Company · Ownership research

Personalis, Inc. PSNL

CIK 0001527753

Form 4 transactions dated Sep 1, 2023 to Sep 27, 2026, as reported to the SEC.

Insider trading Initial holdings Institutional holders

Insider filings on file run through 2026-07-15.

Insider purchases & sales

Purchased: $20.50M
Sold: $8.83M

Sep 1, 2023 – Jul 15, 2026
Available records · partial months are marked ·

202510 of 19 preview events

Date	Insider	Activity	Trade value (USD)	% of prior holding
2025-12-22	Tempus AI, Inc. 10% owner	Purchase	$250.04K 28,000 shares bought	0.22% added Direct holding	▾
2025-12-19	Tempus AI, Inc. 10% owner	Purchase	$248.69K 29,641 shares bought	0.23% added Direct holding	▾
2025-12-18	Tempus AI, Inc. 10% owner	Purchase	$248.61K 31,430 shares bought	0.24% added Direct holding	▾
2025-12-17	Tempus AI, Inc. 10% owner	Purchase	$248.77K 31,650 shares bought	0.25% added Direct holding	▾
2025-11-25	Tempus AI, Inc. 10% owner	Purchase	$250.66K 23,600 shares bought	0.18% added Direct holding	▾
2025-11-25	Tachibana Aaron CFO AND COO	Sale10b5-1 footnote	$1.12M 103,668 shares sold	38.66% sold Direct holding	▾
2025-11-24	Tempus AI, Inc. 10% owner	Purchase	$248.97K 25,225 shares bought	0.20% added Direct holding	▾
2025-11-21	Tempus AI, Inc. 10% owner	Purchase	$249.19K 26,499 shares bought	0.21% added Direct holding	▾
2025-11-20	Tempus AI, Inc. 10% owner	Purchase	$248.78K 28,827 shares bought	0.22% added Direct holding	▾
2025-11-19	Tempus AI, Inc. 10% owner	Purchase	$248.84K 30,645 shares bought	0.24% added Direct holding	▾

Showing 19 / 19 record groups in 2025. The complete set is available through the API.

Personalis, Inc. · PSNL

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The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. For the year shown, this page lists 19 of 19 purchase / sale groups and 12 of 12 other groups; the totals and the monthly series cover the whole window.

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{"ticker":"PSNL","transaction_code":["P","S"],"transaction_form_type":"4","page_size":20}

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Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.

Non-cancelled, non-derivative purchase (P) and sale (S) rows dated inside the public window, as reported. Includes open-market and private transactions. Data after the latest filing is not asserted complete and is not zero-filled. A grouped event shares filing, transaction date, security, code, direction, ownership bucket and source. Derivative groups also match underlying security, exercise price, exercise/expiration dates and footnote references. Reported rows are retained; P/S price lots can be grouped. Post-transaction balances are never summed.