bloom Mar 1, 2022 to now21
- Board memberLonnie Shoff Aug 4, 2022 to now22
- Board memberWoodrow A. Myers Jr. Mar 8, 2021 to now23
- Board memberA. Blaine Bowman Jun 19, 2019 to now24
- Board memberAlan Colowick Jun 19, 2019 to May 19, 202325
- Board memberJonathan Macquitty Jun 19, 2019 to May 18, 202126
- Board memberKen Ludlum Jun 19, 2019 to May 19, 202227
- Board memberPatrick J. Balthrop Jun 19, 2019 to May 19, 202028
- Board memberPaul Ricci Jun 19, 2019 to May 19, 202029
- Board memberKarin Eastham Sep 16, 2019 to now30
Subsidiaries and ownership
Subsidiaries (Exhibit 21)
- Personalis (UK) Ltd. United Kingdom5
The subsidiaries the company lists in Exhibit 21 of its annual report, as filed.
Timeline
- Oct 6, 20268-K Other events31
- Aug 20, 20268-K Other events32
- Aug 4, 20268-K Results of operations33
- Jul 20, 20268-K Results of operations; Regulation FD disclosure34
- Jul 20, 20268-K Entered a material agreement35
- May 20, 20268-K Other events36
- May 13, 20268-K Other events37
- May 13, 20268-K Shareholder vote38
- May 7, 20268-K Results of operations39
- Mar 17, 20268-K Executive or director change40
- Feb 26, 20268-K Results of operations41
- Jan 8, 20268-K Results of operations42
- 2011Founded Founded1
Calendar
Coming up
- Nov 3, 2026Reports results for the quarter ending Sep/2026 A year earlier it reported ($0.24) a share, on Nov 4, 2025.43
When it reported results
- Aug 4, 2026Reported quarterly or annual results33
- Jul 20, 2026Reported quarterly or annual results34
- May 7, 2026Reported quarterly or annual results39
- Feb 26, 2026Reported quarterly or annual results41
- Jan 8, 2026Reported quarterly or annual results42
- Nov 4, 2025Reported quarterly or annual results44
- Aug 5, 2025Reported quarterly or annual results45
- May 6, 2025Reported quarterly or annual results46
Upcoming dates from Nasdaq's calendar; past results from the company's 8-K filings (Item 2.02). The full markets calendar
Filings
362 filings to the SEC since October 2021: 5 annual reports, 15 quarterly reports, 61 major events, 186 insider forms, 36 large holders, 59 other. The latest 20:
- Oct 6, 2026425 EDGAR
- Oct 6, 20268-K EDGAR
- Oct 2, 2026CT ORDER EDGAR
- Oct 2, 2026SC 13E3/A EDGAR
- Sep 22, 20264 EDGAR
- Sep 22, 20264 EDGAR
- Sep 22, 20264 EDGAR
- Sep 22, 20264 EDGAR
- Aug 31, 2026SC 13E3 EDGAR
- Aug 20, 20268-K EDGAR
- Aug 14, 2026SCHEDULE 13G/A EDGAR
- Aug 14, 2026SCHEDULE 13G/A EDGAR
- Aug 4, 202610-Q EDGAR
- Aug 4, 20268-K EDGAR
- Jul 29, 2026SCHEDULE 13G EDGAR
- Jul 21, 2026SCHEDULE 13D/A EDGAR
- Jul 20, 2026425 EDGAR
- Jul 20, 20268-K EDGAR
- Jul 20, 2026425 EDGAR
- Jul 20, 20268-K EDGAR
The 362 filings since October 2021 can be filtered by form type and year here when JavaScript is on.
Every filing from the last five years, summarized. The full record is on SEC EDGAR.
