PSNL Insider Trading

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Insider Trading History
Frequently Asked Questions
About

Insider Ownership Percentage: 3.80%

Insider Buying (Last 12 Months): $0.00

Insider Selling (Last 12 Months): $1,423,931.63

Personalis Insider Trading History Chart

Personalis Share Price & Price History

^$6.34

▼ -0.98 (-13.39%)

As of 03/27/2026 05:00 PM ET

Days: 30 | 90 | 365

Personalis Insider Trading History

Transaction Date	Insider Name	Title	Buy/Sell	Number of Shares	Average Share Price	Total Transaction	Shares Held After Transaction
1/22/2026	Aaron Tachibana	CFO	Sell	1,201	$11.50	$13,811.50	164,458
11/25/2025	Aaron Tachibana	CFO	Sell	103,668	$10.78	$1,117,541.04	164,458
11/3/2025	Christopher M. Hall	CEO	Sell	29,612	$8.99	$266,211.88	148,486
7/28/2025	Aaron Tachibana	CFO	Sell	641	$6.57	$4,211.37	164,458
7/28/2025	Richard Chen	EVP	Sell	452	$6.57	$2,969.64	124,505
5/16/2025	Aaron Tachibana	CFO	Sell	1,291	$4.95	$6,390.45	165,099
5/16/2025	Richard Chen	EVP	Sell	910	$4.95	$4,504.50	124,957
5/16/2025	Stephen Michael Moore	SVP	Sell	1,675	$4.95	$8,291.25	64,200
1/28/2025	Aaron Tachibana	CFO	Sell	708	$5.79	$4,099.32	166,390
1/28/2025	Richard Chen	EVP	Sell	519	$5.79	$3,005.01	123,367
11/18/2024	Aaron Tachibana	CFO	Sell	1,307	$3.79	$4,953.53	173,963
11/18/2024	Richard Chen	EVP	Sell	921	$3.79	$3,490.59	128,720
11/18/2024	Stephen Michael Moore	SVP	Sell	1,693	$3.79	$6,416.47	67,388
7/30/2024	Aaron Tachibana	CFO	Sell	742	$2.97	$2,203.74	175,270
7/30/2024	Richard Chen	EVP	Sell	524	$2.97	$1,556.28	127,227
5/17/2024	Aaron Tachibana	CFO	Sell	1,333	$1.38	$1,839.54	183,188
5/17/2024	Richard Chen	EVP	Sell	940	$1.38	$1,297.20	132,806
5/17/2024	Stephen Michael Moore	SVP	Sell	1,731	$1.38	$2,388.78	70,666
4/30/2024	Stephen Michael Moore	SVP	Sell	4,523	$1.37	$6,196.51	72,397
1/29/2024	Aaron Tachibana	CFO	Sell	716	$1.37	$980.92	184,521
1/29/2024	Richard Chen	EVP	Sell	526	$1.37	$720.62	128,870
12/15/2023	Aaron Tachibana	CFO	Sell	6,747	$1.47	$9,918.09	185,237
12/15/2023	Richard Chen	EVP	Sell	4,708	$1.47	$6,920.76	129,396
12/15/2023	Stephen Michael Moore	General Counsel	Sell	1,476	$1.47	$2,169.72	76,920
11/16/2023	Aaron Tachibana	CFO	Sell	1,344	$1.04	$1,397.76	191,984
11/16/2023	Richard Chen	EVP	Sell	940	$1.04	$977.60	124,104
11/16/2023	Stephen Michael Moore	General Counsel	Sell	1,722	$1.04	$1,790.88	78,396
11/1/2023	Christopher M. Hall	CEO	Sell	20,459	$0.93	$19,026.87	204,541
7/31/2023	Aaron Tachibana	CFO	Sell	662	$2.26	$1,496.12	193,328
7/31/2023	Richard Chen	EVP	Sell	485	$2.26	$1,096.10	125,044
6/16/2023	Aaron Tachibana	CFO	Sell	6,904	$2.07	$14,291.28	193,990
6/16/2023	Richard Chen	EVP	Sell	4,817	$2.07	$9,971.19	125,529
6/16/2023	Stephen Michael Moore	General Counsel	Sell	1,509	$2.07	$3,123.63	80,118
5/17/2023	Aaron Tachibana	CFO	Sell	1,389	$1.98	$2,750.22	200,894
5/17/2023	Richard Chen	EVP	Sell	971	$1.98	$1,922.58	130,346
5/17/2023	Stephen Michael Moore	General Counsel	Sell	1,781	$1.98	$3,526.38	81,627
5/2/2023	Stephen Michael Moore	General Counsel	Sell	5,102	$2.29	$11,683.58	83,408

