Personalis Ownership | Who Owns Personalis?

Overview Forecast RevenueFinancials Chart Transcripts

Personalis Ownership Summary

Personalis is owned by 62.69% institutional investors, 31.49% insiders, and 5.83% retail investors. Merck is the largest institutional shareholder, holding 23.01% of PSNL shares. ARK Genomic Revolution ETF is the top mutual fund, with 8.05% of its assets in Personalis shares.

PSNL Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Personalis	62.69%	31.49%	5.83%
Sector	Healthcare Stocks	279.19%	10.62%	-189.81%
Industry	Diagnostics & Research Stocks	47.99%	9.06%	42.96%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Merck	14.04M	23.01%	$81.18M
Ark investment management	6.78M	11.10%	$39.16M
Blackrock	3.29M	6.50%	$3.85M
Aigh capital management	3.80M	6.22%	$21.96M
Blackrock funding, inc. /de	2.96M	4.84%	$17.08M
Vanguard group	1.73M	2.84%	$10.03M
Millennium management	1.32M	2.16%	$7.61M
Blue water life science advisors, lp	1.13M	1.86%	$6.55M
Renaissance	920.87K	1.51%	$5.32M
Jacobs levy equity management	735.00K	1.45%	$859.96K

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Merck	14.04M	31.46%	$81.18M
Aigh capital management	3.80M	6.87%	$21.96M
Blue water life science advisors, lp	1.13M	5.80%	$6.55M
Perkins capital management	257.31K	1.32%	$1.49M
Wellington shields	292.49K	0.52%	$1.69M
Bruce	253.00K	0.47%	$1.46M
Wellington shields capital management	431.18K	0.44%	$2.49M
Ark investment management	6.78M	0.33%	$39.16M
Green alpha advisors	38.98K	0.18%	$225.32K
Entrypoint capital	47.51K	0.12%	$274.63K

Top Buyers

Holder	Shares	% Assets	Change
Merck	14.04M	31.46%	14.04M
Susquehanna group, llp	873.10K	0.00%	718.34K
Abrdn	297.89K	0.00%	297.89K
Qube research	398.52K	0.00%	267.74K
Dimensional fund advisors lp	410.08K	0.00%	242.14K

Top Sellers

Holder	Shares	% Assets	Change
Millennium management	1.32M	0.00%	-1.12M
Marshall wace, llp	70.01K	0.00%	-386.97K
Ark investment management	6.78M	0.33%	-310.09K
Vanguard group	1.73M	0.00%	-235.71K
Aigh capital management	3.80M	6.87%	-200.00K

New Positions

Holder	Shares	% Assets	Change	Value
Merck	14.04M	31.46%	14.04M	$81.18M
Abrdn	297.89K	0.00%	297.89K	$1.72M
Omers administration	81.40K	0.00%	81.40K	$470.49K
Entrypoint capital	47.51K	0.12%	47.51K	$274.63K
Dynamic technology lab private	43.69K	0.04%	43.69K	$252.00K

Sold Out

Holder	Change
Nelson, van denburg & campbell wealth management group	-100.00
Redwood wealth management group	-100.00
Creative planning	-157.00
Signaturefd	-257.00
Comerica bank	-283.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Mar 31, 2025	108	-0.92%	54,828,815	6.28%	62	0.88%	62	12.73%	28	-20.00%
Dec 31, 2024	59	-32.18%	23,614,794	-19.46%	38	1.68%	25	-37.50%	22	-24.14%
Sep 30, 2024	87	24.29%	29,319,370	33.53%	48	2.56%	40	110.53%	29	-
Jun 30, 2024	70	-4.11%	21,956,674	-1.41%	43	2.03%	19	-44.12%	29	20.83%
Mar 31, 2024	73	2.82%	22,271,122	1.31%	46	2.27%	34	-	24	20.00%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
ARK Genomic Revolution ETF	7.11M	8.05%	-
ARK Genomic Revolution	7.07M	8.01%	388.61K
Nikko Gbl All Biological Genome Eq MF	932.69K	1.41%	-150.91K
Vanguard US Total Market Shares ETF	1.21M	1.37%	-
abrdn Healthcare Investors	1.03M	1.16%	215.12K
abrdn Life Sciences Investors	984.60K	1.11%	90.40K
Vanguard Total Stock Mkt Idx Inv	813.30K	0.92%	260.70K
Vanguard Institutional Extnd Mkt Idx Tr	677.08K	0.77%	-
BlackRock Advantage Small Cap Core Instl	617.54K	0.70%	-5.18K
Kennedy Micro Cap	474.82K	0.54%	474.82K

Recent Insider Transactions

Date	Name	Role	Activity	Value
May 16, 2025	Tachibana Aaron	CFO AND COO	Sell	$6.39K
May 16, 2025	Moore Stephen Michael	SVP and Chief Legal Officer	Sell	$8.29K
May 16, 2025	Chen Richard	CHIEF MEDICAL OFFICER AND EVP	Sell	$4.50K
Jan 28, 2025	Tachibana Aaron	CFO AND COO	Sell	$4.10K
Jan 28, 2025	Chen Richard	CHIEF MEDICAL OFFICER AND EVP	Sell	$3.01K

Insider Transactions Trends

Date	Buy	Sell
2025 Q1	-	2
2024 Q4	-	7
2024 Q3	1	2
2024 Q2	-	7
2024 Q1	1	2

PSNL Ownership FAQ

Who Owns Personalis?

Personalis shareholders are primarily institutional investors at 62.69%, followed by 31.49% insiders and 5.82% retail investors. The average institutional ownership in Personalis's industry, Diagnostics & Research Stocks, is 47.99%, which Personalis exceeds.

Who owns the most shares of Personalis?

Personalis’s largest shareholders are Merck (14.04M shares, 23.01%), Ark investment management (6.78M shares, 11.10%), and Blackrock (3.29M shares, 6.50%). Together, they hold 40.60% of Personalis’s total shares outstanding.

Does Blackrock own Personalis?

Yes, BlackRock owns 6.50% of Personalis, totaling 3.29M shares as of Jun 2024. This represents 0.00% of BlackRock's total assets, with a market value of 3.85M$. In the last quarter, BlackRock increased its holdings by 11.39K shares, a 0.35% change.

Who is Personalis’s biggest shareholder by percentage of total assets invested?

Merck is Personalis’s biggest shareholder by percentage of total assets invested, with 31.46% of its assets in 14.04M Personalis shares, valued at 81.18M$.

Who is the top mutual fund holder of Personalis shares?

ARK Genomic Revolution ETF is the top mutual fund holder of Personalis shares, with 8.05% of its total shares outstanding invested in 7.11M Personalis shares.

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