Insider trades
121 open-market trades by officers, directors and large owners since October 2021: 14 buys and 107 sales. Grants, option exercises and gifts are left out.
| Date | Who | Trade | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|
| Sep 18, 2026 | Moore Stephen MichaelSVP and Chief Legal Officer | Sale | 2,068 | $16.22 | $33.5K | Form 4 |
| Sep 18, 2026 | Chen RichardPresident and CMO | Sale | 3,998 | $16.22 | $64.8K | Form 4 |
| Sep 18, 2026 | Hall Christopher MChief Executive Officer | Sale | 7,459 | $16.22 | $121.0K | Form 4 |
| Sep 18, 2026 | Tachibana AaronCFO AND COO | Sale | 2,931 | $16.22 | $47.5K | Form 4 |
| Jul 15, 2026 | Chen RichardPresident and CMO | Sale | 100,000 | $15.15 | $1.5M | Form 4 |
| Jul 9, 2026 | Hall Christopher MChief Executive Officer | Sale | 100,000 | $15.08 | $1.5M | Form 4 |
| Jun 29, 2026 | Tachibana AaronCFO AND COO | Sale | 4,982 | $14.00 | $69.7K | Form 4 |
| Jun 26, 2026 | Hall Christopher MChief Executive Officer | Sale | 100,000 | $13.15 | $1.3M | Form 4 |
| Jun 26, 2026 | Tachibana AaronCFO AND COO | Sale | 51,251 | $13.18 | $675.5K | Form 4 |
| Jun 4, 2026 | Tachibana AaronCFO AND COO | Sale | 40,000 | $12.01 | $480.4K | Form 4 |
| May 29, 2026 | Hall Christopher MChief Executive Officer | Sale | 80,091 | $11.02 | $882.6K | Form 4 |
| May 29, 2026 | Tachibana AaronCFO AND COO | Sale | 38,799 | $11.58 | $449.3K | Form 4 |
| May 28, 2026 | Hall Christopher MChief Executive Officer | Sale | 19,909 | $11.02 | $219.4K | Form 4 |
| Jan 22, 2026 | Tachibana AaronCFO AND COO | Sale | 1,201 | $11.50 | $13.8K | Form 4 |
| Dec 22, 2025 | Tempus AI, Inc.10% owner | Buy | 28,000 | $8.93 | $250.0K | Form 4 |
| Dec 19, 2025 | Tempus AI, Inc.10% owner | Buy | 29,641 | $8.39 | $248.7K | Form 4 |
| Dec 18, 2025 | Tempus AI, Inc.10% owner | Buy | 31,430 | $7.91 | $248.6K | Form 4 |
| Dec 17, 2025 | Tempus AI, Inc.10% owner | Buy | 31,650 | $7.86 | $248.8K | Form 4 |
| Nov 25, 2025 | Tachibana AaronCFO AND COO | Sale | 103,668 | $10.78 | $1.1M | Form 4 |
| Nov 25, 2025 | Tempus AI, Inc.10% owner | Buy | 23,600 | $10.62 | $250.7K | Form 4 |
All 121 trades can be filtered by person here when JavaScript is on.
From Forms 4 filed with the SEC.
Major holders
Investors who own more than 5% of the shares must tell the SEC: a 13D if they may seek to influence the company, a 13G if they hold passively.
- Ameriprise FinancialSCHEDULE 13G/A, 2 filings Feb 17, 2026 to Aug 14, 202647
- Deep Track Capital, LPSCHEDULE 13G/A, 2 filings May 12, 2026 to Aug 14, 202648
- BlackRockSCHEDULE 13G, 8 filings Feb 3, 2022 to Jul 29, 202649
- Tempus AISCHEDULE 13D/A, 5 filings Dec 5, 2023 to Jul 21, 202650
- Lightspeed Venture Partners Select IV, L.P.SCHEDULE 13D/A, 1 filing Jun 10, 202651
- T. Rowe Price Investment Management, Inc.SCHEDULE 13G/A, 2 filings Jan 8, 2026 to Apr 8, 202652
- Orin HirschmanSCHEDULE 13G/A, 4 filings Jul 26, 2024 to Jan 29, 202653
- ARK Investment Management LLCSCHEDULE 13G/A, 6 filings Feb 9, 2022 to May 14, 202554
- Merck & Co.SCHEDULE 13G, 1 filing Dec 23, 202455
- LIGHTSPEED VENTURE PARTNERS VIII LPSC 13D/A, 2 filings Mar 7, 2022 to Jun 28, 202456
- JPMorgan ChaseSC 13G/A, 3 filings Jan 14, 2022 to Dec 7, 202357
Executive pay
What the company paid its top executives, from the summary compensation table in its proxy statement. Total pay includes salary, bonus, stock and option awards and other pay, as the company valued them.