SEC Filings (Institutional Ownership Changes) for Personalis (NASDAQ:PSNL)

61.91% of Personalis stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

Personalis Institutional Trading History

Reporting Date	Hedge Fund	Shares Held	Market Value	% of Portfolio	Quarterly Change in Shares	Ownership in Company
3/20/2026	Hsbc Holdings PLC	10,474	$84K	0.0%	-79.6%	0.010%
3/3/2026	Caitong International Asset Management Co. Ltd	3,423	$27K	0.0%	+76.1%	0.003%
2/19/2026	T. Rowe Price Investment Management Inc.	10,780,290	$85.81M	0.1%	+273.9%	12.140%
2/18/2026	Oracle Investment Management Inc.	339,343	$2.70M	1.6%	+47.9%	0.382%
2/18/2026	XTX Topco Ltd	39,412	$0.31M	0.0%	-52.3%	0.044%
2/18/2026	First Manhattan CO. LLC.	373,822	$2.98M	0.0%	N/A	0.421%
2/17/2026	Guggenheim Capital LLC	13,578	$0.11M	0.0%	N/A	0.015%
2/17/2026	AQR Capital Management LLC	10,240	$82K	0.0%	N/A	0.012%
2/17/2026	Price T Rowe Associates Inc. MD	1,448,585	$11.53M	0.0%	+1,332.2%	1.631%
2/17/2026	T. Rowe Price Investment Management Inc.	1,938,037	$15.43M	0.0%	-32.8%	2.182%
2/17/2026	Royal Bank of Canada	79,310	$0.63M	0.0%	-48.6%	0.089%
2/16/2026	Verition Fund Management LLC	51,804	$0.41M	0.0%	N/A	0.058%
2/16/2026	Next Century Growth Investors LLC	624,363	$4.97M	0.3%	N/A	0.703%
2/16/2026	Kennedy Capital Management LLC	1,712,652	$13.63M	0.3%	-11.5%	1.929%
2/16/2026	Barclays PLC	119,951	$0.96M	0.0%	+4.5%	0.135%
2/16/2026	Bruce & Co. Inc.	233,000	$1.86M	0.6%	-7.9%	0.262%
2/13/2026	The Manufacturers Life Insurance Company	15,745	$0.13M	0.0%	-9.8%	0.018%
2/13/2026	Stifel Financial Corp	13,933	$0.11M	0.0%	-71.0%	0.016%
2/13/2026	State Street Corp	1,050,590	$8.36M	0.0%	+13.4%	1.183%
2/13/2026	Caitong International Asset Management Co. Ltd	5,536	$44K	0.1%	+184.8%	0.006%
2/13/2026	Wells Fargo & Company MN	64,251	$0.51M	0.0%	+36.9%	0.072%
2/13/2026	Howland Capital Management LLC	547,115	$4.36M	0.2%	+65.5%	0.616%
2/12/2026	HRT Financial LP	97,772	$0.78M	0.0%	N/A	0.110%
2/12/2026	DRW Securities LLC	10,483	$83K	0.0%	N/A	0.012%
2/12/2026	Brooklyn Investment Group	12,045	$96K	0.0%	-89.1%	0.014%
2/12/2026	MetLife Investment Management LLC	18,658	$0.15M	0.0%	-37.4%	0.021%
2/12/2026	Renaissance Technologies LLC	92,994	$0.74M	0.0%	-79.5%	0.105%
2/12/2026	Dimensional Fund Advisors LP	983,174	$7.83M	0.0%	+1.0%	1.107%
2/12/2026	AlphaCentric Advisors LLC	47,796	$0.38M	0.4%	N/A	0.054%
2/12/2026	IQ EQ FUND MANAGEMENT IRELAND Ltd	267,674	$2.13M	0.1%	+44.7%	0.301%
2/12/2026	Polen Capital Management LLC	50,705	$0.40M	0.0%	N/A	0.057%
