Tachibana: 40,000-option exercise, 38,799 shares sold

Aaron L. Tachibana reported mixed transactions involving Common Stock of PSNL.

Rhea-AI Filing Summary

Aaron L. Tachibana reported mixed transactions involving Common Stock of PSNL. The filing lists 40,000 shares tied to an exercise of stock options dated 06/04/2026 and records prior 10b5-1 sales of 38,799 shares on 05/29/2026 producing $449,273.02. The excerpt also shows a numeric line associating 40,000 shares with $431,200.00 and a figure of 104,721,098 appearing alongside 06/04/2026.

Insights

Insider Transactions Counsel

Routine insider activity: option exercise plus rule-based sales reported.

The excerpt documents an exercise of stock options for 40,000 shares dated 06/04/2026 and prior 10b5-1 sales of 38,799 shares on 05/29/2026. The filing lists monetary figures ($431,200.00 and $449,273.02) adjacent to those share counts.

These items are procedural disclosures that describe how shares were transacted and reported. Timing and cash‑flow treatment beyond the lines shown are not detailed in the provided excerpt; subsequent filings or broker records would show final settlement details.

Key Figures

Option exercise shares: 40,000 shares Associated value (line item): $431,200.00 10b5-1 sales shares: 38,799 shares +2 more

5 metrics

Option exercise shares 40,000 shares exercise of stock options on <date>06/04/2026</date>

Associated value (line item) $431,200.00 appears on same row as 40,000 shares dated <date>06/04/2026</date>

10b5-1 sales shares 38,799 shares sales on <date>05/29/2026</date>

Proceeds shown for 10b5-1 sales $449,273.02 amount associated with 38,799 shares on <date>05/29/2026</date>

Numeric data line 104,721,098 appears alongside other security metadata with date <date>06/04/2026</date>

Key Terms

Form 144, 10b5-1, exercise of stock options

3 terms

Form 144 regulatory

"Securities To Be Sold — Common | 06/04/2026 | Exercise of Stock Options"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

10b5-1 regulatory

"10b5-1 Sales for AARON L TACHIBANA ... Common | 05/29/2026"

A 10b5-1 plan is a pre-set schedule that lets company insiders buy or sell shares according to written instructions made when they do not possess material, nonpublic information. Think of it as a timed automatic payment for stock trades: it helps insiders avoid accusations of trading on secret information and gives outside investors a clearer signal about whether sales are routine or potentially informative about the company’s prospects.

exercise of stock options financial

"Securities To Be Sold — Common | 06/04/2026 | Exercise of Stock Options"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did the PSNL Form 144 disclose about Aaron L. Tachibana's trades?

The filing discloses an exercise of options for 40,000 shares dated 06/04/2026 and prior 10b5-1 sales of 38,799 shares on 05/29/2026, with monetary figures shown alongside those counts.

How much cash is shown from the 10b5-1 sales on PSNL filings?

The excerpt shows $449,273.02 tied to 38,799 shares sold under a 10b5-1 plan on 05/29/2026, reported in the ‘‘Securities Sold During The Past 3 Months’’ section.

Does the filing show proceeds from the 40,000 share option exercise for PSNL?

A numeric line pairs 40,000 shares with $431,200.00 dated 06/04/2026; the excerpt presents this association but does not elaborate on final cash‑flow recipients or net proceeds detail.

What is a 10b5-1 sale referenced in the PSNL excerpt?

A 10b5-1 sale is a prearranged trading plan permitting scheduled sales by an insider; the excerpt reports such sales of 38,799 shares on 05/29/2026 with proceeds shown as $449,273.02.

Is there an outstanding share count shown in this PSNL excerpt?

The excerpt includes the number 104,721,098 adjacent to 06/04/2026; the line does not label it explicitly here, but the figure appears in the same row as security metadata.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 06/04/2026 - 04:32 PM EDT Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001401786
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	Personalis, Inc.
SEC File Number	001-38943
Address of Issuer	6600 Dumbarton Circle Fremont CALIFORNIA 94555
Phone	(650)752-1300
Name of Person for Whose Account the Securities are To Be Sold	AARON TACHIBANA
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	40000	431200.00	104721098	06/04/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	06/04/2026	Exercise of Stock Options	Issuer			40000	06/04/2026	Cash

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
10b5-1 Sales for AARON L TACHIBANA 6600 Dumbarton Circle Fremont CA 94555	Common	05/29/2026	38799	449273.02

144: Remarks and Signature

Remarks
Date of Notice	06/04/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	08/07/2025
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Aaron Tachibana
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)