| Year | Executive | Age | Salary | Total pay |
|---|---|---|---|---|
| 2025 | Christopher Hall | 57 | $618.0K | $3.5M58 |
| 2025 | Aaron Tachibana | 65 | $545.9K | $1.6M58 |
| 2025 | Richard ChenM.D., M.S. | 55 | $530.5K | $1.6M58 |
| 2024 | Chief Executive Officer and Director | $587.5K | $1.5M58 | |
| 2024 | Chief Financial Officer and Chief Operating Officer | $526.2K | $1.0M58 | |
| 2024 | PresidentExecutive Vice President, Research and Development and Chief Medical Officer | $511.2K | $989.4K58 |
Held by these funds
The largest holders among investment managers' 13F reports for the quarter ending Jun 30, 2026, the top 25 of 100. Change is in shares since the quarter before.
| Fund | Shares | Value | Share of the fund | Change |
|---|---|---|---|---|
| Merck & Co., Inc. | 14,044,943 | $188.2M | 35.8% | No change |
| ARK Investment Management LLC | 8,271,339 | $110.8M | 0.7% | +327,227 |
| BlackRock, Inc. | 7,082,491 | $94.9M | 0.0% | +1,692,606 |
| Lightspeed Management Company, L.l.c. | 6,101,850 | $81.8M | 3.4% | −2,058,884 |
| Ameriprise Financial Inc | 6,086,315 | $81.6M | 0.0% | −1,506,492 |
| Deep Track Capital, LP | 4,000,000 | $53.6M | 0.8% | +1,000,000 |
| Aberdeen Group plc | 3,747,290 | $50.2M | 0.1% | +258,982 |
| Vanguard Capital Management LLC | 3,010,150 | $40.3M | 0.0% | +141,687 |
| Casdin Capital, LLC | 2,550,000 | $34.2M | 1.7% | +950,000 |
| Kennedy Capital Management LLC | 2,364,282 | $31.7M | 0.6% | +180,710 |
| Geode Capital Management, LLC | 1,822,445 | $24.4M | 0.0% | +524,790 |
| Bank Of America Corp /de/ | 1,820,541 | $24.4M | 0.0% | +1,709,235 |
| AIGH Capital Management LLC | 1,715,000 | $23.0M | 2.1% | −1,185,000 |
| Blue Water Life Science Advisors, LP | 1,676,300 | $22.5M | 14.1% | No change |
| Dimensional Fund Advisors LP | 1,496,983 | $20.1M | 0.0% | +430,735 |
| State Street Corp | 1,487,077 | $19.9M | 0.0% | +352,907 |
| Morgan Stanley | 1,270,946 | $17.0M | 0.0% | +1,033,631 |
| Goldman Sachs Group Inc | 931,031 | $12.5M | 0.0% | +193,899 |
| Nuveen, LLC | 753,004 | $10.1M | 0.0% | +409,484 |
| Jane Street Group, LLC | 738,241 | $9.9M | 0.0% | New |
| Vanguard Portfolio Management LLC | 659,834 | $8.8M | 0.0% | +99,295 |
| Northern Trust Corp | 632,803 | $8.5M | 0.0% | +227,003 |
| Trexquant Investment LP | 600,216 | $8.0M | 0.0% | New |
| Howland Capital Management LLC | 555,641 | $7.4M | 0.3% | +8,526 |
| State Of Michigan Retirement System | 493,798 | $6.6M | 0.0% | No change |
13F reports cover disclosed long positions in U.S. stocks only.