2/11/2026	ARK Investment Management LLC	7,879,087	$62.72M	0.4%	-0.4%	8.873%
2/11/2026	Janney Montgomery Scott LLC	30,000	$0.24M	0.0%	+20.0%	0.034%
2/11/2026	Deutsche Bank AG	38,827	$0.31M	0.0%	+4.5%	0.044%
2/11/2026	Amova Asset Management Americas Inc.	518,441	$4.13M	0.0%	-12.3%	0.584%
2/11/2026	LPL Financial LLC	132,343	$1.05M	0.0%	-1.3%	0.149%
2/10/2026	TD Asset Management Inc	271,876	$2.16M	0.0%	+398.1%	0.306%
2/10/2026	Goldman Sachs Group Inc.	342,475	$2.73M	0.0%	-40.3%	0.386%
2/10/2026	AXQ Capital LP	14,965	$0.12M	0.0%	N/A	0.017%
2/10/2026	Intech Investment Management LLC	20,342	$0.16M	0.0%	+23.4%	0.023%
2/9/2026	Geode Capital Management LLC	1,297,807	$10.33M	0.0%	-2.7%	1.461%
2/9/2026	Wellington Shields Capital Management LLC	340,000	$2.71M	0.4%	+16.4%	0.383%
2/6/2026	Nano Cap New Millennium Growth Fund L P	290,000	$2.31M	2.0%	N/A	0.327%
2/4/2026	Perkins Capital Management Inc.	239,000	$1.90M	1.5%	-5.3%	0.269%
2/3/2026	International Assets Investment Management LLC	3,900	$31K	0.0%	N/A	0.004%
2/2/2026	AIGH Capital Management LLC	2,900,000	$23.08M	5.6%	-25.5%	3.266%
1/29/2026	D.A. Davidson & CO.	145,507	$1.16M	0.0%	N/A	0.164%
1/29/2026	UBS Group AG	306,568	$2.44M	0.0%	+3.7%	0.345%
1/29/2026	China Universal Asset Management Co. Ltd.	14,471	$0.12M	0.0%	-6.9%	0.016%
1/23/2026	Sumitomo Mitsui Trust Group Inc.	518,441	$4.13M	0.0%	-12.3%	0.584%
1/16/2026	Aberdeen Group plc	3,249,895	$25.87M	0.0%	+36.1%	3.660%
1/9/2026	SG Americas Securities LLC	44,678	$0.36M	0.0%	N/A	0.050%
1/7/2026	Green Alpha Advisors LLC	68,517	$0.55M	0.5%	+141.3%	0.077%
1/1/2026	JPMorgan Chase & Co.	24,833	$0.16M	0.0%	-15.8%	0.028%
11/19/2025	Oracle Investment Management Inc.	229,435	$1.50M	0.9%	N/A	0.258%
11/17/2025	XTX Topco Ltd	82,709	$0.54M	0.0%	N/A	0.093%
11/17/2025	Susquehanna Fundamental Investments LLC	108,951	$0.71M	0.0%	-25.7%	0.123%
11/17/2025	Millennium Management LLC	1,210,754	$7.89M	0.0%	+11.0%	1.363%
11/17/2025	MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	64,665	$0.42M	0.0%	-7.5%	0.073%
11/17/2025	Brevan Howard Capital Management LP	14,855	$97K	0.0%	N/A	0.017%
11/17/2025	Bank of America Corp DE	33,899	$0.22M	0.0%	-84.7%	0.038%
11/17/2025	Ameriprise Financial Inc.	299,025	$1.95M	0.0%	-9.3%	0.337%
11/14/2025	Brooklyn Investment Group	110,883	$0.72M	0.0%	N/A	0.125%
11/14/2025	Squarepoint Ops LLC	18,886	$0.12M	0.0%	N/A	0.021%
11/13/2025	Kennedy Capital Management LLC	1,935,078	$12.62M	0.3%	+196.2%	2.179%
11/13/2025	UBS Group AG	295,564	$1.93M	0.0%	+146.7%	0.333%
