SEC Form 4 reporting owner

Ragusa Robert P

Ragusa Robert P has filed 13 Form 4 transactions reported between December 3, 2025 and September 1, 2026, as a reporting owner of Alamar Biosciences, Inc., Chief Executive Officer of GRAIL, Inc. and a reporting owner of Twist Bioscience Corp.

Name as filed: RAGUSA ROBERT P

Open-market buys, 24 mo

None

reported

Open-market sales, 24 mo

$12.3M

10 lines

Companies

with Form 4 filings

Latest transaction

Sep 1, 2026

transaction date

Roles and reported holdings

ALMRAlamar Biosciences, Inc.
Sep 1, 2026
Reporting owner
No common-stock holding reported on a purchase, sale, gift or withholding line.
GRALGRAIL, Inc.
Dec 3, 2025 – Apr 8, 2026
Chief Executive Officer
Held directly518,582 sh as of Apr 8, 2026 · Form 4
24 months: $12.3M sold
TWSTTwist Bioscience Corp
Feb 5, 2026
Reporting owner
No common-stock holding reported on a purchase, sale, gift or withholding line.

Transaction history

All 13 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

Date	Company	Type	Shares	Price	Value	Owned after	Filing
Sep 1, 2026	ALMR	Grant or awardCode A · direct	25,599	—	—	25,599	Form 4
Sep 1, 2026	ALMR	Grant or awardCode A · direct	5,686	—	—	5,686	Form 4
Apr 8, 2026	GRALChief Executive Officer	Open-market saleCode S · direct	123,502	$49.92	$6.2M@ $49.92	518,582	Form 4
Mar 9, 2026	GRALChief Executive Officer	Open-market saleCode S · direct	258	$46.73	$12K@ $46.73	642,084	Form 4
Mar 9, 2026	GRALChief Executive Officer	Open-market saleCode S · direct	7,203	$47.93	$345K@ $47.93	642,342	Form 4
Mar 5, 2026	GRALChief Executive Officer	Open-market saleCode S · direct	980	$53.01	$52K@ $53.01	649,545	Form 4
Mar 2, 2026	GRALChief Executive Officer	Open-market saleCode S · direct	1,717	$51.84	$89K@ $51.84	650,525	Form 4
Mar 2, 2026	GRALChief Executive Officer	Open-market saleCode S · direct	35,787	$50.09	$1.8M@ $50.09	652,242	Form 4
Feb 5, 2026	TWST	Grant or awardCode A · direct	5,095	—	—	28,983	Form 4
Dec 3, 2025	GRALChief Executive Officer	Open-market saleCode S · direct	1,604	$97.28	$156K@ $97.28	688,029	Form 4
Dec 3, 2025	GRALChief Executive Officer	Open-market saleCode S · direct	8,233	$96.22	$792K@ $96.22	689,633	Form 4
Dec 3, 2025	GRALChief Executive Officer	Open-market saleCode S · direct	15,356	$95.28	$1.5M@ $95.28	697,866	Form 4
Dec 3, 2025	GRALChief Executive Officer	Open-market saleCode S · direct	14,807	$94.43	$1.4M@ $94.43	713,222	Form 4

How this page is built

Every row comes from a Form 4 filed with the SEC, which officers, directors and holders of more than 10% of a company’s stock must file within two business days of a trade. Transactions are grouped by the reporting owner’s name as filed (spacing, capitals and punctuation ignored); two different people filing under an identical name would appear together, and one person filing under two spellings appears on two pages.

Open-market totals count code P purchases and code S sales over the last 24 months. The same trade reported on more than one filing is counted once; when another owner (for example a fund and its general partner) reports the identical trade, they are listed beside it. Holdings are the shares owned after the latest purchase, sale, gift or tax-withholding line, shown separately for direct and indirect ownership; an indirect figure is one holding line, not a total across every trust or entity.

This page describes what was filed with the SEC; it is not investment advice or a recommendation to buy or sell any security.