Members of Congress who traded it
3 trades disclosed by members of Congress. “Vs S&P since” is the stock’s change since the trade minus the S&P 500’s.
| Date | Member | Trade | Amount | Vs S&P since | Filing |
|---|---|---|---|---|---|
| May 19, 2020 | Brian J. MastRepublican, House | Sale | $15,001 - $50,000 | +126.1% | Report |
| Apr 22, 2020 | Brian J. MastRepublican, House | Sale | $1,001 - $15,000 | +107.2% | Report |
| Feb 14, 2020 | Brian J. MastRepublican, House | Buy | $15,001 - $50,000 | −75.3% | Report |
Members report amounts as ranges, not exact figures. Returns are price-only (no dividends).
SEC filer profile
How Personalis (United States) is registered with the Securities and Exchange Commission, from its EDGAR record and the cover page of its latest annual report.
- Name on EDGARPersonalis, Inc.2
- CIK0001527753
- Employer ID (EIN)27-54110386
- Filer statusNon-accelerated filer not an emerging growth company; a smaller reporting company; not a shell company6
- Incorporated inDelaware6
- Fiscal year endsDecember 312
- Industry code (SIC)8071 Services-Medical Laboratories2
- SEC reviewing officeOffice of Industrial Applications and Services, Division of Corporation Finance2
- Business address6600 Dumbarton Circle, Fremont, CA 945552
- Phone650-752-13002
- Shares outstanding106,799,872 as of Jul 29, 202613
- Public float$578.2M as of Jun 30, 20256
- AuditorBDO USA, P.C., San Jose, California PCAOB ID 243; no auditor attestation of internal control over financial reporting6
- On EDGAR sinceAug 15, 20112
- Filings546 in all: 4 (259), 8-K (80), 3 (24), 10-Q (22), SC 13G/A (16), S-8 (11), 144 (10), CORRESP (10)2
All 40 form types
SCHEDULE 13G/A (9), 425 (8), DEFA14A (8), 10-K (7), 424B5 (7), DEF 14A (7), EFFECT (7), SC 13G (7), UPLOAD (7), S-3 (6), SCHEDULE 13G (5), 4/A (4), ARS (4), D (4), SC 13D/A (3), SCHEDULE 13D/A (3), SC 13D (2), SEC STAFF LETTER (2), 424B4 (1), 5 (1), 8-A12B (1), CERT (1), CT ORDER (1), DRS (1), DRS/A (1), DRSLTR (1), S-1 (1), S-1/A (1), S-1MEF (1), S-3ASR (1), SC 13E3 (1), SC 13E3/A (1)
- Latest filingsAnnual report (10-K) Feb 26, 2026
Quarterly report (10-Q) Aug 4, 2026
Proxy statement (DEF 14A) Apr 2, 2026
Latest 8-K (8-K) Oct 6, 2026
Securities registered for trading
| Class | Symbol | Exchange |
|---|---|---|
| Common Stock, par value $0.0001 | PSNL | The Nasdaq Global Market |
From the cover page of the 10-K filed Feb 26, 2026 (Section 12(b) of the Exchange Act).6
Risk factors and legal proceedings
The risks Personalis (United States) names in Item 1A of its 10-K filed Feb 26, 2026: 73 risks under these headings, as written.6
- Operational, Strategic and Business Risks
- We have a history of losses and we expect to incur significant losses for the foreseeable future and may not be able to generate sufficient revenue to achieve or sustain profitability.
- If we are unable to increase sales of our current services or successfully develop and commercialize other services, or if we are unable to execute our sales and marketing strategy for our testing services or unable to gain sufficient acceptance in the market, or if we are unable to generate sufficient reimbursement or coverage by insurance or governmental payors for our testing services, we may fail to generate sufficient revenue to achieve profitability and sustain our business.
- If we cannot compete successfully with our competitors, we may be unable to increase or sustain our revenue or achieve and sustain profitability.
- We have substantial customer concentration, with a limited number of customers accounting for a substantial portion of our revenue and accounts receivable; in particular, we currently derive a substantial portion of our revenue from two of our largest customers, Moderna and the VA MVP, and in the past have derived a substantial portion of our revenue from other large customers.
- We have historically derived a substantial portion of our revenue from DNA sequencing and data analysis services provided to Natera. We no longer have a material commercial relationship with Natera and, if we are unable to grow our customer base and diversify our revenue concentration, our business, financial condition, revenue and other operating results, and cash flows may be materially harmed.