11/13/2025	BNP Paribas Financial Markets	14,796	$96K	0.0%	+129.4%	0.017%
11/13/2025	FourThought Financial Partners LLC	13,145	$86K	0.0%	N/A	0.015%
11/13/2025	Russell Investments Group Ltd.	4,153	$27K	0.0%	-51.0%	0.005%
11/12/2025	Barclays PLC	114,803	$0.75M	0.0%	-18.2%	0.129%
11/12/2025	Amova Asset Management Americas Inc.	590,996	$3.85M	0.0%	-6.8%	0.666%
11/12/2025	ARK Investment Management LLC	7,910,191	$51.57M	0.3%	+11.3%	8.907%
11/12/2025	Dimensional Fund Advisors LP	973,655	$6.35M	0.0%	+24.1%	1.096%
11/12/2025	Intech Investment Management LLC	16,491	$0.11M	0.0%	-37.3%	0.019%
11/10/2025	TD Asset Management Inc	54,584	$0.36M	0.0%	N/A	0.061%
11/10/2025	China Universal Asset Management Co. Ltd.	15,544	$0.10M	0.0%	-12.4%	0.018%
11/7/2025	GSA Capital Partners LLP	46,193	$0.30M	0.0%	-62.8%	0.052%
11/7/2025	Vanguard Group Inc.	3,006,410	$19.60M	0.0%	-4.2%	3.386%
11/7/2025	JPMorgan Chase & Co.	24,833	$0.16M	0.0%	-15.8%	0.028%
11/7/2025	Aberdeen Group plc	2,387,947	$15.57M	0.0%	+35.7%	2.689%
11/6/2025	Rhumbline Advisers	74,115	$0.48M	0.0%	-6.5%	0.084%
11/6/2025	ProShare Advisors LLC	11,733	$76K	0.0%	-13.6%	0.013%
11/5/2025	Wellington Shields Capital Management LLC	292,135	$1.91M	0.3%	-31.5%	0.329%
11/5/2025	IQ EQ FUND MANAGEMENT IRELAND Ltd	185,036	$1.21M	0.1%	+99.3%	0.209%
10/31/2025	AIGH Capital Management LLC	3,892,101	$25.38M	7.2%	+4.5%	4.389%
10/29/2025	Howland Capital Management LLC	330,673	$2.16M	0.1%	+15.9%	0.373%
10/27/2025	Sumitomo Mitsui Trust Group Inc.	590,996	$3.85M	0.0%	-7.7%	0.666%
10/15/2025	Green Alpha Advisors LLC	28,391	$0.19M	0.2%	-10.8%	0.032%
10/14/2025	Farther Finance Advisors LLC	10,069	$66K	0.0%	N/A	0.011%
8/16/2025	Nikko Asset Management Americas Inc.	634,317	$4.16M	0.0%	-6.2%	0.715%
8/15/2025	Tower Research Capital LLC TRC	6,418	$42K	0.0%	-86.4%	0.007%
8/15/2025	Howland Capital Management LLC	285,308	$1.87M	0.1%	+0.9%	0.322%
8/15/2025	Man Group plc	49,373	$0.32M	0.0%	N/A	0.056%
8/15/2025	BNP Paribas Financial Markets	6,451	$42K	0.0%	+406.4%	0.007%
8/15/2025	Bank of America Corp DE	222,011	$1.46M	0.0%	+10.5%	0.250%
8/15/2025	Ameriprise Financial Inc.	329,865	$2.16M	0.0%	+1,172.0%	0.372%
8/14/2025	MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	69,923	$0.46M	0.0%	N/A	0.079%
8/14/2025	The Manufacturers Life Insurance Company	18,757	$0.12M	0.0%	N/A	0.021%
8/14/2025	Qube Research & Technologies Ltd	19,237	$0.13M	0.0%	-95.2%	0.022%
8/14/2025	Blue Water Life Science Advisors LP	1,676,300	$11M	8.7%	+42.6%	1.890%

