Aaron Freidin - 21 Sep 2026 Form 4 Insider Report for GRAIL, Inc. (GRAL)

Reporting relationship: Chief Financial Officer
Issuer ticker: GRAL
Reported as of: 21 Sep 2026
Net transaction value: -$382,679
SEC form: 4
Accepted by SEC: 23 Sep 2026, 16:37:11 UTC
Prior SEC filing: 31 Aug 2026
Source filing: View source filing
Reporting owner signature: /s/Abram Barth, as Attorney-in-Fact for Aaron Freidin

Key filing fact

Aaron Freidin filed Form 4 for GRAIL, Inc. (GRAL) on 23 Sep 2026.

Key facts

This page summarizes Aaron Freidin's Form 4 filing for GRAIL, Inc. (GRAL).
3 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 23 Sep 2026, 16:37.

Change

Previous filing in this sequence was filed on 31 Aug 2026.
Current net transaction value: -$382,679.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0002024196 Primary reporting owner

Freidin Aaron

Relationship: Chief Financial Officer
Address: C/O GRAIL, INC., 250 S. MATHILDA AVE. SUITE 100, SUNNYVALE
Signature: /s/Abram Barth, as Attorney-in-Fact for Aaron Freidin
Signature date: 23 Sep 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

GRAL transaction

Common Stock

Sale

Transaction value: $164,136
Shares: -1,779
Change %: -0.7%
Price: $92.26
Shares after: 251,304
Date: 21 Sep 2026
Ownership: Direct
Footnotes: F1, F2

GRAL transaction

Common Stock

Sale

Transaction value: $169,048
Shares: -1,800
Change %: -0.72%
Price: $93.92
Shares after: 249,504
Date: 21 Sep 2026
Ownership: Direct
Footnotes: F1, F3

GRAL transaction

Common Stock

Sale

Transaction value: $49,495
Shares: -521
Change %: -0.21%
Price: $95.00
Shares after: 248,983
Date: 21 Sep 2026
Ownership: Direct
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 3 footnotes

Footnote F1

The sale transactions reported in this Form 4 are made pursuant to a Rule 10b5-1 trading plan adopted on December 11, 2025

Footnote F2

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $92.19 to $93.00 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate sales price within the range set forth in this footnote

Footnote F3

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $93.89 to $94.33 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate sales price within the range set forth in this footnote