- We derive a substantial portion of our revenue from DNA sequencing and data analysis services that we provide to one of our largest customers, the VA MVP. If the VA MVP’s demand for and/or funding for our DNA sequencing and data analysis services continues to be substantially reduced, or if our new contract with the VA MVP were to be terminated, our business, financial condition, revenue and other operating results, and cash flows will be materially harmed.
- If we cannot maintain our current customer relationships, or fail to acquire new customers, our revenue prospects will be reduced. Many of our customers are biopharmaceutical companies engaged in clinical trials of new drug candidates, which trials are expensive, can take many years to complete, and have inherently uncertain outcomes.
- Building our clinical laboratory business is subject to a number of reimbursement challenges and we may not be able to establish the medical necessity of our tests for coverage or reimbursement rates that cover our costs.
- We are pursuing a partner-centric strategy and have key relationships with Tempus, Myriad, Moderna and Merck, among others. These and any other partnering and/or collaboration arrangements that we have entered into or may
- enter into in the future may not be successful, or may terminate, which could adversely impact our business or affect our ability to develop and commercialize our testing services.
- We rely on a limited number of suppliers, or in some cases, a sole supplier, for some of our laboratory instruments and materials, and we may not be able to find replacements or immediately transition to alternative suppliers should we need to do so.
The other 62 risks
- International trade policies, including tariffs, sanctions and trade barriers may adversely affect our business, financial condition, results of operations and prospects.
- We have a single facility and if it becomes damaged or inoperable, or we are required to vacate our facility, our ability to sell and provide our testing services and pursue research and development efforts may be jeopardized.
- Our success depends on our ability to provide reliable and timely, high-quality genomic data and analyses and to rapidly evolve to meet our customers’ needs.
- If we cannot develop services to keep pace with rapid advances in technology, medicine, and science, or if we experience delays in developing such services, our operating results and competitive position could be harmed.
- We are researching and developing improvements to our tests and test features on a continuous basis, but we may not be able to make these improvements on a timely basis, and even if we do, we may not realize the benefits of these efforts in our financial results.
- Personalized cancer therapies represent new therapeutic approaches that could result in heightened regulatory scrutiny, delays in clinical development, or delays in or inability to achieve, regulatory approval, commercialization, or payor coverage, any of which could adversely affect our business.
- The loss of key members of our executive management team could adversely affect our business.
- We rely on highly skilled personnel in a broad array of disciplines and if we are unable to hire, retain, or motivate these individuals, or maintain our corporate culture, we may not be able to maintain the quality of our testing services or grow effectively.
- We have undertaken in the past, and may in the future undertake, internal restructuring activities that could result in disruptions to our business or otherwise harm our results of operations or financial condition.
- We may not be able to manage our future growth effectively, which could make it difficult to execute our business strategy.
- We may need to continue to invest in our infrastructure in advance of increased demand for our testing services; our failure to accurately forecast demand would have a negative impact on our business and our ability to achieve and sustain profitability.
- We may acquire businesses or assets, form joint ventures, or make investments in other companies or technologies that could harm our operating results, dilute our stockholders’ ownership, or cause us to incur debt or significant expense.
- Ethical, legal, and social concerns related to the use of genetic information could reduce demand for our tests.
- Our operations and employees face risks related to health crises that could adversely affect our operations, our financial condition, and the business or operations of our customers or other third parties with whom we conduct business.
- Expansion into international markets would subject us to increased regulatory oversight and regulatory, economic, social, health and political uncertainties, which could cause a material adverse effect on our business, financial position, and results of operations.
- Regulatory, Legal and Cybersecurity Risks
- Our tests may be subject to regulatory action if regulatory agencies or authorities determine that our tests do not appropriately comply with statutory and regulatory requirements enforced by the FDA, or equivalent foreign regulatory authorities and/or CLIA requirements for quality laboratory testing or equivalent foreign requirements.