Data available starting January 2016

Personalis, Inc. develops and markets advanced cancer genomic tests and analytics primarily in the United States, Europe, and the Asia-Pacific. Its tests and analytics are used by pharmaceutical companies for translational research, biomarker discovery, and development of personalized cancer therapies, as well as advanced tests are used by physicians to detect cancer recurrence, monitor cancer evolution, and uncover insights for therapy selection. The company offers NeXT Personal, a tumor-informed liquid biopsy test for detection of minimal residual disease (MRD) and recurrence in cancer; and ImmunoID NeXT, a tissue-based test that combines whole exome (DNA) and whole transcriptome (RNA) sequencing data with advanced analytics to provide a multi-dimensional view of the tumor and the tumor microenvironment from a single sample. It also provides NeXT Personal Dx, a tumor-informed liquid biopsy test for detection of MRD and recurrence in cancer; and NeXT Dx, a comprehensive tumor profiling test that unlocks the entire exome (DNA) and transcriptome (RNA) with matched tumor-normal analysis. In addition, the company performs whole exome sequencing (WES) of cancer tissue and matched blood samples for diagnostic companies as an input to their products; and whole genome sequencing (WGS) on human samples for research projects, such as population sequencing initiatives, as well as offers sequencing and data analysis services to support population sequencing initiatives. Its customers include pharmaceutical companies, biopharmaceutical companies, diagnostics companies, universities, non-profits, government entities, and patients. The company was incorporated in 2011 and is headquartered in Fremont, California.

Today's Range

Now: $6.34

$6.24

$7.32

50 Day Range

MA: $8.47

$6.34

$11.25

52 Week Range

Now: $6.34

$2.83

$11.50

Volume

3,462,508 shs

Average Volume

1,668,973 shs

Market Capitalization

$663.35 million

P/E Ratio

N/A

Dividend Yield

N/A

Beta

2.02

Who are the company insiders with the largest holdings of Personalis?: Personalis' top insider investors include:
John Stephen West (CEO)
Aaron Tachibana (CFO)
Christopher M Hall (CEO)
Richard Chen (Insider)
Richard Chen (EVP)
Stephen Michael Moore (General Counsel)
Stephen Michael Moore (SVP)
Ken Ludlum (Director)
Lightspeed Venture Partners Se (Major Shareholder)
Llp Abingworth (Major Shareholder)
Learn More about top insider investors at Personalis.
Who are the major institutional investors of Personalis?: Personalis' top institutional shareholders include:
T. Rowe Price Investment Management Inc. — 12.14%
ARK Investment Management LLC — 8.87%
Aberdeen Group plc — 3.66%
AIGH Capital Management LLC — 3.27%
T. Rowe Price Investment Management Inc. — 2.18%
Kennedy Capital Management LLC — 1.93%
Learn More about top institutional investors of Personalis stock.
Which institutional investors are selling Personalis stock?: During the previous quarter, PSNL stock was sold by these institutional investors:
AIGH Capital Management LLC
T. Rowe Price Investment Management Inc.
Renaissance Technologies LLC
Goldman Sachs Group Inc.
Kennedy Capital Management LLC
Brooklyn Investment Group
Royal Bank of Canada
Sumitomo Mitsui Trust Group Inc.
During the previous year, company insiders that have sold Personalis company stock include:
John Stephen West (CEO)
Aaron Tachibana (CFO)
Christopher M Hall (CEO)
Richard Chen (Insider)
Learn More investors selling Personalis stock.
Which institutional investors are buying Personalis stock?: Within the last quarter, PSNL stock was acquired by institutional investors including:
T. Rowe Price Investment Management Inc.
Price T Rowe Associates Inc. MD
Aberdeen Group plc
Next Century Growth Investors LLC
First Manhattan CO. LLC.
Nano Cap New Millennium Growth Fund L P
TD Asset Management Inc
Howland Capital Management LLC