RAGUSA ROBERT P

RAGUSA ROBERT P serves as director, officer: Chief Executive Officer at GRAIL, Inc. (GRAL). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

0 trades

$0.00

Total Sells

5 trades

$9.75M

Net Position

Net Seller

$9.75M

Companies Traded

2

GRAL, TWST

Active Period

Mar 2021 – Apr 2026

5 total trades

Most Recent

Sell GRAL

Apr 9, 2026 · $6.16M

RAGUSA ROBERT P's Insider Trading at GRAIL, Inc. (GRAL)

Buys

0 · $0.00

Sells

4 · $8.35M

Total Shares Bought

0

Total Shares Sold

256,391

GRAL Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Apr 9, 2026	Sell	123,502	$49.92	$6.16M	518,582
Mar 9, 2026	Sell	8,441	$48.48	$409.2K	649,545
Mar 5, 2025	Sell	994	$41.51	$41.3K	0
Oct 17, 2024	Sell	123,454	$14.02	$1.73M	612,661

RAGUSA ROBERT P's Insider Trading at Twist Bioscience Corporation (TWST)

Buys

0 · $0.00

Sells

1 · $1.41M

Total Shares Bought

0

Total Shares Sold

10,588

TWST Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Mar 5, 2021	Sell	10,588	$133.05	$1.41M	10,187

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TWSTSell · Jun 10, 2026

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See Remarks

TWSTSell · Jun 10, 2026

WERNER ROBERT F.

officer: Chief Accounting Officer

TWSTSell · Jun 10, 2026

Emily M. Leproust

director, officer: Chief Executive Officer

TWSTSell · Jun 10, 2026

Andrew John Partridge

officer: Chief Growth Officer

GRALSell · Jun 5, 2026

Adam Laponis

officer: Chief Financial Officer

TWSTSell · Jun 2, 2026

Melissa A. Starovasnik

director

TWSTSell · Jun 1, 2026

Patrick John Finn

President and COO

TWSTSell · May 26, 2026

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