- If the FDA determines that our tests are subject to enforcement as medical devices, or if foreign regulatory authorities regulate our tests as IVDs, we could incur substantial costs and time delays associated with satisfying statutory and regulatory requirements such as pre-market clearance, approval or certification, and we could incur additional expense in offering our tests and tests that we may develop in the future.
- Failure to comply with federal, state, and foreign laboratory licensing requirements and the applicable requirements of the FDA or any other regulatory authority, or equivalent foreign regulatory authority, could cause us to lose the ability to perform our tests, experience disruptions to our business, or become subject to administrative or judicial sanctions.
- If our information technology systems or data, or those of third parties with whom we work or our data, are or were compromised, we could experience adverse consequences resulting from such compromise, including but not limited to regulatory investigations or actions; litigation; fines and penalties; disruptions of our business operations; reputational harm; loss of revenue or profits; loss of customers or sales; and other adverse consequences.
- We are subject to stringent and evolving U.S. and foreign laws, regulations, rules, contractual obligations, industry standards, policies and other obligations related to data privacy and security. Our actual or perceived failure to comply with such obligations could lead to regulatory investigations or actions; litigation (including class claims) and mass arbitration demands; fines and penalties; disruptions of our business operations; reputational harm; loss of revenue or profits; loss of customers or sales; and other adverse business consequences.
- Our employees may engage in misconduct or other improper activities, including noncompliance with regulatory standards and requirements, which could cause significant liability for us and harm our reputation.
- Complying with numerous statutes and regulations pertaining to our business is an expensive and time-consuming process, and any failure to comply could result in substantial penalties.
- We could be adversely affected by violations of the FCPA and other worldwide anti-bribery laws.
- Changes in health care policy could increase our costs, decrease our revenue, and impact sales of and reimbursement for our tests.
- If we use hazardous materials in a manner that causes injury, we could be liable for resulting damages.
- Changes in tax laws or regulations could adversely affect our business and financial condition.
- Our effective tax rate may fluctuate, and we may incur obligations in tax jurisdictions in excess of accrued amounts.
- Our business could be negatively impacted by environmental, social and corporate governance (ESG) matters or our reporting of such matters.
- Intellectual Property Risks
- Litigation or other proceedings or third-party claims of intellectual property infringement, misappropriation or other violations may require us to spend significant time and money, and could in the future prevent us from selling our tests or impact our stock price, any of which could have a material adverse effect.
- If we cannot license rights to use technologies on reasonable terms, we may not be able to commercialize new services in the future.
- Developments or uncertainty in the patent statute, patent case law, or U.S. Patent and Trademark Office (“USPTO”), rules and regulations may impact the validity, scope or enforceability of our patent rights, thereby impairing our ability to protect our testing services.
- Patent terms may be inadequate to protect our competitive position for an adequate amount of time.
- If we are not able to obtain and enforce patent protection for any services we develop and for our technologies, or if the scope of patent protection obtained is not sufficiently broad, our competitors and other third parties could develop and commercialize services and technology similar or identical to ours, and our ability to successfully commercialize our testing services and technologies may be adversely affected.
- We have in the past been involved in legal proceedings to enforce our intellectual property rights and may in the future become involved in other lawsuits to protect or enforce our patents or other intellectual property, which could be expensive, time consuming, and unsuccessful.
- If we are unable to protect the confidentiality of our trade secrets and know-how, our business and competitive position would be harmed.
- We may not be able to enforce our intellectual property rights throughout the world.
- Obtaining and maintaining patent protection depends on compliance with various procedural, document submission, fee payment and other requirements imposed by governmental patent agencies, and our patent protection could be reduced or eliminated for non-compliance with these requirements.
- Third parties may assert that our employees or consultants have wrongfully used or disclosed confidential information or misappropriated trade secrets.
- Our use of “open source” software could subject our proprietary software to general release, adversely affect our ability to sell our testing services and subject us to possible litigation.
- If we fail to comply with our obligations under license or technology agreements with third parties, we may be required to pay damages and we could lose license rights that are critical to our business.
- We may be subject to claims challenging the inventorship of our patents and other intellectual property.
- If our trademarks and trade names are not adequately protected, then we may not be able to build name recognition in our markets of interest and our business may be adversely affected.
