Personalis, Inc. (PSNL)
Nasdaq: PSNL · Services-Medical Laboratories · Fremont, CA · filing with the SEC since 2011
Who owns Personalis, Inc.
As filed with the SECHolders of 5% or more
5
Merck & Co., Inc. holds 16.5% of Common Stock, $0.0001 par value per share, as its SCHEDULE 13G filed Dec 23, 2024 says.
Directors and officers
10
report now, of 17 people on the record since 2019. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 5 named at left.
Holders of 5% or moreshare of the class, as filed
Merck & Co., Inc.
SCHEDULE 13G · filed Dec 23, 2024 · Common Stock, $0.0001 par value per share
Tempus AI, Inc.
SCHEDULE 13D/A · filed Jul 21, 2026 · Common Stock, $0.0001 par value · 14.5% in Sep 12, 2025
ARK Investment Management LLC
SCHEDULE 13G/A · filed May 14, 2025 · Common Stock · 9.59% in Feb 14, 2025
Blackrock, Inc.
SCHEDULE 13G · filed Jul 29, 2026 · Common Stock · 3.5% in Feb 5, 2025
Ameriprise Financial, Inc.
SCHEDULE 13G/A · filed Aug 14, 2026 · Common Stock · 7.1% in Feb 17, 2026
T. Rowe Price Investment Management, Inc.
SCHEDULE 13G/A · filed Apr 8, 2026 · COMMON STOCK · reported falling below 5%, from 12.1% in Jan 8, 2026
Deep Track Capital, LP
SCHEDULE 13G/A · filed Aug 14, 2026 · Common Stock, $0.0001 par value per share · reported falling below 5%, from 5.51% in May 12, 2026
Orin Hirschman
SCHEDULE 13G/A · filed Jan 29, 2026 · Common Stock · reported falling below 5%, from 6.1% in Feb 10, 2025
Lightspeed Venture Partners Select IV, L.P.
SCHEDULE 13D/A · filed Jun 10, 2026 · Common Stock, par value $0.0001 per share · reported falling below 5%
What PSNL reports owning in othersstakes of 5% or more, and other ties
1 subsidiary in 1 country, from the list filed with the 10-K filed Feb 26, 2026.
Insider tradesForm 4
16sales
0purchases
11sales on a scheduled plan
4people selling
$9.0Msold, in dollars
$0bought, in dollars
Open-market trades on Form 4 from Nov 4, 2025 to Nov 4, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
2026 runs to Nov 4, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window5 of 37 on the roster
| Person | Role as filed | Sales | Sold | On a plan | Buys | Bought |
|---|---|---|---|---|---|---|
| Hall Christopher M | Chief Executive Officer | 6 | $4.5M | 4 | 0 | $0 |
| Tachibana Aaron | CFO AND COO | 7 | $2.9M | 6 | 0 | $0 |
| Chen Richard | President and CMO | 2 | $1.6M | 1 | 0 | $0 |
| Tempus Ai, Inc. | 10% owner | 0 | $0 | 0 | 12 | $2.7M |
| Moore Stephen Michael | SVP and Chief Legal Officer | 1 | $0 | 0 | 0 | $0 |