- Financial and Market Risks and Risks Related to Owning Our Common Stock
- Our inability to raise additional capital on acceptable terms in the future may limit our ability to continue to operate our business and further expand our operations.
- The market price of our common stock may be volatile or may decline steeply or suddenly regardless of our operating performance, we may not be able to meet investor or analyst expectations, and you may lose all or part of your investment.
- Our quarterly results may fluctuate significantly, which could adversely impact the value of our common stock.
- Unstable market, economic and geo-political conditions may have serious adverse consequences on our business, financial condition and stock price.
- Adverse developments affecting the financial services industry could adversely affect our current and projected business operations and our financial condition and results of operations.
- We maintain our cash at financial institutions, often in balances that exceed federally insured limits.
- Insiders or holders of greater than five percent of our outstanding common stock may exercise significant control over our company and will be able to influence corporate matters.
- Future sales of shares by existing stockholders, or the perception that such sales could occur, could cause our stock price to decline.
- We do not currently intend to pay dividends on our common stock and, consequently, your ability to achieve a return on your investment will depend on appreciation of the value of our common stock.
- Future sales and issuances of our common stock or rights to purchase common stock, including pursuant to our equity incentive plans and under our at-the-market facility, could result in additional dilution of the percentage ownership of our stockholders and could cause the stock price of our common stock to decline.
- If securities or industry analysts do not publish research or reports about our business, or publish inaccurate or unfavorable research about our business, our stock price and trading volume could decline.
- Holders of our common stock could be adversely affected if we issue preferred stock.
- Our ability to use net operating losses to offset future taxable income may be subject to limitations.
- Delaware law and provisions in our amended and restated certificate of incorporation and amended and restated bylaws could make a merger, tender offer, or proxy contest difficult, thereby depressing the trading price of our common stock.
- Our amended and restated certificate of incorporation provides that the Court of Chancery of the State of Delaware and the federal district courts of the U.S. will be the exclusive forums for substantially all disputes between us and our stockholders, which could limit our stockholders’ ability to obtain a favorable judicial forum for disputes with us or our directors, officers, or employees.
- The requirements of being a public company consume substantial resources, may result in litigation and may divert management’s attention.
- We currently are a smaller reporting company, and any decision on our part to avail ourselves of certain reduced reporting and disclosure requirements applicable to smaller reporting companies could make our common stock less attractive to investors.
- Our disclosure controls and procedures may not prevent or detect all errors or acts of fraud.
- If we fail to maintain effective internal control over financial reporting in the future, the accuracy and timing of our financial reporting may be adversely affected.
Legal proceedings
See the disclosure under the heading "Contingencies" in Note 11 to our consolidated financial statements.
The opening of Item 3, Legal Proceedings.6
Links
- Websitewww.personalis.com1
- WikidataQ30260685
- SEC EDGARCIK 1527753
Sources
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- 15SEC EDGARRichard Chen, President
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- 20SEC EDGARKenneth J. Widder, Board member
- 21SEC EDGAROlivia Kyusuk Bloom, Board member
- 22SEC EDGARLonnie Shoff, Board member
- 23SEC EDGARWoodrow A. Myers Jr., Board member
- 24SEC EDGARA. Blaine Bowman, Board member
- 25SEC EDGARAlan Colowick, Board member
- 26SEC EDGARJonathan Macquitty, Board member
- 27SEC EDGARKen Ludlum, Board member
- 28SEC EDGARPatrick J. Balthrop, Board member
- 29SEC EDGARPaul Ricci, Board member
- 30SEC EDGARKarin Eastham, Board member
- 31SEC EDGAROther events
- 32SEC EDGAROther events
- 33SEC EDGARResults of operations
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- 35SEC EDGAREntered a material agreement
- 36SEC EDGAROther events
- 37SEC EDGAROther events
- 38SEC EDGARShareholder vote
- 39SEC EDGARResults of operations
- 40SEC EDGARExecutive or director change
- 41SEC EDGARResults of operations
- 42SEC EDGARResults of operations
- 43NasdaqNasdaq calendar
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